{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:SLMCQAVTE7MLBVV3DBS4LJRWB2","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":"b05894342febc5cdb9567dfa5aaf45158b45ac1888c4237f5a92f21647008968","cross_cats_sorted":["physics.ins-det","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2015-06-23T05:33:18Z","title_canon_sha256":"07eacd7a742d1f11e7a73e6d6b8a90064d1fffab301607294c6ae06e7f7276b7"},"schema_version":"1.0","source":{"id":"1506.07442","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.07442","created_at":"2026-05-18T01:32:07Z"},{"alias_kind":"arxiv_version","alias_value":"1506.07442v3","created_at":"2026-05-18T01:32:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.07442","created_at":"2026-05-18T01:32:07Z"},{"alias_kind":"pith_short_12","alias_value":"SLMCQAVTE7ML","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_16","alias_value":"SLMCQAVTE7MLBVV3","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_8","alias_value":"SLMCQAVT","created_at":"2026-05-18T12:29:42Z"}],"graph_snapshots":[{"event_id":"sha256:3b6b8050b24af03621819f4fd9e4ee5f1624cca5508ef217c8661059e7fe793d","target":"graph","created_at":"2026-05-18T01:32:07Z","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":"Cold atom electron sources are a promising alternative to traditional photocathode sources for use in ultrafast electron diffraction due to greatly reduced electron temperature at creation, and the potential for a corresponding increase in brightness. Here we demonstrate single-shot, nanosecond electron diffraction from monocrystalline gold using cold electron bunches generated in a cold atom electron source. The diffraction patterns have sufficient signal to allow registration of multiple single-shot images, generating an averaged image with significantly higher signal-to-noise ratio than obt","authors_text":"Andrew J. McCulloch, Benjamin M. Sparkes, Corey T. Putkunz, Keith A. Nugent, Robert E. Scholten, Rory W. Speirs","cross_cats":["physics.ins-det","physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2015-06-23T05:33:18Z","title":"Single-Shot Electron Diffraction using a Cold Atom Electron Source"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.07442","kind":"arxiv","version":3},"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":"sha256:0e2760e28196349b973411f2af35590b3c6c24dae987761b48266296d05f0da4","target":"record","created_at":"2026-05-18T01:32:07Z","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":"b05894342febc5cdb9567dfa5aaf45158b45ac1888c4237f5a92f21647008968","cross_cats_sorted":["physics.ins-det","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2015-06-23T05:33:18Z","title_canon_sha256":"07eacd7a742d1f11e7a73e6d6b8a90064d1fffab301607294c6ae06e7f7276b7"},"schema_version":"1.0","source":{"id":"1506.07442","kind":"arxiv","version":3}},"canonical_sha256":"92d82802b327d8b0d6bb1865c5a6360eb5f35117aa506a1642423128b2188c03","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"92d82802b327d8b0d6bb1865c5a6360eb5f35117aa506a1642423128b2188c03","first_computed_at":"2026-05-18T01:32:07.838332Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:32:07.838332Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"k9SA5/xam5juBdwokIRl5iOlmnV95WiJZ0PdwSckc1OZLiFWZm3qtxBVedy35Xeu/k/Xh6I8QyQhdDFFnkh1Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:32:07.839117Z","signed_message":"canonical_sha256_bytes"},"source_id":"1506.07442","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0e2760e28196349b973411f2af35590b3c6c24dae987761b48266296d05f0da4","sha256:3b6b8050b24af03621819f4fd9e4ee5f1624cca5508ef217c8661059e7fe793d"],"state_sha256":"2eb5997cef7f4caf5d98604d3bf8f1e6eb7caea596f531fd0c3b76bd96e3a6cf"}