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 10/14/2026 at 09:10 PM, included in the fingerprint of 10/14/2026.

Pick: #1014167Paid
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 10/14/2026: 1daa96e9 0868f35c b70e1a67 78436946 34ec3234 68ad6d4c 1c388e06 e17cd0db
Pick leaf: e1e96fa5 b4ece59c 863790bc 4538e83f 6f8df68b 644c2917 05e40f07 c8551a8fPosition 542 of 642
Bitcoin seal: Sent to OpenTimestamps on 10/15/2026, 12:18 AM; Bitcoin confirmation takes a few hours. Download the .ots

Inclusion proof (9 steps)

1. left 0be7569c57f1f05bf901210eaade749f37dc307e23c134e0d376eb1ffbec9a1e
2. right fe346d36617300281d8fbeaee3441461b1a066e919be928a15abccc6f84a4739
3. left 31ff77816a54f042285c0f4468921476d94b15f4b9fceb3b73547b78b45cd187
4. left 016bb6e42dcf44a98ae5c72866da3c5c5841d9a6c1e66c47840335a3560f33f2
5. left 371e70b2ae49d95252ab2bf401995c76da320484ffce5b5f5191e042796dee78
6. right fbb92bf9514599ac04b8b1c95fc97769e4df2812af38f0a565bcda240db31e90
7. right f4a76743b2f9860326276940fe7e8c409edb70da46754fac93b0e9360293fec0
8. right e96f9c7cbb2a5ced9b237c90741cc74d9db43a1c68d0825e8ee29667b79ce06f
9. left b0fd5b7f0ca87c7340c60cfe88f54942015d0e58437d86120dce63a5b975a45c

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.