{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:7G7MLBU7DMIS76BNMVSKCHZB6L","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":"a96c3d3e13d1e371e9ce00289b561acf264fee461bee916c4b6ea9e52ef29706","cross_cats_sorted":["eess.SP","math.IT"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IT","submitted_at":"2025-06-17T08:17:21Z","title_canon_sha256":"aed5c5fef7acb6452f4d652afb0d7ecde60544686dc038cba5064d1c47c8f644"},"schema_version":"1.0","source":{"id":"2506.14298","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.14298","created_at":"2026-07-05T11:22:52Z"},{"alias_kind":"arxiv_version","alias_value":"2506.14298v1","created_at":"2026-07-05T11:22:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.14298","created_at":"2026-07-05T11:22:52Z"},{"alias_kind":"pith_short_12","alias_value":"7G7MLBU7DMIS","created_at":"2026-07-05T11:22:52Z"},{"alias_kind":"pith_short_16","alias_value":"7G7MLBU7DMIS76BN","created_at":"2026-07-05T11:22:52Z"},{"alias_kind":"pith_short_8","alias_value":"7G7MLBU7","created_at":"2026-07-05T11:22:52Z"}],"graph_snapshots":[{"event_id":"sha256:1ed26686709a783f6efd78d0b7a7684b8da0047c097767eae0a4a346edb43592","target":"graph","created_at":"2026-07-05T11:22:52Z","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/2506.14298/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Unlike conventional systems using a fixed-location antenna, the channel capacity of the pinching-antenna system (PASS) is determined by the activated positions of pinching antennas. This article characterizes the capacity region of multiuser PASS, where a single pinched waveguide is deployed to enable both uplink and downlink communications. The capacity region of the uplink channel is first characterized. \\romannumeral1) For the single-pinch case, closed-form expressions are derived for the optimal antenna activation position, along with the corresponding capacity region and the achievable da","authors_text":"Chongjun Ouyang, Yuanwei Liu, Zhaolin Wang, Zhiguo Ding","cross_cats":["eess.SP","math.IT"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IT","submitted_at":"2025-06-17T08:17:21Z","title":"Capacity Characterization of Pinching-Antenna Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.14298","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":"sha256:2a1e96318c9801a76a1cb6c866e4f9388161be8594a9eb2911db5df7bbb76807","target":"record","created_at":"2026-07-05T11:22:52Z","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":"a96c3d3e13d1e371e9ce00289b561acf264fee461bee916c4b6ea9e52ef29706","cross_cats_sorted":["eess.SP","math.IT"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IT","submitted_at":"2025-06-17T08:17:21Z","title_canon_sha256":"aed5c5fef7acb6452f4d652afb0d7ecde60544686dc038cba5064d1c47c8f644"},"schema_version":"1.0","source":{"id":"2506.14298","kind":"arxiv","version":1}},"canonical_sha256":"f9bec5869f1b112ff82d6564a11f21f2d136f76c70b335b1310046dfc2aa54e0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f9bec5869f1b112ff82d6564a11f21f2d136f76c70b335b1310046dfc2aa54e0","first_computed_at":"2026-07-05T11:22:52.883293Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:22:52.883293Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"h2U1kWgYZ+ZPymlP757OQrO1CEgwWvxyifiJiM8SuKlL/2452/vpCKctK+TEKEDC3bGrlIEIQyNH682xkPAkBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:22:52.883756Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.14298","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2a1e96318c9801a76a1cb6c866e4f9388161be8594a9eb2911db5df7bbb76807","sha256:1ed26686709a783f6efd78d0b7a7684b8da0047c097767eae0a4a346edb43592"],"state_sha256":"dbb171240732e31b7b01a92c3a33e4cc3ec749583fbb04cf804e4f4e5393e859"}