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 10/25/2026 at 11:23 PM, included in the fingerprint of 10/25/2026.

Pick: #1021060Paid
Tipster: Pickezz (@Pickezz)
Event: A. Kachmanov vs W. Shin + R. Te vs M. Alkaya
Selection: 2-0 A. Kachmazov + Gana M. Alkaya · @2.21 · stake 3.5
Fingerprint of 10/25/2026: f8b0a7a4 d2296a1b 6c4b01c9 987376a3 1dbc41b1 cd0b85a9 e0da9b75 b807d197
Pick leaf: dccd8763 9c4dfa1c 64606a32 c638428d b780523f 8a176dd5 a4a646da 338f0b6cPosition 673 of 691
Bitcoin seal: Anchored in Bitcoin block 973146. Download the .ots

Inclusion proof (8 steps)

1. right d7fc0efcf92c8dc0e23e538e334796b77226573086d8dcb499cfca7d67a4d75c
2. right adff22243713a9e9f21931d6a23f401a045e6daccd07b0d80b636a8105a6c813
3. right 4760c23a766f4c3cb61f9cbd0bebe2f7779d8d74e87ff617371db36b44462936
4. right 6477333240cbd25bfee2350c23e1f1053a6c8fc4d5781c2f4da31e31f0f8b01b
5. right 6465faa21163879176e22c020611b9878d22b6b77cc9fb2ccc8339ed675860d9
6. left 3d30b35e8da7d4005ac32f5641e42374ff8387f8f4121aef49a5377003935727
7. left 1c830e79992b35e55f48a94087e5e2f3acc1fe6f32092f5626b0c7803f87626b
8. left a3bd7e7dfd6806a0785439b6cb5fa10ae24114e99765e1eb9899899e74b7bf3a

Recorded content:

["tipsterland-huella-pick",1,1021060,25782,"2026-10-25T22:23:41Z","A. Kachmanov vs W. Shin + R. Te vs M. Alkaya","2026-10-26T02:00:00Z","sha256:945f29506d1f4b3b83d4ef3cef015081b71c136d420c45e1043945e3e1a703af","2.21","3.5"]

Selection nonce: f4fe23947461eb00ab8697f2d2f1a257

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.