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 06:04 PM, included in the fingerprint of 10/10/2026.

Pick: #1011461Paid
Tipster: MarcoF1 Picks (@MarcoF1)
Event: GP de Singapur - Sprint
Selection: Ganador grupo 3 - Alonso · @12 · stake 0.25
Fingerprint of 10/10/2026: 79d35bad 38e0a402 eb08b690 a8d18b11 84ea9322 df648b95 679232e0 f137ffcd
Pick leaf: 10b2ce88 985fae5c a86175e4 c701b4be 534208d9 81e5dcd3 a2d7174f a8c533c4Position 522 of 737
Bitcoin seal: Anchored in Bitcoin block 970837. Download the .ots

Inclusion proof (9 steps)

1. left 55288cbbd86a4d288907328d08a46760544745c953b26d36139e8190d2ccbf12
2. right e06d4c875d7b47a57c37ce2b171c06011c723209536106cbc20b287fde17e233
3. right 57c051c41a2a54efd5b5c6e6666757849aaf67d8a6904ec5b21e09fef3695f4e
4. left 01ad0959e0a8574b3f9cc82aa326ab44eae50faf7904dc795f3ba9c32ed3cafe
5. right 381ed97f45af31213d23436e6f455aa36531f5123bd5599ee9444a3290dcceef
6. right eb2b06a285739b17bc4276e9f73920133bd89950a0908e7ab64cd53ad9d12b50
7. right 9e0e43aca25a087ecfff16ed0af310b772dfe5f6d110dd6848b723ff0dc6903c
8. right dd3961f832bbf052f7defb7d1fa5ecd7585ecedf4b8836661fd10204775b9845
9. left fc1c00aea746c01615b4a344de30f8f15083bb4c6dccb9eb41e359d726d06d4d

Recorded content:

["tipsterland-huella-pick",1,1011461,72,"2026-10-10T16:04:56Z","GP de Singapur - Sprint","2026-10-10T10:00:00Z","sha256:800ae2be0a5da88780e1c68f9a28fb1924529cc4b8da98365d9c9c138aa8c33d","12","0.25"]

Selection nonce: ef763a180f59e707aaddd86ddc87bf55

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.