H.E.A.R. is a non-profit organization dedicated to preventing hearing loss, mainly from loud rock music. The acronym stands for Hearing Education and Awareness for Rockers. It was founded in 1988 by
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 0xa74c1fdeef26f3b7917a0316db2797a7bcfeb0ea7a9b68e45cf2a05dd4c4c663. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/91a30182-91c6-4a5e-b5bc-5a6f9c15ce62.json and https://artists.proofprofile.net/proofs/artist/91a30182-91c6-4a5e-b5bc-5a6f9c15ce62.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).