Check a pick's record

Every day at 00:15 (Madrid time) we record every pick published the day before in a fingerprint: a hash tree whose root is sealed in Bitcoin with OpenTimestamps. Anyone can check that a pick existed that day with that content, and whether it was changed or deleted later.

Recorded and unchanged

Recorded on 10/16/2026 at 09:53 PM, included in the fingerprint of 10/16/2026.

Pick: #1015308
Tipster: Urko (@Urkoun)
Event: Leganés - Córdoba
Selection: Más de 0,5 goles · @1.6 · stake 1
Fingerprint of 10/16/2026: a10498f0 44f13ced 74c61e6f e714404e abb5bffa d17170cf 3e01b819 7591e6e5
Pick leaf: 3a9d0612 06cdeb81 f6b51d5d 3271842b bd86f54d e9cf6167 cd92ec81 38680a68Position 514 of 585
Bitcoin seal: Anchored in Bitcoin block 971775. Download the .ots

Inclusion proof (8 steps)

1. left 801abb9d7ca9adf64a8ad4d3676c36292a12c5639645fd24d2b3c537c470cfbd
2. right bff756af62ab229e6a3de5234f53c502cf93030228ff777b1dc0edbf2ba593b4
3. right cf1b6d04c7a5489d526b885909e4a89cbed863971ca53a5d0a9a86724f5a5519
4. right f5dad28c245530c613a7f0759093fd3be532309db5c3af6d45f79e0e0e5643c4
5. right 279ede1ae3a9f1781cc9fb5403c536263ad6f01377a9991cc5d07ca01d763f9e
6. right 0cd712d28cb0d1ca9bb259fbbccc8a3e48bb6aa10d1af1e73ba3bd60696a6840
7. right 4acdf1ff79bd98e15064be338591fcafa32a3673445045c71b642fbbf655b8c0
8. left 2e280c2039af2eb917af6c2876b513c26d2a485e41a82eaddc21fab88bfa98ed

Recorded content:

["tipsterland-huella-pick",1,1015308,24943,"2026-10-16T19:53:58Z","Leganés - Córdoba","2026-10-16T19:53:58Z","Más de 0,5 goles","1.6","1"]

How to check without trusting us: the leaf is SHA-256(0x00 + content) and each step SHA-256(0x01 + left + right). If the path reaches the root and the .ots verifies with the official OpenTimestamps client (ots verify), the pick was recorded that day. This proves when it was published and that it wasn't touched; it says nothing about whether the pick is good.