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 10/10/2026 at 09:58 PM, included in the fingerprint of 10/10/2026.

Pick: #1011597Paid
Tipster: Gonzamotor (@Dani_MotoGP)
Event: Carrera indonesiab
Selection: Hidden: this is an unsettled paid pick. The fingerprint stores its hash; it can be checked once it settles.
Fingerprint of 10/10/2026: 79d35bad 38e0a402 eb08b690 a8d18b11 84ea9322 df648b95 679232e0 f137ffcd
Pick leaf: ece7b5ac ba6734f0 c7bdc1f6 15ec16ab 8eeec851 5f2425cb 7898ae7d 53640b9fPosition 658 of 737
Bitcoin seal: Sent to OpenTimestamps on 10/11/2026, 12:19 AM; Bitcoin confirmation takes a few hours. Download the .ots

Inclusion proof (9 steps)

1. left 1eec0ff77aacc5123999e2d1aea46f4941c5d4d22d46d9c4295e50cdd7714c61
2. right acbc078a9411d174bf1084250ea529752719b4b6e5bbc627e97349d078171ccc
3. right da0f7aa5da356776b769f567ffaf37112c13847d09874eb6232e8f7aa2e2cf41
4. right ddf7accc997af44a31544298a6e6ea846b3b452220e074195e74d3361d029187
5. left 52340b3fb7b571c51f1c6e2e4a0bce5ce8a85a56221ac15b023e1dffdcc9d8ce
6. right c140281c1baecb533b826e3582f37d7c92b203079c2f23993a329d9b75d6bf10
7. right 8f8f3f00c8090fdb9087dd9bcfaedbfff8b0f82bf1ac77c5b14e31d9a93f2f5a
8. left 25239823ae8f84ae7b3f64fdf684c1031d2ac8e671f5d82502cd9c6378262fa2
9. left fc1c00aea746c01615b4a344de30f8f15083bb4c6dccb9eb41e359d726d06d4d

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.