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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455fd2a00676b28c2e76f2f312b1359fd62d275f2ea400dfdb484042f119fb82. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/11c404b0-ad28-45af-be9a-1717f5f81a6b.json and https://artists.proofprofile.net/proofs/artist/11c404b0-ad28-45af-be9a-1717f5f81a6b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ZODIAC CORE: OPTIMIZED EMOTIONAL STABILITY CONSTRUCT
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4fee1fe9971d491fc6ba2f451f77077106cace3b97795992f2d659c2c9de534. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZHN52317524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f3104936cf1d584d0e118519e6efa0c3855c1d9fb559915777658473af9244. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZPEW2400350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90e7bdcbcf3f906eeafa5cd490938eac4c6e4d4ffc9f51bae9861cd78076de1. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QZPEW2493189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1105916998cee7924b51fc788c06aa310c0893e6af47fa1e96f2443f4b7bad1. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZK6N2512279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d62d289ecdcc636676c8e1bde940130d2d0e40c49d70321431add5fe8da3fb8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZWFH2513332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdde39341ac0f2c94c8a40debcbbd4744f95e94a6ee229aab8dfea51c4ee8b33. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/QZWFH2513333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f90d7b5475bbde24f51f250579fbe0539329858af3d4038f118a3acbd184ac. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZWFH2513334.
Hardcore Will Never Die, and Neither WIll You
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78e37dc0d9bd7c4ba3cbb62d339a6dd15caa176e31e876fc6a1ecbfc3caa518. 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/QZWDE2314092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a093d6d4425bc51e8728fc869cd4531f114816f75d2ad46fe88faba5217400. 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/USYBL2302013.