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 11:24 PM, included in the fingerprint of 10/10/2026.

Pick: #1011656Paid
Tipster: Saque Ace (@saqueace)
Event: Alexander Bublik - Brandon Nakashima; Daniil Medvedev - Dalibor Svrcina
Selection: Qué jugador realizará el mayor número de aces? - A. Bublik Ganador - D. Medvedev · @1.71 · stake 0.01
Fingerprint of 10/10/2026: 79d35bad 38e0a402 eb08b690 a8d18b11 84ea9322 df648b95 679232e0 f137ffcd
Pick leaf: 32655a7a c3af1a31 1b9123fb a88a8ad4 d8f170ce c3477729 c28af86b 9f18c1fcPosition 717 of 737
Bitcoin seal: Anchored in Bitcoin block 970837. Download the .ots

Inclusion proof (9 steps)

1. right 2a123b731b4b5a18612a98ee98bdb41ebdf74eaa40a1dad8a1107dc027b0a007
2. right 777bd3d2c1a884a6946aa989ce1b1b395fecbca6294d1d1037bcf2103ebf0432
3. left 7a6ddc8aecd4878cdab74f823118af7f0c379e94f5892b06163e36647252a320
4. left eda623300f45fac516b08c4a55e31c9704cae95adb4a1586d1a3a01a18ca5d91
5. right e89016836e2b7ef3c919240c67d90d808c410af56359dff037e370b338b33155
6. right 02875c32b4d2864975d4d1d47a455860c387b4b210cf95203a475ff79c7850bb
7. left 45df19c057fd40b3e9a4067130ea5163d08cd1f2fd3e3909c300f54ebfea6938
8. left 25239823ae8f84ae7b3f64fdf684c1031d2ac8e671f5d82502cd9c6378262fa2
9. left fc1c00aea746c01615b4a344de30f8f15083bb4c6dccb9eb41e359d726d06d4d

Recorded content:

["tipsterland-huella-pick",1,1011656,24348,"2026-10-10T21:24:27Z","Alexander Bublik - Brandon Nakashima; Daniil Medvedev - Dalibor Svrcina","2026-10-11T07:30:00Z","sha256:3bf7f7cacb5c70ac8260777396fb9976f20b6ed58b90c1e01d3b89067517eb6e","1.71","0.01"]

Selection nonce: 6e9e400fc3ca5a22a6d362a91e10df6b

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.