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 0xa51aef6b24f964bdef6f067bb0eda634ec1769f3f2c79d530956ae31a16ecc23. Chain 2 (Bitcoin): anchored in block 953602 (2026-06-14T06:58:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f0089d1-5008-413d-b229-5ec6c38cf935.json and https://artists.proofprofile.net/proofs/artist/0f0089d1-5008-413d-b229-5ec6c38cf935.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Higher Education (Electronic Dance Music)
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 0x88fa37726a3052895521e18687b8af82b3cdde867356f407e6350f7043b29263. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZMER2115875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d50e08541ea8e6615a60760136f072c689a986eea0fbeafc37c6c41dfb46786. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZK6G2276028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83662c8485368740ebf9bcb11977f1979fef589c2856332fd7346148fe91ff9. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:23:20Z), 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/QZMEP2270597.
Perfect Heaven SUPER DELUXE (Commentary)
Truck (Live at Classic City Vintage Guitars)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c3bb104dbbb6a37e7224f11f5cef84df9529b2cad992f3376697bf4f9cc760. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZTB72364992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201d4427c8ec05985745345af1b57f246e56c33ccc38dda4fa989de4982d996e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZHN42321048.
Super Bowl LXIX SUPER DELUXE (Commentary)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866f0a9092afc714dee2fb7e520901e9255efab28664eb9995ac637dfe3ffd21. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZZ782592880.