{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:HLZK5I4VZMRUBBV33X5DIADXCI","short_pith_number":"pith:HLZK5I4V","canonical_record":{"source":{"id":"1410.0644","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-10-02T18:56:50Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"0bb33cd29b32a197e5b04136550f38611cdbe43e816fc54f446a6035054fdc48","abstract_canon_sha256":"3dd6687d45dabfda057ff9e1c6fc0dfa059ae4fe302c3c12a4bfc042498ac208"},"schema_version":"1.0"},"canonical_sha256":"3af2aea395cb234086bbddfa3400771223874273e033e252a0d2e16c9392a83b","source":{"kind":"arxiv","id":"1410.0644","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.0644","created_at":"2026-05-18T01:41:53Z"},{"alias_kind":"arxiv_version","alias_value":"1410.0644v2","created_at":"2026-05-18T01:41:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.0644","created_at":"2026-05-18T01:41:53Z"},{"alias_kind":"pith_short_12","alias_value":"HLZK5I4VZMRU","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"HLZK5I4VZMRUBBV3","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"HLZK5I4V","created_at":"2026-05-18T12:28:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:HLZK5I4VZMRUBBV33X5DIADXCI","target":"record","payload":{"canonical_record":{"source":{"id":"1410.0644","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-10-02T18:56:50Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"0bb33cd29b32a197e5b04136550f38611cdbe43e816fc54f446a6035054fdc48","abstract_canon_sha256":"3dd6687d45dabfda057ff9e1c6fc0dfa059ae4fe302c3c12a4bfc042498ac208"},"schema_version":"1.0"},"canonical_sha256":"3af2aea395cb234086bbddfa3400771223874273e033e252a0d2e16c9392a83b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:53.141504Z","signature_b64":"jRycOGJOlhOOtHle/LJuhNShYVybsiPZBdFEVGKfJ8if09WC6eyiaEMNQuJYc0mo3fxwKFAcCgAjy9O03JQUAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3af2aea395cb234086bbddfa3400771223874273e033e252a0d2e16c9392a83b","last_reissued_at":"2026-05-18T01:41:53.140896Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:53.140896Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1410.0644","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:41:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8ifeMv3zZK8ZzMoXhKe/iwWwMLTogRP5Jc2z3wuMTNAas/wSjIJnOTJHvVElipQ+WSMsEpjU5wlH6cZj8UkHBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T17:44:24.460541Z"},"content_sha256":"51e2a4b7c0c23b566c1c0ac9c69a2cff208481a84f38a30f2222ad3b7b692a34","schema_version":"1.0","event_id":"sha256:51e2a4b7c0c23b566c1c0ac9c69a2cff208481a84f38a30f2222ad3b7b692a34"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:HLZK5I4VZMRUBBV33X5DIADXCI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A new mechanism of realizing inflationary universe with recourse to backreaction of quantized free fields -- Inflation without inflaton --","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Hikaru Kawai, Masao Ninomiya, Yoshinobu Habara","submitted_at":"2014-10-02T18:56:50Z","abstract_excerpt":"It is shown that the inflationary era in early universe is realized due to the effect of backreaction of quantized matter fields. In fact we start by quantizing a free scalar field in the Friedmann-Robertson-Walker space-time, and the field is fluctuating quantum mechanically around the bottom of the mass potential. We then obtain the vacuum expectation value of the energy density of the scalar field as a functional of the scale factor $a(t)$ of the universe. By plugging it into the Einstein equation, a self-consistent equation is established in which the matter fields determine the time evolu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.0644","kind":"arxiv","version":2},"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":"2026-05-18T01:41:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zPz5xQz//AwNEu4A0O6PdUBRRaxNU3WUf5Ms0jn+Iu15zKXSy+M+aEtP8dGf5OK/KioXAMtTDo/KNBSbqLkhCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T17:44:24.461230Z"},"content_sha256":"50b4f4931ae72b1637304cdf3e340bcfe0cd5dbd210e39a410cb31acfdc3adb3","schema_version":"1.0","event_id":"sha256:50b4f4931ae72b1637304cdf3e340bcfe0cd5dbd210e39a410cb31acfdc3adb3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HLZK5I4VZMRUBBV33X5DIADXCI/bundle.json","state_url":"https://pith.science/pith/HLZK5I4VZMRUBBV33X5DIADXCI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HLZK5I4VZMRUBBV33X5DIADXCI/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":"2026-05-28T17:44:24Z","links":{"resolver":"https://pith.science/pith/HLZK5I4VZMRUBBV33X5DIADXCI","bundle":"https://pith.science/pith/HLZK5I4VZMRUBBV33X5DIADXCI/bundle.json","state":"https://pith.science/pith/HLZK5I4VZMRUBBV33X5DIADXCI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HLZK5I4VZMRUBBV33X5DIADXCI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:HLZK5I4VZMRUBBV33X5DIADXCI","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":"3dd6687d45dabfda057ff9e1c6fc0dfa059ae4fe302c3c12a4bfc042498ac208","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-10-02T18:56:50Z","title_canon_sha256":"0bb33cd29b32a197e5b04136550f38611cdbe43e816fc54f446a6035054fdc48"},"schema_version":"1.0","source":{"id":"1410.0644","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.0644","created_at":"2026-05-18T01:41:53Z"},{"alias_kind":"arxiv_version","alias_value":"1410.0644v2","created_at":"2026-05-18T01:41:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.0644","created_at":"2026-05-18T01:41:53Z"},{"alias_kind":"pith_short_12","alias_value":"HLZK5I4VZMRU","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"HLZK5I4VZMRUBBV3","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"HLZK5I4V","created_at":"2026-05-18T12:28:30Z"}],"graph_snapshots":[{"event_id":"sha256:50b4f4931ae72b1637304cdf3e340bcfe0cd5dbd210e39a410cb31acfdc3adb3","target":"graph","created_at":"2026-05-18T01:41:53Z","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":"It is shown that the inflationary era in early universe is realized due to the effect of backreaction of quantized matter fields. In fact we start by quantizing a free scalar field in the Friedmann-Robertson-Walker space-time, and the field is fluctuating quantum mechanically around the bottom of the mass potential. We then obtain the vacuum expectation value of the energy density of the scalar field as a functional of the scale factor $a(t)$ of the universe. By plugging it into the Einstein equation, a self-consistent equation is established in which the matter fields determine the time evolu","authors_text":"Hikaru Kawai, Masao Ninomiya, Yoshinobu Habara","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-10-02T18:56:50Z","title":"A new mechanism of realizing inflationary universe with recourse to backreaction of quantized free fields -- Inflation without inflaton --"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.0644","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":"sha256:51e2a4b7c0c23b566c1c0ac9c69a2cff208481a84f38a30f2222ad3b7b692a34","target":"record","created_at":"2026-05-18T01:41:53Z","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":"3dd6687d45dabfda057ff9e1c6fc0dfa059ae4fe302c3c12a4bfc042498ac208","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-10-02T18:56:50Z","title_canon_sha256":"0bb33cd29b32a197e5b04136550f38611cdbe43e816fc54f446a6035054fdc48"},"schema_version":"1.0","source":{"id":"1410.0644","kind":"arxiv","version":2}},"canonical_sha256":"3af2aea395cb234086bbddfa3400771223874273e033e252a0d2e16c9392a83b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3af2aea395cb234086bbddfa3400771223874273e033e252a0d2e16c9392a83b","first_computed_at":"2026-05-18T01:41:53.140896Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:53.140896Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jRycOGJOlhOOtHle/LJuhNShYVybsiPZBdFEVGKfJ8if09WC6eyiaEMNQuJYc0mo3fxwKFAcCgAjy9O03JQUAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:53.141504Z","signed_message":"canonical_sha256_bytes"},"source_id":"1410.0644","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:51e2a4b7c0c23b566c1c0ac9c69a2cff208481a84f38a30f2222ad3b7b692a34","sha256:50b4f4931ae72b1637304cdf3e340bcfe0cd5dbd210e39a410cb31acfdc3adb3"],"state_sha256":"2a647a2a0c45a8c822be208d3e3e27781f200db698f6737b4e471af37da256c4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FWnMX0aZIZspJromI0zPbw4Pf0WUFJZWdmT0jfNBuhRPYlxXor0ZDwRBuWF+J0TNGaV9T+0+vo2+05O4TUNDAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T17:44:24.466854Z","bundle_sha256":"8ccdc27336336381134456e98b60fabc8f6536b889e546a35507d63c48b4ccb5"}}