{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:H7CTO3TRKXU3AB532NTO2VTNE4","short_pith_number":"pith:H7CTO3TR","canonical_record":{"source":{"id":"2112.15387","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-12-31T11:05:22Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"95fb59d6176ac379fcd54d6b2ab038ec7c293901653b7bf7bc8725ff3ecc55ab","abstract_canon_sha256":"198f3b8da60b6953d023512edca3c22206462074b632a094e111b9eebefc366d"},"schema_version":"1.0"},"canonical_sha256":"3fc5376e7155e9b007bbd366ed566d270ab639de0f5c980218ee2d5325c12c5c","source":{"kind":"arxiv","id":"2112.15387","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.15387","created_at":"2026-07-05T04:01:33Z"},{"alias_kind":"arxiv_version","alias_value":"2112.15387v3","created_at":"2026-07-05T04:01:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.15387","created_at":"2026-07-05T04:01:33Z"},{"alias_kind":"pith_short_12","alias_value":"H7CTO3TRKXU3","created_at":"2026-07-05T04:01:33Z"},{"alias_kind":"pith_short_16","alias_value":"H7CTO3TRKXU3AB53","created_at":"2026-07-05T04:01:33Z"},{"alias_kind":"pith_short_8","alias_value":"H7CTO3TR","created_at":"2026-07-05T04:01:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:H7CTO3TRKXU3AB532NTO2VTNE4","target":"record","payload":{"canonical_record":{"source":{"id":"2112.15387","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-12-31T11:05:22Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"95fb59d6176ac379fcd54d6b2ab038ec7c293901653b7bf7bc8725ff3ecc55ab","abstract_canon_sha256":"198f3b8da60b6953d023512edca3c22206462074b632a094e111b9eebefc366d"},"schema_version":"1.0"},"canonical_sha256":"3fc5376e7155e9b007bbd366ed566d270ab639de0f5c980218ee2d5325c12c5c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:01:33.615825Z","signature_b64":"ujZ6I2QgJzwD+hGaNa+YVnE4SOxlXvhdaf+Fsp774/Y4TAF13mn05pMQiVRbPxG2eNxhGlrmEj/XP0mCzta1BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3fc5376e7155e9b007bbd366ed566d270ab639de0f5c980218ee2d5325c12c5c","last_reissued_at":"2026-07-05T04:01:33.615353Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:01:33.615353Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2112.15387","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":"2026-07-05T04:01:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WEF22rGO3ozwWB3zelw7aWFFZFwwenAV0382ytEcA8dvSv8vyL9eQ3kjI4NwuK92/pqmtlzPe16Xc9331S0iCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T08:26:03.258986Z"},"content_sha256":"13c923ddf28b2d4c30963125b06f51943515d7035f5eb853eba2ef073c76c3ad","schema_version":"1.0","event_id":"sha256:13c923ddf28b2d4c30963125b06f51943515d7035f5eb853eba2ef073c76c3ad"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:H7CTO3TRKXU3AB532NTO2VTNE4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Complex actions and causality violations: Applications to Lorentzian quantum cosmology","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Bianca Dittrich, Jos\\'e Padua-Arg\\\"uelles, Seth K. Asante","submitted_at":"2021-12-31T11:05:22Z","abstract_excerpt":"For the construction of the Lorentzian path integral for gravity one faces two main questions: Firstly, what configurations to include, in particular whether to allow Lorentzian metrics that violate causality conditions. And secondly, how to evaluate a highly oscillatory path integral over unbounded domains. Relying on Picard-Lefschetz theory to address the second question for discrete Regge gravity, we will illustrate that it can also answer the first question. To this end we will define the Regge action for complexified variables and study its analytical continuation. Although there have bee"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.15387","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/2112.15387/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":"2026-07-05T04:01:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"br/+VCCmXTiLOjJnxL1wyUGbXfXXi3hxTpc4cwg4wADZahXLF7Lvg9AsfqHe+iW+7WT9yM0FFJwwNo8MA/t1Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T08:26:03.259394Z"},"content_sha256":"a51dafc9fbd1b0aaff443bd0c2eac7de3d93af9882143c18cce0e5d0f4ba2d3d","schema_version":"1.0","event_id":"sha256:a51dafc9fbd1b0aaff443bd0c2eac7de3d93af9882143c18cce0e5d0f4ba2d3d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/H7CTO3TRKXU3AB532NTO2VTNE4/bundle.json","state_url":"https://pith.science/pith/H7CTO3TRKXU3AB532NTO2VTNE4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/H7CTO3TRKXU3AB532NTO2VTNE4/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":"2026-07-06T08:26:03Z","links":{"resolver":"https://pith.science/pith/H7CTO3TRKXU3AB532NTO2VTNE4","bundle":"https://pith.science/pith/H7CTO3TRKXU3AB532NTO2VTNE4/bundle.json","state":"https://pith.science/pith/H7CTO3TRKXU3AB532NTO2VTNE4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/H7CTO3TRKXU3AB532NTO2VTNE4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:H7CTO3TRKXU3AB532NTO2VTNE4","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":"198f3b8da60b6953d023512edca3c22206462074b632a094e111b9eebefc366d","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-12-31T11:05:22Z","title_canon_sha256":"95fb59d6176ac379fcd54d6b2ab038ec7c293901653b7bf7bc8725ff3ecc55ab"},"schema_version":"1.0","source":{"id":"2112.15387","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.15387","created_at":"2026-07-05T04:01:33Z"},{"alias_kind":"arxiv_version","alias_value":"2112.15387v3","created_at":"2026-07-05T04:01:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.15387","created_at":"2026-07-05T04:01:33Z"},{"alias_kind":"pith_short_12","alias_value":"H7CTO3TRKXU3","created_at":"2026-07-05T04:01:33Z"},{"alias_kind":"pith_short_16","alias_value":"H7CTO3TRKXU3AB53","created_at":"2026-07-05T04:01:33Z"},{"alias_kind":"pith_short_8","alias_value":"H7CTO3TR","created_at":"2026-07-05T04:01:33Z"}],"graph_snapshots":[{"event_id":"sha256:a51dafc9fbd1b0aaff443bd0c2eac7de3d93af9882143c18cce0e5d0f4ba2d3d","target":"graph","created_at":"2026-07-05T04:01:33Z","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/2112.15387/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"For the construction of the Lorentzian path integral for gravity one faces two main questions: Firstly, what configurations to include, in particular whether to allow Lorentzian metrics that violate causality conditions. And secondly, how to evaluate a highly oscillatory path integral over unbounded domains. Relying on Picard-Lefschetz theory to address the second question for discrete Regge gravity, we will illustrate that it can also answer the first question. To this end we will define the Regge action for complexified variables and study its analytical continuation. Although there have bee","authors_text":"Bianca Dittrich, Jos\\'e Padua-Arg\\\"uelles, Seth K. Asante","cross_cats":["hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-12-31T11:05:22Z","title":"Complex actions and causality violations: Applications to Lorentzian quantum cosmology"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.15387","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":"sha256:13c923ddf28b2d4c30963125b06f51943515d7035f5eb853eba2ef073c76c3ad","target":"record","created_at":"2026-07-05T04:01:33Z","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":"198f3b8da60b6953d023512edca3c22206462074b632a094e111b9eebefc366d","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-12-31T11:05:22Z","title_canon_sha256":"95fb59d6176ac379fcd54d6b2ab038ec7c293901653b7bf7bc8725ff3ecc55ab"},"schema_version":"1.0","source":{"id":"2112.15387","kind":"arxiv","version":3}},"canonical_sha256":"3fc5376e7155e9b007bbd366ed566d270ab639de0f5c980218ee2d5325c12c5c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3fc5376e7155e9b007bbd366ed566d270ab639de0f5c980218ee2d5325c12c5c","first_computed_at":"2026-07-05T04:01:33.615353Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:01:33.615353Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ujZ6I2QgJzwD+hGaNa+YVnE4SOxlXvhdaf+Fsp774/Y4TAF13mn05pMQiVRbPxG2eNxhGlrmEj/XP0mCzta1BQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:01:33.615825Z","signed_message":"canonical_sha256_bytes"},"source_id":"2112.15387","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:13c923ddf28b2d4c30963125b06f51943515d7035f5eb853eba2ef073c76c3ad","sha256:a51dafc9fbd1b0aaff443bd0c2eac7de3d93af9882143c18cce0e5d0f4ba2d3d"],"state_sha256":"cba4d8e1dfc19b5bb23c9046c41906220d2732df481f5d491f6de873f0468906"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AY+9vFLVlPrnvVocV8Zo9wXAOsB3NjhLCWW4n3eOXNmn8oI+/taBVpc9V2XaObrmo3Cnyfhd/JRTTbD/BjJhDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T08:26:03.261371Z","bundle_sha256":"ffc628749b728552f4b48b4aad902ab015e038a62ff59f1bd10d553f8c154360"}}