{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:4PT3FTAQT77DZQJNVAPBD5Q5QA","short_pith_number":"pith:4PT3FTAQ","canonical_record":{"source":{"id":"1308.5954","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-08-27T19:19:22Z","cross_cats_sorted":[],"title_canon_sha256":"d4727f2ec93fe8b9a53df0a15f06238956b6efebbd3497054e6484c9c15b1046","abstract_canon_sha256":"9823bcb7852a9dc0edc77d25fb125e8dad5e0d4c829f4d45db13fe196dc9f611"},"schema_version":"1.0"},"canonical_sha256":"e3e7b2cc109ffe3cc12da81e11f61d801debd6ac7a291104f4610e7153d79e51","source":{"kind":"arxiv","id":"1308.5954","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.5954","created_at":"2026-05-18T03:00:58Z"},{"alias_kind":"arxiv_version","alias_value":"1308.5954v1","created_at":"2026-05-18T03:00:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.5954","created_at":"2026-05-18T03:00:58Z"},{"alias_kind":"pith_short_12","alias_value":"4PT3FTAQT77D","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"4PT3FTAQT77DZQJN","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"4PT3FTAQ","created_at":"2026-05-18T12:27:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:4PT3FTAQT77DZQJNVAPBD5Q5QA","target":"record","payload":{"canonical_record":{"source":{"id":"1308.5954","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-08-27T19:19:22Z","cross_cats_sorted":[],"title_canon_sha256":"d4727f2ec93fe8b9a53df0a15f06238956b6efebbd3497054e6484c9c15b1046","abstract_canon_sha256":"9823bcb7852a9dc0edc77d25fb125e8dad5e0d4c829f4d45db13fe196dc9f611"},"schema_version":"1.0"},"canonical_sha256":"e3e7b2cc109ffe3cc12da81e11f61d801debd6ac7a291104f4610e7153d79e51","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:00:58.535085Z","signature_b64":"iLdHc+vLV/ci/Xd8NCcEvYuttTRV/PEFm7JkeQIpra4MQVkx4p999onlRqPXdZomsrEVwFi77AKeiK1ZkLv7AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e3e7b2cc109ffe3cc12da81e11f61d801debd6ac7a291104f4610e7153d79e51","last_reissued_at":"2026-05-18T03:00:58.534569Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:00:58.534569Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1308.5954","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:00:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jcMu94v6WP3TXOtoI0ZiQ0/2QuwBtTrhDYLqTpJ56Xud6DKXHXPJ0I0SRKwFLznV3iW5sfN0XSsCm8gXUyZLCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T04:42:38.767998Z"},"content_sha256":"a3159beac56b14256a002c517059dbda7184d9806725b07484a4eec2a4ee0e87","schema_version":"1.0","event_id":"sha256:a3159beac56b14256a002c517059dbda7184d9806725b07484a4eec2a4ee0e87"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:4PT3FTAQT77DZQJNVAPBD5Q5QA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Backreaction of a massless minimally coupled scalar field from inflationary quantum fluctuations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Drazen Glavan, Tomislav Prokopec, Vasileios Prymidis","submitted_at":"2013-08-27T19:19:22Z","abstract_excerpt":"In this paper we study a massless, minimally coupled scalar field in a FLRW spacetime with periods of different constant deceleration parameter. We assume the Bunch-Davies vacuum during inflation and then use a sudden matching approximation to match it onto radiation era and subsequently onto matter era. We then proceed to calculate the one-loop energy-momentum tensor from the inflationary quantum vacuum fluctuations in different eras. The energy-momentum tensor has the form of an ideal (quantum) fluid, characterized by an equation of state. When compared with the background, far away from the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.5954","kind":"arxiv","version":1},"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":"2026-05-18T03:00:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7q87lHxCl/fSeBFVrFGFxZDF1740V8LflHkXwKkblWFT3fkFKdJuxC4QwKZEZ4VCw4/pmaY9ztl5ozxNc8Q9BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T04:42:38.769119Z"},"content_sha256":"988a9bec8986a082e6c17e12da3ddbe4be46adc84abbae6e356acbbb493a396f","schema_version":"1.0","event_id":"sha256:988a9bec8986a082e6c17e12da3ddbe4be46adc84abbae6e356acbbb493a396f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4PT3FTAQT77DZQJNVAPBD5Q5QA/bundle.json","state_url":"https://pith.science/