{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:AG3SCRESXUMLV7GPTESVN5HWH2","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":"85d12921382fc44db0bacd077c6ee5e0aa17f10bb9c1865a0cbf97360dc9ff23","cross_cats_sorted":[],"license":"","primary_cat":"physics.atom-ph","submitted_at":"2001-03-20T18:40:52Z","title_canon_sha256":"e62945365b000987adbfa97c11ec5d37134133f1ea32da27121f948b237e040e"},"schema_version":"1.0","source":{"id":"physics/0103063","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0103063","created_at":"2026-07-04T16:28:45Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0103063v1","created_at":"2026-07-04T16:28:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0103063","created_at":"2026-07-04T16:28:45Z"},{"alias_kind":"pith_short_12","alias_value":"AG3SCRESXUML","created_at":"2026-07-04T16:28:45Z"},{"alias_kind":"pith_short_16","alias_value":"AG3SCRESXUMLV7GP","created_at":"2026-07-04T16:28:45Z"},{"alias_kind":"pith_short_8","alias_value":"AG3SCRES","created_at":"2026-07-04T16:28:45Z"}],"graph_snapshots":[{"event_id":"sha256:d10eea2899ec8e61d2a3967459a3fc25e2342e9223b07fae5809fb2e2bac18cf","target":"graph","created_at":"2026-07-04T16:28:45Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/physics/0103063/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present experimental results on the two-body loss rates in a magneto-optical trap of metastable helium atoms. Absolute rates are measured in a systematic way for several laser detunings ranging from -5 to -30 MHz and at different intensities, by monitoring the decay of the trap fluorescence. The dependence of the two-body loss rate coefficient $\\beta$ on the excited state ($2^3P_2$) and metastable state ($2^3S_1$) populations is also investigated.\n  From these results we infer a rather uniform rate constant $K_{sp}=(1{\\pm}0.4)\\times10^{-7}$ cm$^3$/s.","authors_text":"A. Sinatra, C.S. Unnikrishnan, E. Rasel, F. Perales, F. Pereira Dos Santos, F. S. Pavone, J. Leonard, Junmin Wang, M. Leduc","cross_cats":[],"headline":"","license":"","primary_cat":"physics.atom-ph","submitted_at":"2001-03-20T18:40:52Z","title":"Penning collisions of laser-cooled metastable helium atoms"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0103063","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":"sha256:38684e071900b00b27b8ceb1a47b4640a6689af52d90869759fc8ae012f23884","target":"record","created_at":"2026-07-04T16:28:45Z","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":"85d12921382fc44db0bacd077c6ee5e0aa17f10bb9c1865a0cbf97360dc9ff23","cross_cats_sorted":[],"license":"","primary_cat":"physics.atom-ph","submitted_at":"2001-03-20T18:40:52Z","title_canon_sha256":"e62945365b000987adbfa97c11ec5d37134133f1ea32da27121f948b237e040e"},"schema_version":"1.0","source":{"id":"physics/0103063","kind":"arxiv","version":1}},"canonical_sha256":"01b7214492bd18bafccf992556f4f63eabc91b3736cb7027db59619c6ca35b95","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"01b7214492bd18bafccf992556f4f63eabc91b3736cb7027db59619c6ca35b95","first_computed_at":"2026-07-04T16:28:45.733038Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:28:45.733038Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3tWgmyXYGgQAEtTnTJmfcGI/53VewA/9NSmbGyvB66HAK7NljEYhfdrV+Lg2BKe6ukqz7r5uEIcdlStFHkQsDQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:28:45.733398Z","signed_message":"canonical_sha256_bytes"},"source_id":"physics/0103063","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:38684e071900b00b27b8ceb1a47b4640a6689af52d90869759fc8ae012f23884","sha256:d10eea2899ec8e61d2a3967459a3fc25e2342e9223b07fae5809fb2e2bac18cf"],"state_sha256":"37f51697c5a45bf739de4366c28f3f61c6720e66e0bfb0a0e78d8795e5ae6a54"}