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 10/20/2026 at 10:34 PM, included in the fingerprint of 10/20/2026.

Pick: #1017967Paid
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 10/20/2026: fee5d608 12e1df1a f2549fed 03934c00 3300641d a2e17946 3ef22d16 e44f7cc1
Pick leaf: 0d3ea1db bdcdf57c 2d84161e 7c843eb8 4d5badf1 c033ecf9 ccb51309 bda8264aPosition 525 of 561
Bitcoin seal: Sent to OpenTimestamps on 10/21/2026, 12:16 AM; Bitcoin confirmation takes a few hours. Download the .ots

Inclusion proof (7 steps)

1. right 0632d43f346b391e8f9b1ff5230e14c7d322d5eb7e3ef0c1f9cbf5ed7ba7de37
2. right fa230579048cfa5822328e8845c290a6f63ed0e03671e306e5f780f517bc8a73
3. left 6526cb21623e85b6ec956bbf613c0ce5ab7dd3537511b611e9a1c98408460799
4. left c36c8de58dfc8ac98341b7925cf4bdf9b026b2d63717c9adab16bac201a1d062
5. right f587fc6212e9a50e6e5bf3dcf53cad5360a5cac498ec803255c73684cbfede2b
6. right 1a747371c725599eec4680ea2f564ae270f143368c3a358c17a418383c749140
7. left 4c781786a00e243c77fc5f4595aa2857401fb36d4816f4c6cf25c298f1e80e07

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.