Yam or YAM may refer to: Plants and foods Yam (vegetable), common name for members of Dioscorea Sweet potato, known as yam in parts of North America Taro, known in some countries as yam Oxalis tu
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 0xeecba8e7c16c4562babdce19f187b53683e73cab95967773e2e0d455acad1586. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eb3650d8-9188-4be9-9a20-be01a992d5da.json and https://artists.proofprofile.net/proofs/artist/eb3650d8-9188-4be9-9a20-be01a992d5da.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).