{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:PDUAJ22FN6DYIDMWIV4AOE353H","short_pith_number":"pith:PDUAJ22F","canonical_record":{"source":{"id":"2108.12908","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-08-29T20:25:54Z","cross_cats_sorted":["physics.space-ph"],"title_canon_sha256":"367ddc415df5d67943e49da664ae782e05c16a89f62202317fc66465ba4907ee","abstract_canon_sha256":"1972528d2e5c041920eb4ba99de5802ebc751174a47687f95bb94337f5d331d7"},"schema_version":"1.0"},"canonical_sha256":"78e804eb456f87840d96457807137dd9f9baf6184f3df064d4f369a5d2032879","source":{"kind":"arxiv","id":"2108.12908","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.12908","created_at":"2026-07-05T03:57:28Z"},{"alias_kind":"arxiv_version","alias_value":"2108.12908v2","created_at":"2026-07-05T03:57:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.12908","created_at":"2026-07-05T03:57:28Z"},{"alias_kind":"pith_short_12","alias_value":"PDUAJ22FN6DY","created_at":"2026-07-05T03:57:28Z"},{"alias_kind":"pith_short_16","alias_value":"PDUAJ22FN6DYIDMW","created_at":"2026-07-05T03:57:28Z"},{"alias_kind":"pith_short_8","alias_value":"PDUAJ22F","created_at":"2026-07-05T03:57:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:PDUAJ22FN6DYIDMWIV4AOE353H","target":"record","payload":{"canonical_record":{"source":{"id":"2108.12908","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-08-29T20:25:54Z","cross_cats_sorted":["physics.space-ph"],"title_canon_sha256":"367ddc415df5d67943e49da664ae782e05c16a89f62202317fc66465ba4907ee","abstract_canon_sha256":"1972528d2e5c041920eb4ba99de5802ebc751174a47687f95bb94337f5d331d7"},"schema_version":"1.0"},"canonical_sha256":"78e804eb456f87840d96457807137dd9f9baf6184f3df064d4f369a5d2032879","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:57:28.086008Z","signature_b64":"Kif0aD9xH9EPACOwMZhMv5WrRFOiOI+6kWD2HXnZlwtBJl5LTtLbsp6/p8XqAQVfODumRYOlGDhUqpCUgJZ2CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"78e804eb456f87840d96457807137dd9f9baf6184f3df064d4f369a5d2032879","last_reissued_at":"2026-07-05T03:57:28.085448Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:57:28.085448Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2108.12908","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":"2026-07-05T03:57:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eMIXHf00SmrN1y88J7RNeSlDmoWQs61z4p0mgyMBBmKhS1w3xI7SkMEekGd/qU7ndZmCZRxN3hPbMhG5sX3eCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T01:59:46.457935Z"},"content_sha256":"9e4138f29d3af62b1728eb0d5433c77c9ac2500877b32b3d89d12c0d9a4ebf8a","schema_version":"1.0","event_id":"sha256:9e4138f29d3af62b1728eb0d5433c77c9ac2500877b32b3d89d12c0d9a4ebf8a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:PDUAJ22FN6DYIDMWIV4AOE353H","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Re-Analysis of the Cassini RPWS/LP Data in Titan's Ionosphere: 2. Statistics on 57 Flybys","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["physics.space-ph"],"primary_cat":"astro-ph.EP","authors_text":"A. Chatain, J.-E. Wahlund, L.Z. Hadid, M. Morooka, N. Carrasco, N.J.T. Edberg, O. Guaitella, O. Shebanits","submitted_at":"2021-08-29T20:25:54Z","abstract_excerpt":"The ionosphere of Titan hosts a complex ion chemistry leading to the formation of organic dust below 1200 km. Current models cannot fully explain the observed electron temperature in this dusty environment. To achieve new insight, we have re-analyzed the data taken in the ionosphere of Titan by the Cassini Langmuir probe (LP), part of the Radio and Plasma Wave Science package. A first paper (Chatain et al., 2021) introduces the new analysis method and discusses the identification of 4 electron populations produced by different ionization mechanisms. In this second paper, we present a statistic"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.12908","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2108.12908/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":"2026-07-05T03:57:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/LZM2o+b+VeWLaeNxpIhJiLomErG/yl5guBqd0DVni9/C1cyVtjv2J9w5a8OIOm5CJE0dAwB+mCqDPnDPTpVCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T01:59:46.458488Z"},"content_sha256":"ebb12e5091605343556f0c8913e7a24d85c42d9db28d480e48ffca7624d114b7","schema_version":"1.0","event_id":"sha256:ebb12e5091605343556f0c8913e7a24d85c42d9db28d480e48ffca7624d114b7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PDUAJ22FN6DYIDMWIV4AOE353H/bundle.json","state_url":"https://pith.science/pith