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 0x5d19d979f07da45c2f973c75974a0f62821e4e2c164f7dc01205a62a56235c26. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/968edc36-8ac8-4cc4-b52f-83c7b8928ac2.json and https://artists.proofprofile.net/proofs/artist/968edc36-8ac8-4cc4-b52f-83c7b8928ac2.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 0xe8ef15dce5334eb32e6bd1c8ed3f9fb3d02fd9369ae90e311958c010a77a6581. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T14:59:34Z), 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/SE3GO1903301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365421efbcee0ab49b9f82d16297bc6302fb1ccd1a6c49edb8b1e71d2744a934. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:36:47Z), 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/SE3GO1906401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8ab38d85e1c8ba6537bbaa71324a6f301f6486b787f064172ad4bf2d06e7a8. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/SE3GO1910901.
Post Malone (feat. RANI) - Alex Fosse Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1640e0409ae13cc3ba13ee9110bc5c04893bb3a7b960dff03bf8ddc86f6977ea. 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/NLZ541901330.
Post Malone (feat. RANI) [Alex Fosse Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1640e0409ae13cc3ba13ee9110bc5c04893bb3a7b960dff03bf8ddc86f6977ea. 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/NLZ541901330.