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 0xbc2696debfa8e7f89c6f680c256661909aa911c0dad97d24d675c832c83b68b0. 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/b74d0654-836e-480c-8455-f63330eb715e.json and https://artists.proofprofile.net/proofs/artist/b74d0654-836e-480c-8455-f63330eb715e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Soothing Rapids for Background Sounds and Natural White Noise
Clothes Dryers for Background Sounds and White Noise
Refrigerators and Generators for Background Sounds and White Noises
Shipping Yard Sounds for Background Sound and White Noise
White Noise and White Noise Alternatives
Soothing Waves of Ocean and Sea for Background Sounds and Natural White Noise
Soothing Fans and Air Conditioners for Background Sounds and White Noise
Vacuum Cleaners for Background Sounds and White Noise
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 0x615923e525422fc4218409d102ad4528d5b79edac64472f83ac3f9bfd423af80. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QMHNS1324861.
Hair Dryers for Background Sounds and White Noise
Small Indoor Waterfalls, Rock Gardens, and other Decorative Water Features for Background Sounds