1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331dcfc07db2023fcc0a9b7074a060d000ef28644aa68211b7c9de90ca282536. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c1aa327c-9964-4ea1-b2c2-e85d6fcfee87.json and https://artists.proofprofile.net/proofs/artist/c1aa327c-9964-4ea1-b2c2-e85d6fcfee87.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The O'Carolan Book - 15 Pieces for Flute (Violin) and Piano
Squire Wood’s Lamentation on the Refusal of his Halfpence
Squire Wood’s Lamentation on the Refusal of his Halfpence - Play Along
Carolan's Quarrel with the Landlady - Play Along
Lament for Terence MacDonough - Play Along
O´Carolan´s Welcome (Musik des blinden irischen Harfenspielers Turlough O´Carolan, 1670 - 1738)
Planxty Hugh O´Donnell / George Brabazon
Kean O´Hara / Lament for Terence Mac Donough
O´Carolan´s Receipt for Drinking Whiskey
Mrs. Anne Mc Dermott Roe / O´Carolan´s Farewell to Music
The Irish Violin Book - 20 Famous Tunes from Ireland
You'll Never Deceive Me Again - Play Along
The Irish Flute Book - 20 Famous Tunes from Ireland
Rock & Pop Classics For Low-G-Ukulele - 30 Hits And Oldies Arranged In Melody-Chord-Style
Rock & Pop Classics For Low-G-Ukulele - 30 Hits And Oldies Arranged In Melody-Chord-Style For Ukulele In Low G-Tuning