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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 | 9,935 B | 957,648 | c://a0685d98…77ac4fbf | 6c5b0165…f1b16233 |
| untitled | text/markdown | 32 B | 957,648 | c://efed71d9…96498204 | 95f965e7…b37cbbf0 |
| file.txt | text/plain | 37,774 B | 957,648 | c://6c02d2e0…f4653ab2 | 10d93570…51bb7301 |
| untitled | text/markdown | 255 B | 957,648 | c://7bd8178f…1f03e08c | 9dba3a18…53f0cd81 |
| untitled | text/markdown | 12 B | 957,648 | c://6b05e6bf…6f068be4 | 87576350…e9c41b97 |
| untitled | text/markdown | 3 B | 957,648 | c://9279c116…da95f6cf | 73460986…6dc608dc |
| untitled | text/markdown | 3 B | 957,648 | c://9279c116…da95f6cf | e7390b00…db7e3d36 |
| untitled | text/markdown | 32 B | 957,648 | c://f748c815…6f097da4 | b16102c1…93468a12 |
| untitled | text/markdown | 85 B | 957,648 | c://a486e06d…3866381c | c6a759c8…4a111a44 |
| untitled | text/markdown | 77 B | 957,648 | c://f3aac648…8a68a381 | 7421261b…63394c2d |
| untitled | text/markdown | 165 B | 957,648 | c://a2fa24bd…d029fd63 | 879ab7d3…df7adb09 |
| untitled | text/markdown | 107 B | 957,648 | c://799a0bf6…727b8eaf | 36476d99…4287fba7 |
| untitled | text/markdown | 216 B | 957,648 | c://aa1d2774…9c3c9123 | d42a3457…74f78910 |
| untitled | text/markdown | 101 B | 957,648 | c://2b66d101…5fcefcae | 06d601f2…cf03b158 |
| untitled | text/markdown | 191 B | 957,648 | c://2347ad97…53095894 | 83e12ff2…f1b1cc0b |
| untitled | text/markdown | 120 B | 957,648 | c://ae67d191…18501a37 | 668655c4…b1e3316f |
| untitled | text/markdown | 107 B | 957,648 | c://81422c9d…0fe34504 | f1fea832…5c293679 |
| untitled | text/markdown | 104 B | 957,648 | c://192cf8f7…8d5e3f44 | b7cdf8b2…f5af35a5 |
| file.txt | text/plain | 37,774 B | 957,648 | c://6c02d2e0…f4653ab2 | 1e1aecb4…464422f7 |
| untitled | text/markdown | 32 B | 957,648 | c://f748c815…6f097da4 | 4c469740…0ca6902e |
| untitled | text/markdown | 9 B | 957,648 | c://298d5ef0…27ff8950 | ec76af61…3f156481 |
| untitled | text/markdown | 9 B | 957,648 | c://a903c130…dea65872 | e8084540…14d77b40 |
| untitled | text/markdown | 88 B | 957,648 | c://1b613985…ad3cbff8 | ed1cc533…c587e2e3 |
| untitled | text/markdown | 11 B | 957,648 | c://cb904e90…348bba9f | 03798fc1…1109c929 |
| untitled | text/markdown | 191 B | 957,648 | c://0c6eedf2…3b80dca8 | dca6e1de…1995bfb3 |
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 .