{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:3K2Z7SENK433FBDXKC2ZESIJD2","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":"6b08084a0bd31435fbe6d2800231f6dc06ac1506785d5f817c396ce57ec1fffc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-07-16T09:59:23Z","title_canon_sha256":"ae1aa03e1bec4c59ee6bc40770c46ca2df59ae490be5060ecf4fdc1e552f765c"},"schema_version":"1.0","source":{"id":"1907.06924","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.06924","created_at":"2026-05-17T23:40:16Z"},{"alias_kind":"arxiv_version","alias_value":"1907.06924v2","created_at":"2026-05-17T23:40:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.06924","created_at":"2026-05-17T23:40:16Z"},{"alias_kind":"pith_short_12","alias_value":"3K2Z7SENK433","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_16","alias_value":"3K2Z7SENK433FBDX","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_8","alias_value":"3K2Z7SEN","created_at":"2026-05-18T12:33:07Z"}],"graph_snapshots":[{"event_id":"sha256:12a393fb16c1c5f693a614a788eddcdb3dd3e7f29d133f8e024ed9242b211df7","target":"graph","created_at":"2026-05-17T23:40:16Z","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":"Electromagnetic-Cascades (EmCa) is a Python package for the simulation of electromagnetic cascades in various materials. The showers are modeled using cascade equations and the relevant interactions, specifically pair production, Bremsstrahlung, Compton scattering and ionization. This methodology has the advantage of being computationally inexpensive and fast, unlike Monte Carlo methods. The code includes low and high energy material effects, allowing for a high range of validity of the simulation results. EmCa is easily extendable and offers a framework for testing different electromagnetic i","authors_text":"Anatoli Fedynitch, Matthias Huber, Stephan Meighen-Berger","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-07-16T09:59:23Z","title":"EmCa -- Electromagnetic-Cascades Simulation Package"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.06924","kind":"arxiv","version":2},"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":"sha256:0b84080a1a1341899964ce315c22258635cebca09c93db57e51401ae165a3ef5","target":"record","created_at":"2026-05-17T23:40:16Z","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":"6b08084a0bd31435fbe6d2800231f6dc06ac1506785d5f817c396ce57ec1fffc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-07-16T09:59:23Z","title_canon_sha256":"ae1aa03e1bec4c59ee6bc40770c46ca2df59ae490be5060ecf4fdc1e552f765c"},"schema_version":"1.0","source":{"id":"1907.06924","kind":"arxiv","version":2}},"canonical_sha256":"dab59fc88d5737b2847750b59249091e93e550eec1f796ae375efd1d6b2a06e0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dab59fc88d5737b2847750b59249091e93e550eec1f796ae375efd1d6b2a06e0","first_computed_at":"2026-05-17T23:40:16.929694Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:40:16.929694Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"F2Rw5gUdCk3HLFrHOZKkcGNdSxuEVEjGxqLpmUSdJaIM+6CTIMRoeCst1wuxBgGFwKgLDUs23HYjd2YJHa20Aw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:40:16.930385Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.06924","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0b84080a1a1341899964ce315c22258635cebca09c93db57e51401ae165a3ef5","sha256:12a393fb16c1c5f693a614a788eddcdb3dd3e7f29d133f8e024ed9242b211df7"],"state_sha256":"a7288a74b7915939fc6a6a6f6e1205e5c563b64daf16fddae4a6ee78b7523f84"}