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 0xc082fbf08ff5f71eedb29560ca5439cdd4b29b684e9678581833d5b55c598fdc. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/81ea2977-27e8-4408-aebb-e28b2dae8908.json and https://artists.proofprofile.net/proofs/artist/81ea2977-27e8-4408-aebb-e28b2dae8908.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Diabolica Perversione del Rock'n'roll
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 0xfa45c0357bcdd852a7d8a0b5dc4a24fefc10c10a6c25a714f9763ecd5ce50fd1. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/GBSMU4274995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3a8b28a60aa6aaf574eebf87ce8fb5b0f1ca4a484c2699b7d1d121f4711c1e. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:09:06Z), 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/GBSMU4270967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca08e1978c9e988580e022f72d9573148ec20b14eb8031541e3a80b149bb153a. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/GBSMU4264604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77554b1913bec3127f80e2f27424bbe8e85b1d287ec5c18f2491a13d87167115. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:07:17Z), 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/GBSMU4264608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98d2ebe57afe9f56842490d674df9e3206285ccdee5a2a8f47c1d74dba17479. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:49:09Z), 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/GBSMU4264615.
Nessuno Mi Ha Invitato A Questo Party E Non Capisco Perchè