{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:XLBK6ZRGCUHJLVP6CZWK42E25R","short_pith_number":"pith:XLBK6ZRG","canonical_record":{"source":{"id":"1711.03964","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-11-07T19:00:02Z","cross_cats_sorted":["hep-th","math-ph","math.MP"],"title_canon_sha256":"c0a91eb8a744d8acde4aa550347c42f411a5436f1e3adbe1f0600b10086e1a76","abstract_canon_sha256":"02f24c9b83d72b6c58d2036230de278d6e0940b2b144ef2e74106475578d125c"},"schema_version":"1.0"},"canonical_sha256":"bac2af6626150e95d5fe166cae689aec4391c712239e90b1c837339971069405","source":{"kind":"arxiv","id":"1711.03964","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.03964","created_at":"2026-05-18T00:16:56Z"},{"alias_kind":"arxiv_version","alias_value":"1711.03964v2","created_at":"2026-05-18T00:16:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.03964","created_at":"2026-05-18T00:16:56Z"},{"alias_kind":"pith_short_12","alias_value":"XLBK6ZRGCUHJ","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_16","alias_value":"XLBK6ZRGCUHJLVP6","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_8","alias_value":"XLBK6ZRG","created_at":"2026-05-18T12:31:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:XLBK6ZRGCUHJLVP6CZWK42E25R","target":"record","payload":{"canonical_record":{"source":{"id":"1711.03964","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-11-07T19:00:02Z","cross_cats_sorted":["hep-th","math-ph","math.MP"],"title_canon_sha256":"c0a91eb8a744d8acde4aa550347c42f411a5436f1e3adbe1f0600b10086e1a76","abstract_canon_sha256":"02f24c9b83d72b6c58d2036230de278d6e0940b2b144ef2e74106475578d125c"},"schema_version":"1.0"},"canonical_sha256":"bac2af6626150e95d5fe166cae689aec4391c712239e90b1c837339971069405","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:16:56.057823Z","signature_b64":"StABNufGWvIFy0Cyfd8qDDdWDmg6ynVshu8PrMwuWFE2pQ2qGZXNTfLfypylojACQ7NSVqfMDv8pXyUIg7byAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bac2af6626150e95d5fe166cae689aec4391c712239e90b1c837339971069405","last_reissued_at":"2026-05-18T00:16:56.057136Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:16:56.057136Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1711.03964","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":"2026-05-18T00:16:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"miYDL7Cj0hG+sHb8zIsnk0x9orZtRJ6DRQt+PKrNuwQuJL56Ggq6RAC+Bfi2a/+QYi4eOqXS0HDPwdIv052dCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T23:27:34.999805Z"},"content_sha256":"66dcc29be34fc6e2e8e7021cd098c3191220b7c3ae08572315b72653cad84119","schema_version":"1.0","event_id":"sha256:66dcc29be34fc6e2e8e7021cd098c3191220b7c3ae08572315b72653cad84119"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:XLBK6ZRGCUHJLVP6CZWK42E25R","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Infrared divergences for free quantum fields in cosmological spacetimes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th","math-ph","math.MP"],"primary_cat":"gr-qc","authors_text":"Atsushi Higuchi, Nicola Rendell","submitted_at":"2017-11-07T19:00:02Z","abstract_excerpt":"We investigate the nature of infrared divergences for the free graviton and inflaton two-point functions in flat Friedman-Lema\\^{\\i}tre-Robertson-Walker spacetime. These divergences arise because the momentum integral for these two-point functions diverges in the infrared. It is straightforward to see that the power of the momentum in the integrand can be increased by $2$ in the infrared using large gauge transformations, which are sufficient for rendering these two-point functions infrared finite for slow-roll inflation. In other words, if the integrand of the momentum integral for these two-"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.03964","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":""},"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":"2026-05-18T00:16:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wqAsFW7as0X3lz/6K4Rb9nnOhZnZLbjO7d6ATPJcHVQSMcc6VEWpkh/t93u3V1WEPpvBs8rV0G1CQZn7FUsaAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T23:27:35.000163Z"},"content_sha256":"e1a9a8ad020b2f2188bf2f69261eef87e736d077bec5dea13e89e2bf103f7c03","schema_version":"1.0","event_id":"sha256:e1a9a8ad020b2f2188bf2f69261eef87e736d077bec5dea13e89e2bf103f7c03"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XLBK6ZRGCUHJLVP6CZWK42E25R/bundle.json