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 10/28/2026 at 09:02 PM, included in the fingerprint of 10/28/2026.

Pick: #1022481
Tipster: WailerPicks (@WailerPicks)
Event: Adam vs Marcin
Selection: Más 68,5 puntos · @1.76 · stake 1
Fingerprint of 10/28/2026: e1c57005 23d76239 c26060b1 7607fe56 cd83284b e4cf2894 2cd6987b 397b12a1
Pick leaf: f0c7e093 8d6fe928 4e39cc16 07f53fec 600418cb 5bb183d4 41262a7c 9dcb5259Position 368 of 447
Bitcoin seal: Anchored in Bitcoin block 973609. Download the .ots

Inclusion proof (9 steps)

1. left dd60ec38c673eaa092366477b910281ec090fe0069a2ef1f1484ebedf97c921a
2. left f3bfab9a7651e0e0201583b77a687d333cef34acda2901e1f5c014caecc13a50
3. left 4d2bec6669379a3b51fb9b4f3d9a2884c168b9fcb73c2a4eba2bc55cfbf83408
4. left 4e16c049e062b340040d77fb278ac32115895e2f3a3c4536427722f248934117
5. right 437f266787d139af5fe50f6414c070697d0d0586cdd7074440f641b7445a4225
6. left d011b29a7effb796c99363f4526a7afd4ce5327839fe704b16a44519e7012dde
7. left 43e07cc29373fb99d358dec1a58d27fc583c0bbe34c5726910fcfc7be0c22df8
8. right 141a4abf8b13727f283787e3494765ad07363ca805ca5b5cbf6a473f1bc14a66
9. left 003770e831db596e0f4c79627ceddb7c6c2627c9be8b2313c48b660de732a548

Recorded content:

["tipsterland-huella-pick",1,1022481,26756,"2026-10-28T20:02:45Z","Adam vs Marcin","2026-10-28T20:10:00Z","Más 68,5 puntos","1.76","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.