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 11/08/2026 at 10:26 PM, included in the fingerprint of 11/08/2026.

Pick: #1028930Paid
Tipster: Referee Card (@Refereecard)
Event: Las Palmas v Eldense
Selection: Eldense 0.0 - Hándicap asiático, Tarjetas · @2.02 · stake 1
Fingerprint of 11/08/2026: fa22a1a6 1c8ffe49 c2af6258 d767be90 4ad8e314 97df5948 4d5d1724 9d1eb38f
Pick leaf: 3a7d92d9 f9bf3b05 865ba2fa 91e5f168 081d9ab8 3146ba80 c4723644 4ea13e67Position 641 of 668
Bitcoin seal: Anchored in Bitcoin block 975111. Download the .ots

Inclusion proof (7 steps)

1. right c9273aadd487178aea3a0e2d2c50d81a2cedfe6c666cb4bbfd6c07e641af1ef5
2. right 40213dcbb10c948a66e48c66c9ec0f266579e52efa64d340e52f3510daec5a8e
3. right 736821c47a7a8aba148c0f96c0c7cb8559cefcfea9875b5222d47ea857057bb8
4. right 66f819a67ff6437623ff33b2ce89831e7c3c4bccd506df9ea1120aaf2348f30a
5. right 62bc10f080b3a4444168dfe4091bc9747382ed60d7a7b1be7990a6cba4f750b5
6. left dd57bd4f3af7d65411e0597a5af57739e6e0c7c026fe14992e20f10431cf5c21
7. left 3535f326ce56eb68483510f0777a7489f1c9c4d437ab983dec483ad053d4931f

Recorded content:

["tipsterland-huella-pick",1,1028930,20769,"2026-11-08T21:26:00Z","Las Palmas v Eldense","2026-11-09T19:30:00Z","sha256:535ae3502c7ff0b7eddf6a3e88858f0a1065ddfca918e23c2dd38641b0d76681","2.02","1"]

Selection nonce: be8a48e88d308eb74a2dc4397906eb68

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.