{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:NS2NEAODYXS7A5JFIBGOOFVPGA","short_pith_number":"pith:NS2NEAOD","canonical_record":{"source":{"id":"1904.01627","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-03-29T16:28:46Z","cross_cats_sorted":["physics.app-ph"],"title_canon_sha256":"c6af513193aa9eb2a740c166feb317080f88cc2f08b3f9f90299142b54c2cdc0","abstract_canon_sha256":"e5be11641460f9558394f7fb5157ca0a3bd84261097e384a91a3263216ac4778"},"schema_version":"1.0"},"canonical_sha256":"6cb4d201c3c5e5f07525404ce716af300e738cb6f6e46d11a72fc8cfc85da4a8","source":{"kind":"arxiv","id":"1904.01627","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.01627","created_at":"2026-07-05T00:52:05Z"},{"alias_kind":"arxiv_version","alias_value":"1904.01627v1","created_at":"2026-07-05T00:52:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.01627","created_at":"2026-07-05T00:52:05Z"},{"alias_kind":"pith_short_12","alias_value":"NS2NEAODYXS7","created_at":"2026-07-05T00:52:05Z"},{"alias_kind":"pith_short_16","alias_value":"NS2NEAODYXS7A5JF","created_at":"2026-07-05T00:52:05Z"},{"alias_kind":"pith_short_8","alias_value":"NS2NEAOD","created_at":"2026-07-05T00:52:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:NS2NEAODYXS7A5JFIBGOOFVPGA","target":"record","payload":{"canonical_record":{"source":{"id":"1904.01627","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-03-29T16:28:46Z","cross_cats_sorted":["physics.app-ph"],"title_canon_sha256":"c6af513193aa9eb2a740c166feb317080f88cc2f08b3f9f90299142b54c2cdc0","abstract_canon_sha256":"e5be11641460f9558394f7fb5157ca0a3bd84261097e384a91a3263216ac4778"},"schema_version":"1.0"},"canonical_sha256":"6cb4d201c3c5e5f07525404ce716af300e738cb6f6e46d11a72fc8cfc85da4a8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:52:05.736790Z","signature_b64":"8GUxU0llO+o0svAnojTwYpnAYS7tdQ2OLj60g1Mz05HotYV9tJ3xkeZ4cPgcktv98SeRvqEXYOuiLRiBMgxGDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6cb4d201c3c5e5f07525404ce716af300e738cb6f6e46d11a72fc8cfc85da4a8","last_reissued_at":"2026-07-05T00:52:05.736364Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:52:05.736364Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1904.01627","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":"2026-07-05T00:52:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FT2NpwtjQVKfL4a4xywGVyr/xQ6kyEF5emQuK8WJafIMzzFmdMpsdNXlkQZ65DWhQ/jvy+68QZ4pTFTQORALDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:19:38.986465Z"},"content_sha256":"6eb0342c9dae6b69cf7d8e2e53413ec927140c9484ee63d12ef9f3116caf799a","schema_version":"1.0","event_id":"sha256:6eb0342c9dae6b69cf7d8e2e53413ec927140c9484ee63d12ef9f3116caf799a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:NS2NEAODYXS7A5JFIBGOOFVPGA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Channel Static Antennas","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.app-ph"],"primary_cat":"eess.SP","authors_text":"Gerald Artner","submitted_at":"2019-03-29T16:28:46Z","abstract_excerpt":"The possibility to keep wireless communication channels static is investigated. When an antenna is moved away from its position, this will in general cause the channel to change. Considerations suggest that wireless communication channels can be kept static by performing a counter-movement of the antenna to keep it in its original position relative to outside observers. Feasibility is shown for a platform moving in straight motion over a finite distance. The channel is kept static by countering the platform's movement with physical movement of the antenna in the opposite direction. The experim"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.01627","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/1904.01627/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":"2026-07-05T00:52:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HqGO10Td9DqViZ079f03a2Bf19JQQp+apWHDw4sdJF88z3Tzu2m14M9dmCtC3uypPvJhxkCedomKHvD5ZBIjAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:19:38.987042Z"},"content_sha256":"cdf0dbefb613f508f400ccc9d1af7ad961ec71fc4f217d146186a830b2e356db","schema_version":"1.0","event_id":"sha256:cdf0dbefb613f508f400ccc9d1af7ad961ec71fc4f217d146186a830b2e356db"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NS2NEAODYXS7A5JFIBGOOFVPGA/bundle.json","state