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 0x32d2321de1fbaf67bc664feb9e57c2077215b031ef104c7a116af90af9ebaea6. 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/384bec11-dcfe-45b3-9fba-1c211c599d29.json and https://artists.proofprofile.net/proofs/artist/384bec11-dcfe-45b3-9fba-1c211c599d29.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 0xdef8f31d33ad9c7e2e7b60b164c9e96ed3f7eef5840256eb501191c2115a5560. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/TCAEY2037926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c7f54661d052f271e5de375977341e7baf887f23264f9aa2259ea5d62992e8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-20T00:07:14Z), 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/TCAFB2047525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508e2c740c8d735b61703b65c800b1711782d67413fd6633c842dff57f725d2b. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZS662114981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5af7e02f9f4a5253e15266edaef55654b0e088bc8c858163b4c2bb29723046. 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/QZS652133656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245f153d832a0274f80cbfbb5230650eaf9e86e4724a407bfeea48acd99b6359. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/CAQOI2300329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3749ae953810ea9bb3f5280c014d571da52ea5bd2b921e47fed32e2d575b5c98. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CA5KR2323386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda54dc0edc88182e94ebd80a4d2c346f0260e012279ff799924587d7133e0e0c. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GX4R52183170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702addc9f60c5eedd31dcbd1900247b4e559b0e3071569133236a81627a9014d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM24S1921389.
Positions (slowed + reverb) [feat. Moistrus & Meo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6647845edde5e33b95b1923e4c324ef32abf01a0510bf8f3ba5939ed5f6e7f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZMHK2227887.