Pippi may refer to: Pippi Longstocking, the main character in an eponymous series of children's books by the Swedish author Astrid Lindgren Pippi, a character in the video game Mother Pippi, the o
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 0x14144bd25e489c7c8732e58117dcf1da56835d1ad206f192463ec2089c359c49. 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/a33dc7ea-2c78-43ad-804f-b26856b6765a.json and https://artists.proofprofile.net/proofs/artist/a33dc7ea-2c78-43ad-804f-b26856b6765a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).