{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:E4IDJGV2YZZD5ZGQY5YW2UK5LT","short_pith_number":"pith:E4IDJGV2","canonical_record":{"source":{"id":"2605.21771","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.SY","submitted_at":"2026-05-20T22:06:25Z","cross_cats_sorted":["cs.MA","cs.SY"],"title_canon_sha256":"40ac78cbba71ade61610f71468650bfabc749c08947e7bbf4a0dcc47872a67b2","abstract_canon_sha256":"66e1652514fa37ab759cf7121520d5ca69127f3d5488d7590b2142c64c5c139a"},"schema_version":"1.0"},"canonical_sha256":"2710349abac6723ee4d0c7716d515d5ce991279da451be7d793c9640da5c17dc","source":{"kind":"arxiv","id":"2605.21771","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.21771","created_at":"2026-05-22T01:03:31Z"},{"alias_kind":"arxiv_version","alias_value":"2605.21771v1","created_at":"2026-05-22T01:03:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.21771","created_at":"2026-05-22T01:03:31Z"},{"alias_kind":"pith_short_12","alias_value":"E4IDJGV2YZZD","created_at":"2026-05-22T01:03:31Z"},{"alias_kind":"pith_short_16","alias_value":"E4IDJGV2YZZD5ZGQ","created_at":"2026-05-22T01:03:31Z"},{"alias_kind":"pith_short_8","alias_value":"E4IDJGV2","created_at":"2026-05-22T01:03:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:E4IDJGV2YZZD5ZGQY5YW2UK5LT","target":"record","payload":{"canonical_record":{"source":{"id":"2605.21771","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.SY","submitted_at":"2026-05-20T22:06:25Z","cross_cats_sorted":["cs.MA","cs.SY"],"title_canon_sha256":"40ac78cbba71ade61610f71468650bfabc749c08947e7bbf4a0dcc47872a67b2","abstract_canon_sha256":"66e1652514fa37ab759cf7121520d5ca69127f3d5488d7590b2142c64c5c139a"},"schema_version":"1.0"},"canonical_sha256":"2710349abac6723ee4d0c7716d515d5ce991279da451be7d793c9640da5c17dc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-22T01:03:31.197399Z","signature_b64":"o5i9iQ9yggQ0ICpTgEnuKuqmpf//KdIGoKKz0THGbX8DjBCU7fGGb1tqr6H9KgcHjQ2UQgAvhLC7jA7WbhVLDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2710349abac6723ee4d0c7716d515d5ce991279da451be7d793c9640da5c17dc","last_reissued_at":"2026-05-22T01:03:31.196874Z","signature_status":"signed_v1","first_computed_at":"2026-05-22T01:03:31.196874Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.21771","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":"2026-05-22T01:03:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FaoLx31ExIMEpvwU4DpQs125/okm7eYRArafRWnTi+TuZ/pMpbUKYo9EsRU3+itzXaOfZtK3CeqNmVvClYA7Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T11:30:25.566975Z"},"content_sha256":"027caa7f3a647cfc6e36a8c7aa0fd605bcb500d324a3be1ce7446c439b7fc41f","schema_version":"1.0","event_id":"sha256:027caa7f3a647cfc6e36a8c7aa0fd605bcb500d324a3be1ce7446c439b7fc41f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:E4IDJGV2YZZD5ZGQY5YW2UK5LT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Secure Coordination for Vertiport Sequencing in Advanced Air Mobility","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.MA","cs.SY"],"primary_cat":"eess.SY","authors_text":"David Fridovich-Keil, Filippos Fotiadis, Jaehan Im, Ufuk Topcu","submitted_at":"2026-05-20T22:06:25Z","abstract_excerpt":"Advanced air mobility operations will require reliable coordination mechanisms for managing dense traffic near vertiports. However, sequencing decisions may become vulnerable when they rely on potentially falsified self-reported information such as estimated time of arrival. Self-interested vehicles may misreport their arrival times to obtain favorable landing priority, while malicious actors may spoof information to disrupt sequencing decisions or induce unnecessary congestion. This paper studies secure coordination for vertiport sequencing under sensing uncertainty. We consider a coordinator"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.21771","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/2605.21771/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":"2026-05-22T01:03:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vbbZzEV4iu14QlDBkZWlfPHizOQsEjWiz+d5FRKf7FaF5H7PltjTvTLp6/tPf48D9BqoLTx9Av1a2wMqqI/MCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T11:30:25.567696Z"},"content_sha256":"2e4fe0db47bfa8ac0aeb9815364c57979686b2537401f897820d2e1d4dc23dff","schema_version":"1.0","event_id":"sha256:2e4fe0db47bfa8ac0aeb9815364c57979686b2537401f897820d2e1d4dc23dff"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/E4IDJGV2YZZD5ZGQY5YW2UK5LT/bundle.json","state_url":"https://pith.science/pith/E4IDJGV2