thumb|right|Jormas in 1966: Raoul Wikström, Christer Bergholm, Pepe Willberg, Hasse Walli ja Kurt Mattson. Jormas was a Finnish pop band in the 1960s. They had previously appeared as the Beatmakers, b
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 0xd25072f385d03f8f7d4b08d5352dc170e48b877470a4013368c0491a545a4ff1. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1f3f9945-ed16-4e5a-ac6c-8b6c4dd0deb0.json and https://artists.proofprofile.net/proofs/artist/1f3f9945-ed16-4e5a-ac6c-8b6c4dd0deb0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Saat miehen Rööperiin (Kaikki levytykset 1965-1968)
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 0x4ab8eef403d746b5688e949e3a40b7ee4885478e15f9d42665d3deeaa1df6b5a. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:56:21Z), 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/FIEFV6700001.