1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x9a0764258648816af17d9ec284e4240fc9c0baefd46ae6e9de81b253da9bafb7. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7cc24aa-2be6-4dbb-8028-7645f887b268.json and https://artists.proofprofile.net/proofs/artist/a7cc24aa-2be6-4dbb-8028-7645f887b268.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sleeping Baby Stress Relief - 111hz (Loopable)
Sleeping Baby Stress Relief - 222hz (Loopable)
Sleeping Baby Stress Relief - 555hz (Loopable)
Sleeping Baby Stress Relief - 333hz (Loopable)
Sleeping Baby Stress Relief - 444hz (Loopable)
White Noise For Baby Sleep 10 (Loopable)
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 → block OTSBitcoinBlock must exist at that height 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 0xa29d356fe975d9e11e088def6b3d0c6ec6fd9093db487a5200ce479833a4b9a7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBMJG2215013.