{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:WX6U7GLKJWYIRIES663ILKLCZS","short_pith_number":"pith:WX6U7GLK","canonical_record":{"source":{"id":"1305.2211","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-05-09T20:45:48Z","cross_cats_sorted":[],"title_canon_sha256":"5b1ec8353e93ba197208e30afce12089e276b03c9b9f9022d605044ffefbf6e4","abstract_canon_sha256":"e457bf51b7469b42b9fbea26c2bf22a23f7b3dacdce5f37b953c3a58aba2d938"},"schema_version":"1.0"},"canonical_sha256":"b5fd4f996a4db088a092f7b685a962cc8997bb51c1ed2cb4072a2288e8624341","source":{"kind":"arxiv","id":"1305.2211","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.2211","created_at":"2026-05-18T03:25:03Z"},{"alias_kind":"arxiv_version","alias_value":"1305.2211v1","created_at":"2026-05-18T03:25:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.2211","created_at":"2026-05-18T03:25:03Z"},{"alias_kind":"pith_short_12","alias_value":"WX6U7GLKJWYI","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"WX6U7GLKJWYIRIES","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"WX6U7GLK","created_at":"2026-05-18T12:28:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:WX6U7GLKJWYIRIES663ILKLCZS","target":"record","payload":{"canonical_record":{"source":{"id":"1305.2211","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-05-09T20:45:48Z","cross_cats_sorted":[],"title_canon_sha256":"5b1ec8353e93ba197208e30afce12089e276b03c9b9f9022d605044ffefbf6e4","abstract_canon_sha256":"e457bf51b7469b42b9fbea26c2bf22a23f7b3dacdce5f37b953c3a58aba2d938"},"schema_version":"1.0"},"canonical_sha256":"b5fd4f996a4db088a092f7b685a962cc8997bb51c1ed2cb4072a2288e8624341","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:25:03.968475Z","signature_b64":"sUJ0ebHSiFtvUymiuYMio0QbpVF0J3DWzTXNqvipSsuS6S/40I1miZUtOdLUFtfJrrrA6etbpyeOpNSA/mWiAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b5fd4f996a4db088a092f7b685a962cc8997bb51c1ed2cb4072a2288e8624341","last_reissued_at":"2026-05-18T03:25:03.968059Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:25:03.968059Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1305.2211","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":"2026-05-18T03:25:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f8e7Ysqh/POND4OaZxw2bgAj+T3BQlwjG1VVrI417YiK/4f7ARuIWngf6VLWlWKuKIbipb7/VURU20ugbsaWCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T02:29:10.020268Z"},"content_sha256":"c2f3496b46950ce9b892f021dee5a7b07c5018d8eacf3002290146541973beec","schema_version":"1.0","event_id":"sha256:c2f3496b46950ce9b892f021dee5a7b07c5018d8eacf3002290146541973beec"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:WX6U7GLKJWYIRIES663ILKLCZS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"In Situ Measurements of the Size and Density of Titan Aerosol Analogues","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Margaret A. Tolbert, Sarah M. Horst","submitted_at":"2013-05-09T20:45:48Z","abstract_excerpt":"The organic haze produced from complex CH4/N2 chemistry in the atmosphere of Titan plays an important role in processes that occur in the atmosphere and on its surface. The haze particles act as condensation nuclei and are therefore involved in Titan's methane hydrological cycle. They also may behave like sediment on Titan's surface and participate in both fluvial and aeolian processes. Models that seek to understand these processes require information about the physical properties of the particles including their size and density. Although measurements obtained by Cassini-Huygens have placed "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.2211","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":"2026-05-18T03:25:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"V+RNUVZLizQT3I/SI1GoojY+5wherAb4B+D5dnFyux2Qss1VINyA3AcQaeosmzixlEr1lK5zSJ0BRaaHQkzjBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T02:29:10.020757Z"},"content_sha256":"540a5178d790489f01820ec3a3b2197f00bfe730a107ec3196ef07a37cddbc4f","schema_version":"1.0","event_id":"sha256:540a5178d790489f01820ec3a3b2197f00bfe730a107ec3196ef07a37cddbc4f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WX6U7GLKJWYIRIES663ILKLCZS/bundle.json","state_url":"https://pith.science