Angelina Ballerina is a children's book series by author Katharine Holabird and illustrator Helen Craig about a fictional mouse named Angelina Jeanette Mouseling who is training to become a ballerina.
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 0x3bc03c67b5c08cdf970fc41aa0ce89bd6d3d3d61d61714739eb9f923f8d9423f. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c81ef14d-e9df-4ca6-973e-0f92af8a25b3.json and https://artists.proofprofile.net/proofs/artist/c81ef14d-e9df-4ca6-973e-0f92af8a25b3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
07/Angelina und die aufregende Neuigkeit