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 10:52 AM, included in the fingerprint of 10/16/2026.

Pick: #1014949Paid
Tipster: A Pie de Sofa (@APiedeSofa)
Event: Fútbol
Selection: Hertha Berlín · @2.2 · stake 2
Fingerprint of 10/16/2026: a10498f0 44f13ced 74c61e6f e714404e abb5bffa d17170cf 3e01b819 7591e6e5
Pick leaf: 875b6937 7d6513fe 49473f22 9ed286c8 66cc4a82 eefb236c d707ce52 8325625aPosition 155 of 585
Bitcoin seal: Anchored in Bitcoin block 971775. Download the .ots

Inclusion proof (10 steps)

1. right 8f5de2bc0c153ecc574f6073c6e336c769c1f2d4604b6a46c9b4b6cc749f4fdd
2. left f5a6c44f8451467f7aa5256fdfb9c43cd2eeebd599806aba648845dc5483ee27
3. right eb822aaeff22488e52d84a440fd9a092005068bd651c7a69671f835efd6de0e5
4. left 94b39bb4083a4dc640ddc9491212afbc86b6e078e2439ca690a565d2ac59d052
5. left fb8b7cc8c0da1b608693338eee98a58e64170ab7caf6dd3b4639cf9f11636087
6. right 7538bb38a5befffba3614bfdafed3eaf1c4c66d8266e6a8aef6759d70aa5ac47
7. right 2bf3b769e2c4dad084a540de07ce6e74b00bae8f8fba0430259d8a7bdd0eaf36
8. left 42f37b02be3bdc6c35b90e45db618ad16386310d955f6d124e526ebe8322e618
9. right f44af80bfc8b695e829ff69fbd76076bd21cb4c0e71ba2164357ee887466b825
10. right b4ef83dd02193d9ebe05cbc5d0c2e28c77e34769295c2c15fe654770495b322a

Recorded content:

["tipsterland-huella-pick",1,1014949,25499,"2026-10-16T08:52:30Z","Fútbol","2026-10-16T16:30:00Z","sha256:491cd22a5835854d9316b5ef7b74b3e8bec1df592ed7220cf9b60cb6d6268543","2.2","2"]

Selection nonce: 3dd7dced24aa1d4387bb7834a4eb77d3

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.