{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:LA6MWW44VGMJ7C3BJXFV3M2BDN","short_pith_number":"pith:LA6MWW44","canonical_record":{"source":{"id":"0809.5142","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2008-09-30T09:19:52Z","cross_cats_sorted":["astro-ph","hep-th"],"title_canon_sha256":"d582ae73f7fc454cf40389506063e62bd81c4f235062137c3440df40dcd3ef57","abstract_canon_sha256":"80f6093eea87b80c7b8ff88be2f6686209c73607d3a0785f5d791cb27f5bb35f"},"schema_version":"1.0"},"canonical_sha256":"583ccb5b9ca9989f8b614dcb5db3411b4249252564c6dfcc68e59ca4dc560a7d","source":{"kind":"arxiv","id":"0809.5142","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0809.5142","created_at":"2026-07-04T15:38:25Z"},{"alias_kind":"arxiv_version","alias_value":"0809.5142v2","created_at":"2026-07-04T15:38:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0809.5142","created_at":"2026-07-04T15:38:25Z"},{"alias_kind":"pith_short_12","alias_value":"LA6MWW44VGMJ","created_at":"2026-07-04T15:38:25Z"},{"alias_kind":"pith_short_16","alias_value":"LA6MWW44VGMJ7C3B","created_at":"2026-07-04T15:38:25Z"},{"alias_kind":"pith_short_8","alias_value":"LA6MWW44","created_at":"2026-07-04T15:38:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:LA6MWW44VGMJ7C3BJXFV3M2BDN","target":"record","payload":{"canonical_record":{"source":{"id":"0809.5142","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2008-09-30T09:19:52Z","cross_cats_sorted":["astro-ph","hep-th"],"title_canon_sha256":"d582ae73f7fc454cf40389506063e62bd81c4f235062137c3440df40dcd3ef57","abstract_canon_sha256":"80f6093eea87b80c7b8ff88be2f6686209c73607d3a0785f5d791cb27f5bb35f"},"schema_version":"1.0"},"canonical_sha256":"583ccb5b9ca9989f8b614dcb5db3411b4249252564c6dfcc68e59ca4dc560a7d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:38:25.158406Z","signature_b64":"X1qpPR2+bi45k0Jn0G2edu4YjGUMfDLqaaCW+3faIqBXAq/fXUQ3TNx54dbQUSN2PO2WYbMVZBaXJVMY2dckCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"583ccb5b9ca9989f8b614dcb5db3411b4249252564c6dfcc68e59ca4dc560a7d","last_reissued_at":"2026-07-04T15:38:25.158008Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:38:25.158008Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0809.5142","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":"2026-07-04T15:38:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QItb97BOnj1Tj3NuElU2IXoMiFGJo4Ev515qNIY8TxbpmFXbVRMATqliBqtP7crTfpngrrShNFvlEfXJNQD2AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T12:07:00.725144Z"},"content_sha256":"df54d6e73b28c2ffa50ad094c3f7d29192a90f9782476194bfa04f9512047748","schema_version":"1.0","event_id":"sha256:df54d6e73b28c2ffa50ad094c3f7d29192a90f9782476194bfa04f9512047748"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:LA6MWW44VGMJ7C3BJXFV3M2BDN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Effects of particle production during inflation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph","hep-th"],"primary_cat":"gr-qc","authors_text":"Antonio Enea Romano, Misao Sasaki","submitted_at":"2008-09-30T09:19:52Z","abstract_excerpt":"The impact of particle production during inflation on the primordial curvature perturbation spectrum is investigated both analytically and numerically. We obtain an oscillatory behavior on small scales, while on large scales the spectrum is unaffected. The amplitude of the oscillations is proportional to the number of coupled fields, their mass, and the square of the coupling constant. The oscillations are due a discontinuity in the second time derivative of the inflaton, arising from a temporary violation of the slow-roll conditions. A similar effect on the power spectrum should be produced a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0809.5142","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0809.5142/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T15:38:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c8fbYQH91aQkLddmWrd6cOE5XvHlzLb6DDsJAGlr6sEFPpArkCIb+r407aPkleLms55tRoYWw23ABpwHNHpRDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T12:07:00.725638Z"},"content_sha256":"39ebbbad619fae4bcffc5cd0ff6337c7a38d94a4fabe6d6e05dc7ca018e2cade","schema_version":"1.0","event_id":"sha256:39ebbbad619fae4bcffc5cd0ff6337c7a38d94a4fabe6d6e05dc7ca018e2cade"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LA6MWW44VGMJ7C3BJXFV3M2BDN/bundle.json","state_url":"https://pith.science/pith