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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 | text/markdown | 42 B | 955,252 | c://5fd70338…d98d1f5a | 21f42cd9…2bb12905 |
| file.txt | text/plain | 1,613 B | 955,252 | c://1325eebc…a4ba31ec | 09251ec3…bf6168d9 |
| untitled | text/markdown | 43 B | 955,252 | c://4d9cc8e0…486c704e | 95f5e694…be30ffd6 |
| file.txt | text/plain | 153 B | 955,251 | c://21adbd40…13900e2c | 7c82d21e…bef93672 |
| untitled | text/markdown | 51 B | 955,251 | c://dd3af5cd…42669d51 | 696798da…a4e4f5c1 |
| untitled | text/markdown | 329 B | 955,251 | c://de45729e…fa633bcf | 5db767d6…d17e476f |
| file.png | image/png | 505,483 B | 955,250 | c://8e8f5dd9…21580bcb | a58fac5c…10e99117 |
| file.jpeg | image/jpeg | 554,722 B | 955,250 | c://76485fb1…b4bbe580 | 424c34b3…41a978df |
| file.txt | text/plain | 4,023 B | 955,250 | c://f0858a65…43aa8cce | a23bab43…ae70dafe |
| file.jpeg | image/jpeg | 71,072 B | 955,250 | c://36a1f235…b709ecac | a8faf037…30bf6a70 |
| untitled | text/markdown | 44 B | 955,250 | c://980259d4…3bec4475 | e0e623ca…8e2e9a5d |
| untitled | text/markdown | 51 B | 955,250 | c://e53c97ab…83224264 | fe907359…2a43570c |
| file.txt | text/plain | 4,023 B | 955,250 | c://f0858a65…43aa8cce | a9d5cb47…a051de74 |
| file.jpeg | image/jpeg | 554,722 B | 955,250 | c://76485fb1…b4bbe580 | c70b3c7c…8886cbfd |
| file.png | image/png | 505,483 B | 955,250 | c://8e8f5dd9…21580bcb | 7a7ca060…fb111ddf |
| No B:// file could be read from this transaction. | 955,250 | dfe73efe…dca80faf | |||
| untitled | text/markdown | 58 B | 955,248 | c://d36f0636…0c3d9550 | 51102a2b…7b9a53bf |
| file.txt | text/plain | 479 B | 955,248 | c://bc33a8b6…c15bdc9b | fe38a035…53810372 |
| file.txt | text/plain | 74 B | 955,248 | c://9e5986d0…3713c7d5 | 8d7c20de…9756fdc0 |
| file.txt | text/plain | 196 B | 955,248 | c://f2140ce3…4e242950 | 1f178416…a6697c80 |
| untitled | text/markdown | 13 B | 955,248 | c://807a4978…015d0293 | 764cf208…185470a5 |
| file.txt | text/plain | 196 B | 955,248 | c://f2140ce3…4e242950 | 12bf079c…d82bb76d |
| untitled | text/markdown | 54 B | 955,248 | c://94ffb2e4…acf9d489 | 611a9eaa…ac531946 |
| untitled | text/markdown | 6 B | 955,248 | c://cd36e2f4…d80ba324 | cc8ad117…54c68f5e |
| untitled | text/markdown | 115 B | 955,248 | c://d8429c59…1f51f0e5 | bac5af5e…f019acc4 |
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 .