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 0x510ca108f558ca97c151206dc531dd807f7b99b9a008ed0360f351e0ee106344. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db53c032-fc4c-4e82-ab6e-d9a5e2d2e61f.json and https://artists.proofprofile.net/proofs/artist/db53c032-fc4c-4e82-ab6e-d9a5e2d2e61f.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 0x91cc61e0a79b91fd79c464fe9db99532b1607cb368c30d4d21306c9fa84224d9. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/ES50A1500027.
I'm Naked (Marq Aurel & Rayman Rave Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5b4e8aff62be0b3d4f2e6aab51d4f3b535227f6fa2a5f3d164341df4c6e7d9. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ES50A2000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d601aebe8df7d25f85929d947bf951e8cad7b84622a1d738527b03888e70d7. 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/ES50A2000664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eba6fc2ec1f364a2b3fd7943df9d542a5d42b5c21dd3672741582dc6ba5ac81. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:03:10Z), 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/ES50A2200606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5e66b142b816eb32b3717b4cf9e7f64d954f1ef62933c9b75bd304dca39854. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ES50A2200925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae77f13d7a83e6dd06ff6eadea9c70f8cfc36b707ef3bf2e6bb048b333451856. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/ES50A2300084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea9a942781c555c86409be0d9ea6383e30b6b65c60fe853c37c1298d66d0ce8. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:02:43Z), 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/ES50A2300224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23f7c4b0ce1b23b223f26e9c7da5c2a72131d7e94c48d3708f3b39b0b096a60. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ES50A2400345.