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 10/15/2026 at 11:40 PM, included in the fingerprint of 10/15/2026.

Pick: #1014788Paid
Tipster: Unebomber (@Unebomber)
Event: Hania El Hammamy - Sivasangari Subramaniam
Selection: Más de 73,5 puntos · @1.74 · stake 1
Fingerprint of 10/15/2026: 2a6bad2b 9af42bfe f7042298 e11f9bc5 5791d8fa 20ea6675 58bef18a bcc0859c
Pick leaf: 4ada2797 fb216d3a 355ebf56 9f362c0d 79465158 b158bcd3 96db08a1 44b2139dPosition 518 of 526
Bitcoin seal: Anchored in Bitcoin block 971630. Download the .ots

Inclusion proof (5 steps)

1. left c4deb0169b624f22f861c3ad1f2c778f1a7a3a3073b61b11b0e1656c362aaa40
2. right cf58789b2068cab663e20949bc9a0323d82bdc0e184f00d134cf275571a9f55e
3. left 8c9f18f45f6107aa55feca838f4a011413e906919ddad28bd1e4e5659c6809ea
4. right 0039ed27a658b0443dc333d30e1f909432fc3615ff1ee1f4d4a230a68503dc0f
5. left b4d03812dd67b183cf05a191b052b66089724f814798783850050d0ce196d2a0

Recorded content:

["tipsterland-huella-pick",1,1014788,12779,"2026-10-15T21:40:26Z","Hania El Hammamy - Sivasangari Subramaniam","2026-10-15T21:40:26Z","sha256:6ae7842033f1d6569b1dec6b107367242cae01bbe31c8c4f4a59fc113947baae","1.74","1"]

Selection nonce: 790c251479ff8a1ad9e609523e6fc718

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.