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 11:01 PM, included in the fingerprint of 10/09/2026.

Pick: #1010906
Tipster: Pdeldom (@pdeldom)
Event: Il Lombardía 2026
Selection: Davide Piganzoli mejor que Mathys Rondel · @1.57 · stake 1
Fingerprint of 10/09/2026: 3b4117b3 ab495ffc 7c0bbdb1 e01bed5e 38b4fdda b3bb6529 152fa34a 28fd96b0
Pick leaf: 238dbe9a 01d8e12d 7af109b7 9db3aac5 33b388d9 9f2d1771 e763743d 65350865Position 530 of 560
Bitcoin seal: Anchored in Bitcoin block 970685. Download the .ots

Inclusion proof (7 steps)

1. left c6f262b63c203f3c128d9514f22f3397f83032abfae4c657c8026998b97eed1a
2. right 19998f6854534ae28fd7960b370b6c761dfd89fdcb12251c0563cfacd1adf1e3
3. right ff65297bf8d7e12a54ca74fea9028d774ac143c249c609e1a46d16e8dc24e998
4. right e0f3b7ac759d59ccc19289b15b013970417b2c0cf986a107b47a0129fdd8fc6b
5. left 0c9aabd4379bc21db7e59c6f2a069c877dd41438e4f460d99870e4705a842fb9
6. right 3c50bffe0c65ed36348488e53a26c6a685c60109b43de412247e79d174f92788
7. left 50e4429858c15c9261710f336031a39d2a00b6890605c762a13b74b5e897c2d1

Recorded content:

["tipsterland-huella-pick",1,1010906,22620,"2026-10-09T21:01:08Z","Il Lombardía 2026","2026-10-10T08:45:00Z","Davide Piganzoli mejor que Mathys Rondel","1.57","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.