/LA6MWW44VGMJ7C3BJXFV3M2BDN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LA6MWW44VGMJ7C3BJXFV3M2BDN/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":"2026-08-14T12:07:00Z","links":{"resolver":"https://pith.science/pith/LA6MWW44VGMJ7C3BJXFV3M2BDN","bundle":"https://pith.science/pith/LA6MWW44VGMJ7C3BJXFV3M2BDN/bundle.json","state":"https://pith.science/pith/LA6MWW44VGMJ7C3BJXFV3M2BDN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LA6MWW44VGMJ7C3BJXFV3M2BDN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:LA6MWW44VGMJ7C3BJXFV3M2BDN","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":"80f6093eea87b80c7b8ff88be2f6686209c73607d3a0785f5d791cb27f5bb35f","cross_cats_sorted":["astro-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2008-09-30T09:19:52Z","title_canon_sha256":"d582ae73f7fc454cf40389506063e62bd81c4f235062137c3440df40dcd3ef57"},"schema_version":"1.0","source":{"id":"0809.5142","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0809.5142","created_at":"2026-07-04T15:38:25Z"},{"alias_kind":"arxiv_version","alias_value":"0809.5142v2","created_at":"2026-07-04T15:38:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0809.5142","created_at":"2026-07-04T15:38:25Z"},{"alias_kind":"pith_short_12","alias_value":"LA6MWW44VGMJ","created_at":"2026-07-04T15:38:25Z"},{"alias_kind":"pith_short_16","alias_value":"LA6MWW44VGMJ7C3B","created_at":"2026-07-04T15:38:25Z"},{"alias_kind":"pith_short_8","alias_value":"LA6MWW44","created_at":"2026-07-04T15:38:25Z"}],"graph_snapshots":[{"event_id":"sha256:39ebbbad619fae4bcffc5cd0ff6337c7a38d94a4fabe6d6e05dc7ca018e2cade","target":"graph","created_at":"2026-07-04T15:38:25Z","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/0809.5142/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The impact of particle production during inflation on the primordial curvature perturbation spectrum is investigated both analytically and numerically. We obtain an oscillatory behavior on small scales, while on large scales the spectrum is unaffected. The amplitude of the oscillations is proportional to the number of coupled fields, their mass, and the square of the coupling constant. The oscillations are due a discontinuity in the second time derivative of the inflaton, arising from a temporary violation of the slow-roll conditions. A similar effect on the power spectrum should be produced a","authors_text":"Antonio Enea Romano, Misao Sasaki","cross_cats":["astro-ph","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2008-09-30T09:19:52Z","title":"Effects of particle production during inflation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0809.5142","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:df54d6e73b28c2ffa50ad094c3f7d29192a90f9782476194bfa04f9512047748","target":"record","created_at":"2026-07-04T15:38:25Z","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":"80f6093eea87b80c7b8ff88be2f6686209c73607d3a0785f5d791cb27f5bb35f","cross_cats_sorted":["astro-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2008-09-30T09:19:52Z","title_canon_sha256":"d582ae73f7fc454cf40389506063e62bd81c4f235062137c3440df40dcd3ef57"},"schema_version":"1.0","source":{"id":"0809.5142","kind":"arxiv","version":2}},"canonical_sha256":"583ccb5b9ca9989f8b614dcb5db3411b4249252564c6dfcc68e59ca4dc560a7d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"583ccb5b9ca9989f8b614dcb5db3411b4249252564c6dfcc68e59ca4dc560a7d","first_computed_at":"2026-07-04T15:38:25.158008Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:38:25.158008Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"X1qpPR2+bi45k0Jn0G2edu4YjGUMfDLqaaCW+3faIqBXAq/fXUQ3TNx54dbQUSN2PO2WYbMVZBaXJVMY2dckCA==","signature_status":"signed_v1","signed_at":"2026-07-04T15:38:25.158406Z","signed_message":"canonical_sha256_bytes"},"source_id":"0809.5142","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:df54d6e73b28c2ffa50ad094c3f7d29192a90f9782476194bfa04f9512047748","sha256:39ebbbad619fae4bcffc5cd0ff6337c7a38d94a4fabe6d6e05dc7ca018e2cade"],"state_sha256":"f28c18c30b47eef7e47ea70b472de2abf4c2604f7bfd48e960c249692fd83f95"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kkrl5E6iNKQAjoHutmL5c88rFF7Z4hvHVmi6asdKXWClpkVrCB2GfOxPfAUmfp/COUmkf7lfos/i7tMnUvasCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T12:07:00.730311Z","bundle_sha256":"e478d48268cbeba795fc178141404262786ce2e573814f1d5e3f9e1fb27a1da4"}}