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 11/01/2026 at 08:53 PM, included in the fingerprint of 11/01/2026.

Pick: #1024898Paid
Tipster: Mich F1 (@MichF1Insider)
Event: Mexican Grand Prix (Hermanos Rodríguez)
Selection: Gabriel Bortoleto - Group 3 - Winner · @2.5 · stake 4
Fingerprint of 11/01/2026: 0e91c464 ebee28c7 02f18efc f5e2d131 5adbecde 194702f1 982164e1 9598f945
Pick leaf: b036e192 c5756c44 3167ba66 0f31fd46 e454b375 74113e6a 00b90e72 bb235509Position 640 of 707
Bitcoin seal: Anchored in Bitcoin block 974194. Download the .ots

Inclusion proof (9 steps)

1. left 3f61bc1ccaa4f9d73a0b1175aa68feb22e758001ab0e5b73146a3954651bf272
2. left 0bcce26c40a690eedd5c612af3b4ad558ee1e3b75fc109752e53556926812483
3. left f9385720f1710c30a06f9573ef586cff2defe2dddaee2a8809897131c41c9c45
4. left 0f680c454e1bb9344c706f0f8ff0b96d5f94cc99b67f8a05cb62e99e31cb7309
5. left 19a50bd57e16ae2186eaa3817ce4faf53b35a569b24da680ae41a5bca8bf5522
6. left fa953c5fcfa4c847bae98ea7ea644ba17635835c3847273977ef627ac3138243
7. left ffbe451b3cc50eafcb55110dc4b1a96b10f7c354464c2c092bf6882691b66a34
8. right ecb8c5c54b19b3cafdcb5861aa557417460d55fa756d00ed37a04a20035fd7c3
9. left f856b79f5a5813824f06de7c31330249c6e2eefb276abc5c0d1a7e7651a8e45a

Recorded content:

["tipsterland-huella-pick",1,1024898,24286,"2026-11-01T19:53:52Z","Mexican Grand Prix (Hermanos Rodríguez)","2026-11-01T20:00:00Z","sha256:948d35ebb35b1421b5e757bcad7df6f08fb7e38b8c307d41abede8236de3053b","2.5","4"]

Selection nonce: 269974c8e3ada0c44f531ceeea879de5

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.