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 10/19/2026 at 04:19 AM, included in the fingerprint of 10/19/2026.

Pick: #1016905Paid
Tipster: vexbet98 (@Vexbet98)
Event: Federico Cina - Jaume Munar / M. Arnaldi - L. Musetti
Selection: Ganador J. Munar Gana al menos un set L. Musetti: Sí · @1.51 · stake 5
Fingerprint of 10/19/2026: 8f52464c c60bc515 726ce1f2 0d1f31d1 6054e493 3ad1de21 f6f29d7b c9f4684e
Pick leaf: 2ca62a44 c92708eb cfbc483e e73507fd be65594e 429dd505 a95f754a f152ab64Position 90 of 626
Bitcoin seal: Anchored in Bitcoin block 972220. Download the .ots

Inclusion proof (10 steps)

1. left 870d34f63d3a4c6d7642f1ff9be50317567d47fb120dab977aa14e7d49d1b09c
2. right 0b673faa7864907c44974950072e6a6b401bf4362448a9e8feeea20bae541253
3. right 062b41bf4f53d077b50192515e3633034cda2b321be2e670d92fbd45d71376b0
4. left 9f2ce2df9d09f0ea40025dcdfcc073449a438965d9880bfcbc92ae3ebc36d88a
5. left a7b2cb6a84a98dec97d86fbdaf40015faa24df323f997d6ee4afc1257ad1ab86
6. right c720c0c86ad572bf081f4d0f33dd035946e1bf7907f69243301036f63adf0e7c
7. left bb638a9a56b3e9117393b0c483a2e7105429c8e1592d48aa712ae1d71feac701
8. right 21043d971e8a1ba4c9321cb7a5882b2916776eba6c5243bb5e5079ca954ff17f
9. right 2754467c33d62a7fe277b4af48d6296862f45ad66d8c5a06d879675908d9f809
10. right 3f88c13167ba8d48c41b6c7371a59d5893cbc3e098d849bb3833bc13877cb0dc

Recorded content:

["tipsterland-huella-pick",1,1016905,23889,"2026-10-19T02:19:24Z","Federico Cina - Jaume Munar / M. Arnaldi - L. Musetti","2026-10-19T10:00:00Z","sha256:d996b9332a401d49a6038376f26748179dddcf593c595d41eaab74487363d7e9","1.51","5"]

Selection nonce: 72d91831cad361ffad7805c5e9f35950

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.