_url":"https://pith.science/pith/NS2NEAODYXS7A5JFIBGOOFVPGA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NS2NEAODYXS7A5JFIBGOOFVPGA/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":"2026-08-03T16:19:38Z","links":{"resolver":"https://pith.science/pith/NS2NEAODYXS7A5JFIBGOOFVPGA","bundle":"https://pith.science/pith/NS2NEAODYXS7A5JFIBGOOFVPGA/bundle.json","state":"https://pith.science/pith/NS2NEAODYXS7A5JFIBGOOFVPGA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NS2NEAODYXS7A5JFIBGOOFVPGA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:NS2NEAODYXS7A5JFIBGOOFVPGA","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":"e5be11641460f9558394f7fb5157ca0a3bd84261097e384a91a3263216ac4778","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-03-29T16:28:46Z","title_canon_sha256":"c6af513193aa9eb2a740c166feb317080f88cc2f08b3f9f90299142b54c2cdc0"},"schema_version":"1.0","source":{"id":"1904.01627","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.01627","created_at":"2026-07-05T00:52:05Z"},{"alias_kind":"arxiv_version","alias_value":"1904.01627v1","created_at":"2026-07-05T00:52:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.01627","created_at":"2026-07-05T00:52:05Z"},{"alias_kind":"pith_short_12","alias_value":"NS2NEAODYXS7","created_at":"2026-07-05T00:52:05Z"},{"alias_kind":"pith_short_16","alias_value":"NS2NEAODYXS7A5JF","created_at":"2026-07-05T00:52:05Z"},{"alias_kind":"pith_short_8","alias_value":"NS2NEAOD","created_at":"2026-07-05T00:52:05Z"}],"graph_snapshots":[{"event_id":"sha256:cdf0dbefb613f508f400ccc9d1af7ad961ec71fc4f217d146186a830b2e356db","target":"graph","created_at":"2026-07-05T00:52:05Z","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/1904.01627/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The possibility to keep wireless communication channels static is investigated. When an antenna is moved away from its position, this will in general cause the channel to change. Considerations suggest that wireless communication channels can be kept static by performing a counter-movement of the antenna to keep it in its original position relative to outside observers. Feasibility is shown for a platform moving in straight motion over a finite distance. The channel is kept static by countering the platform's movement with physical movement of the antenna in the opposite direction. The experim","authors_text":"Gerald Artner","cross_cats":["physics.app-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-03-29T16:28:46Z","title":"Channel Static Antennas"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.01627","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":"sha256:6eb0342c9dae6b69cf7d8e2e53413ec927140c9484ee63d12ef9f3116caf799a","target":"record","created_at":"2026-07-05T00:52:05Z","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":"e5be11641460f9558394f7fb5157ca0a3bd84261097e384a91a3263216ac4778","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-03-29T16:28:46Z","title_canon_sha256":"c6af513193aa9eb2a740c166feb317080f88cc2f08b3f9f90299142b54c2cdc0"},"schema_version":"1.0","source":{"id":"1904.01627","kind":"arxiv","version":1}},"canonical_sha256":"6cb4d201c3c5e5f07525404ce716af300e738cb6f6e46d11a72fc8cfc85da4a8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6cb4d201c3c5e5f07525404ce716af300e738cb6f6e46d11a72fc8cfc85da4a8","first_computed_at":"2026-07-05T00:52:05.736364Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:52:05.736364Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8GUxU0llO+o0svAnojTwYpnAYS7tdQ2OLj60g1Mz05HotYV9tJ3xkeZ4cPgcktv98SeRvqEXYOuiLRiBMgxGDw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:52:05.736790Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.01627","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6eb0342c9dae6b69cf7d8e2e53413ec927140c9484ee63d12ef9f3116caf799a","sha256:cdf0dbefb613f508f400ccc9d1af7ad961ec71fc4f217d146186a830b2e356db"],"state_sha256":"93b6c6e6d65f4bdc4f27d3633844b346c70d59a1a39fa7862c522b61a61d89f3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QZkJYImfjHB0zjCy/TDlg6sH2tfU+OWriKmBLlSKhzOLtekMal2W9+hjJRACwp0umylapcNUA4prjDtFG+cIBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T16:19:38.992602Z","bundle_sha256":"f00c7d85dfea218de7609af3d86ee657e9b3a456a096a2ea7c94fe95ef18dc33"}}