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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 |
|---|---|---|---|---|---|
| file.txt | text/plain | 855 B | 955,499 | c://1a1420a6…44f56087 | 054e9a6b…e5b3fbb8 |
| untitled | text/markdown | 110 B | 955,499 | c://36ac23fc…886e4281 | 9f8718f1…e4e25610 |
| untitled | text/markdown | 693 B | 955,499 | c://60d36990…6003436d | eb537e77…8a650ab8 |
| untitled | text/markdown | 22 B | 955,498 | c://3fc67de2…08458410 | 15c6b0a6…be16f9b2 |
| file.txt | text/plain | 3,792 B | 955,498 | c://af5e5545…707c7c94 | 0abe5e59…fbe1a0bb |
| file.txt | text/plain | 268 B | 955,494 | c://aadacf30…2fcec230 | a34c8d0c…b16ed1db |
| file.jpeg | image/jpeg | 251,605 B | 955,494 | c://a11c4ba3…4bd3b69e | c73a75fc…3b894d30 |
| untitled | text/markdown | 36 B | 955,494 | c://222a3b2b…38ce2c5b | 22f3f387…00bdebc7 |
| file.txt | text/plain | 137 B | 955,494 | c://b544fc9c…ee69706f | f02152b6…55255638 |
| No B:// file could be read from this transaction. | 955,494 | 4a0dbb0e…2702a49a | |||
| untitled | text/markdown | 7 B | 955,494 | c://b75e366f…7cfc2ea2 | 81d8a570…1f0d9f36 |
| untitled | text/markdown | 741 B | 955,494 | c://78c9b958…91fd227b | 1a9ced35…2402ded5 |
| file.txt | text/plain | 3,792 B | 955,494 | c://af5e5545…707c7c94 | 7e32a591…5b8fcd7b |
| No B:// file could be read from this transaction. | 955,494 | d6755e19…2f99c55f | |||
| untitled | application/json | 6,277 B | 955,494 | c://a1b1f365…4d137a67 | 3d4db9ef…7e2d9b71 |
| untitled | application/json | 6,268 B | 955,495 | c://efa190c5…a8372bd5 | 4c3d2095…0f5d8e14 |
| file.txt | text/plain | 859 B | 955,493 | c://6f56d8ff…35b30477 | e3832425…6050ed88 |
| untitled | text/markdown | 189 B | 955,493 | c://d5af5917…17a537e6 | 2850630f…281451dd |
| untitled | text/markdown | 266 B | 955,491 | c://de793ce3…eaef0eb0 | a37b5242…d3402bc1 |
| untitled | text/markdown | 13 B | 955,491 | c://80dfa2f7…e45c939b | 19aec085…490bd75a |
| untitled | text/markdown | 8 B | 955,491 | c://d53da15f…8aeacf6b | 0a307f2e…d031c30c |
| untitled | text/markdown | 88 B | 955,491 | c://5ede48f1…5bae5f8f | 82c5a54c…4a06671e |
| file.txt | text/plain | 438 B | 955,490 | c://147b5831…1ca7da2d | f2fdbe72…4496b8d6 |
| untitled | text/markdown | 51 B | 955,490 | c://04c99ce9…727bee6d | 0fc14957…3a44b2f3 |
| untitled | text/markdown | 754 B | 955,490 | c://74cbfd4e…aae38cfa | 4e067ccc…33be872d |
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 .