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 0x240c1ab2360cdc85a5965b2194b4d72d2fc6fd234070f4a4c863fb196fde4601. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99815a8f-a183-4124-aee6-8e91257c21ae.json and https://artists.proofprofile.net/proofs/artist/99815a8f-a183-4124-aee6-8e91257c21ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
White Noise for Absolute Sleep – Reliefing Noise Pack
Soothing Rain for Background Sounds and Natural White Noise
Shipping Yard Sounds for Background Sound and White Noise
Soothing Fans and Air Conditioners for Background Sounds and White Noise
Factory Sounds for Background and White Noise
Running Water from Spouts, Spickets, and Faucets for Background Sounds and White Noise
Small Indoor Waterfalls, Rock Gardens, and other Decorative Water Features for Background Sounds
Soothing Vacuum Cleaners for Background Sounds and White Noise
White Noise for Reviewing Before Exam Day
Melodic White Noise for Meditative Relaxation
Paws and Relax: White Noise for a Calm and Happy Pet
Dreamland Drift: Serene White Noise for Sleep ASMR
अंतरिक्ष सफर: श्वेत स्वप्नों का अद्वितीय अन्तर्गल
Meditative Hums, Buzzes, Drones and Tones (Loopable Audios for Ambiance, Meditation, Insomnia, and Restless Children)
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 0x999329df8e9dd0166a44a76af0cb79adf20f3cc42d7b5c6479c12fe67ffa4fcb. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/QMHNS1301977.