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 10/21/2026 at 10:53 PM, included in the fingerprint of 10/21/2026.

Pick: #1018533Paid
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 10/21/2026: 38100063 3518c41b 66246297 9d3d6228 725b4d50 d2f82755 441cd2c1 50547cdf
Pick leaf: 12bb15ec c7a7567e 72c8f69b 115cafa3 45961e1c e423fe7f e9c5bf9b e69a305bPosition 530 of 566
Bitcoin seal: Sent to OpenTimestamps on 10/22/2026, 12:19 AM; Bitcoin confirmation takes a few hours. Download the .ots

Inclusion proof (7 steps)

1. left 120cb0a9609e46a1b0a172ae97bfbbfc47dab05671ac89c934be94926418966d
2. right cbc615e56c8fdc6c5fca28a65ded6a79cfe9401582dd2b4adcccdfbcceda9f98
3. right aef8e17d5c2bd45cd56a38c6679a214d4716ef7240eaf3e1fc9a0d83f99003ce
4. right cda62944e3eb18862f48d5b6b1d8dd1a6b7fc22f4a8ce56cdb1b7ae230f9d826
5. left 6ec60d411c0df24a30b1f3552111d5dfbaec0e9b760ac5f23753224b90065a43
6. right 876e1d343037f1a63b935b3c669cad5d4fe3bd137941cc54a9f4943f2f3129a3
7. left f1d2994afca90faf77275facd5e301312261c47dac9bec99bda75013f0aca80d

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.