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 10/15/2026 at 04:27 PM, included in the fingerprint of 10/15/2026.

Pick: #1014556Paid
Tipster: Cultu_ (@Cultu_)
Selection: Hidden: this is an unsettled paid pick. The fingerprint stores its hash; it can be checked once it settles.
Fingerprint of 10/15/2026: 2a6bad2b 9af42bfe f7042298 e11f9bc5 5791d8fa 20ea6675 58bef18a bcc0859c
Pick leaf: ca1c16d7 163c63d1 2cb89634 56ab676d 33e49668 92814b89 7c9390e6 55faa8c2Position 289 of 526
Bitcoin seal: Anchored in Bitcoin block 971630. Download the .ots

Inclusion proof (10 steps)

1. right c14cdfc3b087f9188e6bf904646a0322277ea0c42957f09508052cc22165c9ff
2. right d3a671b5ab80e8263d24e33622cd0821686e242bfe94a837e99b17407b3e13fc
3. right 1825c27aaad593af2b769a48538ffe2284306ea98704ef58d168e2c20f2af2fa
4. right 5d84200a47bbac33b0027db573636d385ce1d26b18f79f03e6d845867ee7a952
5. right 32ecea2b4937c2b7239d87bbc2622cf12efa8a1db9b44e4212bddc0d5be8bb8b
6. left 507db57301b9acebc04a1704bc6085be533178ba3a55d055201f672c28f7d354
7. right 09cecebd3b2948b58b963d180c62d25ddcace1e1249209cc640bda7f5db1da5c
8. right 9ad6986de3631ec80d6d0a3798e57c6f3344d0ec234b91fc7bf1fb5aff5bbd0a
9. left 4a684c777ef9c5d2637161fc29cb39d0250ade0a4e686de1348bb611a3a776cc
10. right 24fee3acccee70d6f9ba44ac3b9806b850b7df68ae077fba0952dbb605e1456d

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.