/PDUAJ22FN6DYIDMWIV4AOE353H/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PDUAJ22FN6DYIDMWIV4AOE353H/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":"2026-08-16T01:59:46Z","links":{"resolver":"https://pith.science/pith/PDUAJ22FN6DYIDMWIV4AOE353H","bundle":"https://pith.science/pith/PDUAJ22FN6DYIDMWIV4AOE353H/bundle.json","state":"https://pith.science/pith/PDUAJ22FN6DYIDMWIV4AOE353H/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PDUAJ22FN6DYIDMWIV4AOE353H/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:PDUAJ22FN6DYIDMWIV4AOE353H","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":"1972528d2e5c041920eb4ba99de5802ebc751174a47687f95bb94337f5d331d7","cross_cats_sorted":["physics.space-ph"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-08-29T20:25:54Z","title_canon_sha256":"367ddc415df5d67943e49da664ae782e05c16a89f62202317fc66465ba4907ee"},"schema_version":"1.0","source":{"id":"2108.12908","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.12908","created_at":"2026-07-05T03:57:28Z"},{"alias_kind":"arxiv_version","alias_value":"2108.12908v2","created_at":"2026-07-05T03:57:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.12908","created_at":"2026-07-05T03:57:28Z"},{"alias_kind":"pith_short_12","alias_value":"PDUAJ22FN6DY","created_at":"2026-07-05T03:57:28Z"},{"alias_kind":"pith_short_16","alias_value":"PDUAJ22FN6DYIDMW","created_at":"2026-07-05T03:57:28Z"},{"alias_kind":"pith_short_8","alias_value":"PDUAJ22F","created_at":"2026-07-05T03:57:28Z"}],"graph_snapshots":[{"event_id":"sha256:ebb12e5091605343556f0c8913e7a24d85c42d9db28d480e48ffca7624d114b7","target":"graph","created_at":"2026-07-05T03:57:28Z","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/2108.12908/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The ionosphere of Titan hosts a complex ion chemistry leading to the formation of organic dust below 1200 km. Current models cannot fully explain the observed electron temperature in this dusty environment. To achieve new insight, we have re-analyzed the data taken in the ionosphere of Titan by the Cassini Langmuir probe (LP), part of the Radio and Plasma Wave Science package. A first paper (Chatain et al., 2021) introduces the new analysis method and discusses the identification of 4 electron populations produced by different ionization mechanisms. In this second paper, we present a statistic","authors_text":"A. Chatain, J.-E. Wahlund, L.Z. Hadid, M. Morooka, N. Carrasco, N.J.T. Edberg, O. Guaitella, O. Shebanits","cross_cats":["physics.space-ph"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-08-29T20:25:54Z","title":"Re-Analysis of the Cassini RPWS/LP Data in Titan's Ionosphere: 2. Statistics on 57 Flybys"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.12908","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":"sha256:9e4138f29d3af62b1728eb0d5433c77c9ac2500877b32b3d89d12c0d9a4ebf8a","target":"record","created_at":"2026-07-05T03:57:28Z","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":"1972528d2e5c041920eb4ba99de5802ebc751174a47687f95bb94337f5d331d7","cross_cats_sorted":["physics.space-ph"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-08-29T20:25:54Z","title_canon_sha256":"367ddc415df5d67943e49da664ae782e05c16a89f62202317fc66465ba4907ee"},"schema_version":"1.0","source":{"id":"2108.12908","kind":"arxiv","version":2}},"canonical_sha256":"78e804eb456f87840d96457807137dd9f9baf6184f3df064d4f369a5d2032879","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"78e804eb456f87840d96457807137dd9f9baf6184f3df064d4f369a5d2032879","first_computed_at":"2026-07-05T03:57:28.085448Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:57:28.085448Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Kif0aD9xH9EPACOwMZhMv5WrRFOiOI+6kWD2HXnZlwtBJl5LTtLbsp6/p8XqAQVfODumRYOlGDhUqpCUgJZ2CA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:57:28.086008Z","signed_message":"canonical_sha256_bytes"},"source_id":"2108.12908","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9e4138f29d3af62b1728eb0d5433c77c9ac2500877b32b3d89d12c0d9a4ebf8a","sha256:ebb12e5091605343556f0c8913e7a24d85c42d9db28d480e48ffca7624d114b7"],"state_sha256":"85cbf8d1c05f6c9e79f23193b2ec68edf29a7a5427cab8d96d148f92752ad203"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DSPPffmkC/yCTjsFXcimow13XfKHTrEv+bdIPrMcYwtwGkXC5aFODQQRqiDTKMsB370TL9ZSl89+5PM7W/RGBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T01:59:46.463533Z","bundle_sha256":"b5bc761e70fd3f82723594c5d439855983bfc077e9099f7857c2f22fc5f80d07"}}