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 10/27/2026 at 02:38 PM, included in the fingerprint of 10/27/2026.

Pick: #1021824Paid
Tipster: Pickezz (@Pickezz)
Event: K. Khachanov vs C. Alcaraz + F. Balshaw vs U. Blanchet
Selection: Gana C. Alcaraz + Gana F. Balshaw · @1.98 · stake 4.5
Fingerprint of 10/27/2026: 53dbebf7 237fae83 017c3d59 f752136a 56966e22 f1d25c7d 2d5cda3d 0597d251
Pick leaf: 96e98b30 90f1a0db 6f9b75e2 8724983d ae1b8e50 a39a3329 2a65b943 0f5563b8Position 267 of 554
Bitcoin seal: Anchored in Bitcoin block 973472. Download the .ots

Inclusion proof (10 steps)

1. right 578b30f5cbc5b53dbb5c8631227616b85ca744330dde865f04e6ef23f031934d
2. left 29bfb5fc6c606fae5d846a7472f7ec36efdef0335587f4f742dd7c8d6346472f
3. right 9d39efb6d635781fd95d51182e25f9a00d4968b5721bbe99ed2fe6b4a083936e
4. left b66475d2eb82d0dc391150a7002c783a13cfe4ce32ecc51c37e418ed6b2a5aca
5. right e8373fd8e53869869937658125f7e191cb2d9ac079764883afbb4933ceb62bc5
6. right 82090e8213c55d58ba21d395c2ae9c294a8597377202d2d63132332f3a2209cc
7. right c185b39a7dfddf8948c3224a326b2f6912910ad82c63dbf9532edaf990329c2d
8. right 7270114a61629d319f0676e9c34be0a393c63c939288db600135964d47849de2
9. left a824855ff445ce3ede74ff70a2223d6d3e10f6d9b1d123ecb748568353b0b773
10. right 7843ff75b6a4f2f479be92e2eab0cc493ca6646a48f6bebc9f64e4a49be02100

Recorded content:

["tipsterland-huella-pick",1,1021824,25782,"2026-10-27T13:38:06Z","K. Khachanov vs C. Alcaraz + F. Balshaw vs U. Blanchet","2026-10-27T14:20:00Z","sha256:0c56affe039c249c792ba3b68ed9f64f5da57c7a30130d845b9ede1e76db1fef","1.98","4.5"]

Selection nonce: 769628967e524f6d9e11d2f22354dd92

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.