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 11/13/2026 at 11:53 PM, included in the fingerprint of 11/13/2026.

Pick: #1031077
Tipster: Magnus (@Magnus)
Event: Tomas Grmela - Jan Gembala
Selection: Tomas Grmela · @3.5 · stake 1
Fingerprint of 11/13/2026: b943179b 9698be9e 6489f1da adf47cd5 29adc3ca 0031daf9 eafd5261 80cd905c
Pick leaf: e5b1ec11 03b528d8 e4298625 24d5a881 3b867214 b46898ed 402a908a 0c0086fbPosition 489 of 493
Bitcoin seal: Sent to OpenTimestamps on 11/14/2026, 12:19 AM; Bitcoin confirmation takes a few hours. Download the .ots

Inclusion proof (8 steps)

1. right 739803dfb1034665b617d252e11bae2ec24f0d796ade1c73d67cbe7bc66250ba
2. right ddf8d6d710cf6c300369095e11a723e89ff1a6bd37186946a58c73da609b139b
3. right ddbdf9a2f249f160bd8ffa5e7bac3ddb5f68ae01b7699ca80e0ee535bf63c7fa
4. left afd22c6393aea404b7a776cb6d89f418d5051f8f5ade13e5c9f8bb992233c346
5. left e64b1f83e46007af4385f9f43cc12a6c7ef123769cf3054f042ef78db69a99d1
6. left 9d179cea6a3958db30c82b8e143543d7f1c08e5fdeb1b23abb5c9912dd06f718
7. left 3525ca9e8cc612b5207c47c1e1522d82cd484154f75d1decafb62e97da983837
8. left 7f69caf7316f15eae27912feaf322aa0b4d58ccbf6c789034ac9cb770511cf3d

Recorded content:

["tipsterland-huella-pick",1,1031077,26500,"2026-11-13T22:53:34Z","Tomas Grmela - Jan Gembala","2026-11-14T12:15:00Z","Tomas Grmela","3.5","1"]

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.