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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 | 80,509 B | 956,793 | c://001d1da0…53a78a4e | 4bda3d17…8255f139 |
| file.png | image/png | 253,266 B | 956,793 | c://b7d5a193…8e1f98c2 | 1ca86d43…9f167515 |
| file.txt | text/plain | 85,134 B | 956,793 | c://642769a4…e8477187 | 2dc0efc2…11ef8924 |
| untitled | text/markdown | 62 B | 956,793 | c://c2b34860…f3556d18 | 5719320f…953b6c47 |
| untitled | text/markdown | 114 B | 956,793 | c://a467af7e…146000c9 | 52061771…e9af070d |
| untitled | text/markdown | 49 B | 956,793 | c://f3344afc…031f9f69 | 534dbc30…05876514 |
| untitled | text/markdown | 24 B | 956,793 | c://2071b2f6…d508c130 | 9e0f18fd…dca84eab |
| untitled | text/markdown | 136 B | 956,793 | c://0683e868…e2c2ad71 | 8457d32e…36427076 |
| untitled | text/markdown | 21 B | 956,793 | c://1ea39405…83a1c6b6 | ff5ac7df…09835800 |
| untitled | text/markdown | 53 B | 956,793 | c://f531ce77…b8a3fb30 | 833220b5…17e7274d |
| untitled | text/markdown | 50 B | 956,793 | c://0d8ed9cc…6039b929 | 69d60ffe…1757352f |
| untitled | text/markdown | 8 B | 956,793 | c://d53da15f…8aeacf6b | 46cebfaa…f4f44632 |
| untitled | text/markdown | 135 B | 956,793 | c://64b1a278…0d873460 | cf3ae1ee…4e2992a6 |
| untitled | text/markdown | 296 B | 956,793 | c://feaf9ab7…eddd185c | 3a6542fb…ea4a5ad5 |
| untitled | text/markdown | 7 B | 956,793 | c://b75e366f…7cfc2ea2 | 02fba5ef…3027c9ff |
| untitled | text/markdown | 18 B | 956,793 | c://d1d124f1…f8b213fb | ab7fd88b…6503878d |
| file.txt | text/plain | 85,134 B | 956,793 | c://642769a4…e8477187 | 2722813a…d438b57d |
| untitled | text/markdown | 122 B | 956,793 | c://111065d4…cadd7f25 | 5f8ab595…3df0ec0f |
| untitled | text/markdown | 18 B | 956,793 | c://d1d124f1…f8b213fb | 8ed79408…b8ec22ea |
| untitled | text/markdown | 79 B | 956,794 | c://67f1536f…762f8c41 | 8991a7cd…b9efbaed |
| untitled | text/markdown | 276 B | 956,793 | c://37c0727d…6a513d09 | 720ec607…b600e26f |
| untitled | text/markdown | 7 B | 956,793 | c://b75e366f…7cfc2ea2 | 374ca4d7…b8264bd2 |
| untitled | text/markdown | 21 B | 956,794 | c://1ea39405…83a1c6b6 | 1087c2aa…e40894ac |
| untitled | text/markdown | 296 B | 956,794 | c://feaf9ab7…eddd185c | e598200d…92fba371 |
| file.png | image/png | 253,266 B | 956,793 | c://b7d5a193…8e1f98c2 | 14d8199b…776f1afe |
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 .