{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:RHYZD44M3URBUSQCEXLGRMHM4C","short_pith_number":"pith:RHYZD44M","canonical_record":{"source":{"id":"1208.6312","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2012-08-30T20:56:30Z","cross_cats_sorted":[],"title_canon_sha256":"53572d601d868057e38e9c548f243358f0d3239661a14cf7a0ce26884d1986d7","abstract_canon_sha256":"a2dcb69d4bf88094330b8905b479f299ca8d86622225fae3226f65feb99b68a2"},"schema_version":"1.0"},"canonical_sha256":"89f191f38cdd221a4a0225d668b0ece085084561758aec432ba1e5f4db5149fb","source":{"kind":"arxiv","id":"1208.6312","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.6312","created_at":"2026-05-18T01:54:49Z"},{"alias_kind":"arxiv_version","alias_value":"1208.6312v3","created_at":"2026-05-18T01:54:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.6312","created_at":"2026-05-18T01:54:49Z"},{"alias_kind":"pith_short_12","alias_value":"RHYZD44M3URB","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_16","alias_value":"RHYZD44M3URBUSQC","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_8","alias_value":"RHYZD44M","created_at":"2026-05-18T12:27:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:RHYZD44M3URBUSQCEXLGRMHM4C","target":"record","payload":{"canonical_record":{"source":{"id":"1208.6312","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2012-08-30T20:56:30Z","cross_cats_sorted":[],"title_canon_sha256":"53572d601d868057e38e9c548f243358f0d3239661a14cf7a0ce26884d1986d7","abstract_canon_sha256":"a2dcb69d4bf88094330b8905b479f299ca8d86622225fae3226f65feb99b68a2"},"schema_version":"1.0"},"canonical_sha256":"89f191f38cdd221a4a0225d668b0ece085084561758aec432ba1e5f4db5149fb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:54:49.302711Z","signature_b64":"Q487w73eV6EMrxmy7QaXJAXMhhmTpdZoW5CcRnQ/YvazhcMFl5i5Gtd5GJI34xK1dYKvHuhShqUiMQK0V4QXCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"89f191f38cdd221a4a0225d668b0ece085084561758aec432ba1e5f4db5149fb","last_reissued_at":"2026-05-18T01:54:49.301995Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:54:49.301995Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1208.6312","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:54:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"llBn7CJnP1iOnRPQNGBPf8fimTlRR/2fJYHhMUq/xgo13Hk3cDBacHdtBoSnjREXCdr6hRF7HRlsyYrdZs6AAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T22:09:42.223256Z"},"content_sha256":"25d4bddc75512c9f67ae8c11e76c2cc3203d095f26b198ce69065cf4c8bee890","schema_version":"1.0","event_id":"sha256:25d4bddc75512c9f67ae8c11e76c2cc3203d095f26b198ce69065cf4c8bee890"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:RHYZD44M3URBUSQCEXLGRMHM4C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Parameterization and Reconstruction of Quasi Static Universe","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Jie Liu, Yun-Song Piao","submitted_at":"2012-08-30T20:56:30Z","abstract_excerpt":"We study a possibility of the fate of universe, in which there is neither the rip singularity, which results in the disintegration of bound systems, nor the endless expansion, instead the universe will be quasi static. We discuss the parameterization of the corresponding evolution and the reconstruction of the scalar field model. We find, with the parameterization consistent with the current observation, that the current universe might arrive at a quasi static phase after less than 20Gyr."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.6312","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:54:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zSdCgKU3HMtqN/d8rHpef+sE93ngJtaP1mq1r0DdMBt5SYB4Pbf6x3ru8QeWhXTXu6CY+K+e1a29biNBY5kMDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T22:09:42.224038Z"},"content_sha256":"748dbb01c0736c76bd41a15b606aab07df0e505d7357c39d5232ea371a10a438","schema_version":"1.0","event_id":"sha256:748dbb01c0736c76bd41a15b606aab07df0e505d7357c39d5232ea371a10a438"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RHYZD44M3URBUSQCEXLGRMHM4C/bundle.json","state_url":"https://pith.science/pith/RHYZD44M3URBUSQCEXLGRMHM4C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RHYZD44M3URBUSQCEXLGRMHM4C/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-05T22:09:42Z","links":{"resolver":"https://pith.science/pith/RHYZD44M3URBUSQCEXLGRMHM4C","bundle":"https://pith.science/pith/RHYZD44M3URBUSQCEXLGRMHM4C/bundle.json","state":"https://pith.science/pith/RHYZD44M3URBUSQCEXLGRMHM4C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RHYZD44M3URBUSQCEXLGRMHM4C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:RHYZD44M3URBUSQCEXLGRMHM4C","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":"a2dcb69d4bf88094330b8905b479f299ca8d86622225fae3226f65feb99b68a2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2012-08-30T20:56:30Z","title_canon_sha256":"53572d601d868057e38e9c548f243358f0d3239661a14cf7a0ce26884d1986d7"},"schema_version":"1.0","source":{"id":"1208.6312","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.6312","created_at":"2026-05-18T01:54:49Z"},{"alias_kind":"arxiv_version","alias_value":"1208.6312v3","created_at":"2026-05-18T01:54:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.6312","created_at":"2026-05-18T01:54:49Z"},{"alias_kind":"pith_short_12","alias_value":"RHYZD44M3URB","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_16","alias_value":"RHYZD44M3URBUSQC","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_8","alias_value":"RHYZD44M","created_at":"2026-05-18T12:27:20Z"}],"graph_snapshots":[{"event_id":"sha256:748dbb01c0736c76bd41a15b606aab07df0e505d7357c39d5232ea371a10a438","target":"graph","created_at":"2026-05-18T01:54:49Z","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"},"paper":{"abstract_excerpt":"We study a possibility of the fate of universe, in which there is neither the rip singularity, which results in the disintegration of bound systems, nor the endless expansion, instead the universe will be quasi static. We discuss the parameterization of the corresponding evolution and the reconstruction of the scalar field model. We find, with the parameterization consistent with the current observation, that the current universe might arrive at a quasi static phase after less than 20Gyr.","authors_text":"Jie Liu, Yun-Song Piao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2012-08-30T20:56:30Z","title":"Parameterization and Reconstruction of Quasi Static Universe"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.6312","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":"sha256:25d4bddc75512c9f67ae8c11e76c2cc3203d095f26b198ce69065cf4c8bee890","target":"record","created_at":"2026-05-18T01:54:49Z","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":"a2dcb69d4bf88094330b8905b479f299ca8d86622225fae3226f65feb99b68a2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2012-08-30T20:56:30Z","title_canon_sha256":"53572d601d868057e38e9c548f243358f0d3239661a14cf7a0ce26884d1986d7"},"schema_version":"1.0","source":{"id":"1208.6312","kind":"arxiv","version":3}},"canonical_sha256":"89f191f38cdd221a4a0225d668b0ece085084561758aec432ba1e5f4db5149fb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"89f191f38cdd221a4a0225d668b0ece085084561758aec432ba1e5f4db5149fb","first_computed_at":"2026-05-18T01:54:49.301995Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:54:49.301995Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Q487w73eV6EMrxmy7QaXJAXMhhmTpdZoW5CcRnQ/YvazhcMFl5i5Gtd5GJI34xK1dYKvHuhShqUiMQK0V4QXCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:54:49.302711Z","signed_message":"canonical_sha256_bytes"},"source_id":"1208.6312","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:25d4bddc75512c9f67ae8c11e76c2cc3203d095f26b198ce69065cf4c8bee890","sha256:748dbb01c0736c76bd41a15b606aab07df0e505d7357c39d5232ea371a10a438"],"state_sha256":"7fc70f1728405937495bf0f2f147b2bdd1465e876e80050e77d4acd1cac4c617"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oNxfBTKrkkDOaWXLlRG3gLz+q8w51yXiFRbmftddNypeJNe1/QPlQS8H/o63p46QVHJjAYgs6RAYuuypdTLpCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T22:09:42.227266Z","bundle_sha256":"180d2ed059dafd9469f02086621f688218272af9ac2824aff3ed41dab2b51eb5"}}