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 0x257b40a8e7ad81394eaccbd900496b5bebbd3c6660d399af86514f28324baac6. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e64c0a87-183a-41e9-b35d-260f40f2a654.json and https://artists.proofprofile.net/proofs/artist/e64c0a87-183a-41e9-b35d-260f40f2a654.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chill Music for Night Drives: City Lights
Meditation Harmonies: Music for Mindful Reflection
Soothing Sounds for Pets: Music for Calm
Binaural Birds: Relaxing Nature Sounds for Stress Relief
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 0xef9d5f35e1a5ae6bb1b834df276dd945eb8c3a7c90c29db71c3c35f3b104c2a0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USCGJ1433110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e116fbf43c460b033e832069e43ca15b0934e809b82c1f3ee360b85401c339c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USCGJ1433114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51aba816bc3ce799494272e97cb0aa206397ac1b27fb00dd763dcef70376e01a. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USCGJ1433115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7627fee1abb90cea1980349d1e612777ed04c803b5ac63f36de0f26c653e9623. 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/USCGJ1446156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf019c015dd75d70222565fbb4861ffd4e4ca43ccd96dfd119a53c3ecc3d903f2. 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/USCGJ1446163.