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 0xdf5daaaa93c9c052d18efc3ae9e4c6569620c062c3e08dcc2258908da3a12028. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6477d86e-0f88-41b0-a183-ce35d0e5b183.json and https://artists.proofprofile.net/proofs/artist/6477d86e-0f88-41b0-a183-ce35d0e5b183.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Medley: santé santé / J'ai bien mangé j'ai bien bu
Accordéon Forever, Vol. 1: 100 titres pour les fans d'accordéon
Accordion Forever, Vol. 2: 100 Tracks for the Ultimate Accordion Fan
Accordéon Forever, Vol. 2: 100 titres pour les fans d'accordéon
Accordion Forever, Vol. 1: 100 Tracks for the Ultimate Accordion Fan
Acordeón para Siempre, Vol. 2: 100 Temas para Fanáticos del Acordeón
Akkordeon Forever, Vol. 1: 100 Titel für die Fans des Akkordeons
Akkordeon Forever, Vol. 2: 100 Titel für die Fans des Akkordeons
Acordeón para Siempre, Vol. 1: 100 Temas para Fanáticos del Acordeón
We Wish You a Merry Christmas (Accordion Version)
Musette toujours: 100 chansons pour les amoureux de l'accordéon
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2469e18ab5c7ae1e8b274ef199ef47824f0f745936cb81f9f113863bee74996c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR0W61478430.