YZZD5ZGQY5YW2UK5LT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/E4IDJGV2YZZD5ZGQY5YW2UK5LT/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":"2026-06-02T11:30:25Z","links":{"resolver":"https://pith.science/pith/E4IDJGV2YZZD5ZGQY5YW2UK5LT","bundle":"https://pith.science/pith/E4IDJGV2YZZD5ZGQY5YW2UK5LT/bundle.json","state":"https://pith.science/pith/E4IDJGV2YZZD5ZGQY5YW2UK5LT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/E4IDJGV2YZZD5ZGQY5YW2UK5LT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:E4IDJGV2YZZD5ZGQY5YW2UK5LT","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":"66e1652514fa37ab759cf7121520d5ca69127f3d5488d7590b2142c64c5c139a","cross_cats_sorted":["cs.MA","cs.SY"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.SY","submitted_at":"2026-05-20T22:06:25Z","title_canon_sha256":"40ac78cbba71ade61610f71468650bfabc749c08947e7bbf4a0dcc47872a67b2"},"schema_version":"1.0","source":{"id":"2605.21771","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.21771","created_at":"2026-05-22T01:03:31Z"},{"alias_kind":"arxiv_version","alias_value":"2605.21771v1","created_at":"2026-05-22T01:03:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.21771","created_at":"2026-05-22T01:03:31Z"},{"alias_kind":"pith_short_12","alias_value":"E4IDJGV2YZZD","created_at":"2026-05-22T01:03:31Z"},{"alias_kind":"pith_short_16","alias_value":"E4IDJGV2YZZD5ZGQ","created_at":"2026-05-22T01:03:31Z"},{"alias_kind":"pith_short_8","alias_value":"E4IDJGV2","created_at":"2026-05-22T01:03:31Z"}],"graph_snapshots":[{"event_id":"sha256:2e4fe0db47bfa8ac0aeb9815364c57979686b2537401f897820d2e1d4dc23dff","target":"graph","created_at":"2026-05-22T01:03:31Z","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/2605.21771/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Advanced air mobility operations will require reliable coordination mechanisms for managing dense traffic near vertiports. However, sequencing decisions may become vulnerable when they rely on potentially falsified self-reported information such as estimated time of arrival. Self-interested vehicles may misreport their arrival times to obtain favorable landing priority, while malicious actors may spoof information to disrupt sequencing decisions or induce unnecessary congestion. This paper studies secure coordination for vertiport sequencing under sensing uncertainty. We consider a coordinator","authors_text":"David Fridovich-Keil, Filippos Fotiadis, Jaehan Im, Ufuk Topcu","cross_cats":["cs.MA","cs.SY"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.SY","submitted_at":"2026-05-20T22:06:25Z","title":"Secure Coordination for Vertiport Sequencing in Advanced Air Mobility"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.21771","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":"sha256:027caa7f3a647cfc6e36a8c7aa0fd605bcb500d324a3be1ce7446c439b7fc41f","target":"record","created_at":"2026-05-22T01:03:31Z","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":"66e1652514fa37ab759cf7121520d5ca69127f3d5488d7590b2142c64c5c139a","cross_cats_sorted":["cs.MA","cs.SY"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.SY","submitted_at":"2026-05-20T22:06:25Z","title_canon_sha256":"40ac78cbba71ade61610f71468650bfabc749c08947e7bbf4a0dcc47872a67b2"},"schema_version":"1.0","source":{"id":"2605.21771","kind":"arxiv","version":1}},"canonical_sha256":"2710349abac6723ee4d0c7716d515d5ce991279da451be7d793c9640da5c17dc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2710349abac6723ee4d0c7716d515d5ce991279da451be7d793c9640da5c17dc","first_computed_at":"2026-05-22T01:03:31.196874Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-22T01:03:31.196874Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"o5i9iQ9yggQ0ICpTgEnuKuqmpf//KdIGoKKz0THGbX8DjBCU7fGGb1tqr6H9KgcHjQ2UQgAvhLC7jA7WbhVLDw==","signature_status":"signed_v1","signed_at":"2026-05-22T01:03:31.197399Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.21771","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:027caa7f3a647cfc6e36a8c7aa0fd605bcb500d324a3be1ce7446c439b7fc41f","sha256:2e4fe0db47bfa8ac0aeb9815364c57979686b2537401f897820d2e1d4dc23dff"],"state_sha256":"7bad536e47858e267487128c96f8a9061c388cddbf522a7b668a2faf32b89a65"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VVkgSNx1NOA1SymUqzJVwhlimZlEldi0ArdmWWGuQ0otWl3XAK7ylkHo5PzTyUZYl8wUaBtfC91cmDHhxWocBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T11:30:25.570891Z","bundle_sha256":"b7f89da1006cc071fbaf6f39a68da7ac22e6beb41d7044b3756e8528ee26caf8"}}