{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:SK6D3MPU3QH5VINLWIE43QMTHN","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":"8f510bcad1cfed5aa95b376851102379ef8672e70e1722ac833bd43b0cee5be5","cross_cats_sorted":["hep-ph","nucl-ex","physics.data-an"],"license":"","primary_cat":"hep-ex","submitted_at":"1999-11-29T13:28:10Z","title_canon_sha256":"b4f89a86a49316113157a6ee3da12957b948d8eb60602492eba2966085eab276"},"schema_version":"1.0","source":{"id":"hep-ex/9911042","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ex/9911042","created_at":"2026-07-04T16:13:58Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ex/9911042v2","created_at":"2026-07-04T16:13:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ex/9911042","created_at":"2026-07-04T16:13:58Z"},{"alias_kind":"pith_short_12","alias_value":"SK6D3MPU3QH5","created_at":"2026-07-04T16:13:58Z"},{"alias_kind":"pith_short_16","alias_value":"SK6D3MPU3QH5VINL","created_at":"2026-07-04T16:13:58Z"},{"alias_kind":"pith_short_8","alias_value":"SK6D3MPU","created_at":"2026-07-04T16:13:58Z"}],"graph_snapshots":[{"event_id":"sha256:dc12848abd8105b1122ac727402f09014e3f5334a04944ea4aea7b5952c7257b","target":"graph","created_at":"2026-07-04T16:13:58Z","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/hep-ex/9911042/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We obtain an approximate Gaussian distribution from a Poisson distribution after doing a change of variable. A new chi-square function is obtained which can be used for parameter estimations and goodness-of-fit testing when adjusting curves to histograms. Since the new distribution is approximately Gaussian we can use it even when the bin contents are small. The corresponding chi-square function can be used for curve fitting. This chi-square function is simple to implement and presents a fast convergence of the parameters to the correct value, especially for the parameters associated with the ","authors_text":"Brazil), Brazil (2)Centro Brasileiro de Pesquisas Fisicas, F. M. L. Almeida Jr.(1), M. A. B. do Vale (2) ((1)Instituto de Fisica - Universidade Federal do Rio de Janeiro, M. Barbi (1)","cross_cats":["hep-ph","nucl-ex","physics.data-an"],"headline":"","license":"","primary_cat":"hep-ex","submitted_at":"1999-11-29T13:28:10Z","title":"A proposal for a different chi-square function for Poisson distributions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/9911042","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":"sha256:71b19b0c17b7e249f6f1313160883eb9a688a0f5392148fe6c7f71f58e2b483d","target":"record","created_at":"2026-07-04T16:13:58Z","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":"8f510bcad1cfed5aa95b376851102379ef8672e70e1722ac833bd43b0cee5be5","cross_cats_sorted":["hep-ph","nucl-ex","physics.data-an"],"license":"","primary_cat":"hep-ex","submitted_at":"1999-11-29T13:28:10Z","title_canon_sha256":"b4f89a86a49316113157a6ee3da12957b948d8eb60602492eba2966085eab276"},"schema_version":"1.0","source":{"id":"hep-ex/9911042","kind":"arxiv","version":2}},"canonical_sha256":"92bc3db1f4dc0fdaa1abb209cdc1933b5c016d20b60ea708963222247b084be4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"92bc3db1f4dc0fdaa1abb209cdc1933b5c016d20b60ea708963222247b084be4","first_computed_at":"2026-07-04T16:13:58.785010Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:13:58.785010Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kYUeL4J0V0S/8aqa31TGjCz1lTtAFC0S92K902fbDQzR96JAPwdeWbK6LykD7Zo/2Ds2pjuXX5FwlaOHbOztBw==","signature_status":"signed_v1","signed_at":"2026-07-04T16:13:58.785447Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ex/9911042","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:71b19b0c17b7e249f6f1313160883eb9a688a0f5392148fe6c7f71f58e2b483d","sha256:dc12848abd8105b1122ac727402f09014e3f5334a04944ea4aea7b5952c7257b"],"state_sha256":"60dfa81b7a50841faf43f86da339612a103189708786bac26d2c2dd34b3a38ce"}