{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:B2U7ZCEPHXP2MJTWGNLLGJS24E","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":"d244d925fd9688f48bb70003d031b4c429ee499407962e3a75a586e0360250a7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-11-06T11:10:00Z","title_canon_sha256":"97c0a12d6f18de75fbe38b2856aa2f5c51d6b43c0e278c8241b13f52ab5fed93"},"schema_version":"1.0","source":{"id":"1111.1404","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.1404","created_at":"2026-05-18T01:59:44Z"},{"alias_kind":"arxiv_version","alias_value":"1111.1404v1","created_at":"2026-05-18T01:59:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.1404","created_at":"2026-05-18T01:59:44Z"},{"alias_kind":"pith_short_12","alias_value":"B2U7ZCEPHXP2","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_16","alias_value":"B2U7ZCEPHXP2MJTW","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_8","alias_value":"B2U7ZCEP","created_at":"2026-05-18T12:26:24Z"}],"graph_snapshots":[{"event_id":"sha256:1d97016e38caf55887767324a7c9299d049642f262662d7b8f7067d53f368f27","target":"graph","created_at":"2026-05-18T01:59:44Z","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":"Coupling dark energy to dark matter provides one of the simplest way to effectively modify gravity at large scales without strong constraints from local (i.e. solar system) observations. Models of coupled dark energy have been studied several times in the past and are already significantly constrained by cosmic microwave background experiments. In this paper we estimate the constraints that future large-scale observations will be able to put on the coupling and in general on all the parameters of the model. We combine cosmic microwave background, tomographic weak lensing, redshift distortions ","authors_text":"Adrian Vollmer, Claudia Quercellini, Luca Amendola, Valeria Pettorino","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-11-06T11:10:00Z","title":"Testing coupled dark energy with next-generation large-scale observations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.1404","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:edac8fd530157d12625b6a2e3df850651bf3fa830b5011bbc60afa192b633449","target":"record","created_at":"2026-05-18T01:59:44Z","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":"d244d925fd9688f48bb70003d031b4c429ee499407962e3a75a586e0360250a7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-11-06T11:10:00Z","title_canon_sha256":"97c0a12d6f18de75fbe38b2856aa2f5c51d6b43c0e278c8241b13f52ab5fed93"},"schema_version":"1.0","source":{"id":"1111.1404","kind":"arxiv","version":1}},"canonical_sha256":"0ea9fc888f3ddfa626763356b3265ae119f65f2003cf628605aa142d866c2e2c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0ea9fc888f3ddfa626763356b3265ae119f65f2003cf628605aa142d866c2e2c","first_computed_at":"2026-05-18T01:59:44.772146Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:44.772146Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"a+RvgJSt2yFUR/Pq7AbGpBI4IXHhifkMe9p41q1QuyhBBGnQ9u+Z/RaAz/9xF7sul7b8fu1pyjd3blZSysYHAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:44.772986Z","signed_message":"canonical_sha256_bytes"},"source_id":"1111.1404","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:edac8fd530157d12625b6a2e3df850651bf3fa830b5011bbc60afa192b633449","sha256:1d97016e38caf55887767324a7c9299d049642f262662d7b8f7067d53f368f27"],"state_sha256":"1a2ad796245abc0911b94f602930ad69556cc3f1057b96a27a83aca272230263"}