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 10/10/2026 at 03:46 PM, included in the fingerprint of 10/10/2026.

Pick: #1011352
Tipster: Oashai Tips (@oashai)
Event: Alavés - Atlético Madrid
Selection: Crear Apuesta ||| Alavés - Atlético Madrid ||| · @4 · stake 0.5
Fingerprint of 10/10/2026: 79d35bad 38e0a402 eb08b690 a8d18b11 84ea9322 df648b95 679232e0 f137ffcd
Pick leaf: 639f6512 1b1745a2 911d41e5 48d20680 b54e7a8f a76dee0e 811dd74f 167f6a13Position 414 of 737
Bitcoin seal: Anchored in Bitcoin block 970837. Download the .ots

Inclusion proof (10 steps)

1. left d8d2ae64a4881a14c2bda84b472c53352e8ef1a978769c59cea6855def97d892
2. right 7985df66680d4e82c37a8106b1bc5ae9cc26d92edf33c5d2e276086b305f68fe
3. left 2d679038eafd27c054d75c53ed7b74db23dc785bb47977e8998d8214eeadbfae
4. left b0726a062428733bf2a30857892dc659a41167cb26310a34b847696034e8db0c
5. left c8cd99b344ee34406fa9f01e3cd746bb04eaf4b3aef8fce02fd4c73ca3512d84
6. right cfe14d6ed1bd9df5eddc7b8438e9009c3b7c14cd37d94d89278d55dbaace4354
7. right 6a0f0c4a80c39950eeb3af850f6da90b061004fdc9127d6f8c9aa1f6f65c6a7b
8. left e3afdc51b0e6b0c80645bd97a2a19d9acc28b1261ec87722a9b7d106c5076fb8
9. left c752b2d5e3764f09f5d8ec4808d01a9c7570b1c2c2d15079ceb3695f8e779062
10. right 2f28dc4c85934453f5b78519fa54d79e5202d541db8c8e190f6cd2af421d908d

Recorded content:

["tipsterland-huella-pick",1,1011352,23620,"2026-10-10T13:46:26Z","Alavés - Atlético Madrid","2026-10-10T14:00:00Z","Crear Apuesta ||| Alavés - Atlético Madrid |||","4","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.