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 0x320854a236a25a8d59e2b23c6094426529e8fc1731085092d8e968cf24ffe5a2. 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/77e8841f-a63a-4650-b2e3-daa4f6fbed6a.json and https://artists.proofprofile.net/proofs/artist/77e8841f-a63a-4650-b2e3-daa4f6fbed6a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
For Me (feat. Michelle, Ceejay & Chuchu)
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 0x066de636f068f91de42dc1caf1909c150b02eabdcd76bcea00708af6d142cc0d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZANIE2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf239cf1e8716b760dfea3cfad9d0573cd0171bbc4cb6de0981051c2b5bbb1013. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:06:41Z), 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/ZANIE2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eaadef328f9476df6bda6c3e2967623fbeb31862556d8c46b0770afb7e34588. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/ZANIE2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48738be7c408568905e4a803e6b61b0870f1a52ccf3d3f579f24d700c63c7ba. 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/ZANIE2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1321c1b8112de53927a35de201b1a2881660c1e13bf197259d30ecaa51d84f28. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/ZANIE2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15c7a30de0a65299cb6269e5f4455581e8e441c7a91d4a30dd8642ed3299128. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ZANIE2400011.
Lomfana (feat. OkanaNkosi & ThabzarDeMusiq)