Block chain - Revision history

Theymos at 18:32, 22 February 2025

2025-02-22T18:32:40Z

← Older revision		Revision as of 18:32, 22 February 2025
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	The block chain is broadcast to all nodes on the networking using a flood protocol: see [[Block chain download]].		The block chain is broadcast to all nodes on the networking using a flood protocol: see [[Block chain download]].

	~~== Time chain ==~~

	[[Satoshi]] actually used the term time chain only at a later point the word ''blockchain'' became in widespread use, but mostly by promoters of [[altcoin]]s and consulting agencies marketing their services to big corporations and governments.

	== Blockchain nonsense ==		== Blockchain nonsense ==

WikiR: Removed unreachable and inactive links (bitupper.com, bitcoinchain.com, blockr.io, bchain.info, cryptoinsider.media) for accuracy.

2025-02-22T13:38:57Z

Removed unreachable and inactive links (bitupper.com, bitcoinchain.com, blockr.io, bchain.info, cryptoinsider.media) for accuracy.

← Older revision		Revision as of 13:38, 22 February 2025
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	== Time chain ==		== Time chain ==

	[[Satoshi]] actually used the term time chain~~.<ref>[https://cryptoinsider.media/timechain-satoshis-original-vision-blockchain-bitcoin/ Timechain is Satoshi's Original Vision for Blockchain and Bitcoin, Crypto Insider], by Vlad Costea</ref> Only~~ at a later point the word ''blockchain'' became in widespread use, but mostly by promoters of [[altcoin]]s and consulting agencies marketing their services to big corporations and governments.		[[Satoshi]] actually used the term time chain only at a later point the word ''blockchain'' became in widespread use, but mostly by promoters of [[altcoin]]s and consulting agencies marketing their services to big corporations and governments.

	== Blockchain nonsense ==		== Blockchain nonsense ==
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	==See Also==		==See Also==
	*[http://bitcoinproperly.org/ The real value of bitcoin and crypto currency technology - The Blockchain explained]

	* [https://bitupper.com/en/explorer/bitcoin Bitupper Explorer] - Clean and fast web-based Bitcoin blockchain explorer
	* [https://bitcoinchain.com BitcoinChain.com] - Bitcoin Live Platform that provides Block Explorer Service
	* [[BlockChain.info]] - Utility site and [[EWallet]] provider of similar name		* [[BlockChain.info]] - Utility site and [[EWallet]] provider of similar name
	* [https://tokenview.io Tokenview] - A Web based Blockchain Explorer		* [https://tokenview.io Tokenview] - A Web based Blockchain Explorer
	* [[BlockTrail.com]] - Advanced API and Block Explorer for Bitcoin		* [[BlockTrail.com]] - Advanced API and Block Explorer for Bitcoin
	* [[Coinprism.info]] - Web based blockchain explorer for bitcoin and colored coin		* [[Coinprism.info]] - Web based blockchain explorer for bitcoin and colored coin
	* [[Biteasy\|Biteasy.com]] - Web based blockchain explorer
	* [http://www.blockr.io Blockr.io] - Web based blockchain explorer
	* [https://bchain.info bchain.info] - Block Explorer for Bitcoin
	[[ru:цепочка блоков]]		[[ru:цепочка блоков]]

Tokenview: add https://tokenview.io into blockchain explorer list

2024-01-30T05:39:21Z

add https://tokenview.io into blockchain explorer list

← Older revision		Revision as of 05:39, 30 January 2024
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	* [https://bitcoinchain.com BitcoinChain.com] - Bitcoin Live Platform that provides Block Explorer Service		* [https://bitcoinchain.com BitcoinChain.com] - Bitcoin Live Platform that provides Block Explorer Service
	* [[BlockChain.info]] - Utility site and [[EWallet]] provider of similar name		* [[BlockChain.info]] - Utility site and [[EWallet]] provider of similar name
			* [https://tokenview.io Tokenview] - A Web based Blockchain Explorer
	* [[BlockTrail.com]] - Advanced API and Block Explorer for Bitcoin		* [[BlockTrail.com]] - Advanced API and Block Explorer for Bitcoin
	* [[Coinprism.info]] - Web based blockchain explorer for bitcoin and colored coin		* [[Coinprism.info]] - Web based blockchain explorer for bitcoin and colored coin

Tris T7: /* Time chain */ edit ref

2022-04-08T16:25:34Z

Time chain: edit ref

← Older revision		Revision as of 16:25, 8 April 2022
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	== Time chain ==		== Time chain ==

