{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:LPAPYPAE2HS6REF5C3ZHXV2CE5","short_pith_number":"pith:LPAPYPAE","canonical_record":{"source":{"id":"2307.15670","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-07-28T17:02:50Z","cross_cats_sorted":[],"title_canon_sha256":"8808d8723c6f0c6cecf5ccc34eecedfb29fd4b4eec3852f06fc4785fbe6a1f59","abstract_canon_sha256":"623e66370f5ac47092b929c4e0cb5ed7f5aaceed6bf95dfbd81ee4317946e2a4"},"schema_version":"1.0"},"canonical_sha256":"5bc0fc3c04d1e5e890bd16f27bd742277be4697ea4cbbfc6b356b92a388f672e","source":{"kind":"arxiv","id":"2307.15670","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.15670","created_at":"2026-07-05T06:35:38Z"},{"alias_kind":"arxiv_version","alias_value":"2307.15670v1","created_at":"2026-07-05T06:35:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.15670","created_at":"2026-07-05T06:35:38Z"},{"alias_kind":"pith_short_12","alias_value":"LPAPYPAE2HS6","created_at":"2026-07-05T06:35:38Z"},{"alias_kind":"pith_short_16","alias_value":"LPAPYPAE2HS6REF5","created_at":"2026-07-05T06:35:38Z"},{"alias_kind":"pith_short_8","alias_value":"LPAPYPAE","created_at":"2026-07-05T06:35:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:LPAPYPAE2HS6REF5C3ZHXV2CE5","target":"record","payload":{"canonical_record":{"source":{"id":"2307.15670","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-07-28T17:02:50Z","cross_cats_sorted":[],"title_canon_sha256":"8808d8723c6f0c6cecf5ccc34eecedfb29fd4b4eec3852f06fc4785fbe6a1f59","abstract_canon_sha256":"623e66370f5ac47092b929c4e0cb5ed7f5aaceed6bf95dfbd81ee4317946e2a4"},"schema_version":"1.0"},"canonical_sha256":"5bc0fc3c04d1e5e890bd16f27bd742277be4697ea4cbbfc6b356b92a388f672e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:35:38.088191Z","signature_b64":"7riIUFrNG672bEZixJxgWlzCFU7zEyKAprqzfaSVexVrFHMazIGFDFeoBbHAPsi1CIAsarJYteilkcBKXw5sBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5bc0fc3c04d1e5e890bd16f27bd742277be4697ea4cbbfc6b356b92a388f672e","last_reissued_at":"2026-07-05T06:35:38.087644Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:35:38.087644Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2307.15670","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":"2026-07-05T06:35:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rdeFbcQ0L/JeqkymAUHAtaUDEpCMvnFewQ8po+BnMSJCTteZZgY9X3Sjy2BRpegAy65uJqwKXIrxYUFO+kq4BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T08:10:09.346383Z"},"content_sha256":"2aeee45cbfc81e309f3cfd7eb822234a675f5a48a9666227635fb3c872624d9b","schema_version":"1.0","event_id":"sha256:2aeee45cbfc81e309f3cfd7eb822234a675f5a48a9666227635fb3c872624d9b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:LPAPYPAE2HS6REF5C3ZHXV2CE5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Impact Rates in the Outer Solar System","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"David Nesvorny, Kevin J. Zahnle, Luke Dones, Maria Womack, Mario De Pra","submitted_at":"2023-07-28T17:02:50Z","abstract_excerpt":"Previous studies of cometary impacts in the outer Solar System used the spatial distribution of ecliptic comets (ECs) from dynamical models that assumed ECs began on low-inclination orbits (<5 deg) in the Kuiper belt. In reality, the source population of ECs - the trans-Neptunian scattered disk - has orbital inclinations reaching up to ~30 deg. In Nesvorny et al. (2017), we developed a new dynamical model of ECs by following comets as they evolved from the scattered disk to the inner Solar System. The model was absolutely calibrated from the population of Centaurs and active ECs. Here we use o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.15670","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/2307.15670/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":"2026-07-05T06:35:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nOe+g2RifQgSIhhy3NXNdMD0MSLMuqKrntRM/UlLTjMwUd54NaGZkV1pLBHtCgjo15v+BfpeAlXo9ponmcP0Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T08:10:09.346882Z"},"content_sha256":"37da433c909e56f5b8e1fb92119d76673e24867a0510d2ac61660eaada189826","schema_version":"1.0","event_id":"sha256:37da433c909e56f5b8e1fb92119d76673e24867a0510d2ac61660eaada189826"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LPAPYPAE2HS6REF5C3ZHXV2CE5/bundle.json","state_url":"https://pith.science/