What is transaction hash and how to find it? Freewallet ...

Mining Bitcoin

Bitcoin mining is analogous to the mining of gold, but its digital form. The process involves specialized computers solving algorithmic equations or hash functions. These problems help miners to confirm blocks of transactions held within the network. Bitcoin mining provides a reward for miners by paying out in Bitcoin in turn the miners confirm transactions on the blockchain. Miners introduce new Bitcoin into the network and also secure the system with transaction confirmation.


This sub is strictly focused on mining on the MiningPoolHub service.

QuarkCoin Cryptocurrency

Quark is a decentralized digital monetary system. It facilitates sending Quarks to Friends, Family Members Online Payments free of charges and charge-backs. Military Grade Encryption. No Bank or Government Control. Quark coins are based on the original idea of Bitcoin but improved, more secure, faster transaction times and zero fees. With improvements to design and security. There is also a greater coin supply with higher block rewards for miners. Quark is fully Open Source.

Bitcoin Transaction Hash Not Found for Withdrawal

I made a withdrawal and the bitcoin transaction hash provided by LBC does not exist. It has been two hours. There was no bitcoin sent to my address.
Please fix this. The transaction ID does NOT EXIST on blockchain.
submitted by computeruser12345 to localbitcoins [link] [comments]

SendLab : Send Encrypted Self Destructing Messages (Javascript Free, Open Sourced Alternative to PrivNote and Vialink)

SendLab : Send Encrypted Self Destructing Messages (Javascript Free, Open Sourced Alternative to PrivNote and Vialink)

Send Lab: App Source Code
I have read security concerns on Reddit regarding link-based message sending platforms.
This app runs without any JavaScript at all, so disabling scripts and running it in a tor browser (in safest mode) is easy and works well.
The app allows users to set their own key for a message, adding an additional layer of security. If the key is not provided, an environmentally injected key is used- and the app operates based on the link only (using a flag, indicating the message is to be decrypted with the environment key).
I have been considering extending the app to accept bitcoin transaction hashes as the key. Creating different links for BTC transaction based messages would allow users to send a link to the message, input the transaction hash, and receive a message for a BTC transaction. Any additional ideas or comments are welcome: GitHub Enhancement Issue: BTC TX

submitted by klbrkt to Bitcoin [link] [comments]

I'd like some advice about build a super fast hash processing rig.

Much like a multi GPU rig that processes bitcoin transaction hashes, but on a smaller and cost-reasonable scale.
Even if it were just a small rig connected to a PC via USB.
I'd like like it to be able to process EAPoL WPA handshake hashes at blazing fast speeds. Waiting for a pairing batch on Pyrit or hashcat on standard everyday desktops and laptops can take days.
I am not opposed to pre-built or build myself. But I'd really like to hear your ideas and advice.
submitted by slid3r to buildapc [link] [comments]

Segregated signatures signing a contract to open a 2-way peg to create a channel to bypass proof of work, allowing transactions to occur without individual hashes of chain tips which create new UTXOs ARE NOT BITCOIN.

submitted by thacypha to bitcoinsv [link] [comments]

We need a standard for Bitcoin blockchain timestamps! Proposal Inside! Feedback please!

