{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1999:WORTRZUIWFW6OD3T2MLAFFKEDL","short_pith_number":"pith:WORTRZUI","canonical_record":{"source":{"id":"astro-ph/9907431","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1999-07-29T23:01:11Z","cross_cats_sorted":[],"title_canon_sha256":"3365923da3b2c88c1efd38d2a3d01ace6f79b5764fe62491ffa1d5747a79d71c","abstract_canon_sha256":"0227686ec2081afe4c5a73da08d84a1d074ae58cec2135ef5815aecf4badf139"},"schema_version":"1.0"},"canonical_sha256":"b3a338e688b16de70f73d3160295441ac14a4dfa1297ceeeb850c19dcd67e490","source":{"kind":"arxiv","id":"astro-ph/9907431","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9907431","created_at":"2026-05-18T04:30:12Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9907431v1","created_at":"2026-05-18T04:30:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9907431","created_at":"2026-05-18T04:30:12Z"},{"alias_kind":"pith_short_12","alias_value":"WORTRZUIWFW6","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"WORTRZUIWFW6OD3T","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"WORTRZUI","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1999:WORTRZUIWFW6OD3T2MLAFFKEDL","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/9907431","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1999-07-29T23:01:11Z","cross_cats_sorted":[],"title_canon_sha256":"3365923da3b2c88c1efd38d2a3d01ace6f79b5764fe62491ffa1d5747a79d71c","abstract_canon_sha256":"0227686ec2081afe4c5a73da08d84a1d074ae58cec2135ef5815aecf4badf139"},"schema_version":"1.0"},"canonical_sha256":"b3a338e688b16de70f73d3160295441ac14a4dfa1297ceeeb850c19dcd67e490","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:30:12.859278Z","signature_b64":"5xSVfBnALlMtIY9hXoSs9zGcMRqVr3DuC0RuN+iZcb6MxcHnbAoUFpC0Fg9JiSnixkXQJSk4zWNSLK1BmWLZAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b3a338e688b16de70f73d3160295441ac14a4dfa1297ceeeb850c19dcd67e490","last_reissued_at":"2026-05-18T04:30:12.858748Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:30:12.858748Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/9907431","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":"2026-05-18T04:30:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4uywR5eATU9JIji7Wz0eK7oq9tnFA3EEHeJXSoqpnO/mNoB2BIstkJj6eK6kkoLDjQZlSKyWSywPfKhMiIg2Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T12:20:11.051434Z"},"content_sha256":"dee8c476115da9b39dc6173eee93ba99126197ebe378090f1e54d52c7735137c","schema_version":"1.0","event_id":"sha256:dee8c476115da9b39dc6173eee93ba99126197ebe378090f1e54d52c7735137c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1999:WORTRZUIWFW6OD3T2MLAFFKEDL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Cosmic Microwave Background Bispectrum and Inflation","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Limin Wang, Marc Kamionkowski","submitted_at":"1999-07-29T23:01:11Z","abstract_excerpt":"We derive an expression for the non-Gaussian cosmic-microwave-background (CMB) statistic $I_l^3$ defined recently by Ferreira, Magueijo, and G\\'orski in terms of the slow-roll-inflation parameters $\\epsilon$ and $\\eta$. This result shows that a nonzero value of $I_l^3$ in COBE would rule out single-field slow-roll inflation. A sharp change in the slope of the inflaton potential could increase the predicted value of $I_l^3$, but not significantly. This further suggests that it will be difficult to account for such a detection in multiple-field models in which density perturbations are produced "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9907431","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":"2026-05-18T04:30:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qxb/e6W6dU6oUY5ZIbeQ/bIsS0phTqLHqZNZZiPfJOWgsLM2Jk8pLTh/yAceZzYZqOvVLIn5H1fzfFE8yJT3CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T12:20:11.052160Z"},"content_sha256":"ff21f4b70145fd3e23ed5ff73ae6d0172b4df5ccfd47a5a9d89951f719f3b99d","schema_version":"1.0","event_id":"sha256:ff21f4b70145fd3e23ed5ff73ae6d0172b4df5ccfd47a5a9d89951f719f3b99d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WORTRZUIWFW6OD3T2MLAFFKEDL/bundle.json","state_url":"https://pith.science/