{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:Z2HFEUI3YB2V4EJERPS7CXK4ND","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":"4c222b18bfae618b72c554dc66ac942adba3425d39f698424c5d226eab7a6479","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2011-03-23T19:39:19Z","title_canon_sha256":"1855b560291c7a56e6c3f8921966277fd9a9372540d123fa218e44f936f1712c"},"schema_version":"1.0","source":{"id":"1103.4602","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.4602","created_at":"2026-05-18T03:37:05Z"},{"alias_kind":"arxiv_version","alias_value":"1103.4602v3","created_at":"2026-05-18T03:37:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.4602","created_at":"2026-05-18T03:37:05Z"},{"alias_kind":"pith_short_12","alias_value":"Z2HFEUI3YB2V","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"Z2HFEUI3YB2V4EJE","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"Z2HFEUI3","created_at":"2026-05-18T12:26:47Z"}],"graph_snapshots":[{"event_id":"sha256:15b5954e7125d227b869a69a90d6f25057d45d90f5411125de6e29862b417588","target":"graph","created_at":"2026-05-18T03:37:05Z","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 consider spinfoam quantum gravity. We show in a simple case that the amplitude projects over a nontrivial (curved) classical geometry. This suggests that, at least for spinfoams without bubbles and for large values of the boundary spins, the amplitude takes the form of a path integral over Regge metrics, thus enforcing discrete Einstein equations in the classical limit. The result relies crucially on a new interpretation of the semiclassical limit for the amplitudes truncated to a fixed 2-complex.","authors_text":"Claudio Perini, Elena Magliaro","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2011-03-23T19:39:19Z","title":"Curvature in spinfoams"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.4602","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":"sha256:653aa6c4563ace121b1186e60027698928576102d8c6f8dd5f12be46d8cf9730","target":"record","created_at":"2026-05-18T03:37:05Z","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":"4c222b18bfae618b72c554dc66ac942adba3425d39f698424c5d226eab7a6479","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2011-03-23T19:39:19Z","title_canon_sha256":"1855b560291c7a56e6c3f8921966277fd9a9372540d123fa218e44f936f1712c"},"schema_version":"1.0","source":{"id":"1103.4602","kind":"arxiv","version":3}},"canonical_sha256":"ce8e52511bc0755e11248be5f15d5c68ce59fdc3b47809636d14a363ea19e309","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ce8e52511bc0755e11248be5f15d5c68ce59fdc3b47809636d14a363ea19e309","first_computed_at":"2026-05-18T03:37:05.868290Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:37:05.868290Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OhAJZPcmq601X0XgIofsGv2afoJdywxQHf8hZaAOwF2qY/Q/bCITlfP0u0ZKN31l+ItCfDZ72LHflawJLN8vDw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:37:05.868957Z","signed_message":"canonical_sha256_bytes"},"source_id":"1103.4602","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:653aa6c4563ace121b1186e60027698928576102d8c6f8dd5f12be46d8cf9730","sha256:15b5954e7125d227b869a69a90d6f25057d45d90f5411125de6e29862b417588"],"state_sha256":"af943fb7c51166dd13b192681bcddced540c6bc69c79fac26c4a9d8f2e486b68"}