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 0xa75ab78769628126732d8493af111e14009a8a24ce07054e10fc9258181bcb05. 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/7204e046-94e7-4b86-9de7-afba68c8a7ae.json and https://artists.proofprofile.net/proofs/artist/7204e046-94e7-4b86-9de7-afba68c8a7ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pech & Schwefel (feat. Julian Reim) [Live]
Pech & Schwefel (feat. Julian Reim) - Live
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 0x477b2c9a5c2b8973410901a20e0e8cb69c48c12434e844bd76ca5c336da776db. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEA812300303.
Vater und Sohn (feat. Julian Reim) - Live
Die Höhepunkte der Arena-Konzerte - Live!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73971b20e3de2ad794c9136459ac02597df69e60a3545de49a6e044de8309996. 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/DEA812300311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x477b2c9a5c2b8973410901a20e0e8cb69c48c12434e844bd76ca5c336da776db. 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/DEA812300303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be17c1e77587e7175a5b1758542448159ce67f7a447cd4b0a686a56f78a3ab6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ES03A2100066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120ada63e799735acc404450f34b5f823972876b593c20a1bdcf3cb57d08e413. 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/DEA812200407.