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 11:55 PM, included in the fingerprint of 10/16/2026.

Pick: #1015372Paid
Tipster: Cultu_ (@Cultu_)
Event: Fútbol
Selection: Más de 4.75 goles · @1.95 · stake 2
Fingerprint of 10/16/2026: a10498f0 44f13ced 74c61e6f e714404e abb5bffa d17170cf 3e01b819 7591e6e5
Pick leaf: c7a47a44 bcc60ca7 7a95d703 c4303cb2 59a9486d 434e84fe f2230bb9 ea1b77b9Position 577 of 585
Bitcoin seal: Anchored in Bitcoin block 971775. Download the .ots

Inclusion proof (6 steps)

1. right dee67f42b7b013a58ca1acde8203a4a08397b59261ebfeed3bc63ae45d6364f3
2. right 0be453903a7fc881e06707b4f705640a12bfbe1ea5143af04dc23d11fed64e33
3. right 9a08ac0bfbe20a1bcdbf96b9bb6db0bd289377bb69ef7ced0e289b051dd4e2e5
4. right 1d5f7d06a6612bcfb28294f6bade174d62f11aa9275dd2afc23bc55d2375ef58
5. left 72eb5eb0c11593bdad7c8bfb20af806c2f29f5409ee65a0a4da1de31610f9d0b
6. left 2e280c2039af2eb917af6c2876b513c26d2a485e41a82eaddc21fab88bfa98ed

Recorded content:

["tipsterland-huella-pick",1,1015372,24964,"2026-10-16T21:55:26Z","Fútbol","2026-10-17T09:30:00Z","sha256:711e85cdadd0ccce33e91d12ae00b5b9e062e02c04d84cea3cc6a8e94ca5f25c","1.95","2"]

Selection nonce: 3e348f065e5daf8e7482a124dbc1427f

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.