Dear Bitcoiners and Bitcoinerettes
I have recently found great interest in using the Bitcoin blockchain for secure and trustless timestamping. This interest was mainly raised as I would have loved to have proof of certain data I and others produced in the past. I am not in the situation to need the proof now, but It could have come in handy one day. I previously asked on reddit about advice regarding creation of an email plugin which would keep timestamps for all my emails. I imagined this plugin to timestamp based on certain filter criteria.
The reactions on reddit were quite negative: Too expensive, too much bloat, blockchain spam. At the time I was discouraged and let it slip away as it seemed unfeasible.
I started to study the current implementations and services and created this overview:
Bitcoin Blockchain Timestamping Overview
I have no affiliation with any of these and I have also not tried all of these services!
After studying these concepts which I found, I came to several conclusions:
I think we are in need of a standard which will be used more often. Only if we have a standard which lots of users follow, Bitcoin timestamps can be widely used and accepted. Just imagine a court case where someone claims to have such a timestamp. Technical experts will have to be called in to state that this is in fact as close to proof as it gets that the timestamp was in fact made prior to date X. Now if everyone does it differently, everyone will have to pay for their own experts and it will take much longer until these timestamps are accepted plus it will overall be more expensive to get them accepted, if there are several predominant types. If we follow a standard these timestamps could get a certain credibility amongst non-technical people and would be accepted much faster.
So what would be ideal requirements for such a standard?
From these requirements I figured the following concept would be best:
To verify A timestamp one needs the following:
Actually it was sipa who pointed me to ChronoBit (in the list linked above) and making use of of Merkle trees to reduce bloat. My proposal as pointed out above derives from the concept of CronoBit in that it still creates a transaction. However, it borrows the concept of the hash tree from CronoBit and I guess from Bitcoin itself too ;-)
While ChronoBit is fully p2p and decentralized it bears the problem that you either need to be mining on p2p-pool yourself, or rely on others to be mining for you. The timestamps are somewhat limited to blocks found by p2p-pool. It is elegant as you have a direct connection to the block hash and no additional transactions are needed.
I am look at using a one Satoshi transaction for x timestamps is like forging a little unspendable colored coin which serves as anchor point for many timestamp participants.
A single stamper (private or service) can literally create thousands of timestamps in a daily transaction. The client must store a little bit more data compared to single timestamp models. That is not an awful lot of data even for thousands of documents; e.g. 1500 digits proof per document (including some identifiers) would suffice to join forces and have 250’000 timestamps in one transaction.
I guess the standard needs to be as flexible as possible. The format must be similar to PGP signatures or so. Something like: {document’s hash; transaction hash, Merkle tree branch depth, Merkle tree branch hashes, claimed blocktime of verified block}
I like the concept because it would enable a fully dynamic level of self crated Merkle tree and service created Merkle tree. Can either be done on top of own full Bitcoin node, or with a service. If a service is used the hash tree can still be continued. The service can do nothing but fool you for some minutes. There are no privacy issues as only hashes are sent in the first place. After the service created and sent the proof, it can vanish without the timestamp being lost for the user; 3rd party trust will not be a critical thing for most users.
I also want to discuss the way the address is created in my proposal above. Some current implementations create a private key first and then derive the address from it. This makes the transacted Satoshi potentially prunable. Someone could spend it with the private key which is commonly known. I want that Satoshi stuck forever.
With this scheme I think it would be feasible to timestamp as many emails and documents as I want without having huge costs and the bloat is somewhat justifiable...
After your valued feedback I would like to try to put together a paper and some kind of demo implementation.
Best regards and thanks for reading.
Things which are not entirely clear to me:
submitted by SimonBelmond to Bitcoin [link] [comments]

[ANN] Bitcoin WordPress Plugin for WooCommerce is released

Bitcoin WordPress Plugin for WooCommerce allows you to sell Bitcoin for fiat money like USD, EUR or any cryptocurrency
Bitcoin WordPress Plugin for WooCommerce is a Bitcoin Addon for the Cryptocurrency Product for WooCommerce. It is the only WooCommerce plugin that allows you to sell Bitcoin for fiat money like USD, EUR, … or any cryptocurrency WooCommerce supports.
Live demo
You can buy the Bitcoin Testnet (tBTC) for real money like USD or for cryptocurrency like real Bitcoin or Ether to test the Bitcoin Product for WooCommerce plugin in action.
Plugin URL: https://ethereumico.io/product/bitcoin-wordpress-plugin/
submitted by olegabr to Bitcoin [link] [comments]

Bitcoin Median Transaction Fee Drops to 6 Cents As Bitcoin Hash Rate Hits All Time Highs

On 22 Dec 2019, the Bitcoin median transaction fee was just 6 cents!
Median = is the value separating the higher half from the lower half of a data sample
Bitcoin hash rate on the same day was very close to all time high.
SegWit usage is fluctuating between 50% and 62%, and is very likely to hit all time highs soon.
The Bitcoin network is getting stronger, is resilient, reliable, fast and getting cheaper.
There are coins that offer faster transaction times, and / or cheaper fees, but they cannot compete with the Bitcoin network effects.
submitted by FluidAttitude to btc [link] [comments]

/r/Plex Lifetime Plex Pass Raffle Contest!

/Plex Lifetime Plex Pass Raffle Contest!

The contest is over. The winners have been announced below. Congratulations to the winners!

