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 10/23/2026 at 09:54 PM, included in the fingerprint of 10/23/2026.

Pick: #1019601Paid
Tipster: WTA-Picks (@WTA-Picks)
Event: Leylah Fernandez - Marie Bouzkova
Selection: Ganador - L.A. Fernandez · @1.92 · stake 1
Fingerprint of 10/23/2026: 08dcf075 be74cbe1 7fb78d7b 88171036 c2e41472 2876e081 34d94b84 ae52d01a
Pick leaf: 2b6e809c f35c337e ea3e6cc1 86efa960 69e0ae92 e689f029 6712bf2a 38d7938cPosition 520 of 574
Bitcoin seal: Anchored in Bitcoin block 972840. Download the .ots

Inclusion proof (7 steps)

1. left a98ee393d493b6c3063b98907deab4c52e79b0506afc0366960c823e5aa95483
2. left 055183872bdfb9383cc6dcfd8c9cb7f2b27282c3bde054f699874efa8189420a
3. left cdc7a9b2d3605fedcd3703b3f0f15639f96f2662e58a6a4eb74ae37b9c333b9a
4. right a078ddcb3fb6faf83484bb95b1ea58f2bf8b7c743d72cd99643312480820fb18
5. right f85d8560746a83bf6d713086bf393e5635cef16f57c0f89fa140a22f178af82e
6. right d9e6ad9c8ca55d7896734b3ce05879d95594cfb9f9e2e747c4da8960d3ba2681
7. left f769643a4bd614fa9ebde087c22725c9015956108d70212a18a685cb607681b6

Recorded content:

["tipsterland-huella-pick",1,1019601,12317,"2026-10-23T19:54:02Z","Leylah Fernandez - Marie Bouzkova","2026-10-24T07:00:00Z","sha256:5d6b2b087146b6c12f4031735e21d2601c6afb664e95848a9d253d0549ae31ac","1.92","1"]

Selection nonce: faae110c8b3e2ea8a3f921d76452c008

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.