pith/LPAPYPAE2HS6REF5C3ZHXV2CE5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LPAPYPAE2HS6REF5C3ZHXV2CE5/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":"2026-07-06T08:10:09Z","links":{"resolver":"https://pith.science/pith/LPAPYPAE2HS6REF5C3ZHXV2CE5","bundle":"https://pith.science/pith/LPAPYPAE2HS6REF5C3ZHXV2CE5/bundle.json","state":"https://pith.science/pith/LPAPYPAE2HS6REF5C3ZHXV2CE5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LPAPYPAE2HS6REF5C3ZHXV2CE5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:LPAPYPAE2HS6REF5C3ZHXV2CE5","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":"623e66370f5ac47092b929c4e0cb5ed7f5aaceed6bf95dfbd81ee4317946e2a4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-07-28T17:02:50Z","title_canon_sha256":"8808d8723c6f0c6cecf5ccc34eecedfb29fd4b4eec3852f06fc4785fbe6a1f59"},"schema_version":"1.0","source":{"id":"2307.15670","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.15670","created_at":"2026-07-05T06:35:38Z"},{"alias_kind":"arxiv_version","alias_value":"2307.15670v1","created_at":"2026-07-05T06:35:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.15670","created_at":"2026-07-05T06:35:38Z"},{"alias_kind":"pith_short_12","alias_value":"LPAPYPAE2HS6","created_at":"2026-07-05T06:35:38Z"},{"alias_kind":"pith_short_16","alias_value":"LPAPYPAE2HS6REF5","created_at":"2026-07-05T06:35:38Z"},{"alias_kind":"pith_short_8","alias_value":"LPAPYPAE","created_at":"2026-07-05T06:35:38Z"}],"graph_snapshots":[{"event_id":"sha256:37da433c909e56f5b8e1fb92119d76673e24867a0510d2ac61660eaada189826","target":"graph","created_at":"2026-07-05T06:35:38Z","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/2307.15670/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Previous studies of cometary impacts in the outer Solar System used the spatial distribution of ecliptic comets (ECs) from dynamical models that assumed ECs began on low-inclination orbits (<5 deg) in the Kuiper belt. In reality, the source population of ECs - the trans-Neptunian scattered disk - has orbital inclinations reaching up to ~30 deg. In Nesvorny et al. (2017), we developed a new dynamical model of ECs by following comets as they evolved from the scattered disk to the inner Solar System. The model was absolutely calibrated from the population of Centaurs and active ECs. Here we use o","authors_text":"David Nesvorny, Kevin J. Zahnle, Luke Dones, Maria Womack, Mario De Pra","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-07-28T17:02:50Z","title":"Impact Rates in the Outer Solar System"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.15670","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":"sha256:2aeee45cbfc81e309f3cfd7eb822234a675f5a48a9666227635fb3c872624d9b","target":"record","created_at":"2026-07-05T06:35:38Z","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":"623e66370f5ac47092b929c4e0cb5ed7f5aaceed6bf95dfbd81ee4317946e2a4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-07-28T17:02:50Z","title_canon_sha256":"8808d8723c6f0c6cecf5ccc34eecedfb29fd4b4eec3852f06fc4785fbe6a1f59"},"schema_version":"1.0","source":{"id":"2307.15670","kind":"arxiv","version":1}},"canonical_sha256":"5bc0fc3c04d1e5e890bd16f27bd742277be4697ea4cbbfc6b356b92a388f672e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5bc0fc3c04d1e5e890bd16f27bd742277be4697ea4cbbfc6b356b92a388f672e","first_computed_at":"2026-07-05T06:35:38.087644Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:35:38.087644Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7riIUFrNG672bEZixJxgWlzCFU7zEyKAprqzfaSVexVrFHMazIGFDFeoBbHAPsi1CIAsarJYteilkcBKXw5sBg==","signature_status":"signed_v1","signed_at":"2026-07-05T06:35:38.088191Z","signed_message":"canonical_sha256_bytes"},"source_id":"2307.15670","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2aeee45cbfc81e309f3cfd7eb822234a675f5a48a9666227635fb3c872624d9b","sha256:37da433c909e56f5b8e1fb92119d76673e24867a0510d2ac61660eaada189826"],"state_sha256":"2b006e9c765371654691871c7c2751a4e14054cb4c8255bfa22de51203dc1d43"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZWvDjmLZYxQqMDtLCBOKCBz8HMRGXdF6ad/fRY/yGs2gebxKJEcS9EYSTs1CcUwDrGNFQ52hnR9bNScjqVGVCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T08:10:09.349193Z","bundle_sha256":"06ba7533c5cdd2617a146b973af3564fca093d0d21a3cc34c98c6fe4feacdbf4"}}