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 06:07 PM, included in the fingerprint of 10/10/2026.

Pick: #1011465Paid
Tipster: MarcoF1 Picks (@MarcoF1)
Event: GP de Singapur - Sprint
Selection: Top 6 - Verstappen + Russell + Leclerc + Piastri + Norris · @1.94 · stake 0.5
Fingerprint of 10/10/2026: 79d35bad 38e0a402 eb08b690 a8d18b11 84ea9322 df648b95 679232e0 f137ffcd
Pick leaf: 420d6350 3921a10f 4e96102c af22e5ad 40c6c896 79b655db bb8fa4e8 63d23970Position 526 of 737
Bitcoin seal: Anchored in Bitcoin block 970837. Download the .ots

Inclusion proof (9 steps)

1. left 864585222e59865217497bf5f65f4b4486eb454cc99b1e3de4365222bd8474c6
2. right dadb3f8daecea3771af179c1a90e9a0c8d20eee96c2062fbe51dfbc7efa97d30
3. left b262c47e3681db75084ac6d6c556b1623a2352b5a866d3f3e5ec78311f109262
4. left 01ad0959e0a8574b3f9cc82aa326ab44eae50faf7904dc795f3ba9c32ed3cafe
5. right 381ed97f45af31213d23436e6f455aa36531f5123bd5599ee9444a3290dcceef
6. right eb2b06a285739b17bc4276e9f73920133bd89950a0908e7ab64cd53ad9d12b50
7. right 9e0e43aca25a087ecfff16ed0af310b772dfe5f6d110dd6848b723ff0dc6903c
8. right dd3961f832bbf052f7defb7d1fa5ecd7585ecedf4b8836661fd10204775b9845
9. left fc1c00aea746c01615b4a344de30f8f15083bb4c6dccb9eb41e359d726d06d4d

Recorded content:

["tipsterland-huella-pick",1,1011465,72,"2026-10-10T16:07:01Z","GP de Singapur - Sprint","2026-10-10T10:00:00Z","sha256:e4f82950bbd50b12edfe28e70ba1467b84fa495a96bf998f6a0a7cdea8203b21","1.94","0.5"]

Selection nonce: 26a10ad7a5b2206cccd1bad3c4611f4c

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.