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 11:41 PM, included in the fingerprint of 10/28/2026.

Pick: #1022552Paid
Tipster: Cultu_ (@Cultu_)
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: 1aecc317 fb076250 c1d3c2e9 189b7880 55f01492 9129e67d b6cf2102 83fce507Position 439 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. right 819d07e330f2d0e0e05255aeae0fc9deded81bf759dc7e94900ed7cd9b50d234
2. left 1f21bdc8c4ec0d1df197ecf4dba9deeb3a983b623ae69963968c3cbfa847fcc8
3. left 697d3424f64dc78e83f160405761c4a90e42a3d22d5762e25711c67afbb09148
4. right c6c5409d4b1fd6331f2a39d00f85869610c1e2bdb607120c6db1ed9444f28798
5. left edcab6d4e4467d0836613574ce94ef9b1f00aa0d3c9b671bbf17b1d9041fde72
6. left e807f7f727cf678e148f63c8a25a7de8fde55f7b32e33ecc9217fdffcb22a038
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.