{"energy_coverage":"Whole","energy_provenance":"Estimator","group_end":"2026-10-06T00:00:04Z","group_id":0,"group_start":"2026-10-06T00:00:00Z","joules_total":1800,"kind":"group","leaf_count":2,"parent_receipt_hash":null,"root_hash":"27d390152992012872960999af3942bd9e794db9516bc915637316dee2850782","sig":"7296693723c77c5b6c2eb4f9f0b8bf66b9d825931473c51ec8329505a292e86b1063595188af10f6396148f7deafd52719b2f9792dd71436ee7920c83485a90c","sign_version":2,"signer_id":"did:web:origin.example#d1","signer_pubkey":"af06a3e3291714e4f356c19c9b15cd1951ec6e6662aa77be07547f289383341d","track_alias":2}