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 10/16/2026 at 10:26 PM, included in the fingerprint of 10/16/2026.

Pick: #1015333
Tipster: Pdeldom (@pdeldom)
Event: Etapa 5 Tour de Guangxi
Selection: Cees Bol mejor que Juan Sebastián Molano · @1.83 · stake 1
Fingerprint of 10/16/2026: a10498f0 44f13ced 74c61e6f e714404e abb5bffa d17170cf 3e01b819 7591e6e5
Pick leaf: c3cdbbc0 47dd7cf6 35f265a0 082331ba ddd2c589 e26e84ee eac04b86 84736c45Position 539 of 585
Bitcoin seal: Anchored in Bitcoin block 971775. Download the .ots

Inclusion proof (8 steps)

1. right c79cff68dcea4d1713ad1f03a77c77feb990c0a549772b44492ca250cc95aa57
2. left c97de52dba27d7ab14fab293827979c087b68c3f255213cf0be7675bb2a75aba
3. right 40cd3d128300b683c71c9a4df8817168548ed4e68fd19631c9a343c314d2b30b
4. left 14b3fefadb4e2dec7e1a8025f817c85938f0355e4f1bf6d55d63371a5e14d611
5. left e44cbfe9c43fab52fbf020f8b988ff1f17f353f9fe44fb7ae5ecc9ea858c3924
6. right 0cd712d28cb0d1ca9bb259fbbccc8a3e48bb6aa10d1af1e73ba3bd60696a6840
7. right 4acdf1ff79bd98e15064be338591fcafa32a3673445045c71b642fbbf655b8c0
8. left 2e280c2039af2eb917af6c2876b513c26d2a485e41a82eaddc21fab88bfa98ed

Recorded content:

["tipsterland-huella-pick",1,1015333,22620,"2026-10-16T20:26:17Z","Etapa 5 Tour de Guangxi","2026-10-17T02:20:00Z","Cees Bol mejor que Juan Sebastián Molano","1.83","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.