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 0x3240bf888b6d1485eb6594e6a8f9e2e33242343b422f3fa43b7f7ee26925cf91. 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/83bf7d02-a950-4630-a244-07359c54c6e5.json and https://artists.proofprofile.net/proofs/artist/83bf7d02-a950-4630-a244-07359c54c6e5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Intensitat - In-Ten-Suh-Teyt - The State or Quality of Being Overly Intense
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 0x26a316ea1a32cfedae266a218212a9fb160d62a9ca0c5ecd067470f11d939bc7. 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/US4R31215771.
INTENSITAT - in-ten-suh-teyt (The State or Quality of Being Overly Intense)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a316ea1a32cfedae266a218212a9fb160d62a9ca0c5ecd067470f11d939bc7. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/US4R31215771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f42b2cfefd7967e9e788316e1738a53389cfa3fdefe67bfee5258516116b9fc. 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/US4R31215783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075f5dccc040c782d49ffe6b43eb268e354846288c6df0490a191cb6a2a6139c. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/US3DF1502487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d796d34ad595d2d579a80f98fddfb6cd6139a00880c07a0c78d866bad5bceb. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/US3DF1502493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2cd57c158ec269d844e722b65c531271f501375b09fae2a16f75562f10e6d5. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/QM2ZU1613937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0674d6f00d45a852cf87a08d9811c501daad879ffabdfdf19f4f27658bc43d52. 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/QM2ZU1702426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b4736772cfd75b18d0476c547f3411dd5526fbd266c1af7b0a3c570dd543f4. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/QM2ZU1803225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b4736772cfd75b18d0476c547f3411dd5526fbd266c1af7b0a3c570dd543f4. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QM2ZU1803225.