{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:LMADPCT5UEMRGSS7DGWSGQNMHG","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":"7aea866c0d20a5a448af63964def719012506ddc8fd0f5535c7da985002343a6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-08-08T14:16:47Z","title_canon_sha256":"551d394de346fd5acd70b0ae021ec39c8465a6f10826062f03ef304127be21ec"},"schema_version":"1.0","source":{"id":"1808.02790","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.02790","created_at":"2026-05-17T23:56:20Z"},{"alias_kind":"arxiv_version","alias_value":"1808.02790v1","created_at":"2026-05-17T23:56:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.02790","created_at":"2026-05-17T23:56:20Z"},{"alias_kind":"pith_short_12","alias_value":"LMADPCT5UEMR","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"LMADPCT5UEMRGSS7","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"LMADPCT5","created_at":"2026-05-18T12:32:37Z"}],"graph_snapshots":[{"event_id":"sha256:08c3e8b6278ca632b164f3bb29941b85735ad04407ca127a4878f660f780e8e1","target":"graph","created_at":"2026-05-17T23:56:20Z","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":"The sub-atomic experimental exploration of physical processes on extremely short time scales has become possible by the generation of high quality electron bunches and x-ray pulses with sub-femtosecond durations. Temporal coherence is crucial for achieving high resolution in diffraction-based diagnostics and if the transverse spatial coherence is also provided, then phenomena with very small cross sections could also be observed. Increasing the photon energy from x-ray to gamma-ray regime makes probing of extremely small space-time domains accessible. Here, a mechanism for generating attosecon","authors_text":"Alexander Andreev, Zsolt L\\'ecz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-08-08T14:16:47Z","title":"Attosecond bunches of gamma photons and positrons generated in nanorod array targets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.02790","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":"sha256:8ad85b2eec052073fed3d5e51eb88ba9f97da4589a69171023d141e797392604","target":"record","created_at":"2026-05-17T23:56:20Z","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":"7aea866c0d20a5a448af63964def719012506ddc8fd0f5535c7da985002343a6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-08-08T14:16:47Z","title_canon_sha256":"551d394de346fd5acd70b0ae021ec39c8465a6f10826062f03ef304127be21ec"},"schema_version":"1.0","source":{"id":"1808.02790","kind":"arxiv","version":1}},"canonical_sha256":"5b00378a7da119134a5f19ad2341ac399e57aadde58c4a8c390edb2725cd32d7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5b00378a7da119134a5f19ad2341ac399e57aadde58c4a8c390edb2725cd32d7","first_computed_at":"2026-05-17T23:56:20.177081Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:56:20.177081Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bT2T+g0ZkvVW21VE7oDFLm43ajh/98TsTbZGliOY6Q+chXDo9ABuLcqqVM8Qcye6WA50u3o0Wak1VUx618nAAA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:56:20.177723Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.02790","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8ad85b2eec052073fed3d5e51eb88ba9f97da4589a69171023d141e797392604","sha256:08c3e8b6278ca632b164f3bb29941b85735ad04407ca127a4878f660f780e8e1"],"state_sha256":"31f98d153fa9e102f31d5b0a7e2ec67f6171328ae8cc017ee61275e815be98e5"}