{"copyright_id":"0xb2cd15bd5da6ca19d678c39cb53fcf56ede3e0820e5f48f87a160fdafd9a69ff","name":"Dan Ferreira - O rei do baile","registered_at":"2026-06-11T19:14:51Z","symbol":"NIM0096903","token_address":"0x605a8ea8a92ef9cb3f3a5602cafe0b02ebeed4ef","type":"artist","uuid":"4a24f9df-9ef8-4ae5-a457-51b46204eec0"}
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 0xb2cd15bd5da6ca19d678c39cb53fcf56ede3e0820e5f48f87a160fdafd9a69ff. 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/4a24f9df-9ef8-4ae5-a457-51b46204eec0.json and https://artists.proofprofile.net/proofs/artist/4a24f9df-9ef8-4ae5-a457-51b46204eec0.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 0xc981488fac3d0af71cc32a6a9a629cea82fe82ce956b5071fd22ff7212324086. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZGLM2389101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044968e6d9b091d958fde1ac012207f4c912b3829019832c87a744c78a177a8c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZGLM2389103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f37960a1d7d32954e9dfbb2920cf46067fe42a702df2805f85c8ba007d213af. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZGLM2389104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe377da808248aea06edf73a264785f701eb638afb150d3c5bd6e34b15d4e1d51. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZNJY2300478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0faef88a167884cff84c6054c6ab029fb65033fe262ba2908a62d6f4bf05560. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BCRIZ2400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64171ae46c76cbdb35c11b224a3373d9da1be78c31d99d53f2adeb75c00bd859. 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/BCRIZ2400983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7160323eafdebf6954b2f13d34869ab69f6cbd98d9e41d89d9799df4a7d18c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BCRIZ2500063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ed734b8495dc75d736be83363cd3720a25858dd796fcc2e5a8914ba3280e3b. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QMBZ92566717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c487afa583799524521ec4896df633497c8988f0814863e6aa2509e69d66f6. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/QMBZ92566718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e2353e7c1a922c748154503ecd04e4187d0fed7022cd06584dde48bdd2fcad. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMBZ92566719.