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 0x5322c1e4a2646e116b47cfaaeb34ff3142ee6da1c4659062e17504c4a9bcf177. 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/07634332-9a5c-4833-addc-e5ba5d92a871.json and https://artists.proofprofile.net/proofs/artist/07634332-9a5c-4833-addc-e5ba5d92a871.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Moonwalk Street (Deluxe Version) - 77 Estonian Hits
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 0xbf8f6fd9c1cbabe3443f2cbdb7f4b2fd5ae1465c4067065f4d08dc2537d72d22. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/EECF19500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe408439f2e51895eb1f99754dde1e2e702e6fc475aa4de35576ec76499b4bbf7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/EECF10700777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12cfd3cecfd7414e4924ad096f124a592cf147bb74a16787df8dfef28ca9e1b0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/EECF10700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f98770d490da4564fbfd65b8fb838600861d6375855fc839372b211b56fe23. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/EECF10700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858f0f26da45ca15cf869f7e8a6fe9568e03404be675b74828e4d57c8ddd2445. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/EECF10700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22407d802fd350d5d0eafa8a9554f62ab14e7556e64aad9b059bc5dde47c5de. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/EECF19500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9cce16bc5ca29adccd4640dc468cbd118c1a2c1f1eca1e2f7eb45ca62d00f8b. 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/EECF19502211.