{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:7PNPFEX54IN4LGCIOVL3RDSETO","short_pith_number":"pith:7PNPFEX5","canonical_record":{"source":{"id":"0909.0751","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-09-04T00:36:20Z","cross_cats_sorted":["hep-ph","hep-th"],"title_canon_sha256":"204f62beff3918ce6afc9b3a12fecf2425466313676a1470620383c983e404dd","abstract_canon_sha256":"99dde107f43a4dcbe3adc89f162944bf2728941df14ff39788942f725edda636"},"schema_version":"1.0"},"canonical_sha256":"fbdaf292fde21bc598487557b88e449b99c725c40545bd65242dc70c56e48dce","source":{"kind":"arxiv","id":"0909.0751","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.0751","created_at":"2026-07-04T17:18:58Z"},{"alias_kind":"arxiv_version","alias_value":"0909.0751v3","created_at":"2026-07-04T17:18:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.0751","created_at":"2026-07-04T17:18:58Z"},{"alias_kind":"pith_short_12","alias_value":"7PNPFEX54IN4","created_at":"2026-07-04T17:18:58Z"},{"alias_kind":"pith_short_16","alias_value":"7PNPFEX54IN4LGCI","created_at":"2026-07-04T17:18:58Z"},{"alias_kind":"pith_short_8","alias_value":"7PNPFEX5","created_at":"2026-07-04T17:18:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:7PNPFEX54IN4LGCIOVL3RDSETO","target":"record","payload":{"canonical_record":{"source":{"id":"0909.0751","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-09-04T00:36:20Z","cross_cats_sorted":["hep-ph","hep-th"],"title_canon_sha256":"204f62beff3918ce6afc9b3a12fecf2425466313676a1470620383c983e404dd","abstract_canon_sha256":"99dde107f43a4dcbe3adc89f162944bf2728941df14ff39788942f725edda636"},"schema_version":"1.0"},"canonical_sha256":"fbdaf292fde21bc598487557b88e449b99c725c40545bd65242dc70c56e48dce","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:18:58.207968Z","signature_b64":"KbTdQJ0Rge55tFw0ArCbG36hkRqI0drY21YH3z78Og1EkqX+gXgWups3f14WyUkyDdKt0aEx2xqAbrEMiMAvDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fbdaf292fde21bc598487557b88e449b99c725c40545bd65242dc70c56e48dce","last_reissued_at":"2026-07-04T17:18:58.207450Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:18:58.207450Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0909.0751","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":"2026-07-04T17:18:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kuGPqrDk+v9SwWH0iuq2CHE/iXo14pkx90w1Vzd12m+BDK4/+6b/QNJ/ROAOFp/cfRlOLle9NiACKpsFHcUGCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-20T20:40:58.175124Z"},"content_sha256":"ba094d0608d3916b27092b38653f5d8554ccd979bb79df8767ff7ce8028f50d2","schema_version":"1.0","event_id":"sha256:ba094d0608d3916b27092b38653f5d8554ccd979bb79df8767ff7ce8028f50d2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:7PNPFEX54IN4LGCIOVL3RDSETO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Particle Production During Inflation: Observational Constraints and Signatures","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph","hep-th"],"primary_cat":"astro-ph.CO","authors_text":"Neil Barnaby, Zhiqi Huang","submitted_at":"2009-09-04T00:36:20Z","abstract_excerpt":"In a variety of inflation models the motion of the inflaton may trigger the production of some non-inflaton particles during inflation, for example via parametric resonance or a phase transition. Particle production during inflation leads to observables in the cosmological fluctuations, such as features in the primordial power spectrum and also nongaussianities. Here we focus on a prototype scenario with inflaton, \\phi, and iso-inflaton, \\chi, fields interacting during inflation via the coupling g^2 (\\phi-\\phi_0)^2\\chi^2. Since several previous investigations have hinted at the presence of loc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.0751","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0909.0751/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":"2026-07-04T17:18:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t32+TXRvFAUpUDXVoRQmworU2r0k3utJUuVlRtHbsFaPVaFw0pgwc7aB3wJAzliedp+7IwlUveWkBvC8LureDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-20T20:40:58.175500Z"},"content_sha256":"cc5483feb941e9052f110301446c47d23944635fdabbce2d279d32ee2fa48a59","schema_version":"1.0","event_id":"sha256:cc5483feb941e9052f110301446c47d23944635fdabbce2d279d32ee2fa48a59"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7PNPFEX54IN4LGCIOVL3RDSETO/bundle.json","state_url":"https