{"chain":"helios-provenance-chain","model":"HEMO event -> HELIOS provenance -> canonical tx hash -> signed block hash chain","head":{"height":55,"previous_block_hash":"68f8be952e4b715b4e7b054db31d30dbf295e5d0e4787bd96d6eb92615574ac2","timestamp":"2026-08-28T22:05:12.000Z","tx_root":"50eef89ee3b8544ffbc72128d018dd4e6bc1d9b8940ec8d8fceac7dbe960b929","tx_count":4,"first_ledger_id":"le_1787954613368_8ape","last_ledger_id":"le_1787954710175_zgy7","supply_after":5000190000000,"block_hash":"d6953a37579fc009c9451978a87d8bd59e95933d70049e8f8fe965644a480119","signature":"7a2cc3b7a463bc7582a5c0294ddcd0904ad195ac12789d65a2dda2f300b667e65178d519554dfa88dd9aea13c26d94e26822925c8ae2593f034e404937add601","signer_key_id":"56844b4ec0c028bd","canonical_json":"{\"height\":55,\"previous_block_hash\":\"68f8be952e4b715b4e7b054db31d30dbf295e5d0e4787bd96d6eb92615574ac2\",\"supply_after\":5000190000000,\"timestamp\":\"2026-08-28T22:05:12.000Z\",\"tx_count\":4,\"tx_root\":\"50eef89ee3b8544ffbc72128d018dd4e6bc1d9b8940ec8d8fceac7dbe960b929\"}","created_at":1787954712},"pending_tx_count":0,"future_bridge":"External listings can wrap or mirror HEMO later; this chain remains the canonical in-house truth source."}