	[[Satoshi]] actually used the term time chain <ref>[https://cryptoinsider.media/timechain-satoshis-original-vision-blockchain-bitcoin/ Timechain is Satoshi's Original Vision for Blockchain and Bitcoin, Crypto Insider], by Vlad Costea</ref>. Only at a later point the word ''blockchain'' became in widespread use, but mostly by promoters of [[altcoin]]s and consulting agencies marketing their services to big corporations and governments.		[[Satoshi]] actually used the term time chain.<ref>[https://cryptoinsider.media/timechain-satoshis-original-vision-blockchain-bitcoin/ Timechain is Satoshi's Original Vision for Blockchain and Bitcoin, Crypto Insider], by Vlad Costea</ref> Only at a later point the word ''blockchain'' became in widespread use, but mostly by promoters of [[altcoin]]s and consulting agencies marketing their services to big corporations and governments.

	== Blockchain nonsense ==		== Blockchain nonsense ==

Furunodo at 10:57, 26 June 2020

2020-06-26T10:57:54Z

← Older revision		Revision as of 10:57, 26 June 2020
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	== Blockchain nonsense ==		== Blockchain nonsense ==

	Blockchain is touted as a magical fairy dust solution that you can sprinkle over a problem and end up with an amazing solution. ICOs have perfected this art (often combining it with other buzz words like IoT and AI) and raised billions of dollars to deliver virtually nothing. If someone comes to you talking about a blockchain project: run if you don't know them. If they're a friend or family, explain to them that blockchain without strong [[proof of work]] ~~is just nonsense~~. <!-- feel free to rewrite this, just wanted to put something here to work with -->		Blockchain is touted as a magical fairy dust solution that you can sprinkle over a problem and end up with an amazing solution. ICOs have perfected this art (often combining it with other buzz words like IoT and AI) and raised billions of dollars to deliver virtually nothing. If someone comes to you talking about a blockchain project: run if you don't know them. If they're a friend or family, explain to them that it's nonsense to use a blockchain without strong [[proof of work]] and an adequately decentralized network of nodes. <!-- feel free to rewrite this, just wanted to put something here to work with -->

Furunodo: some less technical stuff, == Time chain == and blockchain nonsense

2020-06-26T10:54:38Z

some less technical stuff, == Time chain == and blockchain nonsense

← Older revision		Revision as of 10:54, 26 June 2020
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	The block chain is broadcast to all nodes on the networking using a flood protocol: see [[Block chain download]].		The block chain is broadcast to all nodes on the networking using a flood protocol: see [[Block chain download]].

			== Time chain ==

			[[Satoshi]] actually used the term time chain <ref>[https://cryptoinsider.media/timechain-satoshis-original-vision-blockchain-bitcoin/ Timechain is Satoshi's Original Vision for Blockchain and Bitcoin, Crypto Insider], by Vlad Costea</ref>. Only at a later point the word ''blockchain'' became in widespread use, but mostly by promoters of [[altcoin]]s and consulting agencies marketing their services to big corporations and governments.

			== Blockchain nonsense ==

			Blockchain is touted as a magical fairy dust solution that you can sprinkle over a problem and end up with an amazing solution. ICOs have perfected this art (often combining it with other buzz words like IoT and AI) and raised billions of dollars to deliver virtually nothing. If someone comes to you talking about a blockchain project: run if you don't know them. If they're a friend or family, explain to them that blockchain without strong [[proof of work]] is just nonsense. <!-- feel free to rewrite this, just wanted to put something here to work with -->


	[[Category:Technical]]		[[Category:Technical]]

Muxacin: /* See Also */

2018-10-28T18:01:22Z

Muxacin: /* See Also */

2018-10-28T17:59:03Z

Muxacin: /* See Also */

2018-10-28T17:58:14Z

Belcher: 'double spending' -> 'irreversible transactions'

2017-07-09T19:28:24Z

'double spending' -> 'irreversible transactions'

← Older revision		Revision as of 19:28, 9 July 2017
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	A '''block chain''' is a transaction database shared by all [[Node\|nodes]] participating in a system based on the Bitcoin protocol. A full copy of a currency's block chain contains every [[transaction]] ever executed in the currency. With this information, one can find out how much value belonged to each [[address]] at any point in history.		A '''block chain''' is a transaction database shared by all [[Node\|nodes]] participating in a system based on the Bitcoin protocol. A full copy of a currency's block chain contains every [[transaction]] ever executed in the currency. With this information, one can find out how much value belonged to each [[address]] at any point in history.

