{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:FT4ZHTOTIPUZP7UWBJNPKGNRUW","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":"2e35e751ebdfb5862ac8d9634b1ac0d72828df2c15e102a58d40c627ed99de63","cross_cats_sorted":["physics.atm-clus","physics.atom-ph","q-bio.TO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2012-01-24T13:03:48Z","title_canon_sha256":"974ed00b0ce981c983129f9d878843d0bc27a26d11627ea90795fba2f127f012"},"schema_version":"1.0","source":{"id":"1201.4966","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.4966","created_at":"2026-05-18T00:56:52Z"},{"alias_kind":"arxiv_version","alias_value":"1201.4966v1","created_at":"2026-05-18T00:56:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.4966","created_at":"2026-05-18T00:56:52Z"},{"alias_kind":"pith_short_12","alias_value":"FT4ZHTOTIPUZ","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_16","alias_value":"FT4ZHTOTIPUZP7UW","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_8","alias_value":"FT4ZHTOT","created_at":"2026-05-18T12:27:06Z"}],"graph_snapshots":[{"event_id":"sha256:fcdae3c495d2f4b7fc32d039ebb3d9183962657e6911b5b33d7fdb79382fce58","target":"graph","created_at":"2026-05-18T00:56:52Z","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":"Neutral particles ejected from biological material under ultra short laser ablation have been investigated by laser post-ionization time-of-flight mass spectrometry. It could be shown, that beside ionized species, a substantial amount of neutral particles is ejected. A temporal study of the ablation plume is carried out by recording neutral particle time-of- flight mass spectra as a function of delay time between the ablation and post-ionization pulse. Close the ablation threshold, the mechanism of ejection is found to be of predominantely mechanical nature, driven by the relaxation of the las","authors_text":"Hatem Dachraoui, Wolfgang Husinsky","cross_cats":["physics.atm-clus","physics.atom-ph","q-bio.TO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2012-01-24T13:03:48Z","title":"Velocity distribution of neutral particles ejected from biological material under ultra short laser radiation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.4966","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":"sha256:964411f2037e6fe185fb7a456493098f4428a394206158bf333ecf996e780491","target":"record","created_at":"2026-05-18T00:56:52Z","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":"2e35e751ebdfb5862ac8d9634b1ac0d72828df2c15e102a58d40c627ed99de63","cross_cats_sorted":["physics.atm-clus","physics.atom-ph","q-bio.TO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2012-01-24T13:03:48Z","title_canon_sha256":"974ed00b0ce981c983129f9d878843d0bc27a26d11627ea90795fba2f127f012"},"schema_version":"1.0","source":{"id":"1201.4966","kind":"arxiv","version":1}},"canonical_sha256":"2cf993cdd343e997fe960a5af519b1a596e6c0a7b78e4ae0d8f086a8e8643e8e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2cf993cdd343e997fe960a5af519b1a596e6c0a7b78e4ae0d8f086a8e8643e8e","first_computed_at":"2026-05-18T00:56:52.938713Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:56:52.938713Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ibdiDPH43jRw56WnQNo8gCjHdN48xvZZBm76nPvhvyQoPFH50V9f9ndcHZkapG/HBpYrYWTePvj6sXlzvjjjDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:56:52.939245Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.4966","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:964411f2037e6fe185fb7a456493098f4428a394206158bf333ecf996e780491","sha256:fcdae3c495d2f4b7fc32d039ebb3d9183962657e6911b5b33d7fdb79382fce58"],"state_sha256":"ea03b157a8f2b7f5712d23c4b3e9ea0ce4087febd3e9c39c14fa23d127588e8e"}