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 11:06 PM, included in the fingerprint of 10/13/2026.

Pick: #1013610Paid
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 10/13/2026: 77513d56 4616eef4 baa5c499 e6542aac 55844484 651ecd11 68c8a07b d0950e7d
Pick leaf: bd8b52f8 ebab8027 e6713fb9 bd14749b 1e59aeea 1e1b86b0 c661ea55 ac62a11dPosition 568 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. left a85d9ff89a500528838bc2e0d061ddc129c5922f77db6a29e4c9f877147ccfc7
2. left d3cf16b35033226ffe14e8f5e44616bf2e12187b4bbafa520e7f56a17f0d85fc
3. left 252afaa06597ec818a19b5157fa4e2e429e931d25a4b0dc940211fb4aa8b4bf0
4. right 1c33dbd559e6ace5236a8e151db2340505e180481a5416c74765e8ca8cf8948b
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.