://pith.science/pith/7PNPFEX54IN4LGCIOVL3RDSETO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7PNPFEX54IN4LGCIOVL3RDSETO/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":"2026-07-20T20:40:58Z","links":{"resolver":"https://pith.science/pith/7PNPFEX54IN4LGCIOVL3RDSETO","bundle":"https://pith.science/pith/7PNPFEX54IN4LGCIOVL3RDSETO/bundle.json","state":"https://pith.science/pith/7PNPFEX54IN4LGCIOVL3RDSETO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7PNPFEX54IN4LGCIOVL3RDSETO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:7PNPFEX54IN4LGCIOVL3RDSETO","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":"99dde107f43a4dcbe3adc89f162944bf2728941df14ff39788942f725edda636","cross_cats_sorted":["hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-09-04T00:36:20Z","title_canon_sha256":"204f62beff3918ce6afc9b3a12fecf2425466313676a1470620383c983e404dd"},"schema_version":"1.0","source":{"id":"0909.0751","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.0751","created_at":"2026-07-04T17:18:58Z"},{"alias_kind":"arxiv_version","alias_value":"0909.0751v3","created_at":"2026-07-04T17:18:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.0751","created_at":"2026-07-04T17:18:58Z"},{"alias_kind":"pith_short_12","alias_value":"7PNPFEX54IN4","created_at":"2026-07-04T17:18:58Z"},{"alias_kind":"pith_short_16","alias_value":"7PNPFEX54IN4LGCI","created_at":"2026-07-04T17:18:58Z"},{"alias_kind":"pith_short_8","alias_value":"7PNPFEX5","created_at":"2026-07-04T17:18:58Z"}],"graph_snapshots":[{"event_id":"sha256:cc5483feb941e9052f110301446c47d23944635fdabbce2d279d32ee2fa48a59","target":"graph","created_at":"2026-07-04T17:18:58Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/0909.0751/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In a variety of inflation models the motion of the inflaton may trigger the production of some non-inflaton particles during inflation, for example via parametric resonance or a phase transition. Particle production during inflation leads to observables in the cosmological fluctuations, such as features in the primordial power spectrum and also nongaussianities. Here we focus on a prototype scenario with inflaton, \\phi, and iso-inflaton, \\chi, fields interacting during inflation via the coupling g^2 (\\phi-\\phi_0)^2\\chi^2. Since several previous investigations have hinted at the presence of loc","authors_text":"Neil Barnaby, Zhiqi Huang","cross_cats":["hep-ph","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-09-04T00:36:20Z","title":"Particle Production During Inflation: Observational Constraints and Signatures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.0751","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:ba094d0608d3916b27092b38653f5d8554ccd979bb79df8767ff7ce8028f50d2","target":"record","created_at":"2026-07-04T17:18:58Z","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":"99dde107f43a4dcbe3adc89f162944bf2728941df14ff39788942f725edda636","cross_cats_sorted":["hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-09-04T00:36:20Z","title_canon_sha256":"204f62beff3918ce6afc9b3a12fecf2425466313676a1470620383c983e404dd"},"schema_version":"1.0","source":{"id":"0909.0751","kind":"arxiv","version":3}},"canonical_sha256":"fbdaf292fde21bc598487557b88e449b99c725c40545bd65242dc70c56e48dce","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fbdaf292fde21bc598487557b88e449b99c725c40545bd65242dc70c56e48dce","first_computed_at":"2026-07-04T17:18:58.207450Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:18:58.207450Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KbTdQJ0Rge55tFw0ArCbG36hkRqI0drY21YH3z78Og1EkqX+gXgWups3f14WyUkyDdKt0aEx2xqAbrEMiMAvDA==","signature_status":"signed_v1","signed_at":"2026-07-04T17:18:58.207968Z","signed_message":"canonical_sha256_bytes"},"source_id":"0909.0751","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ba094d0608d3916b27092b38653f5d8554ccd979bb79df8767ff7ce8028f50d2","sha256:cc5483feb941e9052f110301446c47d23944635fdabbce2d279d32ee2fa48a59"],"state_sha256":"dc2927da29a0e0156249595a249573b94ea172cb481b62bebb7d5969faf968af"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FiAJCCw2Y8dv8wcRy/kSUMX4WypDg8Bh/yy+WlS6NWrvrbVhNAI9QoQ704a/FT8Cb1SmkVx8cskx8XMFGL+3Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-20T20:40:58.178048Z","bundle_sha256":"560624217e2db900e2974f50e854c5707e7471182f64d1793ce099cb6b3ea780"}}