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 0x4b7a279d9ebb67e5272ef14341a30b09f907148b62075f858d2be123f5b76ebe. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2840c899-d688-4801-beb6-11bf3b337e41.json and https://artists.proofprofile.net/proofs/artist/2840c899-d688-4801-beb6-11bf3b337e41.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x7a2be8ed7ac6dc4defc370ce9b57f48bda52e9e3b11a066d0a700f78242fa1c6. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/CH6542009111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3523c03149d09744c84d0feb73c848aa7f2fd09a3fa10b04ea6b6ba1f11e159c. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/CH6542009107.
White Noise and White Noise Alternatives
Refrigerators and Generators for Background Sounds and White Noises
Soothing Waterfalls for Calming Background Sounds and Natural White Noise
Shipping Yard Sounds for Background Sound and White Noise
Dishwashers for Background Sounds and White Noise
Running Water from Spouts, Spickets, and Faucets for Background Sounds and White Noise
Soothing Waves of Ocean and Sea for Background Sounds and Natural White Noise
Factory Sounds for Background and White Noise
Clothes Dryers for Background Sounds and White Noise
Air Conditioners and Fans for Background Sounds and White Noise