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 0xa88b382c33833f112982f7ae513107824dd0485d458f02ee0d0d3f6f35f4f743. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ea242d26-3fb3-47f4-971d-04908d03c92c.json and https://artists.proofprofile.net/proofs/artist/ea242d26-3fb3-47f4-971d-04908d03c92c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
#01 The Sound of Rain for Napping, Relaxation, Yoga, Zen
#01 Rain Sounds for Relaxation, Night Sleep, Wellness, to Cool Down
#01 Rain Sounds for Napping, Relaxation, Reading, Recovery
#1 Rain Noise for Bedtime, Relaxation, Studying, Anxiety Relief
#1 Rain Sounds for Sleep, Relaxing, Yoga, Next-Door Noise
#1 Rain Sounds for Relaxation, Night Sleep, Studying, Newborns