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 11/11/2026 at 03:53 PM, included in the fingerprint of 11/11/2026.

Pick: #1029910Paid
Tipster: Doomenech (@Doomenech)
Event: K Olsa Brakel (F) v Standard Lieja II (F)
Selection: K Olsa Brakel (F) -0.5,-1.0 (Hándicap asiático) · @1.8 · stake 0.5
Fingerprint of 11/11/2026: 55210673 88a921dc 9e56dcca 0c450057 cd56e3d2 0a242253 f958e26c 92f7381f
Pick leaf: fc21da0e 7ab6d1a2 b42d68e1 a6ff7a18 308d0cc0 40d65b8c 34b08967 a8d783bdPosition 234 of 425
Bitcoin seal: Anchored in Bitcoin block 975491. Download the .ots

Inclusion proof (9 steps)

1. left 2c367c3cc487264f61234f87a2c4f2bc00dfbec656bf315e8c52ce0131853072
2. right 62d243913a79f07e66a92b52e3132cd8d62878b79fcf9a48b75ac8372ac5a650
3. right c87420f114864286d872755226d6a948d06925e41d196f516e33c1f1067d0b60
4. left cfca5da47deb1a7ef7725a9da57f69222dfda91002824cae843b0220515a866e
5. right 02132c29b2ac63a8fb1ed67db1544e10bec53e6e37bf63dfc38d68ce8cdfb42d
6. left edb6b3d08f33f0fa165f1f08bfab779b5644e94e3c98da1572d98988b150084d
7. left 72babaee74c9bb64d24e50baacb5bd7899914ad74bb6a042d7788ecb23b5cab2
8. left 09923d4193aa6cba581f40552660b9a613b0cd8978d333239941396c032e59be
9. right f2a602842d22b35688bd4948d1ffeae960a29ec8a4bc515aed996599df4a7934

Recorded content:

["tipsterland-huella-pick",1,1029910,8813,"2026-11-11T14:53:43Z","K Olsa Brakel (F) v Standard Lieja II (F)","2026-11-11T18:00:00Z","sha256:0ccebd610d11481a7f229361d417d4fbba0f084cbbe42d4fc644f9c51e0398c5","1.8","0.5"]

Selection nonce: 02b2b6c6259409dd6b283e1bbdbfedb3

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.