{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:NGF7OXLWSSWA5R7TXSBB3D7KAR","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":"c9fd2923a2f9a00fb7dc34267e8a30ec91ad430ab16dfa407a9ce0c5736c3e08","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-07-27T17:28:59Z","title_canon_sha256":"24a0980d11ce3fd8811e1a936205f8a5a8aeea15c2e1263067af289b73fef01a"},"schema_version":"1.0","source":{"id":"1507.07493","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.07493","created_at":"2026-05-18T01:36:16Z"},{"alias_kind":"arxiv_version","alias_value":"1507.07493v1","created_at":"2026-05-18T01:36:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.07493","created_at":"2026-05-18T01:36:16Z"},{"alias_kind":"pith_short_12","alias_value":"NGF7OXLWSSWA","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"NGF7OXLWSSWA5R7T","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"NGF7OXLW","created_at":"2026-05-18T12:29:32Z"}],"graph_snapshots":[{"event_id":"sha256:77b9ea0c2a2f950523bcd46367d9112fb565b4e92bcff67f785eaf52054a6ff5","target":"graph","created_at":"2026-05-18T01:36:16Z","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":"We review the tantalising prospect that the first evidence for the dark energy driving the observed acceleration of the Universe on giga-parsec scales may be found through metre scale laboratory based atom interferometry experiments. To do that, we first introduce the idea that scalar fields could be responsible for dark energy and show that in order to be compatible with fifth force constraints these fields must have a screening mechanism which hides their effects from us within the solar system. Particular emphasis is placed on one such screening mechanism known as the chameleon effect where","authors_text":"Clare Burrage, Edmund J. Copeland","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-07-27T17:28:59Z","title":"Using Atom Interferometry to Detect Dark Energy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.07493","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:cbf71ce8a32ff323af40a8ef43d12afb124cbf770dabc6e798dd2a4406ca9a5a","target":"record","created_at":"2026-05-18T01:36:16Z","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":"c9fd2923a2f9a00fb7dc34267e8a30ec91ad430ab16dfa407a9ce0c5736c3e08","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-07-27T17:28:59Z","title_canon_sha256":"24a0980d11ce3fd8811e1a936205f8a5a8aeea15c2e1263067af289b73fef01a"},"schema_version":"1.0","source":{"id":"1507.07493","kind":"arxiv","version":1}},"canonical_sha256":"698bf75d7694ac0ec7f3bc821d8fea046ac58f36e3393bda7092b14e88d8a88e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"698bf75d7694ac0ec7f3bc821d8fea046ac58f36e3393bda7092b14e88d8a88e","first_computed_at":"2026-05-18T01:36:16.272859Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:36:16.272859Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ADmBXf+dbEhptBdOA/KivWCQ/rJZ2o4M479e2Hc3RA+JMayGGkpEQ5bX26PvJRsbMUAfrlYHtrctfYXJFAXLDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:36:16.273464Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.07493","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cbf71ce8a32ff323af40a8ef43d12afb124cbf770dabc6e798dd2a4406ca9a5a","sha256:77b9ea0c2a2f950523bcd46367d9112fb565b4e92bcff67f785eaf52054a6ff5"],"state_sha256":"94e7ae1722a91b0688a6d8c063bbddf48afc1184c19bb547b26699be55c17821"}