{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:R5DHCFS4IQ24JBLTY5QEKNRZZW","short_pith_number":"pith:R5DHCFS4","canonical_record":{"source":{"id":"2607.15251","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2026-07-16T17:47:42Z","cross_cats_sorted":[],"title_canon_sha256":"09f4bc96b43a995b97ee49236e9c86c6df9ee3a49bbecb9179fd6eb9ea4638e0","abstract_canon_sha256":"f8f4d1d792f8671f60e8713ce434c824d10cc4d21c533243a01ca1a8f931b909"},"schema_version":"1.0"},"canonical_sha256":"8f4671165c4435c48573c760453639cd8033653b00a6195b82ba6cde20bdd7d5","source":{"kind":"arxiv","id":"2607.15251","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.15251","created_at":"2026-07-17T01:22:16Z"},{"alias_kind":"arxiv_version","alias_value":"2607.15251v1","created_at":"2026-07-17T01:22:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.15251","created_at":"2026-07-17T01:22:16Z"},{"alias_kind":"pith_short_12","alias_value":"R5DHCFS4IQ24","created_at":"2026-07-17T01:22:16Z"},{"alias_kind":"pith_short_16","alias_value":"R5DHCFS4IQ24JBLT","created_at":"2026-07-17T01:22:16Z"},{"alias_kind":"pith_short_8","alias_value":"R5DHCFS4","created_at":"2026-07-17T01:22:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:R5DHCFS4IQ24JBLTY5QEKNRZZW","target":"record","payload":{"canonical_record":{"source":{"id":"2607.15251","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2026-07-16T17:47:42Z","cross_cats_sorted":[],"title_canon_sha256":"09f4bc96b43a995b97ee49236e9c86c6df9ee3a49bbecb9179fd6eb9ea4638e0","abstract_canon_sha256":"f8f4d1d792f8671f60e8713ce434c824d10cc4d21c533243a01ca1a8f931b909"},"schema_version":"1.0"},"canonical_sha256":"8f4671165c4435c48573c760453639cd8033653b00a6195b82ba6cde20bdd7d5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-17T01:22:16.708390Z","signature_b64":"v2l15OzJXkU+MUR5oLwRLJEKJ6O6AXBFpqqFQEz1Ggr+lTi+g9lfaDK67deNbykkf1OpzkN2ob0LusmANddqAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8f4671165c4435c48573c760453639cd8033653b00a6195b82ba6cde20bdd7d5","last_reissued_at":"2026-07-17T01:22:16.707584Z","signature_status":"signed_v1","first_computed_at":"2026-07-17T01:22:16.707584Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.15251","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":"2026-07-17T01:22:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xeIU7QytpcJ8lxtFEmXVq7md5Se2I+IHkwZfwdzmV8HCPmMYExs16adQieyxbWg9kY80Jge5aDCrO2nMfRjbDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-02T00:00:46.108899Z"},"content_sha256":"84e1a13b209d4d8943f998655fca670b368801322583c8bffde13f24a28a0508","schema_version":"1.0","event_id":"sha256:84e1a13b209d4d8943f998655fca670b368801322583c8bffde13f24a28a0508"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:R5DHCFS4IQ24JBLTY5QEKNRZZW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"New exact bispectrum shapes in multifield inflation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Lucas Pinol","submitted_at":"2026-07-16T17:47:42Z","abstract_excerpt":"Using the effective field theory of multiple inflationary fluctuations, we present the first analytical calculation of the primordial bispectrum in which the quadratic mixing between curvature and isocurvature fluctuations is treated non-perturbatively. Building upon the operator representation of the exact linear solutions proposed in Ref.~\\cite{Huenupi:2026abj}, we derive a simpler integral representation for these mixed mode functions. We prove that all scale-invariant tree-level bispectra reduce to a single vertex diagram, which can be evaluated with a Schwinger-parameter integral over ind"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.15251","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2607.15251/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":"2026-07-17T01:22:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Vj08EoOqJZAWLgBZa3sY1re5PpNc28ey18gKSgOlcJ55BCQ4r6OAYhLqqnbcNUxBv0BAAEf3NIblGv9CKFWcDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-02T00:00:46.109197Z"},"content_sha256":"64863f4450ca9c341d71579759e803cb09c9ef2cc7212152fb4ad1cd2701e1d1","schema_version":"1.0","event_id":"sha256:64863f4450ca9c341d71579759e803cb09c9ef2cc7212152fb4ad1cd2701e1d1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/R5DHCFS4IQ24JBLTY5QEKNRZZW/bundle.json","state_url":"https://pith.science