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 11/07/2026 at 11:01 PM, included in the fingerprint of 11/07/2026.

Pick: #1028240
Tipster: Pdeldom (@pdeldom)
Event: Ciclocross
Selection: Felipe Orts mejor que Laurens Sweeck · @1.72 · stake 1
Fingerprint of 11/07/2026: 24a341c3 60f797ec 8555cf16 3e0ba860 25681886 73689646 8ef29891 c6f671f5
Pick leaf: c61f4375 df0b5dcb 509c8047 df3b247c 29211cd3 484805ba 6d1ec4c6 047a1105Position 716 of 765
Bitcoin seal: Anchored in Bitcoin block 975002. Download the .ots

Inclusion proof (9 steps)

1. left 4330d853924938e8e69607da0027a66750cdc68e14b559d719b0016b2c4b7dab
2. left 42d5a4673fee051c42141d0c93d768d2593b154f785c845781053d0f6b022939
3. right 65430543ca530c630c28faec9224de39b73b6c6b4070017405d59fa67172f35f
4. left 7624ec7207f0c0d349c32a0e979072b654668e42c2f322b6a9b3d1b0b8f41268
5. right 440ec7b8b8874472278b75b7fdc9211fcbbf02eb74227015b35f6e60b985e55a
6. right f2ace69bfd2b173a3d2b5c386b318ea61e4906cce0e1c3e2a0df134ca29b2b58
7. left 171b1209ac60479099e45633cb0722555d801a24869009a79c884a1d5a7e4189
8. left 51909ac2e71e06bcfe6445d8e978314f771f1f6f0e06631fa8b48f2d4546d6f5
9. left d387e52f0f18905c2da6cc4590660bd5f622a51dc2b14dca802d5ac336cc1ae4

Recorded content:

["tipsterland-huella-pick",1,1028240,22620,"2026-11-07T22:01:07Z","Ciclocross","2026-11-08T14:00:00Z","Felipe Orts mejor que Laurens Sweeck","1.72","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.