{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:Z2M3VHDWYAETF4MYSM2ZB2VYZF","short_pith_number":"pith:Z2M3VHDW","canonical_record":{"source":{"id":"2211.01721","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-11-03T11:23:11Z","cross_cats_sorted":["astro-ph.SR","nlin.CD"],"title_canon_sha256":"15f545fb70d317aeeb557b9584323166f9a86924169d3778ad70029753b19faa","abstract_canon_sha256":"114c38f512e0bfacee6645d58bddeee97cb17f261ab3eff89c8bd0038e9e76bf"},"schema_version":"1.0"},"canonical_sha256":"ce99ba9c76c00932f198933590eab8c9655e6579b4256943cbc6ac526515af0e","source":{"kind":"arxiv","id":"2211.01721","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2211.01721","created_at":"2026-07-05T05:21:28Z"},{"alias_kind":"arxiv_version","alias_value":"2211.01721v2","created_at":"2026-07-05T05:21:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2211.01721","created_at":"2026-07-05T05:21:28Z"},{"alias_kind":"pith_short_12","alias_value":"Z2M3VHDWYAET","created_at":"2026-07-05T05:21:28Z"},{"alias_kind":"pith_short_16","alias_value":"Z2M3VHDWYAETF4MY","created_at":"2026-07-05T05:21:28Z"},{"alias_kind":"pith_short_8","alias_value":"Z2M3VHDW","created_at":"2026-07-05T05:21:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:Z2M3VHDWYAETF4MYSM2ZB2VYZF","target":"record","payload":{"canonical_record":{"source":{"id":"2211.01721","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-11-03T11:23:11Z","cross_cats_sorted":["astro-ph.SR","nlin.CD"],"title_canon_sha256":"15f545fb70d317aeeb557b9584323166f9a86924169d3778ad70029753b19faa","abstract_canon_sha256":"114c38f512e0bfacee6645d58bddeee97cb17f261ab3eff89c8bd0038e9e76bf"},"schema_version":"1.0"},"canonical_sha256":"ce99ba9c76c00932f198933590eab8c9655e6579b4256943cbc6ac526515af0e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:21:28.252281Z","signature_b64":"ogQB9V4pjt/eNGbqWpRSZKYkilGl4R/+XmJRcM/WYIlyTmsS4aidkRkqGzmeMbSvJe+zmTNfjvqi0fhHJWrBCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ce99ba9c76c00932f198933590eab8c9655e6579b4256943cbc6ac526515af0e","last_reissued_at":"2026-07-05T05:21:28.251897Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:21:28.251897Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2211.01721","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":"2026-07-05T05:21:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KagFLfjEVt0RVCf/jHIPliCBhMJ2Wh0WlTUeGlYX5W55GysuzHV1gsCJkS0IPzSTgYfTO5AJYj+F0v8raxlVDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T15:38:18.922132Z"},"content_sha256":"00e23af8c65c0f3f461b19c4552167b075f9f0d69397961a2d9e8897b0657484","schema_version":"1.0","event_id":"sha256:00e23af8c65c0f3f461b19c4552167b075f9f0d69397961a2d9e8897b0657484"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:Z2M3VHDWYAETF4MYSM2ZB2VYZF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Chaos in multiplanetary extrasolar systems","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":["astro-ph.SR","nlin.CD"],"primary_cat":"astro-ph.EP","authors_text":"Martin Va\\v{n}ko, Pavol Gajdo\\v{s}","submitted_at":"2022-11-03T11:23:11Z","abstract_excerpt":"Here we present an initial look at the dynamics and stability of 178 multiplanetary systems which are already confirmed and listed in the NASA Exoplanet Archive. To distinguish between the chaotic and regular nature of a system, the value of the MEGNO indicator for each system was determined. Almost three-quarters of them could be labelled as long-term stable. Only 45 studied systems show chaotic behaviour. We consequently investigated the effects of the number of planets and their parameters on the system stability. A comparison of results obtained using the MEGNO indicator and machine-learni"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.01721","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/2211.01721/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":"2026-07-05T05:21:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"j6Mb2wWv7YV5ecTHGg1Uw2HhxRJABk4kl7UTSgB3bVYXWDm+9iGTyfFfiomkhyVR+/srCyQpUtQKYZ5v0QKUBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T15:38:18.922705Z"},"content_sha256":"0ed4a3f3fed1c63ec0766d57df2c5fd231e82dea1b648970e8712da00f894471","schema_version":"1.0","event_id":"sha256:0ed4a3f3fed1c63ec0766d57df2c5fd231e82dea1b648970e8712da00f894471"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z2M3VHDWYAETF4MYSM2ZB2VYZF/bundle.json","state_url":"https://pith.science