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 11/13/2026 at 11:56 PM, included in the fingerprint of 11/13/2026.

Pick: #1031080
Tipster: Pdeldom (@pdeldom)
Event: Ciclocross
Selection: Ganador menos de 10 segundos · @1.71 · stake 1
Fingerprint of 11/13/2026: b943179b 9698be9e 6489f1da adf47cd5 29adc3ca 0031daf9 eafd5261 80cd905c
Pick leaf: bb614509 c6cec4c0 cd912491 73b4817a 2aff2f87 93aeafa4 34d0d2c1 f9cf806ePosition 492 of 493
Bitcoin seal: Sent to OpenTimestamps on 11/14/2026, 12:19 AM; Bitcoin confirmation takes a few hours. Download the .ots

Inclusion proof (8 steps)

1. left f1faf70d28eb708f699c2a19d1c76e6d7835a1f58e879b46bef5e6b35398bc7f
2. left dfc38012b342d60dc069d934b959c64d07a06091d0b731b36d4c8fb5239807f3
3. right ddbdf9a2f249f160bd8ffa5e7bac3ddb5f68ae01b7699ca80e0ee535bf63c7fa
4. left afd22c6393aea404b7a776cb6d89f418d5051f8f5ade13e5c9f8bb992233c346
5. left e64b1f83e46007af4385f9f43cc12a6c7ef123769cf3054f042ef78db69a99d1
6. left 9d179cea6a3958db30c82b8e143543d7f1c08e5fdeb1b23abb5c9912dd06f718
7. left 3525ca9e8cc612b5207c47c1e1522d82cd484154f75d1decafb62e97da983837
8. left 7f69caf7316f15eae27912feaf322aa0b4d58ccbf6c789034ac9cb770511cf3d

Recorded content:

["tipsterland-huella-pick",1,1031080,22620,"2026-11-13T22:56:30Z","Ciclocross","2026-11-14T14:10:00Z","Ganador menos de 10 segundos","1.71","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.