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 10/31/2026 at 11:47 PM, included in the fingerprint of 10/31/2026.

Pick: #1024247
Tipster: Fran RR (@DrawLab)
Event: Orenburg - CSKA Moscú
Selection: Empate · @3.45 · stake 1
Fingerprint of 10/31/2026: 7483f84e abf8aa9a 7496e387 9ea0d396 c50a3aab dd36fbfe 75f148e6 8fd9d106
Pick leaf: 508dfa61 99493137 fcc3a6d0 759225ef c0a010e1 7808f20e 532205cf c3853b2cPosition 642 of 652
Bitcoin seal: Anchored in Bitcoin block 974039. Download the .ots

Inclusion proof (6 steps)

1. left c1289b93aca819902577d30937ff0f2fae4349b60dbc348c56fb32b20b3e9184
2. right 8f15e6f9b9bf675ccbd466d01f4d37586248a88b5207de05e40ae52978f01ad4
3. right 748f5e98832ccbdc392eb4a9303fb9fd802203f36e7941a85b8950184d35c5f9
4. right 083c6add3d6807507d5faa85c6a8278a1cb0d4c7c053ddd211fd4a9829a3643a
5. left 49d90e7204d05beef283b8fedb924dec7e5dbd9e8a7d3e904405f48ca8c4f91e
6. left 07a901204119132356813f0a234f56f016a6f3f880a15dafd5d8cf9d40fc1fce

Recorded content:

["tipsterland-huella-pick",1,1024247,24012,"2026-10-31T22:47:30Z","Orenburg - CSKA Moscú","2026-11-01T10:00:00Z","Empate","3.45","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.