{"copyright_id":"0x1ba0a45e66dbe5dd6b4a9d2b31f6cec3e7e887eb005c1287ad50e60bbebd5e42","name":"Kamarikuoro Sofia Magdalena","registered_at":"2026-06-17T15:30:07Z","symbol":"NIM1438851","token_address":"0x9603744e512e7c73d75069b200aca19e71b841ef","type":"artist","uuid":"8efa6bcf-a0cc-41bd-b926-948ff15cae8e"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x1ba0a45e66dbe5dd6b4a9d2b31f6cec3e7e887eb005c1287ad50e60bbebd5e42. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8efa6bcf-a0cc-41bd-b926-948ff15cae8e.json and https://artists.proofprofile.net/proofs/artist/8efa6bcf-a0cc-41bd-b926-948ff15cae8e.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 → block OTSBitcoinBlock must exist at that height 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 0x6d86d91263a5386ff958ec654b8cb5dfe85cf7ac25d4037fccb888f8b518cded. 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/FIS2M1400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65afdb8ce54da99a0d9c18d119f15ad297df915a096f888c441495b8a7af98c. 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/FIS2M1400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff39a50fc72c2618a7c9425bc3c78e6f3ea676df62f7a574099e17d78f878789. 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/FIS2M1400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09b679069b311ed4d18e246bd607129d526f0c598fcacc0c7ca37e54f34d8ce. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/FIS2M1400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e23c224524b4765192f60c81ad72e8563f4e9c337d144382a16b8bc5a6e77ca. 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/FIS2M1400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa435f5534dc2285e63c8055501f16e1bd5e721765b68052de4bcbdffb047de. 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/FIS2M1400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0c1c33418b2a0ce9621dea8b3042f798722bd68eb50e166291745ca069f997. 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/FIS2M0800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a58b5f2327cd6f495aee876c5e3aa20293d97b86cb222bc40de61a7d92bb507. 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/FIS2M0800005.