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 10/11/2026 at 09:02 PM, included in the fingerprint of 10/11/2026.

Pick: #1012370Paid
Tipster: Los pronósticos del Prisionero (@LPDP)
Selection: Hidden: this is an unsettled paid pick. The fingerprint stores its hash; it can be checked once it settles.
Fingerprint of 10/11/2026: da851c69 85bac145 6f471247 5914e20c e61254e5 08f2c6de d59d9f61 8eca6bb0
Pick leaf: b434576c 525823bd 2256d622 7bea762f 1f0d1bf5 a489c63d 112a1260 b650a47cPosition 694 of 770
Bitcoin seal: Sent to OpenTimestamps on 10/12/2026, 12:18 AM; Bitcoin confirmation takes a few hours. Download the .ots

Inclusion proof (10 steps)

1. left edddec2b0ab943151a9b1ea66ee3be2ad725ec668dee5837f26f5eb35cdea5b6
2. right 709845731046ca6cde119f49b0de7e9842c3c6fcc79e2e7501e55838401a34fd
3. left d41bab6633348b5c8ca08deff0e58b5bba723c71c0b6ac792d3c9f3c938c154e
4. right 48d8a263b1e0e22534418c08f3e0b9516a7a78e2c25f07d3b5a3d8ca0e6deb16
5. left 49f48a4b5b7240ba22d71a33fb3af826f2f44b322ab182d734b5c0263558572a
6. left 9fe30ba67b8fc413d95859c42547e20324422719d05641128a528eae2e8c9651
7. right ff5b44784cb21d7ed9777375e28682bce1552d4beac536330564d8f4c7c497b7
8. left 9a4965410da5cc3076a3d61193c73b702dbb6530405254177e30e0628b820b7f
9. right 74099cbe28da86d15b56865584c11d7ce604c6eb654f94cc3e376c810b3fe2d9
10. left 9ca79a0159b596dbef79d4fe2db3aeb24bd3d27b155860e65dc980850f0b9d01

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.