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 0x125ad785a95cc7785d5a3dc2f864701f588ec544dc9b062bcfb931ee917d73ba. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b55230d9-bfc7-4700-a5a0-ebb9fb7fbac5.json and https://artists.proofprofile.net/proofs/artist/b55230d9-bfc7-4700-a5a0-ebb9fb7fbac5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gathering Sorcery to the Eternal Portals of the Past, Pt. 1
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 0xa1f9979dcb4f83aa492f76d5178866411bf6da993c3bb303eef8bd40fcaf5931. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:47:31Z), 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/QZHN62299246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213f7f5fd95e3eebe691c3e45e5b617a2c5986fcb8c80c833ab22055b18016d0. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZHN62299247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73090ae9e494894bff0878355edc9ddfe790ce2ffecc323d801803bd3b5e6889. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZHN62299248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04074625f6648caa750d38864d4d12d28bbeecc3a9df1c16bb4ba2ad502e866. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T19:04:14Z), 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/QZHN62299250.