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 10/25/2026 at 11:57 PM, included in the fingerprint of 10/25/2026.

Pick: #1021077Paid
Tipster: SPA OVER EXPERT (@SpaOverExpert)
Selection: Hidden: this is an unsettled paid pick. The fingerprint stores its hash; it can be checked once it settles.
Fingerprint of 10/25/2026: f8b0a7a4 d2296a1b 6c4b01c9 987376a3 1dbc41b1 cd0b85a9 e0da9b75 b807d197
Pick leaf: 2d07812b da378518 ea61a1c5 66c52128 a5c5a87a b0d159c2 8f187813 6b49c29bPosition 690 of 691
Bitcoin seal: Sent to OpenTimestamps on 10/26/2026, 12:19 AM; Bitcoin confirmation takes a few hours. Download the .ots

Inclusion proof (6 steps)

1. left f0ff0be3a99b72a6c857a6de1c35e12a2f29be58c108d9e70a22ad95cf7317a5
2. right af6d00712e06934ecfd4c934f471164cd911f26e16892cf5925697780113364f
3. left ea03a618b1199ed744bb291ac3559eac22a15c9e82858f997b34c0278b400cbe
4. left 3d30b35e8da7d4005ac32f5641e42374ff8387f8f4121aef49a5377003935727
5. left 1c830e79992b35e55f48a94087e5e2f3acc1fe6f32092f5626b0c7803f87626b
6. left a3bd7e7dfd6806a0785439b6cb5fa10ae24114e99765e1eb9899899e74b7bf3a

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.