{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:TL5VXIDBAYVZE3FUDS7V46IGY6","short_pith_number":"pith:TL5VXIDB","canonical_record":{"source":{"id":"2205.03941","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2022-05-08T19:27:35Z","cross_cats_sorted":["cond-mat.supr-con","cs.SY","eess.SY"],"title_canon_sha256":"7b80cc51f0ea6aea484cf73744b5bd4ada52ce2c9ef669ca590856d0feb6fa93","abstract_canon_sha256":"fe3a1b5c6d8f7dcc49a901686e164ddd0d0d4d7ced1f5cd4fdb5122aa4db7ed7"},"schema_version":"1.0"},"canonical_sha256":"9afb5ba061062b926cb41cbf5e7906c7a1b82f9699cdeb078b8e52fca9bac410","source":{"kind":"arxiv","id":"2205.03941","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.03941","created_at":"2026-07-05T06:32:22Z"},{"alias_kind":"arxiv_version","alias_value":"2205.03941v1","created_at":"2026-07-05T06:32:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.03941","created_at":"2026-07-05T06:32:22Z"},{"alias_kind":"pith_short_12","alias_value":"TL5VXIDBAYVZ","created_at":"2026-07-05T06:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"TL5VXIDBAYVZE3FU","created_at":"2026-07-05T06:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"TL5VXIDB","created_at":"2026-07-05T06:32:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:TL5VXIDBAYVZE3FUDS7V46IGY6","target":"record","payload":{"canonical_record":{"source":{"id":"2205.03941","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2022-05-08T19:27:35Z","cross_cats_sorted":["cond-mat.supr-con","cs.SY","eess.SY"],"title_canon_sha256":"7b80cc51f0ea6aea484cf73744b5bd4ada52ce2c9ef669ca590856d0feb6fa93","abstract_canon_sha256":"fe3a1b5c6d8f7dcc49a901686e164ddd0d0d4d7ced1f5cd4fdb5122aa4db7ed7"},"schema_version":"1.0"},"canonical_sha256":"9afb5ba061062b926cb41cbf5e7906c7a1b82f9699cdeb078b8e52fca9bac410","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:32:22.596854Z","signature_b64":"+jrX7Scq4TR45XXREDyKHex+74MIQgpyutFp7wbMC0nw7uBBS6nYlpMJ2mI1wvLgo7QLRP12mzPwA3V0bMwsBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9afb5ba061062b926cb41cbf5e7906c7a1b82f9699cdeb078b8e52fca9bac410","last_reissued_at":"2026-07-05T06:32:22.596395Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:32:22.596395Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2205.03941","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":"2026-07-05T06:32:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eCjOXzBAt5ISaFSPyypXpEGuduz8mu+k7n+tiSbpouSuLbt72QAp1NG1XEcjx5E07hrIAGjCWKMdU6qGPgKjAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T20:19:52.603654Z"},"content_sha256":"7971d6ae2d4d9cda7c2d1700196b21e59afb009a0aeeab231309366487ba83e7","schema_version":"1.0","event_id":"sha256:7971d6ae2d4d9cda7c2d1700196b21e59afb009a0aeeab231309366487ba83e7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:TL5VXIDBAYVZE3FUDS7V46IGY6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Low-pass filter with ultra-wide stopband for quantum computing applications","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["cond-mat.supr-con","cs.SY","eess.SY"],"primary_cat":"quant-ph","authors_text":"Robert Rehammar, Simone Gasparinetti","submitted_at":"2022-05-08T19:27:35Z","abstract_excerpt":"A new type of low-pass filter based on a leaky coaxial waveguide is presented. The filter has minimal insertion loss in the pass band, while at the same time high attenuation in the stop band is achieved. Thanks to its arrangement, the filter does not present parasitic leakage paths, so that, unlike conventional resonant filters, the stop band extends to very high frequencies. It is shown that a particular stop-band attenuation can be obtained by adding or removing leaking sections. Coupling between the center coaxial structure and the leaking holes is investigated. A prototype is manufactured"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.03941","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/2205.03941/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":"2026-07-05T06:32:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wMvgdJVSxI7f9BP2y/7DnU5vZKXDLnUmCEabltYiU+RTiF6nyY1lDQyEBl4577HE78eLj9DOm1XgiD5R74REDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T20:19:52.604239Z"},"content_sha256":"dc7a516f254c57ff5dc2200fbd857a00eadc56dee4c271b08f7449626a65c33c","schema_version":"1.0","event_id":"sha256:dc7a516f254c57ff5dc2200fbd857a00eadc56dee4c271b08f7449626a65c33c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TL5VXIDBAYVZE3FUDS7V46IGY6/bundle.json","state_url":"https://pith.science/pith/TL5VXIDBAYVZE3FUDS7V46IGY6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TL5VXIDBAYVZE3FUDS7V46IGY6/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":"2026-08-22T20:19:52Z","links":{"resolver":"https://pith.science/pith/TL5VXIDBAYVZE3FUDS7V46IGY6","bundle":"https://pith.science/pith/TL5VXIDBAYVZE3FUDS7V46IGY6/bundle.json","state":"https://pith.science/pith/TL5VXIDBAYVZE3FUDS7V46IGY6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TL5VXIDBAYVZE3FUDS7V46IGY6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:TL5VXIDBAYVZE3FUDS7V46IGY6","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":"fe3a1b5c6d8f7dcc49a901686e164ddd0d0d4d7ced1f5cd4fdb5122aa4db7ed7","cross_cats_sorted":["cond-mat.supr-con","cs.SY","eess.SY"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2022-05-08T19:27:35Z","title_canon_sha256":"7b80cc51f0ea6aea484cf73744b5bd4ada52ce2c9ef669ca590856d0feb6fa93"},"schema_version":"1.0","source":{"id":"2205.03941","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.03941","created_at":"2026-07-05T06:32:22Z"},{"alias_kind":"arxiv_version","alias_value":"2205.03941v1","created_at":"2026-07-05T06:32:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.03941","created_at":"2026-07-05T06:32:22Z"},{"alias_kind":"pith_short_12","alias_value":"TL5VXIDBAYVZ","created_at":"2026-07-05T06:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"TL5VXIDBAYVZE3FU","created_at":"2026-07-05T06:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"TL5VXIDB","created_at":"2026-07-05T06:32:22Z"}],"graph_snapshots":[{"event_id":"sha256:dc7a516f254c57ff5dc2200fbd857a00eadc56dee4c271b08f7449626a65c33c","target":"graph","created_at":"2026-07-05T06:32:22Z","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/2205.03941/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A new type of low-pass filter based on a leaky coaxial waveguide is presented. The filter has minimal insertion loss in the pass band, while at the same time high attenuation in the stop band is achieved. Thanks to its arrangement, the filter does not present parasitic leakage paths, so that, unlike conventional resonant filters, the stop band extends to very high frequencies. It is shown that a particular stop-band attenuation can be obtained by adding or removing leaking sections. Coupling between the center coaxial structure and the leaking holes is investigated. A prototype is manufactured","authors_text":"Robert Rehammar, Simone Gasparinetti","cross_cats":["cond-mat.supr-con","cs.SY","eess.SY"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2022-05-08T19:27:35Z","title":"Low-pass filter with ultra-wide stopband for quantum computing applications"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.03941","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":"sha256:7971d6ae2d4d9cda7c2d1700196b21e59afb009a0aeeab231309366487ba83e7","target":"record","created_at":"2026-07-05T06:32:22Z","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":"fe3a1b5c6d8f7dcc49a901686e164ddd0d0d4d7ced1f5cd4fdb5122aa4db7ed7","cross_cats_sorted":["cond-mat.supr-con","cs.SY","eess.SY"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2022-05-08T19:27:35Z","title_canon_sha256":"7b80cc51f0ea6aea484cf73744b5bd4ada52ce2c9ef669ca590856d0feb6fa93"},"schema_version":"1.0","source":{"id":"2205.03941","kind":"arxiv","version":1}},"canonical_sha256":"9afb5ba061062b926cb41cbf5e7906c7a1b82f9699cdeb078b8e52fca9bac410","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9afb5ba061062b926cb41cbf5e7906c7a1b82f9699cdeb078b8e52fca9bac410","first_computed_at":"2026-07-05T06:32:22.596395Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:32:22.596395Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+jrX7Scq4TR45XXREDyKHex+74MIQgpyutFp7wbMC0nw7uBBS6nYlpMJ2mI1wvLgo7QLRP12mzPwA3V0bMwsBw==","signature_status":"signed_v1","signed_at":"2026-07-05T06:32:22.596854Z","signed_message":"canonical_sha256_bytes"},"source_id":"2205.03941","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7971d6ae2d4d9cda7c2d1700196b21e59afb009a0aeeab231309366487ba83e7","sha256:dc7a516f254c57ff5dc2200fbd857a00eadc56dee4c271b08f7449626a65c33c"],"state_sha256":"f29070438594416066129888603671419431fcc0f8ff2d938682baa7d4570e36"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oN2zVtiBJUhuS3lbquZm+2UakYGezAHDB2ixm8Bw1R9CTy4qN/N1ERXbFRCwaWXU1MO6KZa9wk+B9dPrizitCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-22T20:19:52.609096Z","bundle_sha256":"843b4c92f07c06da6e5cadde55a16b0e03610b0864730f58e234ce190813147f"}}