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 10/09/2026 at 11:33 PM, included in the fingerprint of 10/09/2026.

Pick: #1010923Paid
Tipster: Rodribet (@RodriBet)
Event: Rayo Vallecano - Athletic Club
Selection: Sin tarjetas antes del minuto 29:00 · @1.83 · stake 1
Fingerprint of 10/09/2026: 3b4117b3 ab495ffc 7c0bbdb1 e01bed5e 38b4fdda b3bb6529 152fa34a 28fd96b0
Pick leaf: 79f40b40 ccefaf74 54f0c9d4 3a646581 e8ba71ce 59517871 85a89fd1 b7f373e5Position 547 of 560
Bitcoin seal: Anchored in Bitcoin block 970685. Download the .ots

Inclusion proof (6 steps)

1. right e7a9953d2b25cc3965f1d80b215da64a747bf2246b9b75da32fcb0bf81cb082a
2. left 0bf9847aae949217a814dda5231e7251cd2d4e1d321a02392798b2d0a2a4f1a8
3. right e02972fc7aa8fc59485129a46ed4c09266420ec8404fe8072bbddea20525c308
4. right 6465da4fa732324d5ffc356b214c25f44ff31dbf63fcf892c9d6f218ec334fdb
5. left a488b61d8a7678fb6fd24d24b91f5060ed904e1bda4eaaf7d33e25f311de1f52
6. left 50e4429858c15c9261710f336031a39d2a00b6890605c762a13b74b5e897c2d1

Recorded content:

["tipsterland-huella-pick",1,1010923,13315,"2026-10-09T21:33:03Z","Rayo Vallecano - Athletic Club","2026-10-10T12:00:00Z","sha256:87c09aeea512c199628302dc86a8297bd79060e8ebf9a700937a19e4f284c152","1.83","1"]

Selection nonce: 8fdb45c8336870b1ccad65fcdf1e7380

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.