/pith/Z2M3VHDWYAETF4MYSM2ZB2VYZF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z2M3VHDWYAETF4MYSM2ZB2VYZF/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":"2026-08-19T15:38:18Z","links":{"resolver":"https://pith.science/pith/Z2M3VHDWYAETF4MYSM2ZB2VYZF","bundle":"https://pith.science/pith/Z2M3VHDWYAETF4MYSM2ZB2VYZF/bundle.json","state":"https://pith.science/pith/Z2M3VHDWYAETF4MYSM2ZB2VYZF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z2M3VHDWYAETF4MYSM2ZB2VYZF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:Z2M3VHDWYAETF4MYSM2ZB2VYZF","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":"114c38f512e0bfacee6645d58bddeee97cb17f261ab3eff89c8bd0038e9e76bf","cross_cats_sorted":["astro-ph.SR","nlin.CD"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-11-03T11:23:11Z","title_canon_sha256":"15f545fb70d317aeeb557b9584323166f9a86924169d3778ad70029753b19faa"},"schema_version":"1.0","source":{"id":"2211.01721","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2211.01721","created_at":"2026-07-05T05:21:28Z"},{"alias_kind":"arxiv_version","alias_value":"2211.01721v2","created_at":"2026-07-05T05:21:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2211.01721","created_at":"2026-07-05T05:21:28Z"},{"alias_kind":"pith_short_12","alias_value":"Z2M3VHDWYAET","created_at":"2026-07-05T05:21:28Z"},{"alias_kind":"pith_short_16","alias_value":"Z2M3VHDWYAETF4MY","created_at":"2026-07-05T05:21:28Z"},{"alias_kind":"pith_short_8","alias_value":"Z2M3VHDW","created_at":"2026-07-05T05:21:28Z"}],"graph_snapshots":[{"event_id":"sha256:0ed4a3f3fed1c63ec0766d57df2c5fd231e82dea1b648970e8712da00f894471","target":"graph","created_at":"2026-07-05T05:21:28Z","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/2211.01721/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Here we present an initial look at the dynamics and stability of 178 multiplanetary systems which are already confirmed and listed in the NASA Exoplanet Archive. To distinguish between the chaotic and regular nature of a system, the value of the MEGNO indicator for each system was determined. Almost three-quarters of them could be labelled as long-term stable. Only 45 studied systems show chaotic behaviour. We consequently investigated the effects of the number of planets and their parameters on the system stability. A comparison of results obtained using the MEGNO indicator and machine-learni","authors_text":"Martin Va\\v{n}ko, Pavol Gajdo\\v{s}","cross_cats":["astro-ph.SR","nlin.CD"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-11-03T11:23:11Z","title":"Chaos in multiplanetary extrasolar systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.01721","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":"sha256:00e23af8c65c0f3f461b19c4552167b075f9f0d69397961a2d9e8897b0657484","target":"record","created_at":"2026-07-05T05:21:28Z","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":"114c38f512e0bfacee6645d58bddeee97cb17f261ab3eff89c8bd0038e9e76bf","cross_cats_sorted":["astro-ph.SR","nlin.CD"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-11-03T11:23:11Z","title_canon_sha256":"15f545fb70d317aeeb557b9584323166f9a86924169d3778ad70029753b19faa"},"schema_version":"1.0","source":{"id":"2211.01721","kind":"arxiv","version":2}},"canonical_sha256":"ce99ba9c76c00932f198933590eab8c9655e6579b4256943cbc6ac526515af0e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ce99ba9c76c00932f198933590eab8c9655e6579b4256943cbc6ac526515af0e","first_computed_at":"2026-07-05T05:21:28.251897Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:21:28.251897Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ogQB9V4pjt/eNGbqWpRSZKYkilGl4R/+XmJRcM/WYIlyTmsS4aidkRkqGzmeMbSvJe+zmTNfjvqi0fhHJWrBCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:21:28.252281Z","signed_message":"canonical_sha256_bytes"},"source_id":"2211.01721","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:00e23af8c65c0f3f461b19c4552167b075f9f0d69397961a2d9e8897b0657484","sha256:0ed4a3f3fed1c63ec0766d57df2c5fd231e82dea1b648970e8712da00f894471"],"state_sha256":"4b3670caa0835cc8634833d94d91537678beae82da222e2c40be7fd8cb4c10a2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pctJWa4CEOZ9aHiF6MPESESZT/lOlpRsF7XOJct/9GqiRL/gr990HDQV2L613m1AoRBvF6J7VkoIW7meUOLRBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T15:38:18.928358Z","bundle_sha256":"98876324132794b7b6f3091678a198ff3cd089fde0e4c46d2732d4c59e2d23f1"}}