{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:HQBUGPSQDGRHOHIH6GU7GXVBAG","short_pith_number":"pith:HQBUGPSQ","canonical_record":{"source":{"id":"2607.26570","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2026-07-29T07:48:18Z","cross_cats_sorted":["cs.SY","eess.SY"],"title_canon_sha256":"d648376506b2cc9527631dca192712c4de8c88b849a5c870aa9785086997bb6a","abstract_canon_sha256":"5b52d87569b6b436d3434e1a66a3cda8ee582cad590c430498c94f7cbfca32d6"},"schema_version":"1.0"},"canonical_sha256":"3c03433e5019a2771d07f1a9f35ea101be8c27a0723ad344d61886f7ed9fde69","source":{"kind":"arxiv","id":"2607.26570","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.26570","created_at":"2026-07-30T01:20:55Z"},{"alias_kind":"arxiv_version","alias_value":"2607.26570v1","created_at":"2026-07-30T01:20:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.26570","created_at":"2026-07-30T01:20:55Z"},{"alias_kind":"pith_short_12","alias_value":"HQBUGPSQDGRH","created_at":"2026-07-30T01:20:55Z"},{"alias_kind":"pith_short_16","alias_value":"HQBUGPSQDGRHOHIH","created_at":"2026-07-30T01:20:55Z"},{"alias_kind":"pith_short_8","alias_value":"HQBUGPSQ","created_at":"2026-07-30T01:20:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:HQBUGPSQDGRHOHIH6GU7GXVBAG","target":"record","payload":{"canonical_record":{"source":{"id":"2607.26570","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2026-07-29T07:48:18Z","cross_cats_sorted":["cs.SY","eess.SY"],"title_canon_sha256":"d648376506b2cc9527631dca192712c4de8c88b849a5c870aa9785086997bb6a","abstract_canon_sha256":"5b52d87569b6b436d3434e1a66a3cda8ee582cad590c430498c94f7cbfca32d6"},"schema_version":"1.0"},"canonical_sha256":"3c03433e5019a2771d07f1a9f35ea101be8c27a0723ad344d61886f7ed9fde69","receipt":{"kind":"pith_receipt","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3c03433e5019a2771d07f1a9f35ea101be8c27a0723ad344d61886f7ed9fde69","last_reissued_at":"2026-07-30T01:20:55.010820Z","signature_status":"unsigned_v0","first_computed_at":"2026-07-30T01:20:55.010820Z"},"source_kind":"arxiv","source_id":"2607.26570","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":"2026-07-30T01:20:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mIZ1rG7lwdmCHeCLHSng062c7jxdMCo+HxocMam4q0vpaM7imITmOyEYgVSv9WXUYINj+aXXU/gFyIAG7lldBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T09:35:18.329001Z"},"content_sha256":"79965abd13edea910e543bc1157a1ccecdd9399046d5c256c186644a2dede531","schema_version":"1.0","event_id":"sha256:79965abd13edea910e543bc1157a1ccecdd9399046d5c256c186644a2dede531"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:HQBUGPSQDGRHOHIH6GU7GXVBAG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Semi-Decentralized Multi-Spacecraft Collision Avoidance under Communication Constraints","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.SY","eess.SY"],"primary_cat":"cs.RO","authors_text":"Duncan Eddy, Grace Ra Kim, Mahdi Al-Husseini, Mykel J. Kochenderfer","submitted_at":"2026-07-29T07:48:18Z","abstract_excerpt":"Current spacecraft collision-avoidance operations rely on intermittent ground-station contacts, requiring operators to plan with delayed and asynchronously updated information. Consequently, maneuvers must be planned with only intermittent information sharing between operators, raising the question of how much coordination is needed to achieve collision-avoidance performance comparable to centralized planning. Although decision-theoretic approaches such as partially observable Markov decision processes (POMDPs) capture the sequential and uncertain nature of collision avoidance, existing multia"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.26570","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/2607.26570/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":"2026-07-30T01:20:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"po8vVP48AScQSk0CYfQty5+1xOl045njvwAj6bofgV0d6k7zVpzI/Q7KW74rLuv3YgcrjvsDRIqtxZVIfnjHCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T09:35:18.329535Z"},"content_sha256":"992d55ab302426eeb216eb652c92970eec97e044f896b311ca93c02f7338a807","schema_version":"1.0","event_id":"sha256:992d55ab302426eeb216eb652c92970eec97e044f896b311ca93c02f7338a807"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HQBUGPSQDGRHOHIH6GU7GXVBAG/bundle.json","state_url":"https://pith