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 11/03/2026 at 09:48 PM, included in the fingerprint of 11/03/2026.

Pick: #1025894Paid
Tipster: 3XT (@3XT)
Selection: Hidden: this is an unsettled paid pick. The fingerprint stores its hash; it can be checked once it settles.
Fingerprint of 11/03/2026: 3acec364 18489489 7aadbe90 2a6622c2 e0aca98c a06c5d00 33abd2e5 f3633f1f
Pick leaf: f99c4cd5 8a655544 7a5e2878 9bb546a3 323bb0b4 942a06cb d65f3c98 02a8c1e2Position 496 of 544
Bitcoin seal: Anchored in Bitcoin block 974456. Download the .ots

Inclusion proof (10 steps)

1. left e3820ccfcb061c20e905061153d460355af061c626c4043faff028b3d6425cca
2. left 144586d874dc86c58e48e1d3f7d1b15341fd8a29305c11722cc17ae160fdf501
3. left 52ba441622b90d960c74cadbcf87cb230d5d5c21d5da59b3478bc27b125cddcc
4. left b047920042e153f687ec49ac5792dce2caff85231318d125b66d21d0e01af2cf
5. right aca8a1308fc7f662e9d6e2e509ba21727e64a86a9fb4c235114aea3676cd472a
6. left 07780e36baf18f3ee7d382c98ceb2905f593d0240a5a101ec0d8c6cb680bfc01
7. left 1c9b345dacefd26c913a01eae39e8383cc57511d0d398615d61fa8bcfcf9fc93
8. left bb635b35591a9a1f1f395dde9fe6c211c727506ff13a4cf80d65a67d39b5aeb7
9. left 9ae2e39a49c939e9ede428b43b1a21119f584594ce68bdfd1f5e3994e280fd56
10. right fa36ee15be4059bbc82be02a7762e32544dc0f04a7887cc722791c053013f915

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.