1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x0644b4df313a6441b4590e01cf392f5ee9e127436cb03b7cd61ffa12700685f9. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/23ade000-ced2-4985-b7f4-59d2d94e4276.json and https://artists.proofprofile.net/proofs/artist/23ade000-ced2-4985-b7f4-59d2d94e4276.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Two Dances: 1. Sarabande - 2020 Remaster
Sistrum - DJ Spooky Grapheme Mix / 2019 Remaster
Sistrum - Single Cell Orchestra Nicotine Beat Mix / 2019 Remaster
The Other Side of Midnight - Original Version
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 → block OTSBitcoinBlock must exist at that height 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 0x14ba7025d1cb2f9deaccd3f33175347ee0f47b6a9edd7efd7b31b4492b1089a9. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QM6MZ2520024.
Century XXI USA (Electronics, Electricacoustic)