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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373fc3d6e7207b5c14c7b5dd535323c35221064f3f3c27dff0c42ef94f11c9ae. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b38a5ae5-601d-40e3-9afc-76d62fb46de2.json and https://artists.proofprofile.net/proofs/artist/b38a5ae5-601d-40e3-9afc-76d62fb46de2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nighttime Comfort: Cozy Outdoor Melodies
Fire's Relaxation Sounds: Calm Flame Ambiance
Tranquil River Chill: Water Sounds for Relaxation
Binaural Birds Meditation: Serene Sounds for Focus
Deep Focus Harmony: Chill Music for Meditation
Gentle Vibes for Relaxation: Soothing Music
Nighttime's Quiet Solace: Sleep's Gentle Hold
Soft Massage Tunes: Gentle Music for Relaxation
Serene Nights: Tranquil Sounds for Restful Sleep
Zen Melodies: Meditative Music Experience
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18be5df748499b8c378515cce4d15f5db304bfbfad8f74f4bbe09913cea77dc9. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QZTV32423353.