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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37761d96c25bb320f78f765d0223934bc5921939d448678d986483d619a86ff6. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/057d2ee7-46f8-43c7-874e-c1d45ea4a20f.json and https://artists.proofprofile.net/proofs/artist/057d2ee7-46f8-43c7-874e-c1d45ea4a20f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sonnet No. 18: III. Shall I Compare Thee to a Summer's Day?
Much Ado About Nothing: Sigh No More, Ladies
Lauluja merelta, Op. 33: Ala tuule tytto tuuli
Lauluja merelta, Op. 33: Em mina merytta kiita
Sommarpsalm "en vänlig grönskas rika dräkt"
Sommarpsalm "En vänlig grönskas rika dräkt"
Land of the Silver Birch (arr. P. Paalanen and O. Pohjola)
Pita le mome vashite (arr. L. Seymenski and E. Risinger)
Himlen hänger stjärnsvart (Arr. G. Haulin & H. Stureborg)
Stjärngossarnas visa (Arr. A. Bergendahl)
A Ceremony of Carols, Op. 28: No. 10, Deo gracias!
A Ceremony of Carols, Op. 28: No. 4b, Balulalow
A Ceremony of Carols, Op. 28: No. 3, There Is No Rose
A Ceremony of Carols, Op. 28: No. 6, This Little Babe
Det är en ros utsprungen (Arr. H. Distler)
5 Christmas Songs, Op. 1: No. 4, Julvisa (Arr. T. Jönsson)