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 02:24 PM, included in the fingerprint of 10/14/2026.

Pick: #1013911Paid
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: c9442c4c cb8f900b cb66d2b1 287a5886 95cf6a97 a66e0b0f f4d7d21e 43630315Position 286 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 bdea366fb484c306df12dcd69a4cc10f3874a426e81b0bd5dbbe6d87fe9a63a5
2. right 8ce16bd66dd35b445f8fa81e32ab6c3ca15a4c5f7d8166d8870f0880fe3ef27b
3. left a567208ebd1f1a77e51496d704e0cac537427f59f4e7ab7b81ba0052768d63ff
4. left 217f58de0a5aea327b462106563312ec5799aa0254fe8e923dd598f6f5fd0059
5. left cbc7cb8334a47345a0455700641e045e84759099bfcfd1756400d930d2827e06
6. right b35c510479970b5a032592030b7203ec354a68c95b2effe342e4956be0e4c86b
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.