/pith/R5DHCFS4IQ24JBLTY5QEKNRZZW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/R5DHCFS4IQ24JBLTY5QEKNRZZW/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":"2026-08-02T00:00:46Z","links":{"resolver":"https://pith.science/pith/R5DHCFS4IQ24JBLTY5QEKNRZZW","bundle":"https://pith.science/pith/R5DHCFS4IQ24JBLTY5QEKNRZZW/bundle.json","state":"https://pith.science/pith/R5DHCFS4IQ24JBLTY5QEKNRZZW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/R5DHCFS4IQ24JBLTY5QEKNRZZW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:R5DHCFS4IQ24JBLTY5QEKNRZZW","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":"f8f4d1d792f8671f60e8713ce434c824d10cc4d21c533243a01ca1a8f931b909","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2026-07-16T17:47:42Z","title_canon_sha256":"09f4bc96b43a995b97ee49236e9c86c6df9ee3a49bbecb9179fd6eb9ea4638e0"},"schema_version":"1.0","source":{"id":"2607.15251","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.15251","created_at":"2026-07-17T01:22:16Z"},{"alias_kind":"arxiv_version","alias_value":"2607.15251v1","created_at":"2026-07-17T01:22:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.15251","created_at":"2026-07-17T01:22:16Z"},{"alias_kind":"pith_short_12","alias_value":"R5DHCFS4IQ24","created_at":"2026-07-17T01:22:16Z"},{"alias_kind":"pith_short_16","alias_value":"R5DHCFS4IQ24JBLT","created_at":"2026-07-17T01:22:16Z"},{"alias_kind":"pith_short_8","alias_value":"R5DHCFS4","created_at":"2026-07-17T01:22:16Z"}],"graph_snapshots":[{"event_id":"sha256:64863f4450ca9c341d71579759e803cb09c9ef2cc7212152fb4ad1cd2701e1d1","target":"graph","created_at":"2026-07-17T01:22:16Z","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/2607.15251/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Using the effective field theory of multiple inflationary fluctuations, we present the first analytical calculation of the primordial bispectrum in which the quadratic mixing between curvature and isocurvature fluctuations is treated non-perturbatively. Building upon the operator representation of the exact linear solutions proposed in Ref.~\\cite{Huenupi:2026abj}, we derive a simpler integral representation for these mixed mode functions. We prove that all scale-invariant tree-level bispectra reduce to a single vertex diagram, which can be evaluated with a Schwinger-parameter integral over ind","authors_text":"Lucas Pinol","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2026-07-16T17:47:42Z","title":"New exact bispectrum shapes in multifield inflation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.15251","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":"sha256:84e1a13b209d4d8943f998655fca670b368801322583c8bffde13f24a28a0508","target":"record","created_at":"2026-07-17T01:22:16Z","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":"f8f4d1d792f8671f60e8713ce434c824d10cc4d21c533243a01ca1a8f931b909","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2026-07-16T17:47:42Z","title_canon_sha256":"09f4bc96b43a995b97ee49236e9c86c6df9ee3a49bbecb9179fd6eb9ea4638e0"},"schema_version":"1.0","source":{"id":"2607.15251","kind":"arxiv","version":1}},"canonical_sha256":"8f4671165c4435c48573c760453639cd8033653b00a6195b82ba6cde20bdd7d5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8f4671165c4435c48573c760453639cd8033653b00a6195b82ba6cde20bdd7d5","first_computed_at":"2026-07-17T01:22:16.707584Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-17T01:22:16.707584Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"v2l15OzJXkU+MUR5oLwRLJEKJ6O6AXBFpqqFQEz1Ggr+lTi+g9lfaDK67deNbykkf1OpzkN2ob0LusmANddqAQ==","signature_status":"signed_v1","signed_at":"2026-07-17T01:22:16.708390Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.15251","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:84e1a13b209d4d8943f998655fca670b368801322583c8bffde13f24a28a0508","sha256:64863f4450ca9c341d71579759e803cb09c9ef2cc7212152fb4ad1cd2701e1d1"],"state_sha256":"9d851cde1da5089ad3ed95411548f674c0c087da9c8fb2b8b965cd84b0331fd1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AzU+z7XFZO+3JqtX9e76kPe6YaGaThosVs1Sb0o6cTuysql5/C98mTake9GUNw7HYX6zbHe7oNqNEnfQzkKcCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-02T00:00:46.111537Z","bundle_sha256":"e3e3a9aca7b79ae7d5beffd3a136f0433bfe3db3dbc76654b218ecbd6da6043b"}}