1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xe25dbf3bb67056b76031c6ee55c7058594fe139037c7da806feed4e1d96c2e0c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c92756b3-07f9-463d-b6f4-6391b2bb28cd.json and https://artists.proofprofile.net/proofs/artist/c92756b3-07f9-463d-b6f4-6391b2bb28cd.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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x216e1ba04a4929efce6bbd6e1a8b8e6e55119aefb29221608b10e264d42dabf6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCACP1601573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607944d6a1578e8ddfffe1d0bf2976258f7d8716a132265d667c3152d9690a91. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/TCACP1601575.
Somebody's Somebody (From "CAGES" Original Cast Recording)
Colour of Love (From "CAGES" Original Cast Recording)
Lighthouse (From "CAGES" Original Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0802371bd20a92a3cdc04d19f2902338a8eaa788b105b9f1463119afaa7470bd. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-21T09:05:35Z), 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/QM24S2206730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c810f483f1b84318294d8e3e2ecaaaf34495a2d11938824fa2138910f23e01. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QM24S2206723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b9a3cb02350aa5b1a8f0e10d1b53ff7ee079b6a3db5b101a75e53c53fb61ff. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QM24S2206720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a09e2c9369800d30ea3e1a55039fbdeb0b4255640d51fbb372d3dd29f873ea. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QM24S2206711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f86b71735563e79a712adc2072587645ee4ff50f9466538aa277b8bde51885. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:53:36Z), 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/QM24S2206697.