/pith/WX6U7GLKJWYIRIES663ILKLCZS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WX6U7GLKJWYIRIES663ILKLCZS/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":"2026-06-02T02:29:10Z","links":{"resolver":"https://pith.science/pith/WX6U7GLKJWYIRIES663ILKLCZS","bundle":"https://pith.science/pith/WX6U7GLKJWYIRIES663ILKLCZS/bundle.json","state":"https://pith.science/pith/WX6U7GLKJWYIRIES663ILKLCZS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WX6U7GLKJWYIRIES663ILKLCZS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:WX6U7GLKJWYIRIES663ILKLCZS","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":"e457bf51b7469b42b9fbea26c2bf22a23f7b3dacdce5f37b953c3a58aba2d938","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-05-09T20:45:48Z","title_canon_sha256":"5b1ec8353e93ba197208e30afce12089e276b03c9b9f9022d605044ffefbf6e4"},"schema_version":"1.0","source":{"id":"1305.2211","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.2211","created_at":"2026-05-18T03:25:03Z"},{"alias_kind":"arxiv_version","alias_value":"1305.2211v1","created_at":"2026-05-18T03:25:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.2211","created_at":"2026-05-18T03:25:03Z"},{"alias_kind":"pith_short_12","alias_value":"WX6U7GLKJWYI","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"WX6U7GLKJWYIRIES","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"WX6U7GLK","created_at":"2026-05-18T12:28:06Z"}],"graph_snapshots":[{"event_id":"sha256:540a5178d790489f01820ec3a3b2197f00bfe730a107ec3196ef07a37cddbc4f","target":"graph","created_at":"2026-05-18T03:25:03Z","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":"The organic haze produced from complex CH4/N2 chemistry in the atmosphere of Titan plays an important role in processes that occur in the atmosphere and on its surface. The haze particles act as condensation nuclei and are therefore involved in Titan's methane hydrological cycle. They also may behave like sediment on Titan's surface and participate in both fluvial and aeolian processes. Models that seek to understand these processes require information about the physical properties of the particles including their size and density. Although measurements obtained by Cassini-Huygens have placed ","authors_text":"Margaret A. Tolbert, Sarah M. Horst","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-05-09T20:45:48Z","title":"In Situ Measurements of the Size and Density of Titan Aerosol Analogues"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.2211","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:c2f3496b46950ce9b892f021dee5a7b07c5018d8eacf3002290146541973beec","target":"record","created_at":"2026-05-18T03:25:03Z","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":"e457bf51b7469b42b9fbea26c2bf22a23f7b3dacdce5f37b953c3a58aba2d938","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-05-09T20:45:48Z","title_canon_sha256":"5b1ec8353e93ba197208e30afce12089e276b03c9b9f9022d605044ffefbf6e4"},"schema_version":"1.0","source":{"id":"1305.2211","kind":"arxiv","version":1}},"canonical_sha256":"b5fd4f996a4db088a092f7b685a962cc8997bb51c1ed2cb4072a2288e8624341","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b5fd4f996a4db088a092f7b685a962cc8997bb51c1ed2cb4072a2288e8624341","first_computed_at":"2026-05-18T03:25:03.968059Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:25:03.968059Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sUJ0ebHSiFtvUymiuYMio0QbpVF0J3DWzTXNqvipSsuS6S/40I1miZUtOdLUFtfJrrrA6etbpyeOpNSA/mWiAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:25:03.968475Z","signed_message":"canonical_sha256_bytes"},"source_id":"1305.2211","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c2f3496b46950ce9b892f021dee5a7b07c5018d8eacf3002290146541973beec","sha256:540a5178d790489f01820ec3a3b2197f00bfe730a107ec3196ef07a37cddbc4f"],"state_sha256":"32de0b3c95e3f85ec6b2a696096c29329d71c41c45e9b34dca992c6c0df05dc7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SEa2pXdaj6NZ8HFcv9fFQh5Tecns3gfwnIxOfhxQtcDpL1rJugYv5yRLf2yizz8gbzs+FXeutIaeu++ewszhCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T02:29:10.022706Z","bundle_sha256":"7628f03ce55978959289c81bdbbc74a39a27eb7c46f860bf2a959143f0a89400"}}