{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:XIMLNKVXLMNE5E662M4XFTRVMB","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":"cddc892e2846201b483842240a6271511a0f463143c14c58964fd9a6af146fff","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2013-09-06T14:26:36Z","title_canon_sha256":"6f1d5b36f9d50db052d8428f37c663731c817dbbd09a52b7b58ded40b0874852"},"schema_version":"1.0","source":{"id":"1309.1648","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.1648","created_at":"2026-05-18T03:00:37Z"},{"alias_kind":"arxiv_version","alias_value":"1309.1648v2","created_at":"2026-05-18T03:00:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.1648","created_at":"2026-05-18T03:00:37Z"},{"alias_kind":"pith_short_12","alias_value":"XIMLNKVXLMNE","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"XIMLNKVXLMNE5E66","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"XIMLNKVX","created_at":"2026-05-18T12:28:06Z"}],"graph_snapshots":[{"event_id":"sha256:097cb7c2d19c78d4cf9a742d214e2a7a50d47066ab59e9ca438671f135e9a264","target":"graph","created_at":"2026-05-18T03:00:37Z","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":"Incoherent photon emission by ultrarelativistic electrons in the normal incidence of a laser pulse on a foil is investigated by means of three-dimensional numerical simulations in the range of intensities $2 \\times 10^{21} \\text{--} 2 \\times 10^{25} \\text{W} \\, \\text{cm}^{-2}$ and electron densities $2 \\times 10^{22} \\text{--} 1 \\times 10^{24} \\text{cm}^{-3}$. We focus on properties of the resulting synchrotron radiation, such as its overall energy, directivity of the radiation pattern and slope of the energy spectrum. Regimes of laser-foil interactions are studied in the framework of a simple","authors_text":"A. Pukhov, E. N. Nerush, I. Yu. Kostyukov, L. Ji","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2013-09-06T14:26:36Z","title":"Gamma-ray generation in ultrahigh-intensity laser-foil interactions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.1648","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:b4bb6317c2be1059a9396db498eae701fe6f7329af14e8ba938a0b32d56d7933","target":"record","created_at":"2026-05-18T03:00:37Z","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":"cddc892e2846201b483842240a6271511a0f463143c14c58964fd9a6af146fff","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2013-09-06T14:26:36Z","title_canon_sha256":"6f1d5b36f9d50db052d8428f37c663731c817dbbd09a52b7b58ded40b0874852"},"schema_version":"1.0","source":{"id":"1309.1648","kind":"arxiv","version":2}},"canonical_sha256":"ba18b6aab75b1a4e93ded33972ce356054c57449d0df0b864989c8b004e30df5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ba18b6aab75b1a4e93ded33972ce356054c57449d0df0b864989c8b004e30df5","first_computed_at":"2026-05-18T03:00:37.045599Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:00:37.045599Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"s47yQ5ZLqYwfE9p1omzSyWVICzMSDKx6CG7gbUVx1xLJKgBJIRzQTfYQBX4w2DeoEOr7V4jZGWjnOdD+Ify3Dw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:00:37.046375Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.1648","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b4bb6317c2be1059a9396db498eae701fe6f7329af14e8ba938a0b32d56d7933","sha256:097cb7c2d19c78d4cf9a742d214e2a7a50d47066ab59e9ca438671f135e9a264"],"state_sha256":"b3dec28d20fa847c3ac9284975570ebe08643e89ff5848dec13eaf61024ad41a"}