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 10/13/2026 at 10:52 PM, included in the fingerprint of 10/13/2026.

Pick: #1013604
Tipster: Magnus (@Magnus)
Event: Laurent Lasota - Martin Lorenc
Selection: Gana Laurent Lasota · @2 · stake 1
Fingerprint of 10/13/2026: 77513d56 4616eef4 baa5c499 e6542aac 55844484 651ecd11 68c8a07b d0950e7d
Pick leaf: 0c0efd81 5d254900 5272a5fc e649ab6d 4740e48f db46f742 bb181e51 ffc036cePosition 562 of 583
Bitcoin seal: Anchored in Bitcoin block 971315. Download the .ots

Inclusion proof (8 steps)

1. left 6c78c2b786bf2b1b1affe028266f6253debfb44785db36113a0201930748dddc
2. right d6ce7c2cc944cb08005e4885ef151a18e9d69d01ca8dfaa3afd7a2f7489bc8a2
3. right addf74f679ddc08fcc92286fb20198b4c38e8cbf9fe27d0122d05f58919e8d06
4. right 1c33dbd559e6ace5236a8e151db2340505e180481a5416c74765e8ca8cf8948b
5. left e4c61b01e5dd01e2f96add325618b38de03985e9a5c6cb531601cb069a5cf36a
6. left 6db44caf5c6131c3bbb94ae3b7baa92eb44f493e1218c46def587439b211fb3f
7. right 4a753ae87805c419f1b8e9c9eae3fd49bfd8beb818e315499554bc79a2bf8ddf
8. left f2f8e5ac51e85a9cdcd9bcc668cbd56f305906b20709ad37ac372e2a628ad591

Recorded content:

["tipsterland-huella-pick",1,1013604,26500,"2026-10-13T20:52:40Z","Laurent Lasota - Martin Lorenc","2026-10-14T09:45:00Z","Gana Laurent Lasota","2","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.