","state_url":"https://pith.science/pith/XLBK6ZRGCUHJLVP6CZWK42E25R/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XLBK6ZRGCUHJLVP6CZWK42E25R/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":"2026-05-26T23:27:35Z","links":{"resolver":"https://pith.science/pith/XLBK6ZRGCUHJLVP6CZWK42E25R","bundle":"https://pith.science/pith/XLBK6ZRGCUHJLVP6CZWK42E25R/bundle.json","state":"https://pith.science/pith/XLBK6ZRGCUHJLVP6CZWK42E25R/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XLBK6ZRGCUHJLVP6CZWK42E25R/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:XLBK6ZRGCUHJLVP6CZWK42E25R","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":"02f24c9b83d72b6c58d2036230de278d6e0940b2b144ef2e74106475578d125c","cross_cats_sorted":["hep-th","math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-11-07T19:00:02Z","title_canon_sha256":"c0a91eb8a744d8acde4aa550347c42f411a5436f1e3adbe1f0600b10086e1a76"},"schema_version":"1.0","source":{"id":"1711.03964","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.03964","created_at":"2026-05-18T00:16:56Z"},{"alias_kind":"arxiv_version","alias_value":"1711.03964v2","created_at":"2026-05-18T00:16:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.03964","created_at":"2026-05-18T00:16:56Z"},{"alias_kind":"pith_short_12","alias_value":"XLBK6ZRGCUHJ","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_16","alias_value":"XLBK6ZRGCUHJLVP6","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_8","alias_value":"XLBK6ZRG","created_at":"2026-05-18T12:31:56Z"}],"graph_snapshots":[{"event_id":"sha256:e1a9a8ad020b2f2188bf2f69261eef87e736d077bec5dea13e89e2bf103f7c03","target":"graph","created_at":"2026-05-18T00:16:56Z","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 investigate the nature of infrared divergences for the free graviton and inflaton two-point functions in flat Friedman-Lema\\^{\\i}tre-Robertson-Walker spacetime. These divergences arise because the momentum integral for these two-point functions diverges in the infrared. It is straightforward to see that the power of the momentum in the integrand can be increased by $2$ in the infrared using large gauge transformations, which are sufficient for rendering these two-point functions infrared finite for slow-roll inflation. In other words, if the integrand of the momentum integral for these two-","authors_text":"Atsushi Higuchi, Nicola Rendell","cross_cats":["hep-th","math-ph","math.MP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-11-07T19:00:02Z","title":"Infrared divergences for free quantum fields in cosmological spacetimes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.03964","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":"sha256:66dcc29be34fc6e2e8e7021cd098c3191220b7c3ae08572315b72653cad84119","target":"record","created_at":"2026-05-18T00:16:56Z","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":"02f24c9b83d72b6c58d2036230de278d6e0940b2b144ef2e74106475578d125c","cross_cats_sorted":["hep-th","math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-11-07T19:00:02Z","title_canon_sha256":"c0a91eb8a744d8acde4aa550347c42f411a5436f1e3adbe1f0600b10086e1a76"},"schema_version":"1.0","source":{"id":"1711.03964","kind":"arxiv","version":2}},"canonical_sha256":"bac2af6626150e95d5fe166cae689aec4391c712239e90b1c837339971069405","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bac2af6626150e95d5fe166cae689aec4391c712239e90b1c837339971069405","first_computed_at":"2026-05-18T00:16:56.057136Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:16:56.057136Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"StABNufGWvIFy0Cyfd8qDDdWDmg6ynVshu8PrMwuWFE2pQ2qGZXNTfLfypylojACQ7NSVqfMDv8pXyUIg7byAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:16:56.057823Z","signed_message":"canonical_sha256_bytes"},"source_id":"1711.03964","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:66dcc29be34fc6e2e8e7021cd098c3191220b7c3ae08572315b72653cad84119","sha256:e1a9a8ad020b2f2188bf2f69261eef87e736d077bec5dea13e89e2bf103f7c03"],"state_sha256":"92a10df33f20c03620dbf51001bff4c28c413de22b9d4b1672caca0f943ae691"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2/GhcGTf3DzZw0XF20SVY8dKu1KXDADeOQR+b6Ws3lO3y5GMixS916e6/u6zG9poYGTPHvBNw6uB7wzHWgVFAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T23:27:35.002798Z","bundle_sha256":"0f737c0ea5e346218745058e9c248350b82cf27c762ea8d2cdff52cccae22db1"}}