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 0x527b447dd4eb3dad6a3d2310aa3bc00bc91448b02c5da0968b461db5abf48362. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ed04734-d3bb-4e62-8ef4-db447540b417.json and https://artists.proofprofile.net/proofs/artist/6ed04734-d3bb-4e62-8ef4-db447540b417.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x1c61f245f38e5c76c6abfac45c03e4677fe93cb8cf55654e0c76bd14c9479afd. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/TCAEZ2015310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba1f62b7e479262aaa829b157e8fa3c0481669f99fa78b6aa5ef85e76aaa147. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAEZ2015311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f039b1264044bf7f7a89802c7b5cee0a952a27eb9f31e02ae8604f94bfd12c. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:32:10Z), 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/TCAEZ2015313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca98ce17392cc37f7b9a8a5019f0e0b478c1426aedcbe4a3a1086e55e08b367. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCAEZ2015319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0da34847a37844d3f70a01a0b01e88bbdd24dd0c8380f4bd1f4671381da9595f. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:48:30Z), 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/TCAEZ2015322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7514eac1dcbd50e929704a5095241b26e40ae1d25a766329a532241275211049. 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/TCAEZ2022626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede1cf3313118d35455706375539cf561cb93a37cb3eee5a8c29597ecc087106. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCAGL2266219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa418e93cd5c1f4d03baeb16355a69e61ddf046543dcf689ef7349b323653ce58. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCAGP2274881.
Matimoni Mu-Social Media (Demons on Social Media)