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 10/12/2026 at 10:37 PM, included in the fingerprint of 10/12/2026.

Pick: #1012969Paid
Tipster: vexbet98 (@Vexbet98)
Event: H. Hurkacz - A. Davidovich-Fokina
Selection: Gana al menos un set A. Davidovich-Fokina: Sí Gana al menos un set H. Hurkacz: Sí · @2.1 · stake 3
Fingerprint of 10/12/2026: abfcb5ca ff0e57dd cfd3edff 8ef9bcb1 7581143d 6eb3fa7b 89b37303 5a61d0a1
Pick leaf: b0b6b19f 63793ece 0dfd4406 83c7cf90 b0e6cfcc 6b2135f4 e2b97507 7705e433Position 521 of 593
Bitcoin seal: Anchored in Bitcoin block 971147. Download the .ots

Inclusion proof (8 steps)

1. right d1355c2f11da393dfbf8378e738eed939d4ef13622bf6b7648a5794d615a3a21
2. right 1bc579f9049d96fb3163acb2868c9287b4198dcf0192bdbfcdd98805e5ffdd7b
3. right 6b587d11453030eeaf1298b3d476d13912c5cf0cb2964021337cf2c204063e95
4. left bce702dbcb9ab0a94356969e1ddc59f4b6ab33356633fc32b65e9c28c9a48249
5. right 135409f10deb3dec1cd8770baa78d92b671ba18085a0296f288a589f0d32d4ec
6. right fe3aa2dad420a62c279d91d63e1f6e78f7ec3ca95914c67cc29e681ac1ead3e0
7. right cb1d1f8a0b24843db8f9954181c1c40e475049b7c50fbd145ad33051b2e44486
8. left 127ec404a34cc07266e9a436ca200ceb0408ff9ae56dd109173b33500edeb12a

Recorded content:

["tipsterland-huella-pick",1,1012969,23889,"2026-10-12T20:37:01Z","H. Hurkacz - A. Davidovich-Fokina","2026-10-13T11:10:00Z","sha256:7a478661abc0f398736dc62b42cc700f888d7a220bbe118f42e255d78ed0f3fe","2.1","3"]

Selection nonce: 05b36aeea68007e79a0a99d1fb94095a

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.