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 0xc71b04f0d40b9bfce83b602bde2f54ade15285bc0f6b69b5e6c6ea051897fbbf. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ccd0e3b-ec16-4c5a-8972-22ae32ea71ad.json and https://artists.proofprofile.net/proofs/artist/6ccd0e3b-ec16-4c5a-8972-22ae32ea71ad.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 0x2820ca7cdf53456f6b5c77c0a68573d989024947c85efac331af5799295c28c7. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/RUC111702162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285477cd8453025003ef1313b071ce8ef5c62d532b908998a56dacca8d14a715. 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/RUC111703162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02fca86144c84cbcd30ae4d41daee8c15e8c30c6504a3b18ff0d1e20696581c. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/RUC111704162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174023940930f9458fefd68aa70346b7122edde8d7da3478932b1b0b9859cf66. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/RUC111705162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ca3736d9e7d48e6626e3537f1ba521fe236f23d42b0a5bcbe449ba0472bbf1. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/RUC111706162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14328e625249e15cb769b5b869dfee988bc03e26a1d4013b22b9d2dedfdf0ceb. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/RUC111707162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766cdc80ebb9c30ae110dc4a910da4529abb31bd5cf6144aa2ff3e586fe8eaa6. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:22:12Z), 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/RUC111716162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bbc17e0c089d5c9c7be9490cccaa45b8c801522feeab19a95ba8b6d94629619. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/RUC111719162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f219713319d0f5973c1dac142ffe5734412ebd47e3fe1f96da37705b6077de. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/RUC111721162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce1db1754b187fff06234de11261d2cf6f44a1a95ebd87b252b6d2649974e4e. 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/GX38U2224100.
Drink Up Me Hearties Yo Ho (From "Pirates of the Caribbean: At World's End")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde10976dd7ffec0689b898e5491099548bc874fdee6e36552a56a5157ef78382. 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/TCAGO2213987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8016f90983b0ce595147a67443a30aa21f23b3c0fe4fd9ff2e88b0807e48a9e2. 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/TCAGO2213990.