Reminder: You still have the opportunity to buy a lifetime Plex Pass for $119 USD while it is on sale!
Hello /Plex users!
Thanks to everyone for making /Plex such a great subreddit. We, the mods, have seen a lot of people helping out with great responses, and a lot of good discussion going on. We grew quite a bit this past year. In order to give back to the community, in the holiday spirit, we will be doing a Lifetime Plex Pass contest. Good luck to everyone!
The contest will be run as a raffle. Each entry is $1, up to a maximum of $10 (10 entries) per person. The entry period will be closed on Sunday, December 18, 2016, at 11:59:59pm PST. See the conversion to your timezone here. The drawing for the winner will be done shortly afterwards.
If you want to buy your own lifetime Plex Pass, it is currently discounted to $119 USD.
Please read the full contest rules below.

Contest Rules

  1. This contest is a raffle.
  2. Each entry is $1 USD (rounded down to the nearest whole dollar amount), up to a maximum of $10 (10 entries) per person. If you enter more than $10, you will only receive 10 entries. Entries beyond $10 USD will be void and invalid.
  3. Entries must be submitted using SwiftPanda16's PlexPy donation links below. Any other methods will not be accepted and your entries will void and invalid. (Do not use SwiftPanda16's ChangeTip donation link.)
  4. You must provide your Reddit username in the donation message (see "How to Enter" below) for the entry to be valid, otherwise the entry will not be associated with your account. Failure to include your Reddit username will result in your entry being void and invalid.
  5. Your Reddit account must be registered on or before Sunday, December 11, 2016. Reddit accounts registered after this date are not eligible for the contest.
  6. The total number of Plex Passes given away awarded will be based on the price of the lifetime Plex Pass at the time of the drawing that each Plex Pass is "unlocked" based on the total dollar amount of the entries received (see "Total Entries" below). If the price goes back up to $150, then, unfortunately, there will be fewer Plex Passes given away.
  7. 100% of the valid entries will go towards purchasing of Plex Passes. The more entries that are received, the more Plex Passes that will be given away! We (/Plex mods) will personally be funding the difference up to the next whole number Plex Pass(es). At least one Plex Pass will be given away.
    • Example: If the contributions total $200, we will fund the last $40 so that there will be two Plex Passes given away.
  8. Each user can only win a maximum of one (1) Plex Pass. Once a user has been selected, that user will be removed from the pool of entries for the drawing of the next Plex Pass.
  9. The selected winner(s) will be selected using Random.org after the entry period has closed.
  10. The selected winner(s) will be announced in this thread after the drawing (see "Winners" below).
  11. The selected winner(s) will be contacted and have 24 hours to respond. If the selected winner(s) does not respond within 24 hours, a new winner(s) will be selected until all Plex Passes are given away.
  12. Chances of winning will be based on the total number of entries received (see "Total Entries" below).
  13. /Plex mods are not eligible for the contest.
  14. Raffle entries will not be refunded after they have been received.

How to Enter

IMPORTANT: You must enter your Reddit username in the donation message for the entry to be valid and associated with your Reddit account.
NOTE: If you are buying more than one entry, please do so with one single transaction, instead of multiple $1 transactions, otherwise it will add additional PayPal fees.

Enter the contest here: Enter using PayPal | Enter using Bitcoin*

* Your number of Bitcoin entries will be calculated based on the BTC to USD conversion rate (rounded down to the nearest whole dollar amount) at the time of the entry.

Total Entries

The info below will be periodically updated to show the total number of entries.
  • Last updated: Monday, December 19, 2016 at 8:32 am PST
  • Current number of valid entries: $964.00 (964 entries)
  • Current number of invalid entries: $63.97 (63 entries)
  • Current number of Plex Passes: 8 Plex Passes
Some pretty charts and tables:
Plex Pass Date Unlocked Contribution from Entries Contribution from Mods
1 (Proof) 2016-12-12 $119.99 $0.00
2 (Proof) 2016-12-12 $119.99 $0.00
3 (Proof) 2016-12-13 $119.99 $0.00
4 (Proof) 2016-12-13 $119.99 $0.00
5 (Proof) 2016-12-14 $119.99 $0.00
6 (Proof) 2016-12-16 $119.99 $0.00
7 (Proof) 2016-12-16 $119.99 $0.00
8 (Proof) 2016-12-18 $124.07 $-4.08
Number of Entries Chances of Winning Rate of Return
1 0.83% 118.99x
2 1.65% 59.00x
3 2.47% 39.00x
4 3.28% 29.00x
5 4.09% 23.00x
6 4.89% 19.00x
7 5.68% 16.14x
8 6.47% 14.00x
9 7.25% 12.33x
10 8.03% 11.00x


