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 0x58cc9771d26fe597a1581a28730c4e80be8e85456014d3c2b22c7499ecd108a2. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c70a2857-9b97-4bed-9e1e-e926a948925a.json and https://artists.proofprofile.net/proofs/artist/c70a2857-9b97-4bed-9e1e-e926a948925a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x8d5d863edd06c9c4c6502a01cb63969bd7a401e354d29cc56065ed7d977bce7d. 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/QM6XS2102198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec2a52a7fa7bce97658d29eb1c324fa74085a01ff78d82ac98c1e137e11fdbe. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:03:29Z), 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/QM6XS2102201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a96547733d5192bc0eef6d69a201b2e74ac9cae998e78a677c752d14b975891. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QM6XS2102203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6250378dd68c581722d236d465b0773c58cce2e0bf2786dfb864eb7f411455b9. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QM6XS2102208.
The Passion of Covers - a Tribute to Bauhaus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd434440580c7ec65b7f2050c54c802f583d421e0a0b7990fc3768ac518af0fc8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USA560897735.
Candle Lounge, Vol. 3 (Compiled & Mixed by Henri Kohn)