{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:JU3SO7FRYVOYV5ZU6IJKTLPFTV","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"ebfbf27e9662cb9513454e1acec601c8c0367ca44c4bdd6979c2f17244c2305b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-07-13T19:00:35Z","title_canon_sha256":"b9930da0ba915ba85aed5a05056f3e067bfb6031b27b02cbcf4cd6f34f331442"},"schema_version":"1.0","source":{"id":"1607.03867","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.03867","created_at":"2026-05-18T01:03:26Z"},{"alias_kind":"arxiv_version","alias_value":"1607.03867v1","created_at":"2026-05-18T01:03:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.03867","created_at":"2026-05-18T01:03:26Z"},{"alias_kind":"pith_short_12","alias_value":"JU3SO7FRYVOY","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_16","alias_value":"JU3SO7FRYVOYV5ZU","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_8","alias_value":"JU3SO7FR","created_at":"2026-05-18T12:30:25Z"}],"graph_snapshots":[{"event_id":"sha256:2fbe5490f8511a347fadd4043a260e95c3d15860d59375d0e46416b2ce4a6989","target":"graph","created_at":"2026-05-18T01:03:26Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We analyze extragalactic extinction profiles derived through gamma-ray burst afterglows, using a dust model specifically constructed on the assumption that dust grains are not immutable but respond time-dependently to the local physics. Such a model includes core-mantle spherical particles of mixed chemical composition (silicate core, sp2 and sp3 carbonaceous layers), and an additional molecular component, in the form of free-flying polycyclic aromatic hydrocarbons. We fit most of the observed extinction profiles. Failures occur for lines of sight presenting remarkable rises blueward the bump.","authors_text":"Alberto Zonca, Cesare Cecchi-Pestellini, Giacomo Mulas, Giambattista Aresu, Silvia Casu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-07-13T19:00:35Z","title":"Modelling extragalactic extinction through gamma-ray burst afterglows"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.03867","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:275722ef70d1b5ecdccd4877ecec02e9bf2bdc7eb43d3feb9cb763eef6bc6504","target":"record","created_at":"2026-05-18T01:03:26Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"ebfbf27e9662cb9513454e1acec601c8c0367ca44c4bdd6979c2f17244c2305b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-07-13T19:00:35Z","title_canon_sha256":"b9930da0ba915ba85aed5a05056f3e067bfb6031b27b02cbcf4cd6f34f331442"},"schema_version":"1.0","source":{"id":"1607.03867","kind":"arxiv","version":1}},"canonical_sha256":"4d37277cb1c55d8af734f212a9ade59d67da5fec1f1db676964930a89e044984","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4d37277cb1c55d8af734f212a9ade59d67da5fec1f1db676964930a89e044984","first_computed_at":"2026-05-18T01:03:26.157886Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:03:26.157886Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/s/XQZjMswh776n3Nlvt4AA7k6WDX+H4jK9mxefNhaF9kaDRxb/n2ELAILUSxBp972sbZuZLEPd/gCRoJWozAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:03:26.158488Z","signed_message":"canonical_sha256_bytes"},"source_id":"1607.03867","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:275722ef70d1b5ecdccd4877ecec02e9bf2bdc7eb43d3feb9cb763eef6bc6504","sha256:2fbe5490f8511a347fadd4043a260e95c3d15860d59375d0e46416b2ce4a6989"],"state_sha256":"326fa9ec864a2e728b780dc4acb987a8cab70e1e8882854ae2e1f2e36defde48"}