.science/pith/HQBUGPSQDGRHOHIH6GU7GXVBAG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HQBUGPSQDGRHOHIH6GU7GXVBAG/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":"2026-08-19T09:35:18Z","links":{"resolver":"https://pith.science/pith/HQBUGPSQDGRHOHIH6GU7GXVBAG","bundle":"https://pith.science/pith/HQBUGPSQDGRHOHIH6GU7GXVBAG/bundle.json","state":"https://pith.science/pith/HQBUGPSQDGRHOHIH6GU7GXVBAG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HQBUGPSQDGRHOHIH6GU7GXVBAG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:HQBUGPSQDGRHOHIH6GU7GXVBAG","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":"5b52d87569b6b436d3434e1a66a3cda8ee582cad590c430498c94f7cbfca32d6","cross_cats_sorted":["cs.SY","eess.SY"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2026-07-29T07:48:18Z","title_canon_sha256":"d648376506b2cc9527631dca192712c4de8c88b849a5c870aa9785086997bb6a"},"schema_version":"1.0","source":{"id":"2607.26570","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.26570","created_at":"2026-07-30T01:20:55Z"},{"alias_kind":"arxiv_version","alias_value":"2607.26570v1","created_at":"2026-07-30T01:20:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.26570","created_at":"2026-07-30T01:20:55Z"},{"alias_kind":"pith_short_12","alias_value":"HQBUGPSQDGRH","created_at":"2026-07-30T01:20:55Z"},{"alias_kind":"pith_short_16","alias_value":"HQBUGPSQDGRHOHIH","created_at":"2026-07-30T01:20:55Z"},{"alias_kind":"pith_short_8","alias_value":"HQBUGPSQ","created_at":"2026-07-30T01:20:55Z"}],"graph_snapshots":[{"event_id":"sha256:992d55ab302426eeb216eb652c92970eec97e044f896b311ca93c02f7338a807","target":"graph","created_at":"2026-07-30T01:20:55Z","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/2607.26570/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Current spacecraft collision-avoidance operations rely on intermittent ground-station contacts, requiring operators to plan with delayed and asynchronously updated information. Consequently, maneuvers must be planned with only intermittent information sharing between operators, raising the question of how much coordination is needed to achieve collision-avoidance performance comparable to centralized planning. Although decision-theoretic approaches such as partially observable Markov decision processes (POMDPs) capture the sequential and uncertain nature of collision avoidance, existing multia","authors_text":"Duncan Eddy, Grace Ra Kim, Mahdi Al-Husseini, Mykel J. Kochenderfer","cross_cats":["cs.SY","eess.SY"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2026-07-29T07:48:18Z","title":"Semi-Decentralized Multi-Spacecraft Collision Avoidance under Communication Constraints"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.26570","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":"sha256:79965abd13edea910e543bc1157a1ccecdd9399046d5c256c186644a2dede531","target":"record","created_at":"2026-07-30T01:20:55Z","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":"5b52d87569b6b436d3434e1a66a3cda8ee582cad590c430498c94f7cbfca32d6","cross_cats_sorted":["cs.SY","eess.SY"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2026-07-29T07:48:18Z","title_canon_sha256":"d648376506b2cc9527631dca192712c4de8c88b849a5c870aa9785086997bb6a"},"schema_version":"1.0","source":{"id":"2607.26570","kind":"arxiv","version":1}},"canonical_sha256":"3c03433e5019a2771d07f1a9f35ea101be8c27a0723ad344d61886f7ed9fde69","receipt":{"builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3c03433e5019a2771d07f1a9f35ea101be8c27a0723ad344d61886f7ed9fde69","first_computed_at":"2026-07-30T01:20:55.010820Z","kind":"pith_receipt","last_reissued_at":"2026-07-30T01:20:55.010820Z","receipt_version":"0.3","signature_status":"unsigned_v0"},"source_id":"2607.26570","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:79965abd13edea910e543bc1157a1ccecdd9399046d5c256c186644a2dede531","sha256:992d55ab302426eeb216eb652c92970eec97e044f896b311ca93c02f7338a807"],"state_sha256":"20a863a52ad621c071a0c93db667b2bd8a4ecf57fba3d5b2d474299d2bf2f624"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eajWvyn4XMzEMBNT75DnAlPJbF2BQbxSUdIVmX6NSscvTmLwnhkNRdBwtDy3zR6GYPRK473Z1HUKCY37rFRtBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T09:35:18.334899Z","bundle_sha256":"89dcd7a13c881bf1cc93a3cf7b44a0bb57100d676d39bdddbcac665e41db1cb7"}}