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 0xca696aedbd6fd4023d236f4eba29cd29e2079eddf73f41328f8738bfef820cbb. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e258ccd-bc71-4b2d-a095-523ab8067e9f.json and https://artists.proofprofile.net/proofs/artist/2e258ccd-bc71-4b2d-a095-523ab8067e9f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Singing Insects: Study with Nature's Chill Sounds
Soothing Sleep Symphony: Aquatic Harmony
Harmonic Baby Thunder Beats: Musical Infants
Raindrop Serenity Rhythms: Relaxing Rainfall Bliss Harmony
Melodic Feline Retreat: Raindrop Serenity
Tranquil Binaural Nature: Birds and Rain for Serenity
Natural Relaxation: Music and Sounds for Sleep
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 0xbe4d9a3d8995f32fc51a25bb7c5dea1c511cc110a8aa3140b7a9acee73ac2953. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEXO42431880.