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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda91d0b49ff2ad643dd7fc0900e649a279403d642178576fb1c0c0beba0d808a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9be8dca-8511-425a-9edc-2e90d2cc3a90.json and https://artists.proofprofile.net/proofs/artist/f9be8dca-8511-425a-9edc-2e90d2cc3a90.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed84297a2d943228e1a6aca37a7cdaaf29caf065e62f40ff4481ebbb0b1c1a9. 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/FRDKW2316399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78fd8430b70a2414bb70c1c65cb0ab5475aece316762088213c275a0539c3c2. 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/FRDKW2313144.
SARA PERCHE TI AMO (EDM Edit John Alenca)
Pjanoo & Capoeira (Zum Zum Zum) [Edit Rmix John Alenca]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1fd673a54f85fb11c712f4634b2293fb9686777fca610186bbd9c0eccaff427. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/FRDKW2316387.
Careless Satisfaction (Edit John Alenca)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02af1031ee3ccf228521d5a5ee61ef91c63e49245cd04b95efe832999edc9d58. 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/FXR752302237.
Electro Venise 2024 VIP (Edit John Alenca)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f48bc0b94a6eb68c3098026bfa3d6e67b352aec9b24fbea925d8c3a520ee49. 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/TCAJY2582492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa0e985b0fa4450e3592fb7f75281b6a710592a1734ac94ce259def8b7a44cc. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/TCAJY2582498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8daf2f8502795c24122a2f77b3333ba53525734ee12293990b6016b3580864. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAJY2582531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35a8c7b7e43fe8c7c9967f188d30eb22b1df8a7681c3fcdbd22ef1fa70546ac. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/TCAJY2582537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020ea443f24d66583017c91c1e93c446a67ed33d5db5c59b2977d9da1bad0746. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAKB2527885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade3d2ea82e18746faec88c7754ab3e490293ef40e66a7bd694f14293b44e9cb. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCAJX2563831.