AYC is an acronym for any of the following articles: African Youth Charter All Youth Channels American Youth Congress Adventist Youth Conference Active Yaw Control, Mitsubishi Motors' automotive
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ec7d49c8019f49415bfaea8ef931d96dd347ba7cccd45cc3fb72006638f097. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e4b8a96c-5ea0-4c57-b6d7-1fa65500e6eb.json and https://artists.proofprofile.net/proofs/artist/e4b8a96c-5ea0-4c57-b6d7-1fa65500e6eb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).