{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:TAK7RILLKLGDU2KYHUGVXNJNVI","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":"d4d77b75349acb78b63464f5222a682028720f41ef46f5da40fbf0677b31b8d7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2012-04-25T10:07:28Z","title_canon_sha256":"ec16cb09c8eafc673590b70b803fb3b3c45a2d58bc2f8b9302c2cf58533bb32f"},"schema_version":"1.0","source":{"id":"1204.5604","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.5604","created_at":"2026-05-18T02:43:37Z"},{"alias_kind":"arxiv_version","alias_value":"1204.5604v3","created_at":"2026-05-18T02:43:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.5604","created_at":"2026-05-18T02:43:37Z"},{"alias_kind":"pith_short_12","alias_value":"TAK7RILLKLGD","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"TAK7RILLKLGDU2KY","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"TAK7RILL","created_at":"2026-05-18T12:27:23Z"}],"graph_snapshots":[{"event_id":"sha256:b09970e098227b3e79a7c53079c445b7f4fe733b45a8da50205fc9a17ec8229c","target":"graph","created_at":"2026-05-18T02:43:37Z","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":"Different approaches to quantum cosmology are studied in order to deal with the future singularity avoidance problem. Our results show that these future singularities will persist but could take different forms. As an example we have studied the big rip which appear when one considers the state equation $P=\\omega\\rho$ with $\\omega<-1$, showing that it does not disappear in modified gravity. On the other hand, it is well-known that quantum geometric effects (holonomy corrections) in loop quantum cosmology introduce a quadratic modification, namely proportional to $\\rho^2$, in Friedmann's equati","authors_text":"Jaume de Haro","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2012-04-25T10:07:28Z","title":"Future singularity avoidance in phantom dark energy models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.5604","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":"sha256:5a3ba4709c957790a37fb0a066794a78180b03cc76f626ecfa3b98056140de56","target":"record","created_at":"2026-05-18T02:43:37Z","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":"d4d77b75349acb78b63464f5222a682028720f41ef46f5da40fbf0677b31b8d7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2012-04-25T10:07:28Z","title_canon_sha256":"ec16cb09c8eafc673590b70b803fb3b3c45a2d58bc2f8b9302c2cf58533bb32f"},"schema_version":"1.0","source":{"id":"1204.5604","kind":"arxiv","version":3}},"canonical_sha256":"9815f8a16b52cc3a69583d0d5bb52daa2a12eed6cdab797a135759a129301ab5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9815f8a16b52cc3a69583d0d5bb52daa2a12eed6cdab797a135759a129301ab5","first_computed_at":"2026-05-18T02:43:37.227923Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:43:37.227923Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Qw+YQaiO5dz3424j1A68siokmRhmFYSbipHq6dBeOKZ6MTmRSVRrelb/yVa7tNTSq8TWoC5aXgc3aFxpi7J0Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T02:43:37.228555Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.5604","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5a3ba4709c957790a37fb0a066794a78180b03cc76f626ecfa3b98056140de56","sha256:b09970e098227b3e79a7c53079c445b7f4fe733b45a8da50205fc9a17ec8229c"],"state_sha256":"62bedb0ef92acefd1606b6f76d6e9dcad3804a18e908afd0b10cc525e9244a7c"}