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 02:40 PM, included in the fingerprint of 10/14/2026.

Pick: #1013917Paid
Tipster: Magnus (@Magnus)
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: fd2d4881 528ba573 2b698d8b c830c907 62d96167 797a7d9f a9a714e6 42a3e591Position 292 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 (10 steps)

1. left c6a9de12fa4848b8164817466cd4abf5e8106cb662eb6427ef2c8ce0521b4457
2. left 890d153b1862646e35ce928c71ac65b2304c6e3476bcebe6d220715a27067629
3. right 4eb54c922f930a759e91c6990c54596395c9e31cf0e113df2a8302fcd91ae75c
4. right 4f6a2d5c2182b95a377dd59134dbaf2fae9a32734bea43aa3f06b5e023adfad0
5. right 3c00791123e811f561b0ec1118ba740542ed78521055a14773a5a825ce16bb46
6. left 5cd1c09860dee3841f93198961685230c864876538b7cff2471c09c248f61023
7. right 7c3d88cba53381ca2b6be90911b9343d2fb0b2d39de2313dcb615d946baa92f8
8. right deecaa2a9947cb38d85bf55798319c485b534574d7a34cd8bab78fafa52b2913
9. left e453d67aff654d3178257cf262fe394c13689159e62b50f958d6eca26970aa8a
10. right 303d8594cd64ef6ad046805ba87db92916f640ab476ff0d668b547cfd25c33b0

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.