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 0x3ddc52308d1cb0a9317554bc60a529295e878511f9b2755f2d59d7178f5f6c68. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/da702073-1e1e-4331-a045-e8b34fc87e97.json and https://artists.proofprofile.net/proofs/artist/da702073-1e1e-4331-a045-e8b34fc87e97.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 0xa232636807e34e11c369d1709d14ca9340a1d11dad717c845a5596d9eafd1287. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/SE5BU2453320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02af0dc2502bb0e5c62a4f064bca1ab50c84838758fd26373b99ff5944e7d13d. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/SE6HN2436279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f541b2137989f4128bc2ac38ebbb353b5cf562b12469c20986094a40ae97300. 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/SE5752475125.
Hay corazones sentenciados a vivir en una rutina de fracasos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7f2d3455c61c077146080e504a96ef9931bb6c3ec0e707f99c2604f3b6d24d. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:46:59Z), 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/SE6HN2438358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa691e0deb897437cbae5d135886604c27108eaa791d25fae5c24acde52b421a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/SE6HN2446346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d408427373bcf834390074f5f3fb44c29fb6940e7c664935f73f5e4e6a858b8. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:56:58Z), 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/SE6I32440180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007d951aaa63086591464ac3d8d789ce03f26764583757df8ec09558c1c3dea2. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/SE6QE2474769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b80163e7f8a2f0ca1c6462557ff2bf4e42fd44244b15f08d0231c8743c9ad92. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/SE6XY2580266.