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Files on Bitcoin
Every B:// file in the blocks Bitblocks stores, newest first. Each one is read from its transaction as this page loads.
B:// is the file protocol unwriter published in 2019: a file's bytes, media type and name in one transaction output.
A file's C:// address is the sha256 of its bytes, so every copy of the same file shares it.
Files open at
/b/<txid>
as untrusted content, with scripts switched off.
| File | Type | Size | Block | C:// address | Transaction |
|---|---|---|---|---|---|
| untitled | application/json | 6,259 B | 955,383 | c://26b40d2f…eb86f534 | cb4da4a1…ffe5d9b8 |
| file.txt | text/plain | 369 B | 955,382 | c://fcf95d2e…7c89241a | 9d1717a8…44bd8fbd |
| untitled | text/markdown | 189 B | 955,382 | c://7e2977a0…1ead42d2 | 35e99252…eaa1dbff |
| untitled | text/markdown | 121 B | 955,380 | c://8d10b1db…1938e537 | b329c6a1…4b4275b5 |
| file.jpeg | image/jpeg | 130,317 B | 955,381 | c://389f6b28…f17cdd01 | 5be8b1de…8badeac1 |
| No B:// file could be read from this transaction. | 955,381 | db896bd2…2d3f1704 | |||
| file.txt | text/plain | 746 B | 955,381 | c://05146adc…00fb6c7b | ccb6b8cf…e26ecf09 |
| untitled | text/markdown | 16 B | 955,381 | c://4874e998…f18b2b5c | d2a8be87…f23507a7 |
| untitled | text/markdown | 70 B | 955,380 | c://73f8b63c…169689c9 | f6bda9c7…e14a5f7b |
| untitled | text/markdown | 22 B | 955,381 | c://f2ec20d0…99fe2330 | a0ac60d2…a000bc3b |
| untitled | text/markdown | 251 B | 955,381 | c://1bc8cbba…d904cb37 | 5f800176…4e56fd87 |
| file.txt | text/plain | 27,881 B | 955,381 | c://d8106670…09bed2c9 | baf6cb3c…99dcec5d |
| file.png | image/png | 336,035 B | 955,381 | c://c75a4a3b…16c83893 | bb2308e1…70ec1261 |
| untitled | text/markdown | 58 B | 955,381 | c://45a1b42b…370e103b | b793568a…0df1d446 |
| file.txt | text/plain | 980 B | 955,381 | c://fd9dbda1…ecb190c9 | cb48feb8…47a32b7e |
| file.txt | text/plain | 1,613 B | 955,380 | c://db119f70…17e6e689 | 1e0179a5…776b875b |
| untitled | text/markdown | 43 B | 955,380 | c://5d48e90e…2c883828 | 4cada6fb…510978df |
| file.txt | text/plain | 980 B | 955,380 | c://fd9dbda1…ecb190c9 | eb19701b…c92dc2de |
| untitled | text/markdown | 155 B | 955,380 | c://7e532d91…84570381 | f248c36d…9ccb5c09 |
| file.txt | text/plain | 980 B | 955,380 | c://fd9dbda1…ecb190c9 | c7fd8fab…e36f18e9 |
| untitled | text/markdown | 48 B | 955,380 | c://46eea260…3a759df8 | 7e278660…28b8930f |
| untitled | text/markdown | 174 B | 955,380 | c://36e09c86…9ab80e9a | 2c42d4fb…8ed1dcfb |
| untitled | text/markdown | 174 B | 955,380 | c://36e09c86…9ab80e9a | 66d8681e…363360aa |
| file.txt | text/plain | 677 B | 955,378 | c://0397ec48…53bae835 | be3e546e…2402f674 |
| untitled | text/markdown | 257 B | 955,378 | c://6eb93ce5…c297a3ab | 9df947d5…a86d3b17 |
The list grows as the sync stores more blocks. B:// and C:// are unwriter's conventions; this is an independent reading of them from the chain. For a namespace's own files and routes, see the Bitcom registry .