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 10/20/2026 at 06:13 PM, included in the fingerprint of 10/20/2026.

Pick: #1017784Paid
Tipster: vexbet98 (@Vexbet98)
Event: FC Porto - PSV Eindhoven
Selection: Ambos equipos marcan: Sí · @1.62 · stake 5
Fingerprint of 10/20/2026: fee5d608 12e1df1a f2549fed 03934c00 3300641d a2e17946 3ef22d16 e44f7cc1
Pick leaf: 45279ebe 4fc55d9a f8238fa6 2d56e8c2 2034b635 45fa4c50 8f235a34 9cdc82fbPosition 342 of 561
Bitcoin seal: Anchored in Bitcoin block 972387. Download the .ots

Inclusion proof (10 steps)

1. left ad61ec199bc0afe887c40e253d0ea26dc3c114607744017a8d31a46d6da61f8d
2. right 4dbbb7dddc060d9370672fed2bad1cc5c7aef05d3acd2628ba9cf1b2aa798aa1
3. left b71aa12d2a1a9512bd7591a3be39b248876a831b3c73f12b21c7b5680d6b45bf
4. right 41d9f7bfc33da88745c3c99716be78f722216aee9ffa00e80c5ec54eb7e44c13
5. left e69ed52e3cdf024b938e6aeb264436b1e6facfa5aae9cee0db0f0f1cc5f37aed
6. right 548d58572f9eef285686140b670dfc048aa697bb8124561ddc39ec34908bb96d
7. left 16ff8ea9dca779f005cdd8588b9c2c3745428d8a6abcd3da52dd44eb1108b799
8. right 2c5a702631ae8b7b6e0e64a404be693d02704fbe03db9399b0151d830172dfc6
9. left 2d33b33c9100fd5971d8549dd88841970a3b2c16a15d8c73d51c2f27ad485da6
10. right fc55045a724c77d860ebde3910d3e449060226e3a4dc146c5fd2e8dbc980dcd9

Recorded content:

["tipsterland-huella-pick",1,1017784,23889,"2026-10-20T16:13:27Z","FC Porto - PSV Eindhoven","2026-10-20T16:13:27Z","sha256:7bf67ad1769947f4c86f0d56ffd8ede6948b05b96eada8f2f0e944cc5aadb8ac","1.62","5"]

Selection nonce: de989f1805ec858c39df8fe9af9c25ab

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.