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 10/22/2026 at 11:12 PM, included in the fingerprint of 10/22/2026.

Pick: #1019058
Tipster: Pdeldom (@pdeldom)
Event: Ciclocross
Selection: Niels Vandeputte top 3 · @1.45 · stake 1.5
Fingerprint of 10/22/2026: ecd2948a 23e43585 f8a2499b c2aa1074 319bfdd5 2ae26637 33c9cfaf 590ea0cf
Pick leaf: 6bd0a1e4 f4972263 b66c5881 2322cf5d c24e2013 a3f20a25 c738b4c6 0f498701Position 489 of 508
Bitcoin seal: Sent to OpenTimestamps on 10/23/2026, 12:17 AM; Bitcoin confirmation takes a few hours. Download the .ots

Inclusion proof (9 steps)

1. right aa878499c4e5a0b1b77e293d9f10b4fcdcd825a5d5e4ebf23f2f74afb0337662
2. right 4403827c7f81287297c504cee435c5d3bcc50d36add0b6e7279a503547dc98b1
3. right 867fb83d895898711a4559833efcf001cae24c0dddf408bb7b9e04458482572c
4. left bf4193e9cf05718ac76664e6e6578cc8b1d9ec4f329f86a5eab87502e28b46b4
5. right 963e5d20eace735af86e0aa118eb67abf2ec648395c5617eda78988391f036d8
6. left a1aed1facc270acd00e1524a426f3a6e72f9608aa738cb9009e7eb9ef201599b
7. left 0f4b1ee0e137c4ea11ee1fcabd410755c1b03e5ba2ca800a47fffdb62375b1e7
8. left 2cc0fc45ccff29b6aa8573c7173daee6ccf0cc61467298d11891635d4a87ddf8
9. left b6315aceebbc59137ba169a88c7fa9fee5649c78618c4ebf9cbd7a1a6ac9655b

Recorded content:

["tipsterland-huella-pick",1,1019058,22620,"2026-10-22T21:12:50Z","Ciclocross","2026-10-24T13:00:00Z","Niels Vandeputte top 3","1.45","1.5"]

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.