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 11/02/2026 at 06:03 PM, included in the fingerprint of 11/02/2026.

Pick: #1025233
Tipster: Leonardo (@Leobolso)
Event: Rockets vs celtics
Selection: Rockets -4.5 · @1.88 · stake 0.5
Fingerprint of 11/02/2026: c17d7784 ab8a1686 83707fc8 fe25ef6b cb24f4df 38d48563 871c7fb8 04cef3de
Pick leaf: 3b28cf37 e10d6e08 31214ac1 d4cbbc00 a7c636b4 7bfbccc3 909a8475 5b6f3974Position 268 of 433
Bitcoin seal: Sent to OpenTimestamps on 11/03/2026, 12:18 AM; Bitcoin confirmation takes a few hours. Download the .ots

Inclusion proof (9 steps)

1. left 860da7c3a8b8749e016510e3cf6067f6026e13c362ef05582af10e38559e4845
2. left c3fc88d71e2f44505f4bde710cecd1c7a8957e8bfb004565736ee40a89e05395
3. right 5427e6f2b85581eb83d82f9595effb0440ff15c45acf07ce9e7da9384362f782
4. left 00118a45530600c6c0baa06960ddfc6d08725970485a1d01ef1b69cbf69ccb9e
5. right ad84557151541de094b82562cdad57b157927db9d3d91e05021087dc5d1860a8
6. right 90264e1cd0c974d47b72a060603a741e6d67ca65141187cd02c2157a7a373614
7. right cb747bf3571bbf37332362b271371f54e4ae56361298fc0e8329d91366470982
8. right 62869b2bcb51b80e68a767aec83b7356b35f86ce2099e5fd1246aa5d05b7417a
9. left cfc4389e80f629082bbdf136ab154122814babbb6839b26ce39ef43f4c8ad67a

Recorded content:

["tipsterland-huella-pick",1,1025233,23769,"2026-11-02T17:03:57Z","Rockets vs celtics","2026-11-03T01:30:00Z","Rockets -4.5","1.88","0.5"]

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.