{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:L34M4IZM6WJYQ3BJJ3CO2K26IB","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":"ac7a25a92ad611f851b000bec538b6b705181b3fc3457d93f196bcd81ed59b3e","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.AI","submitted_at":"2026-06-04T15:52:21Z","title_canon_sha256":"4082b489a00558c21217c1182df92ddcc993e76f8314d50e5f64287820ceb897"},"schema_version":"1.0","source":{"id":"2606.06311","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.06311","created_at":"2026-06-05T01:15:41Z"},{"alias_kind":"arxiv_version","alias_value":"2606.06311v1","created_at":"2026-06-05T01:15:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.06311","created_at":"2026-06-05T01:15:41Z"},{"alias_kind":"pith_short_12","alias_value":"L34M4IZM6WJY","created_at":"2026-06-05T01:15:41Z"},{"alias_kind":"pith_short_16","alias_value":"L34M4IZM6WJYQ3BJ","created_at":"2026-06-05T01:15:41Z"},{"alias_kind":"pith_short_8","alias_value":"L34M4IZM","created_at":"2026-06-05T01:15:41Z"}],"graph_snapshots":[{"event_id":"sha256:7c09fa6beff3961ba22b241ebb588070ca3c7bd0989be35cfde6c6e49cd98d15","target":"graph","created_at":"2026-06-05T01:15:41Z","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/2606.06311/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Accurate vessel trajectory prediction is essential for safe and efficient maritime operations, enabling collision avoidance and supporting route optimization. Although memory-augmented neural networks have recently shown strong performance in pedestrian and road-vehicle trajectory prediction by selectively retrieving relevant information from an external memory, their potential for vessel trajectory prediction remains underexplored. This paper presents an empirical investigation of memory-based trajectory prediction using Automatic Identification System (AIS) data. Experiments on data from the","authors_text":"Heeyoung Kim, Sanha Chang, Wonmo Koo","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.AI","submitted_at":"2026-06-04T15:52:21Z","title":"AIS-Based Vessel Trajectory Prediction Using Memory-Augmented Neural Networks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.06311","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":"sha256:2c78ed5a4f02c12d2ff70ab69ea4947dad3766a1633ceb3a0b64a009a3572580","target":"record","created_at":"2026-06-05T01:15:41Z","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":"ac7a25a92ad611f851b000bec538b6b705181b3fc3457d93f196bcd81ed59b3e","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.AI","submitted_at":"2026-06-04T15:52:21Z","title_canon_sha256":"4082b489a00558c21217c1182df92ddcc993e76f8314d50e5f64287820ceb897"},"schema_version":"1.0","source":{"id":"2606.06311","kind":"arxiv","version":1}},"canonical_sha256":"5ef8ce232cf593886c294ec4ed2b5e405f4b826d1b61bd5c8fa5e9fb3594fd81","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5ef8ce232cf593886c294ec4ed2b5e405f4b826d1b61bd5c8fa5e9fb3594fd81","first_computed_at":"2026-06-05T01:15:41.552802Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-05T01:15:41.552802Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RCa5Q0VTobwg8DvnyFeVjNmg2yo1Dyz6Ju0GYnD8bfLyizFmP+AIs23/LiD5tzmyIPa1OOt094poQZAeS7M9CA==","signature_status":"signed_v1","signed_at":"2026-06-05T01:15:41.553203Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.06311","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2c78ed5a4f02c12d2ff70ab69ea4947dad3766a1633ceb3a0b64a009a3572580","sha256:7c09fa6beff3961ba22b241ebb588070ca3c7bd0989be35cfde6c6e49cd98d15"],"state_sha256":"2f6fe111b72a5383a1f19c6d12924561ca11b94733ecc0d4afda103891709d83"}