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 0xd35533d3ae803bdb19a48cf56c6cbaf80b1af25b737fa062f9af32e009d9f6a4. Chain 2 (Bitcoin): anchored in block 953819 (2026-06-15T18:31:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f97ba3e3-4be6-4bf3-a362-3e12b95b9813.json and https://artists.proofprofile.net/proofs/artist/f97ba3e3-4be6-4bf3-a362-3e12b95b9813.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 0x9bbff317f62247ca2f470bc92ed33e3c2f017caeaef8ec63955752842ba55cb3. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/BROOD1900351.
Não Há Outro + Quero Conhecer Jesus (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9925da5b3c599fa2b17cc12f3d786d3ac56237cb6e1ca34795fed1f0ad4234bb. 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/BRFDG2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a4e36d0c80776d1864b97f7f1c9b3a0bd583f9079f255d377c44fd0721d948. 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/BRFDG2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f458c5a1161894913231f91f8948a79dca70332f09612d9d1d292461ab7f1e7. 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/BRFDG2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f4b747ccf0c417834bfa62606e4e44cf715578eedf3a71575b41816b764e47. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:38:52Z), 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/BRFDG2400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9925da5b3c599fa2b17cc12f3d786d3ac56237cb6e1ca34795fed1f0ad4234bb. 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/BRFDG2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a4e36d0c80776d1864b97f7f1c9b3a0bd583f9079f255d377c44fd0721d948. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BRFDG2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f458c5a1161894913231f91f8948a79dca70332f09612d9d1d292461ab7f1e7. 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/BRFDG2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e6ac27c81d5cdbd4480003676bd08364d3732f86f5803487dcd32f3e6b9961. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:55:52Z), 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/BRFDG2400013.
Não Há Outro + Quero Conhecer Jesus - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64918f6813268200ab449cc4ce59ae65b0f38316a27a515df698dc0bea054b40. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/BRFDG2400001.