{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:CM43Z2BRZSCVRO6VTONNBBOESV","short_pith_number":"pith:CM43Z2BR","canonical_record":{"source":{"id":"2508.07131","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SP","submitted_at":"2025-08-10T00:37:30Z","cross_cats_sorted":["cs.IT","math.IT"],"title_canon_sha256":"aa00ac71a7a4c3c3603c4fce647d12b6e8c32d230ac0acbb7473a7f1f5f27e44","abstract_canon_sha256":"60a0133c4aed3ca594270f6abdf73d4c5c0795bc3e9a6bad9aa0bd9eb2181402"},"schema_version":"1.0"},"canonical_sha256":"1339bce831cc8558bbd59b9ad085c495656e9c8f874d345f6d1b239eade28c87","source":{"kind":"arxiv","id":"2508.07131","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.07131","created_at":"2026-07-05T11:51:41Z"},{"alias_kind":"arxiv_version","alias_value":"2508.07131v1","created_at":"2026-07-05T11:51:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.07131","created_at":"2026-07-05T11:51:41Z"},{"alias_kind":"pith_short_12","alias_value":"CM43Z2BRZSCV","created_at":"2026-07-05T11:51:41Z"},{"alias_kind":"pith_short_16","alias_value":"CM43Z2BRZSCVRO6V","created_at":"2026-07-05T11:51:41Z"},{"alias_kind":"pith_short_8","alias_value":"CM43Z2BR","created_at":"2026-07-05T11:51:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:CM43Z2BRZSCVRO6VTONNBBOESV","target":"record","payload":{"canonical_record":{"source":{"id":"2508.07131","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SP","submitted_at":"2025-08-10T00:37:30Z","cross_cats_sorted":["cs.IT","math.IT"],"title_canon_sha256":"aa00ac71a7a4c3c3603c4fce647d12b6e8c32d230ac0acbb7473a7f1f5f27e44","abstract_canon_sha256":"60a0133c4aed3ca594270f6abdf73d4c5c0795bc3e9a6bad9aa0bd9eb2181402"},"schema_version":"1.0"},"canonical_sha256":"1339bce831cc8558bbd59b9ad085c495656e9c8f874d345f6d1b239eade28c87","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:51:41.382937Z","signature_b64":"MY1wHfM8GlXHiFqw2vWB3MC9VCbn9LW2dOjxM7H0p1uaBem+yBItjm1ZfMaffz9LT1haVf/k/plnxsplA7oxBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1339bce831cc8558bbd59b9ad085c495656e9c8f874d345f6d1b239eade28c87","last_reissued_at":"2026-07-05T11:51:41.382433Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:51:41.382433Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2508.07131","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":"2026-07-05T11:51:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"puho/BH/+W81WB7wn60vqSKgf5eU0oY9J3wZSejpvGKMvfcls2qsdVH+ryJotBLeH5WkQ2u/TB3EtVGwxRYUDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T16:49:10.953538Z"},"content_sha256":"8edeb30f90b9f77474e8e44c90c1cfeafec0ade0cd03a460035981d03c61fd1a","schema_version":"1.0","event_id":"sha256:8edeb30f90b9f77474e8e44c90c1cfeafec0ade0cd03a460035981d03c61fd1a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:CM43Z2BRZSCVRO6VTONNBBOESV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Pinching-Antenna System Design with LoS Blockage: Does In-Waveguide Attenuation Matter?","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["cs.IT","math.IT"],"primary_cat":"eess.SP","authors_text":"Octavia A. Dobre, Tsung-Hui Chang, Yanqing Xu, Zhiguo Ding","submitted_at":"2025-08-10T00:37:30Z","abstract_excerpt":"In the literature of pinching-antenna systems, in-waveguide attenuation is often neglected to simplify system design and enable more tractable analysis. However, its effect on overall system performance has received limited attention in the existing literature. While a recent study has shown that, in line-of-sight (LoS)-dominated environments, the data rate loss incurred by omitting in-waveguide attenuation is negligible when the communication area is not excessively large, its effect under more general conditions remains unclear. This work extends the analysis to more realistic scenarios invo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.07131","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/2508.07131/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":"2026-07-05T11:51:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FsJGqJ5cSaVey1tUJbQijUY4B5JGxyCUDXptwZ4ws+IQm4y39PS2omqm4pl2F8J9p6ldV+zW57ddJXYTr6aXCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T16:49:10.954036Z"},"content_sha256":"2b2868ee2027fe692d403f1e4bca78f040bdd20bebc6db52d6b7ed6e9767e410","schema_version":"1.0","event_id":"sha256:2b2868ee2027fe692d403f1e4bca78f040bdd20bebc6db52d6b7ed6e9767e410"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CM43Z2BRZSCVRO6VTONNBBOESV/bundle.json","state_url":"https://pith.science/pith/CM43