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 10/09/2026 at 11:15 PM, included in the fingerprint of 10/09/2026.

Pick: #1010915
Tipster: Pdeldom (@pdeldom)
Event: Il Lombardía 2026
Selection: Top 3 Remco Evenepoel · @1.75 · stake 1
Fingerprint of 10/09/2026: 3b4117b3 ab495ffc 7c0bbdb1 e01bed5e 38b4fdda b3bb6529 152fa34a 28fd96b0
Pick leaf: 04cb01a7 03f3a71c d2eeac2e 160e0afc d84c2109 4733ec68 f8b5bb05 47499941Position 539 of 560
Bitcoin seal: Anchored in Bitcoin block 970685. Download the .ots

Inclusion proof (7 steps)

1. right 25d7c42d313390519d90b5a4fe3b90b944d9177c27784a47267be49ba8bd3a65
2. left 6c7c18a1bafc4c23ad16fce825ffb41cdd16c91659419b3129a93608e936ad18
3. right 0a103854da72a39e0a27f6ce773b9f699370f1211a3f8f1d2e0e5c2a6d597e61
4. left a102085d71b30dc3338e89c92d3342de7eeadf727c480c69e318be98d3bf79ab
5. left 0c9aabd4379bc21db7e59c6f2a069c877dd41438e4f460d99870e4705a842fb9
6. right 3c50bffe0c65ed36348488e53a26c6a685c60109b43de412247e79d174f92788
7. left 50e4429858c15c9261710f336031a39d2a00b6890605c762a13b74b5e897c2d1

Recorded content:

["tipsterland-huella-pick",1,1010915,22620,"2026-10-09T21:15:39Z","Il Lombardía 2026","2026-10-10T08:45:00Z","Top 3 Remco Evenepoel","1.75","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.