{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:7LQCH5WSOLFAO7P46W4HQOWYFX","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":"6c4f528e339fc873ca953f5c709461398b3dd9c3e14e9c142abb036d5ef7af41","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-23T16:52:25Z","title_canon_sha256":"5363feca7b68faf3f6a6f9126eb9604bf8a7a7fa17db4fbbc58961cd8c28087d"},"schema_version":"1.0","source":{"id":"1804.08558","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.08558","created_at":"2026-05-17T23:57:31Z"},{"alias_kind":"arxiv_version","alias_value":"1804.08558v3","created_at":"2026-05-17T23:57:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.08558","created_at":"2026-05-17T23:57:31Z"},{"alias_kind":"pith_short_12","alias_value":"7LQCH5WSOLFA","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"7LQCH5WSOLFAO7P4","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"7LQCH5WS","created_at":"2026-05-18T12:32:11Z"}],"graph_snapshots":[{"event_id":"sha256:c8cba8b96ba7009978588bd9165d91ee38b3952c4b0c0a7b16d4d49a5a9fc50f","target":"graph","created_at":"2026-05-17T23:57:31Z","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":"Cosmological models where dark matter (DM) and dark energy (DE) interact with each other are the general scenarios in compared to the non-interacting models. The interaction is usually motivated from the phenomenological ground and thus there is no such rule to prefer a particular interaction between DM and DE. Being motivated, in this work, allowing an exponential interaction between DM and DE in a spatially flat homogeneous and isotropic universe, we explore the dynamics of the universe through the constraints of the free parameters where the strength of the interaction is characterized by t","authors_text":"Andronikos Paliathanasis, Supriya Pan, Weiqiang Yang","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-23T16:52:25Z","title":"Cosmological constraints on an exponential interaction in the dark sector"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.08558","kind":"arxiv","version":3},"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":"sha256:5f601e56c43766f2b2216843bf93dc698a13184f18f13095b2fa6ae893b6bc22","target":"record","created_at":"2026-05-17T23:57:31Z","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":"6c4f528e339fc873ca953f5c709461398b3dd9c3e14e9c142abb036d5ef7af41","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-23T16:52:25Z","title_canon_sha256":"5363feca7b68faf3f6a6f9126eb9604bf8a7a7fa17db4fbbc58961cd8c28087d"},"schema_version":"1.0","source":{"id":"1804.08558","kind":"arxiv","version":3}},"canonical_sha256":"fae023f6d272ca077dfcf5b8783ad82dec1ae6c6899fbde6dcb322d33ad0a629","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fae023f6d272ca077dfcf5b8783ad82dec1ae6c6899fbde6dcb322d33ad0a629","first_computed_at":"2026-05-17T23:57:31.997761Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:57:31.997761Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WYx33gan/DqTGUIDbkjO6+URnwu22yxhoLw2U42+KMGV/MOwrO2UDNzqIJAmwpv/i0g/XatBS9zx4WZplvCDDA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:57:31.998458Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.08558","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5f601e56c43766f2b2216843bf93dc698a13184f18f13095b2fa6ae893b6bc22","sha256:c8cba8b96ba7009978588bd9165d91ee38b3952c4b0c0a7b16d4d49a5a9fc50f"],"state_sha256":"1bea1458f278ae87b622d3ada3bf5e3e35f2076a2dd57f4124681675ebdc818c"}