Z2BRZSCVRO6VTONNBBOESV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CM43Z2BRZSCVRO6VTONNBBOESV/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":"2026-08-04T16:49:10Z","links":{"resolver":"https://pith.science/pith/CM43Z2BRZSCVRO6VTONNBBOESV","bundle":"https://pith.science/pith/CM43Z2BRZSCVRO6VTONNBBOESV/bundle.json","state":"https://pith.science/pith/CM43Z2BRZSCVRO6VTONNBBOESV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CM43Z2BRZSCVRO6VTONNBBOESV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:CM43Z2BRZSCVRO6VTONNBBOESV","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":"60a0133c4aed3ca594270f6abdf73d4c5c0795bc3e9a6bad9aa0bd9eb2181402","cross_cats_sorted":["cs.IT","math.IT"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SP","submitted_at":"2025-08-10T00:37:30Z","title_canon_sha256":"aa00ac71a7a4c3c3603c4fce647d12b6e8c32d230ac0acbb7473a7f1f5f27e44"},"schema_version":"1.0","source":{"id":"2508.07131","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.07131","created_at":"2026-07-05T11:51:41Z"},{"alias_kind":"arxiv_version","alias_value":"2508.07131v1","created_at":"2026-07-05T11:51:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.07131","created_at":"2026-07-05T11:51:41Z"},{"alias_kind":"pith_short_12","alias_value":"CM43Z2BRZSCV","created_at":"2026-07-05T11:51:41Z"},{"alias_kind":"pith_short_16","alias_value":"CM43Z2BRZSCVRO6V","created_at":"2026-07-05T11:51:41Z"},{"alias_kind":"pith_short_8","alias_value":"CM43Z2BR","created_at":"2026-07-05T11:51:41Z"}],"graph_snapshots":[{"event_id":"sha256:2b2868ee2027fe692d403f1e4bca78f040bdd20bebc6db52d6b7ed6e9767e410","target":"graph","created_at":"2026-07-05T11:51:41Z","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/2508.07131/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In the literature of pinching-antenna systems, in-waveguide attenuation is often neglected to simplify system design and enable more tractable analysis. However, its effect on overall system performance has received limited attention in the existing literature. While a recent study has shown that, in line-of-sight (LoS)-dominated environments, the data rate loss incurred by omitting in-waveguide attenuation is negligible when the communication area is not excessively large, its effect under more general conditions remains unclear. This work extends the analysis to more realistic scenarios invo","authors_text":"Octavia A. Dobre, Tsung-Hui Chang, Yanqing Xu, Zhiguo Ding","cross_cats":["cs.IT","math.IT"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SP","submitted_at":"2025-08-10T00:37:30Z","title":"Pinching-Antenna System Design with LoS Blockage: Does In-Waveguide Attenuation Matter?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.07131","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":"sha256:8edeb30f90b9f77474e8e44c90c1cfeafec0ade0cd03a460035981d03c61fd1a","target":"record","created_at":"2026-07-05T11:51:41Z","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":"60a0133c4aed3ca594270f6abdf73d4c5c0795bc3e9a6bad9aa0bd9eb2181402","cross_cats_sorted":["cs.IT","math.IT"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SP","submitted_at":"2025-08-10T00:37:30Z","title_canon_sha256":"aa00ac71a7a4c3c3603c4fce647d12b6e8c32d230ac0acbb7473a7f1f5f27e44"},"schema_version":"1.0","source":{"id":"2508.07131","kind":"arxiv","version":1}},"canonical_sha256":"1339bce831cc8558bbd59b9ad085c495656e9c8f874d345f6d1b239eade28c87","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1339bce831cc8558bbd59b9ad085c495656e9c8f874d345f6d1b239eade28c87","first_computed_at":"2026-07-05T11:51:41.382433Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:51:41.382433Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MY1wHfM8GlXHiFqw2vWB3MC9VCbn9LW2dOjxM7H0p1uaBem+yBItjm1ZfMaffz9LT1haVf/k/plnxsplA7oxBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:51:41.382937Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.07131","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8edeb30f90b9f77474e8e44c90c1cfeafec0ade0cd03a460035981d03c61fd1a","sha256:2b2868ee2027fe692d403f1e4bca78f040bdd20bebc6db52d6b7ed6e9767e410"],"state_sha256":"66a226974755e070ec815898fab31488146fac9cb9ad73079ac6d1a3dac468ec"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SufHQXe7RQvIVh/tlfx7JVcjVGdaJLL0LFww8E+xSWewOzPjPAxt+qtfV7rQC0pXapjZKWsPaADZemHPzySYCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T16:49:10.957876Z","bundle_sha256":"20cb29e6f382829796ee93514b917f9f91867e165dd91cd4aed14d7170899006"}}