{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:5VL2KYWNVYQ44NO54ZARW6OGX6","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":"5885ff1e4a31f1a65e423da05cebefa75db79ffa6ff2de7bd34951e97c5f500d","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-01-28T11:47:30Z","title_canon_sha256":"47260f48915cfd89982fadb32a059d89344a49a1c0f1b5f9880fe7488e53c53b"},"schema_version":"1.0","source":{"id":"2001.10277","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.10277","created_at":"2026-07-05T01:18:49Z"},{"alias_kind":"arxiv_version","alias_value":"2001.10277v2","created_at":"2026-07-05T01:18:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.10277","created_at":"2026-07-05T01:18:49Z"},{"alias_kind":"pith_short_12","alias_value":"5VL2KYWNVYQ4","created_at":"2026-07-05T01:18:49Z"},{"alias_kind":"pith_short_16","alias_value":"5VL2KYWNVYQ44NO5","created_at":"2026-07-05T01:18:49Z"},{"alias_kind":"pith_short_8","alias_value":"5VL2KYWN","created_at":"2026-07-05T01:18:49Z"}],"graph_snapshots":[{"event_id":"sha256:5b9ac2afa2e1d6de1879a2bd3589d221f5685590c72b542c797286fd911a20fa","target":"graph","created_at":"2026-07-05T01:18:49Z","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/2001.10277/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the non-relativistic expansion of general relativity coupled to matter. This is done by expanding the metric and matter fields analytically in powers of $1/c^2$ where $c$ is the speed of light. In order to perform this expansion it is shown to be very convenient to rewrite general relativity in terms of a timelike vielbein and a spatial metric. This expansion can be performed covariantly and off shell. We study the expansion of the Einstein-Hilbert action up to next-to-next-to-leading order. We couple this to different forms of matter: point particles, perfect fluids, scalar fields (i","authors_text":"Dennis Hansen, Jelle Hartong, Niels A. Obers","cross_cats":["hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-01-28T11:47:30Z","title":"Non-Relativistic Gravity and its Coupling to Matter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.10277","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":"sha256:7569149110f7ab33fc1d04dbd78cacae03df3953cb621dcd234836192d1510a4","target":"record","created_at":"2026-07-05T01:18:49Z","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":"5885ff1e4a31f1a65e423da05cebefa75db79ffa6ff2de7bd34951e97c5f500d","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-01-28T11:47:30Z","title_canon_sha256":"47260f48915cfd89982fadb32a059d89344a49a1c0f1b5f9880fe7488e53c53b"},"schema_version":"1.0","source":{"id":"2001.10277","kind":"arxiv","version":2}},"canonical_sha256":"ed57a562cdae21ce35dde6411b79c6bfb949ab04464b5b96f983255cd2e25b6c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ed57a562cdae21ce35dde6411b79c6bfb949ab04464b5b96f983255cd2e25b6c","first_computed_at":"2026-07-05T01:18:49.634733Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:18:49.634733Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"f9gYIe9sp8fGcEiYKR2pyTIHMSNDCiLsKQLV1kP6BwE1qJtqn6t4t4jLMFXeOJ2wt1vf8LJBwes18lqEAedUBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:18:49.635223Z","signed_message":"canonical_sha256_bytes"},"source_id":"2001.10277","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7569149110f7ab33fc1d04dbd78cacae03df3953cb621dcd234836192d1510a4","sha256:5b9ac2afa2e1d6de1879a2bd3589d221f5685590c72b542c797286fd911a20fa"],"state_sha256":"646ce65f30b2fec6050edffaee5e8859ccd53ff5d28689d2259b66ffae78bbe2"}