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 10/28/2026 at 10:42 PM, included in the fingerprint of 10/28/2026.

Pick: #1022525Paid
Tipster: Mich F1 (@MichF1Insider)
Selection: Hidden: this is an unsettled paid pick. The fingerprint stores its hash; it can be checked once it settles.
Fingerprint of 10/28/2026: e1c57005 23d76239 c26060b1 7607fe56 cd83284b e4cf2894 2cd6987b 397b12a1
Pick leaf: 844e3130 54ffff4d 9e889512 c753c06c 2b6c80c4 d5693f0e 01c88d1d 0d00cd29Position 412 of 447
Bitcoin seal: Sent to OpenTimestamps on 10/29/2026, 12:16 AM; Bitcoin confirmation takes a few hours. Download the .ots

Inclusion proof (8 steps)

1. left fd34c90f6d32a156e7fc5c20892d235b059d7baa940d7fdcc992df026b933d8d
2. left 24889183add48afa29709e77ac7efd3aa75d855fe62f9c9340d362412acee8f9
3. right ee07f02e2ba7f1a0e844dd46fc99b8169fe43567bf0a94c9e673ce5ebb688c6e
4. left 68dcf0292b09161ef00e459e4bb829ae2df2bbf2ff9c83b64889180d718c2090
5. left 744fe367d615a1c3d11b092f9827e3b443d26d6fbb71afde289aa79925f64df5
6. right f8ccf475e1adc5dc69dab344a227c1f58b031670c6c268c6b9f76e7d9d11ef82
7. left 029c53b7280c49a7e80f42a30ba81ca02a15ca01f451bc443f373fc7203cfe50
8. left 003770e831db596e0f4c79627ceddb7c6c2627c9be8b2313c48b660de732a548

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.