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 0xf04d4581f304097b89129198c9c0d5b3183ca4657204c26325980c4e28b31496. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/edb60382-bf1c-448b-aa30-295a993bf56d.json and https://artists.proofprofile.net/proofs/artist/edb60382-bf1c-448b-aa30-295a993bf56d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
White Noise Collection, Vol.1 - For Deep Sleep, Relaxation, Mindfulness and Concentration
White Noise Settings - For Deep Sleep, Wellness, Relaxation and Mindfulness
White Noise – Sounds of Fans and Machines