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 0xc9c5c7678eb93633b007ddf97b3e33785ceff8bdd30e92f8cb1e67826dd905f0. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e8aefaba-71cc-4603-a1bb-41b478014b17.json and https://artists.proofprofile.net/proofs/artist/e8aefaba-71cc-4603-a1bb-41b478014b17.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fast Deep Sleep Aid for Exhausted Fresh Parents Loopable
Pure Sleep Fan Sound with White and Brown Noise
BBVB Baby Sleep Noise (Loopable, No Fade)
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 0x994407290f6b60ce2f7e850619518ac5585b7a7b85d4b1fb167c40b9939e55f2. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/PLS101900270.
Fan Noises for Restless to Sleep (Loopable)
Sleep Sound of Sober Rain for Sleeping Babies
The Brown Noises for Relaxing Sweet Dreams and Recharge
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b293ab5c4d9f56abe5f0e54205b320d92111b8fd8d897494cfcb3f9ba39c99c. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZAKB2008716.