pith/WORTRZUIWFW6OD3T2MLAFFKEDL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WORTRZUIWFW6OD3T2MLAFFKEDL/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":"2026-05-26T12:20:11Z","links":{"resolver":"https://pith.science/pith/WORTRZUIWFW6OD3T2MLAFFKEDL","bundle":"https://pith.science/pith/WORTRZUIWFW6OD3T2MLAFFKEDL/bundle.json","state":"https://pith.science/pith/WORTRZUIWFW6OD3T2MLAFFKEDL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WORTRZUIWFW6OD3T2MLAFFKEDL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:WORTRZUIWFW6OD3T2MLAFFKEDL","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":"0227686ec2081afe4c5a73da08d84a1d074ae58cec2135ef5815aecf4badf139","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1999-07-29T23:01:11Z","title_canon_sha256":"3365923da3b2c88c1efd38d2a3d01ace6f79b5764fe62491ffa1d5747a79d71c"},"schema_version":"1.0","source":{"id":"astro-ph/9907431","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9907431","created_at":"2026-05-18T04:30:12Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9907431v1","created_at":"2026-05-18T04:30:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9907431","created_at":"2026-05-18T04:30:12Z"},{"alias_kind":"pith_short_12","alias_value":"WORTRZUIWFW6","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"WORTRZUIWFW6OD3T","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"WORTRZUI","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:ff21f4b70145fd3e23ed5ff73ae6d0172b4df5ccfd47a5a9d89951f719f3b99d","target":"graph","created_at":"2026-05-18T04:30:12Z","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":"We derive an expression for the non-Gaussian cosmic-microwave-background (CMB) statistic $I_l^3$ defined recently by Ferreira, Magueijo, and G\\'orski in terms of the slow-roll-inflation parameters $\\epsilon$ and $\\eta$. This result shows that a nonzero value of $I_l^3$ in COBE would rule out single-field slow-roll inflation. A sharp change in the slope of the inflaton potential could increase the predicted value of $I_l^3$, but not significantly. This further suggests that it will be difficult to account for such a detection in multiple-field models in which density perturbations are produced ","authors_text":"Limin Wang, Marc Kamionkowski","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1999-07-29T23:01:11Z","title":"The Cosmic Microwave Background Bispectrum and Inflation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9907431","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:dee8c476115da9b39dc6173eee93ba99126197ebe378090f1e54d52c7735137c","target":"record","created_at":"2026-05-18T04:30:12Z","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":"0227686ec2081afe4c5a73da08d84a1d074ae58cec2135ef5815aecf4badf139","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1999-07-29T23:01:11Z","title_canon_sha256":"3365923da3b2c88c1efd38d2a3d01ace6f79b5764fe62491ffa1d5747a79d71c"},"schema_version":"1.0","source":{"id":"astro-ph/9907431","kind":"arxiv","version":1}},"canonical_sha256":"b3a338e688b16de70f73d3160295441ac14a4dfa1297ceeeb850c19dcd67e490","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b3a338e688b16de70f73d3160295441ac14a4dfa1297ceeeb850c19dcd67e490","first_computed_at":"2026-05-18T04:30:12.858748Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:30:12.858748Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5xSVfBnALlMtIY9hXoSs9zGcMRqVr3DuC0RuN+iZcb6MxcHnbAoUFpC0Fg9JiSnixkXQJSk4zWNSLK1BmWLZAw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:30:12.859278Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9907431","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dee8c476115da9b39dc6173eee93ba99126197ebe378090f1e54d52c7735137c","sha256:ff21f4b70145fd3e23ed5ff73ae6d0172b4df5ccfd47a5a9d89951f719f3b99d"],"state_sha256":"68a15c8bd2c2262d8df0938a1f025d90af79569683f50aaa15c77e3753b83570"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5T19W3+LW8IugZMA3598pbLNvYOo9ZCXUxwrS/xV+QDLzk4CbBVvqKiof50HrViApgdTPMUbYAo7ZBLnppPVDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T12:20:11.056151Z","bundle_sha256":"b744f8d4d6d3590df54c4542c3bc5fd50710ce1716b1704dcfe6de6d5b99577d"}}