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 0x9a4d4b42f6dd5813f8af208a5485c5e7642e9c814211cae64d5f08a6f500647f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1db5d058-a1f6-4c00-a65d-157684d8520d.json and https://artists.proofprofile.net/proofs/artist/1db5d058-a1f6-4c00-a65d-157684d8520d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Shut the Place Down (The Remixes Part II)
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 0xfa6e4385b0d5a4efb0765d2a96c71d0d8475b399206303d9d5ae10e6e6d75ea8. 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/NLZ541300628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c13110d113a65acf8add0e5248d36e95e75448b12e0454abec4f35a9e48247. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NLWV71400095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f30e290ec84de13ded1d90e57fa46f663994473ad0423df51f26dd226c11703. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:19:45Z), 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/NLZ541501080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028fa5a8d647e821db8112e8954bb1448ca4fefb3f54eae4c2c14397564f8382. 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/NLF711604486.
Bad Blood - Mike Hawkins Afterhours Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ea902d06784a2d4237523afa87c3d0bab15a4acecfdafb7f13641bb1dc407f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLF711705332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e7374da3c116cb5853ae41b104b04cc4c5965206e78f16f38cadc2387be9a0. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/NLF711800418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de3cac27b2491e5455d1623264e3617cfc504d83f53ea92fd20ea1e6acf1883. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/QM24S1813098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d83d3d0589f1f180641e1d4e650ce380555f69ac60bdc1573f7d50f29d7483. 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/NLZ541900047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae24d28fde3bb3dda53637d5b4e6f915ed3057dc1913cfcef347fd89021f215. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLF711802678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47637b371cc49186a6b1cc71555ae28e7999e9e06a7b33764074e479fa3697db. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLF711802679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae24d28fde3bb3dda53637d5b4e6f915ed3057dc1913cfcef347fd89021f215. 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/NLF711802678.