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 0x7286d8bb4f6f9194af91281df6196447680046aeb9ff1ab039797a18329f7904. 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/3b14931f-26fa-4ce3-b0f9-f08ef912053e.json and https://artists.proofprofile.net/proofs/artist/3b14931f-26fa-4ce3-b0f9-f08ef912053e.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 0xfb2ac1985a4d1674e83ea0676e02f390474d131355420a5f35e478f3f2608722. 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/UK9961813322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x924e7b1aac004225d2040ffc5931b307c48741e3b844c822b149c862a032a290. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/UK9961815572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c0cc298e38de98062888e8aa667d7703a83a039fc19bf930505b068f302092. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/UK9961815591.
Solfeggio Nature (Healing of the Forest)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9467915008e351a23e519636f3766cde68e93827e1200d2b75cfddffafaf3bc0. 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/DEUD92384833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6807b2f4aba61129f67e08160131fbb588af1b1b41015cafd5f87e17b9da714f. 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/DEUD92384834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb4574793cf900909b2cdaccad83405a50ba755ff5da49104dbf51d0214c7ae. 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/DEUD92384837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0497bd7e6cf1ff944bae042afd815b62db4b1859989aa8f543c530351b7ac9. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DEUD92384842.
Nature Solfeggio (Green Healing Buddha Sounds)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4669a5e52adfa07004bbf534805d7e2e09af682660dc11d495a789c5b4065fe6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SE37J1600173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e2a38dd1490746ae45fc8b0f3634306208ef19c661dc90df2a559b559313ed. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SE37J1600170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7008cac0aede17c58ad11b29617abb39fe903b0fbe6fc667e76e12c856b7664. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE37J1600168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcadc77204d966edc360548e77d817b758a948f45699c5234b5c9654ede8d7378. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/SE37J1600172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019b6ac1266b64ccbc10ad1975732f0d2816cf2904e921522765d340622a5f27. 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/SE37J1600169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf85ac9998d4f66acbb71b7d07876530d18858f6bb2b5ead706fbd3489e3179. 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/SE37J1600171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf85ac9998d4f66acbb71b7d07876530d18858f6bb2b5ead706fbd3489e3179. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE37J1600171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e2a38dd1490746ae45fc8b0f3634306208ef19c661dc90df2a559b559313ed. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE37J1600170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4669a5e52adfa07004bbf534805d7e2e09af682660dc11d495a789c5b4065fe6. 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/SE37J1600173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019b6ac1266b64ccbc10ad1975732f0d2816cf2904e921522765d340622a5f27. 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/SE37J1600169.