pith/4PT3FTAQT77DZQJNVAPBD5Q5QA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4PT3FTAQT77DZQJNVAPBD5Q5QA/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":"2026-05-25T04:42:38Z","links":{"resolver":"https://pith.science/pith/4PT3FTAQT77DZQJNVAPBD5Q5QA","bundle":"https://pith.science/pith/4PT3FTAQT77DZQJNVAPBD5Q5QA/bundle.json","state":"https://pith.science/pith/4PT3FTAQT77DZQJNVAPBD5Q5QA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4PT3FTAQT77DZQJNVAPBD5Q5QA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:4PT3FTAQT77DZQJNVAPBD5Q5QA","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":"9823bcb7852a9dc0edc77d25fb125e8dad5e0d4c829f4d45db13fe196dc9f611","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-08-27T19:19:22Z","title_canon_sha256":"d4727f2ec93fe8b9a53df0a15f06238956b6efebbd3497054e6484c9c15b1046"},"schema_version":"1.0","source":{"id":"1308.5954","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.5954","created_at":"2026-05-18T03:00:58Z"},{"alias_kind":"arxiv_version","alias_value":"1308.5954v1","created_at":"2026-05-18T03:00:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.5954","created_at":"2026-05-18T03:00:58Z"},{"alias_kind":"pith_short_12","alias_value":"4PT3FTAQT77D","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"4PT3FTAQT77DZQJN","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"4PT3FTAQ","created_at":"2026-05-18T12:27:34Z"}],"graph_snapshots":[{"event_id":"sha256:988a9bec8986a082e6c17e12da3ddbe4be46adc84abbae6e356acbbb493a396f","target":"graph","created_at":"2026-05-18T03:00:58Z","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":"In this paper we study a massless, minimally coupled scalar field in a FLRW spacetime with periods of different constant deceleration parameter. We assume the Bunch-Davies vacuum during inflation and then use a sudden matching approximation to match it onto radiation era and subsequently onto matter era. We then proceed to calculate the one-loop energy-momentum tensor from the inflationary quantum vacuum fluctuations in different eras. The energy-momentum tensor has the form of an ideal (quantum) fluid, characterized by an equation of state. When compared with the background, far away from the","authors_text":"Drazen Glavan, Tomislav Prokopec, Vasileios Prymidis","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-08-27T19:19:22Z","title":"Backreaction of a massless minimally coupled scalar field from inflationary quantum fluctuations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.5954","kind":"arxiv","version":1},"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:a3159beac56b14256a002c517059dbda7184d9806725b07484a4eec2a4ee0e87","target":"record","created_at":"2026-05-18T03:00:58Z","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":"9823bcb7852a9dc0edc77d25fb125e8dad5e0d4c829f4d45db13fe196dc9f611","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-08-27T19:19:22Z","title_canon_sha256":"d4727f2ec93fe8b9a53df0a15f06238956b6efebbd3497054e6484c9c15b1046"},"schema_version":"1.0","source":{"id":"1308.5954","kind":"arxiv","version":1}},"canonical_sha256":"e3e7b2cc109ffe3cc12da81e11f61d801debd6ac7a291104f4610e7153d79e51","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e3e7b2cc109ffe3cc12da81e11f61d801debd6ac7a291104f4610e7153d79e51","first_computed_at":"2026-05-18T03:00:58.534569Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:00:58.534569Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iLdHc+vLV/ci/Xd8NCcEvYuttTRV/PEFm7JkeQIpra4MQVkx4p999onlRqPXdZomsrEVwFi77AKeiK1ZkLv7AA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:00:58.535085Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.5954","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a3159beac56b14256a002c517059dbda7184d9806725b07484a4eec2a4ee0e87","sha256:988a9bec8986a082e6c17e12da3ddbe4be46adc84abbae6e356acbbb493a396f"],"state_sha256":"3f1fa2a55e29e74118e9fa392b9276eb4b57e02be72c954634254f518493f885"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u5sHzQPgZMdpDlW2HiuP/1jrKB34aNHEWVXU/zB/+sdBYa43/e2UuDDJRBWRLX52xXijYnTzrZ8vnK28eRYfDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T04:42:38.771902Z","bundle_sha256":"fe09f44c0bdef3704cad143117d5a54bb001bbe9af18d3253e923b5e373555ac"}}