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 10/10/2026 at 11:42 PM, included in the fingerprint of 10/10/2026.

Pick: #1011666Paid
Tipster: Los pronósticos del Prisionero (@LPDP)
Event: Erlangen - Melsungen
Selection: Hidden: this is an unsettled paid pick. The fingerprint stores its hash; it can be checked once it settles.
Fingerprint of 10/10/2026: 79d35bad 38e0a402 eb08b690 a8d18b11 84ea9322 df648b95 679232e0 f137ffcd
Pick leaf: 1e3fae84 2216242d 80805037 0e323409 5aacb114 4bc8fae1 aa5709e8 10d73880Position 727 of 737
Bitcoin seal: Sent to OpenTimestamps on 10/11/2026, 12:19 AM; Bitcoin confirmation takes a few hours. Download the .ots

Inclusion proof (9 steps)

1. right bdfe5098db8173e0da7e4f0b055f47fdb00b1d28087aac7384bf3e32a77282cb
2. left 5fff75d35894038441a88ab0bed4b239024cefe31a0f2f5aebc2be6cbbaa709f
3. left 845f0f3d9822f3366671e0089561db374f73ce476f088461d570f4d10b516624
4. right 3a1217ab75c9750adcde64db1944fcb45371f9b6d9381e081c8f04e85fa1f6d7
5. left ee9039c539a8267e04a17d3d953cc3145af1cee81831d48484697f6c5bec1187
6. right 02875c32b4d2864975d4d1d47a455860c387b4b210cf95203a475ff79c7850bb
7. left 45df19c057fd40b3e9a4067130ea5163d08cd1f2fd3e3909c300f54ebfea6938
8. left 25239823ae8f84ae7b3f64fdf684c1031d2ac8e671f5d82502cd9c6378262fa2
9. left fc1c00aea746c01615b4a344de30f8f15083bb4c6dccb9eb41e359d726d06d4d

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.