Bringing Blockchain-Backed Provenance to Financial Services
Talkat Open Source in Finance Forum New York 2022 · on Thursday, 2022-12-08· at 16:55· HUB 2, New York, NY, USA·
summary
A blockchain-backed provenance product called Chronicle records and queries immutable life‑stories of assets using a domain YAML mapped to the W3C PROV‑O ontology, GraphQL APIs and a permissioned ledger (currently Hyperledger Sawtooth). The demo models a two‑for‑one stock split: create agents and a shareholding, publish a split announcement, then record an updated shareholding as a revision. The system stores every version (no silent deletions), runs in an in‑memory dev mode, is open source, and the demo works end‑to‑end.
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