	Every [[Blocks\|block]] contains a [[hash]] of the previous block. This has the effect of creating a chain of blocks from the [[genesis block]] to the current block. Each block is guaranteed to come after the previous block chronologically because the previous block's hash would otherwise not be known. Each block is also computationally impractical to modify once it has been in the chain for a while because every block after it would also have to be regenerated. These properties are what make [[~~double-spending~~]] ~~of bitcoins very difficult~~. The block chain is the main innovation of Bitcoin.		Every [[Blocks\|block]] contains a [[hash]] of the previous block. This has the effect of creating a chain of blocks from the [[genesis block]] to the current block. Each block is guaranteed to come after the previous block chronologically because the previous block's hash would otherwise not be known. Each block is also computationally impractical to modify once it has been in the chain for a while because every block after it would also have to be regenerated. These properties are what make bitcoins transactions [[Irreversible Transactions\|irreversible]]. The block chain is the main innovation of Bitcoin.

	Honest generators only build onto a block (by referencing it in blocks they create) if it is the latest block in the longest valid chain. "Length" is calculated as total combined difficulty of that chain, not number of blocks, though this distinction is only important in the context of a few potential attacks. A chain is valid if all of the blocks and transactions within it are valid, and only if it starts with the genesis block.		Honest generators only build onto a block (by referencing it in blocks they create) if it is the latest block in the longest valid chain. "Length" is calculated as total combined difficulty of that chain, not number of blocks, though this distinction is only important in the context of a few potential attacks. A chain is valid if all of the blocks and transactions within it are valid, and only if it starts with the genesis block.

← Older revision		Revision as of 18:01, 28 October 2018
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	*[http://bitcoinproperly.org/ The real value of bitcoin and crypto currency technology - The Blockchain explained]		*[http://bitcoinproperly.org/ The real value of bitcoin and crypto currency technology - The Blockchain explained]

	* [https://bitupper.com/ru/explorer/bitcoin Bitupper Explorer] - Clean and fast web-based Bitcoin blockchain explorer		* [https://bitupper.com/en/explorer/bitcoin Bitupper Explorer] - Clean and fast web-based Bitcoin blockchain explorer
	* [https://bitcoinchain.com BitcoinChain.com] - Bitcoin Live Platform that provides Block Explorer Service		* [https://bitcoinchain.com BitcoinChain.com] - Bitcoin Live Platform that provides Block Explorer Service
	* [[BlockChain.info]] - Utility site and [[EWallet]] provider of similar name		* [[BlockChain.info]] - Utility site and [[EWallet]] provider of similar name

← Older revision		Revision as of 17:59, 28 October 2018
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	*[http://bitcoinproperly.org/ The real value of bitcoin and crypto currency technology - The Blockchain explained]		*[http://bitcoinproperly.org/ The real value of bitcoin and crypto currency technology - The Blockchain explained]

	* [https://bitupper.com/ru/explorer/bitcoin Bitupper Explorer] - ~~The best Bitcoin blockchain explorer.~~ Clean and fast web explorer		* [https://bitupper.com/ru/explorer/bitcoin Bitupper Explorer] - Clean and fast web-based Bitcoin blockchain explorer
	* [https://bitcoinchain.com BitcoinChain.com] - Bitcoin Live Platform that provides Block Explorer Service		* [https://bitcoinchain.com BitcoinChain.com] - Bitcoin Live Platform that provides Block Explorer Service
	* [[BlockChain.info]] - Utility site and [[EWallet]] provider of similar name		* [[BlockChain.info]] - Utility site and [[EWallet]] provider of similar name

← Older revision		Revision as of 17:58, 28 October 2018
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	*[http://bitcoinproperly.org/ The real value of bitcoin and crypto currency technology - The Blockchain explained]		*[http://bitcoinproperly.org/ The real value of bitcoin and crypto currency technology - The Blockchain explained]

			* [https://bitupper.com/ru/explorer/bitcoin Bitupper Explorer] - The best Bitcoin blockchain explorer. Clean and fast web explorer
	* [https://bitcoinchain.com BitcoinChain.com] - Bitcoin Live Platform that provides Block Explorer Service		* [https://bitcoinchain.com BitcoinChain.com] - Bitcoin Live Platform that provides Block Explorer Service
	* [[BlockChain.info]] - Utility site and [[EWallet]] provider of similar name		* [[BlockChain.info]] - Utility site and [[EWallet]] provider of similar name