https://bitcoin.stackexchange.com/questions/11542/by-byte-size-and-number-of-inputs-outputs-what-are-the-largest-transactions-in/105384#105384

* bb41a757f405890fb0f5856228e23b715702d714d59bf2b1feb70d8b2b4e3e08 999,657 bytes. Joins a bunch of tiny inputs into a single output
* 623463a2a8a949e0590ffe6b2fd3e4e1028b2b99c747e82e899da4485eb0b6be and 5143cf232576ae53e8991ca389334563f14ea7a7c507a3e081fbef2538c84f6e both have 3,075 outputs of 1 satoshi each and a single input. We were not able to identify any meaningful data in it, `file` just says `data`, and there aren't long ASCII strings. However, the outputs were unspent as of 2021, which suggests that they might actually be data.

Analysis of some of them follows.

* dd9f6bbf80ab36b722ca95d93268667a3ea6938288e0d4cf0e7d2e28a7a91ab3 has 13107 with payload 256KB in size, but some of them at least have been spent: https://www.blockchain.com/btc/tx/dd9f6bbf80ab36b722ca95d93268667a3ea6938288e0d4cf0e7d2e28a7a91ab3 therefore it's not data. `file` says their payload is a DOS executable, but it must be a coincidence


Cool data embedded in the bitcoin blockchain/the largest transactions in the bitcoin blockchain

ID: cool-data-embedded-in-the-bitcoin-blockchain/the-largest-transactions-in-the-bitcoin-blockchain