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 10/13/2026 at 11:28 PM, included in the fingerprint of 10/13/2026.

Pick: #1013615Paid
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 10/13/2026: 77513d56 4616eef4 baa5c499 e6542aac 55844484 651ecd11 68c8a07b d0950e7d
Pick leaf: ba800fd0 8ea9ad93 098df44f 78e2222b 8f7f08be afb2d14f 1cb587cc 8a3befa0Position 573 of 583
Bitcoin seal: Sent to OpenTimestamps on 10/14/2026, 12:17 AM; Bitcoin confirmation takes a few hours. Download the .ots

Inclusion proof (8 steps)

1. right baa75a4ad38fb6a0e17a083e53aeb93d5e4206ed30bad3a309195641c3af939b
2. right 20470b8b0184fe130c758c56ea6c6310ac61e7924093e4388eb1407ad2289f81
3. left 820e92f7bfd58a693c86d370e3e117ed1018f151e565a6bd2b718e61f8d9dfbf
4. left f19fd185e51675ef33a71262f04c9e2003318822733061ce6915a343ade22338
5. left e4c61b01e5dd01e2f96add325618b38de03985e9a5c6cb531601cb069a5cf36a
6. left 6db44caf5c6131c3bbb94ae3b7baa92eb44f493e1218c46def587439b211fb3f
7. right 4a753ae87805c419f1b8e9c9eae3fd49bfd8beb818e315499554bc79a2bf8ddf
8. left f2f8e5ac51e85a9cdcd9bcc668cbd56f305906b20709ad37ac372e2a628ad591

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.