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 0xf3fd7479aebee03fbe4eeec4ab96cd40b178368680cc18b3bebe5f783dd25e9c. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cc3d870f-5b6c-4917-9846-f47f9b728879.json and https://artists.proofprofile.net/proofs/artist/cc3d870f-5b6c-4917-9846-f47f9b728879.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Meditation VI (Rework by Lennart Heyndels)
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 0x42912ea250074b71e761014ddebe45865b7e39dfea0c9bf9b9c71565dd74d2c0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BEA952526601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc555107d6482a1b4442f95c0fde4778afffea7e26beceb9523abb2fb17c8da3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BEA952526602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245f76ac09057a6ab45db82d83281e8d4e6a8a8add3da7a6085607758fab3775. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BEA952526603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7c00b26c9be6e90ca6885bbbc519a77b14bfc69256621de3027da2e504aed8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BEA952526604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec663594f1e7c8a37a956f51233679544d8656ff64f7bb1c6857558067c84a8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BEA952526605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe8a16482b71732483af035c3a4073ad3aa0ed1ed7622d7bc284f8bd53703ff. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BEA952526606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488e3355e55e8ff18b73ad3428e2bf8e5a016256f4aa053148693750398a2524. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BEA952526607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8458cb4c7b2b43debce15fc48092cf4929ca9b0a0acb26c79cb4119d592694fd. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BEA952526608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb48c8f64e6d4ecb97f95c2a5bab5c1017ebb75eeb229c926e0e3aad9cdd85e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BEA952526609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9e3268a22a8edac04399b89b7b5e87f7a70f303fbe84d8b340ca52da9ff002. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BEA952526610.