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 0xaa4a29aad380d3d3b76dd0742c1ea48a35d5f2a7aa6f1ae29f42c561be4a405f. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9faa5035-4bc5-4d70-92fc-268177a4153f.json and https://artists.proofprofile.net/proofs/artist/9faa5035-4bc5-4d70-92fc-268177a4153f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tranquil Cat Keys: Reflective Piano Melodies for Kitty Contentment
Baby's Serene Symphony: Peaceful Piano Melodies
Feline Harmony: Ambient Chill Music for Cats
Pet Pathways: Piano's Serene Chronicles in Melodic Harmony
Serenity's Pet Melodies: Tranquil Piano Whispers
Melodic Harmony Reflections: Piano's Ethereal Serenades
Harmonious Piano Paws: Serenades for Beloved Pets
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 0xdda08718c30242552c5dfcee296f87366875807a9a458c1a3e91ffd1ee4b7335. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:40:50Z), 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/QZWDE2336126.
Piano Harmony: Melodic Echoes of the Natural World