Congratulations to the users listed below! You are now the owner of a shiny new lifetime Plex Pass!
Users have been contacted, and have 24 hours to respond in order to claim their prize.
  • (2016-12-12 10:13 pm) Update to rule #6.
  • (2016-12-12 11:02 pm) Update to rule #8, 9, 10, 12, 14.
submitted by SwiftPanda16 to PleX [link] [comments]


HOW TO CHECK BITCOIN TRANSACTION IN BLOCKCHAIN \TRANSACTION HASH ID\PAYM... submitted by meetsmarttech to blockchaintech [link] [comments]

Spirits, can you organize together and share a hash to the biggest bitcoin transaction currently in the bitcoin blockchain?

submitted by kezinaur to AskOuija [link] [comments]

Anyone got a local coinb.in page working under tails?

Has anyone gotten a local copy of coinb.in working under tails? I copied the html/css/javascript files on my local drive, but it only loads the html, but not css and javascript files. It works fine on my regular linux partition, so I know it's not the files.
Or, does anyone know of another way to sign a multi-sig transaction without using coinb.in under tails? I can sign a message using electrum, but I can't seem to correctly sign a bitcoin transaction hash successfully using it.
submitted by steveeq1 to tails [link] [comments]


BITCOIN (BTC) 2019 TRANSACTION & HASH RATE SUMMARY submitted by DueDEX_Daisy to DueDEXOfficial [link] [comments]


BITCOIN (BTC) 2019 TRANSACTION & HASH RATE SUMMARY submitted by DueDEX_Daisy to DueDEXOfficial [link] [comments]

Nano Achieves Nearly 4 Times Bitcoin's Confirmed Daily Transaction Throughput » The Merkle Hash

Nano Achieves Nearly 4 Times Bitcoin's Confirmed Daily Transaction Throughput https://upload.news/33m9fu
submitted by GaryPalmerJr to MintingCoins [link] [comments]

Transaction hash and destination address not showing on Coinbase... is my bitcoin gone?

I recently made a transaction withdrawal on coinbase pro a few days ago and when I went to check today, the withdrawal shows as confirmed but it is not in my hardware wallet where I was sending it.
Unlike all my other transactions (I've made some after that, that went through immediately), there is no destination address or transaction hash, which is really weird, so it's not on the blockchain.
Where would the money have gone? I have done a bunch of research and could not find this problem posted anywhere.
I reached out to support but haven't heard back. It was quite a bit of money so I'm not feelin too hot at the moment lol so any feedback would be awesome. I'm pretty meticulous about putting in the proper destination address so really don't think it's that.
I'm assuming it's a coinbase error but can't think of any other ideas. Any feedback would be greatly appreciated. Thanks guys
submitted by myphenomfitness to Bitcoin [link] [comments]

Bitcoin Interests Spikes! Hash rate All Time high | Bitcoin Global Transactions | Bullish Divergence

Bitcoin Interests Spikes! Hash rate All Time high | Bitcoin Global Transactions | Bullish Divergence submitted by Etherpong to CryptoTradingFloor [link] [comments]

Bitcoin Interests Spikes! Hash rate All Time high | Bitcoin Global Transactions | Bullish Divergence

Bitcoin Interests Spikes! Hash rate All Time high | Bitcoin Global Transactions | Bullish Divergence submitted by Etherpong to CryptoCurrencies [link] [comments]

So if all the hash move from BTC to BCH to fight control of Real Bitcoin is there a danger BTC just stop working w/o enough hash to process transactions?

submitted by awless to btc [link] [comments]

Coinbase bitcoin transfer still pending after over 20 hours! Does not appear on blockchain. "No transaction found with the hash..." (zero confirmations, zero response from Coinbase) ** Warning: Other Users Experiencing Same Issue **

I sent $900 worth of bitcoin out of my Coinbase wallet over 20 hours ago. Coinbase says the transaction is "pending," yet it has 0 confirmations, and doesn't even show up on the blockchain.
The link Coinbase provides for the "transaction" returns with: "No transaction found with the hash..."
I posted about this problem yesterday. Lots of other users experiencing the same problem. Of course, no response from Coinbase.
submitted by MaxLangley to CoinBase [link] [comments]

