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 0xf68ce3690d01cd74f300f499ebbebe78cd1e4d1726804a239ea376dfb7ff1eb0. Chain 2 (Bitcoin): anchored in block 954015 (2026-06-16T22:55:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/35386060-b4ef-43c1-8b30-8d719e7de450.json and https://artists.proofprofile.net/proofs/artist/35386060-b4ef-43c1-8b30-8d719e7de450.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Most Beautiful Tangos, Boleros And Biguines (Les Plus Beaux Tangos, Boleros Et Biguines)
Chanson Douce (Le Loup, La Biche Et Le Chevalier)
The Most Beautiful Tangos And Pasos Vol. 2 (Les Plus Beaux Tangos Et Pasos Vol. 2)
The Most Beautiful Tangos And Pasos Vol. 1 (Les Plus Beaux Tangos Et Pasos Vol. 1)
The Most Beautiful Tangos And Boleros (Les Plus Beaux Tangos et Boléros)
The Most Beautiful Boleros And Pasos Vol. 2 (Les Plus Beaux Boléros Et Pasos Vol. 2)
Cerisiers Roses & Pommiers Blancs (Boléro)
Le Loup, LA Biche Et Le Chevalier (Boléro)
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 0xe2f888d7b1833e719f3f5657fa58ae1d41d7c57ab5df4e963087373e5165540d. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FRY510779318.
The Most Beautiful Boleros And Pasos Vol. 1 (Les Plus Beaux Boléros Et Pasos Vol. 1)