{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:UWMOLCK27WSNPJJXTMJX4Y5J2G","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":"18771a8f35d9695f1cd66fbc3eed8383958ac120a3b6bb25853e889427257e6e","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-01-26T06:07:40Z","title_canon_sha256":"4e45a3c259774f93df51c6855f7781e8fb3b79a348a09f2b99da7cb34940955d"},"schema_version":"1.0","source":{"id":"1601.06897","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.06897","created_at":"2026-05-18T01:18:29Z"},{"alias_kind":"arxiv_version","alias_value":"1601.06897v1","created_at":"2026-05-18T01:18:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.06897","created_at":"2026-05-18T01:18:29Z"},{"alias_kind":"pith_short_12","alias_value":"UWMOLCK27WSN","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_16","alias_value":"UWMOLCK27WSNPJJX","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_8","alias_value":"UWMOLCK2","created_at":"2026-05-18T12:30:46Z"}],"graph_snapshots":[{"event_id":"sha256:68e8177dd948cfc24b93c9bd637ea3e94c4ce6d110b3f2798bcbe3ae700b8e71","target":"graph","created_at":"2026-05-18T01:18:29Z","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 physical origin of the dark energy that causes the accelerated expansion rate of the universe is one of the major open questions of cosmology. One set of theories postulates the existence of a self-interacting scalar field for dark energy coupling to matter. In the chameleon dark energy theory, this coupling induces a screening mechanism such that the field amplitude is nonzero in empty space but is greatly suppressed in regions of terrestrial matter density. However measurements performed under appropriate vacuum conditions can enable the chameleon field to appear in the apparatus, where ","authors_text":"A. R. Young, B. Heacock, C. B. Shahi, D. A. Pushin, D. G. Cory, D. Sarenac, J. Nsofini, K. Li, M. Arif, M. G. Huber, P. Saggu, R. Haun, V. Skavysh, W. M. Snow","cross_cats":["physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-01-26T06:07:40Z","title":"Neutron Limit on the Strongly-Coupled Chameleon Field"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.06897","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":"sha256:14cf69e842594fd2a1d90434add888ce1ec36d73a0a1ff2168f7236a21e2ff96","target":"record","created_at":"2026-05-18T01:18:29Z","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":"18771a8f35d9695f1cd66fbc3eed8383958ac120a3b6bb25853e889427257e6e","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-01-26T06:07:40Z","title_canon_sha256":"4e45a3c259774f93df51c6855f7781e8fb3b79a348a09f2b99da7cb34940955d"},"schema_version":"1.0","source":{"id":"1601.06897","kind":"arxiv","version":1}},"canonical_sha256":"a598e5895afda4d7a5379b137e63a9d1a63dd6e88aa42a1215c18f49de89cc43","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a598e5895afda4d7a5379b137e63a9d1a63dd6e88aa42a1215c18f49de89cc43","first_computed_at":"2026-05-18T01:18:29.343192Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:18:29.343192Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fVO8xyypI+Xs6tqBbnCqSCfqHnAPiNKT+6BeRPSm8FNUUpOJhE0Ue0r8s940JUoV2M+YWiQ2lwU2fy/VdbTQCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:18:29.343838Z","signed_message":"canonical_sha256_bytes"},"source_id":"1601.06897","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:14cf69e842594fd2a1d90434add888ce1ec36d73a0a1ff2168f7236a21e2ff96","sha256:68e8177dd948cfc24b93c9bd637ea3e94c4ce6d110b3f2798bcbe3ae700b8e71"],"state_sha256":"2a68cee61a478e5f25513dcbcf900a09465c317913ec78cdac3cdee8261cf5f3"}