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 0x06e08658ad559a82d985eb3c5fdf50b8fd81f1f7145a88dda86daef85fe21764. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2ceb82d7-5853-410a-a462-35aa211ebdd5.json and https://artists.proofprofile.net/proofs/artist/2ceb82d7-5853-410a-a462-35aa211ebdd5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
So Focused (One Mic Session - First Take)
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 0x786d3b4d9ce63f2e5dde0cfc3d870198d56b8d61e93c01ff0b127cdeb79ded3b. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZWFH2569451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1fe807ee3fe615eb3f971ceb799f0fccbb47b4a919b128695d9e975e4b593d. 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/QZWFN2502445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd519d02943fc2dadac2d6925d2b76453f175bb45687373f214b44e89866597f. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZWFS2511061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6eca8ae32a728c8d84bc338af77962af7c77714065b4c5f05243e06e87f0242. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:47:48Z), 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/QZWFV2557460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c91e00ec8d886d3aabf9c17c6fe71bb5f550e251a3bcb64f5d9b9769c04e47. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZZ782546838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa9286fdba640a4d641b5b557c5f5d699ec077582d0f0f50f82ce7da7dd184b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QT3EY2532980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed803e27b42ece518db2658aca6d15ba3bda71f0f6ce9b42465d8f573c18f7b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QT3F42517737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346824697f1b2fd0df0191917494f3845d9ccff232f53e20a38f4503d882c078. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QT3F82518760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092970fc9bfcba3a801cb529ade0da9ec666b9399f245ef5161277f92be50884. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QT6EA2521253.