{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:UY4XFCL2Z4SYAB2FBIFXPEJZEJ","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":"34d45d5bb787a044df11f9acc059282bc65a30dc53af109e6db4604f2f6cc234","cross_cats_sorted":["astro-ph","hep-th"],"license":"","primary_cat":"gr-qc","submitted_at":"2006-02-22T20:22:34Z","title_canon_sha256":"5dc4e24ec9b216404dbc4bbf435f24505fe8453a5cf2f30e2947f65226f0b3f4"},"schema_version":"1.0","source":{"id":"gr-qc/0602086","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"gr-qc/0602086","created_at":"2026-07-04T15:19:44Z"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/0602086v2","created_at":"2026-07-04T15:19:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/0602086","created_at":"2026-07-04T15:19:44Z"},{"alias_kind":"pith_short_12","alias_value":"UY4XFCL2Z4SY","created_at":"2026-07-04T15:19:44Z"},{"alias_kind":"pith_short_16","alias_value":"UY4XFCL2Z4SYAB2F","created_at":"2026-07-04T15:19:44Z"},{"alias_kind":"pith_short_8","alias_value":"UY4XFCL2","created_at":"2026-07-04T15:19:44Z"}],"graph_snapshots":[{"event_id":"sha256:29edbe645156669a4e300523c1b94d64fdba38412c2af55dd9c99ccf7d1cc7c7","target":"graph","created_at":"2026-07-04T15:19:44Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/gr-qc/0602086/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Some long standing issues concerning the quantum nature of the big bang are resolved in the context of homogeneous isotropic models with a scalar field. Specifically, the known results on the resolution of the big bang singularity in loop quantum cosmology are significantly extended as follows: i) the scalar field is shown to serve as an internal clock, thereby providing a detailed realization of the `emergent time' idea; ii) the physical Hilbert space, Dirac observables and semi-classical states are constructed rigorously; iii) the Hamiltonian constraint is solved numerically to show that the","authors_text":"Abhay Ashtekar, Parampreet Singh, Tomasz Pawlowski","cross_cats":["astro-ph","hep-th"],"headline":"","license":"","primary_cat":"gr-qc","submitted_at":"2006-02-22T20:22:34Z","title":"Quantum Nature of the Big Bang"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/0602086","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":"sha256:97ea340604bf945646f6eccce968f6731ac8567101426fcd8439e9eb32dc7386","target":"record","created_at":"2026-07-04T15:19:44Z","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":"34d45d5bb787a044df11f9acc059282bc65a30dc53af109e6db4604f2f6cc234","cross_cats_sorted":["astro-ph","hep-th"],"license":"","primary_cat":"gr-qc","submitted_at":"2006-02-22T20:22:34Z","title_canon_sha256":"5dc4e24ec9b216404dbc4bbf435f24505fe8453a5cf2f30e2947f65226f0b3f4"},"schema_version":"1.0","source":{"id":"gr-qc/0602086","kind":"arxiv","version":2}},"canonical_sha256":"a63972897acf258007450a0b779139227e130a127752a2c033f9f5f53245c820","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a63972897acf258007450a0b779139227e130a127752a2c033f9f5f53245c820","first_computed_at":"2026-07-04T15:19:44.680481Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:19:44.680481Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4259bbU9jkIB+MhEv7cIIf0hZ9pI0EihRR62su2F/z701U3SPro31bEiSMltZT7me0Ftwn6O4iIHtxWMWLqTCg==","signature_status":"signed_v1","signed_at":"2026-07-04T15:19:44.680921Z","signed_message":"canonical_sha256_bytes"},"source_id":"gr-qc/0602086","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:97ea340604bf945646f6eccce968f6731ac8567101426fcd8439e9eb32dc7386","sha256:29edbe645156669a4e300523c1b94d64fdba38412c2af55dd9c99ccf7d1cc7c7"],"state_sha256":"2bda93a83a6b679ebcc26af9c2683e764c07be999fefd694f331b1c3fbb148c4"}