Bitcoin receipt protocol

Hey bitcoiners, One thing I am missing in bitcoin, is a receipt protocol. Please have a look at your own bitcoin wallet. You will probably see a list of transactions. With for every transaction an amount and an address. Is this supposed to be banking 2.0?
That's why I thought a receipt system would be interesting, a few other reasons would be, doing analytics over your sendings, filing taxes, etz. I created a json file, with all the information you could find on a traditional receipt, discussion about the format would be interesting.
{ "title": "Coffee & Cake", "store": "Starbucks", "timestamp":"2015-04-23T18:25:43.511Z", "image_url": "https://starbucks.com/coffee.jpg", "items": [ { "name": "Coffee", "price": "$2.10" }, { "name": "Cake", "price": "$3.00" } ], "vat": "$0.60", "total": "$5.70", "payment": { "method": "bitcoin", "transaction_hash":"1234567890" }, "signature":"sfdajlksdjfkladsjfklasdjfkl", } 
I don't know yet the the best way to privately get the receipt from the merchant to the buyers wallet. In the ideal case the merchant signs the receipt and the only the holder of the private key is able to get this json-file. But there probably are some alternatives.
I need your input! Make your suggestions or shoot it :)
submitted by kaibakker to Bitcoin [link] [comments]

Can someone confirm, if I have bitcoins in a hardware wallet or bitcoin.com wallet, if I don’t do any transactions during the hash war, am I safe? Or do I need to move my (and help all my friends who have BCH) into some prepared wallet? Ryan X Charles has given me the chills.

And if we do need to move it, does that mean that thousands or even millions of people that aren’t paying attention are at risk?
submitted by BenIntrepid to btc [link] [comments]

@binance: What Is #⃣Hashing? There are many steps in #Bitcoin mining that involves hash functions, such as checking balances, linking transactions inputs/outputs, & hashing transactions within a block to form a Merkle 🌳 Learn why it matters with @BinanceAcademy👇 https://t.co/VJnAGFkBku

@binance: What Is #⃣Hashing? There are many steps in #Bitcoin mining that involves hash functions, such as checking balances, linking transactions inputs/outputs, & hashing transactions within a block to form a Merkle 🌳 Learn why it matters with @BinanceAcademy👇 https://t.co/VJnAGFkBku submitted by rulesforrebels to BinanceTrading [link] [comments]

Block Chain Transaction Hash ID How to get Hash ID or transactioin receipt of bitcoin on ... Blockchain tutorial 27: Bitcoin raw transaction and transaction id Coinbase - How to Find hash of the transaction - YouTube Coinbase hash Transaction ID

Transaction hash (txid) is an identifier used to uniquely identify a particular transaction. All on-chain transactions (the transactions from or to external addresses) have a unique txid that can be seen in transaction details. A transaction hash usually looks like a random set of letters and numbers. All on-chain transactions (depositing and withdrawing of funds) have a unique txid that can ... An transaction is a transfer of Bitcoin value that is broadcast to the network and collected into blocks. A transaction typically references previous transaction outputs as new transaction inputs and dedicates all input Bitcoin values to new outputs. Transactions are not encrypted, so it is possible to browse and view every transaction ever collected into a block. Once transactions are buried ... However, we concentrate our focus on tracking Bitcoin or Enthereum transaction hash ID from the Blockchain Explorer As every Blockchain based coin transaction has their unique harsh ID as a way to look up specific transaction on the explorer, locating the exact transaction hash ID of a particular transaction can sometime becomes a big problem for beginners and most savvy crypto investors, of ... Buying crypto like Bitcoin and Ether is as easy as verifying your identity, adding a payment and clicking "Buy". Sign up for our Wallet today. Height Age Transactions Total Sent Total Fees Block Size (in bytes) 654077: 2020-10-24T07:54:33.84Z: 1,769: 2,703.104 BTC: 0.251 BTC: 862,610: 654076: 2020-10-24T07 ...

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Block Chain Transaction Hash ID

How to find your Bitcoin Transaction hash ID in the top 4 eWallets Xapo Blockchain Coinbase Circle What is Hash ID and How to Find your Hash ID for Bitcoin t... Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. - What a Bitcoin transaction id or hash is and what its purpose is. - How to calculate the transaction id. In this video series different topics will be explained which will help you to understand ... Video tutorial on how to get the hash id transactions of bitcoins. Public