{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:U6VGNXAZCYC2IAUUMQMQQYYYTD","short_pith_number":"pith:U6VGNXAZ","canonical_record":{"source":{"id":"2512.08393","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-12-09T09:22:01Z","cross_cats_sorted":[],"title_canon_sha256":"8af92f1f3a7e5b4ea3ae77af2aea4cb0e794ca0e800fff4de8a1a81fd8eb87b1","abstract_canon_sha256":"ef8b6a7272551f068682434ddc0276016ced0262b5d2fd0549717221c705546c"},"schema_version":"1.0"},"canonical_sha256":"a7aa66dc191605a40294641908631898ef92dcf247498a5f7a45e8dae44c8a04","source":{"kind":"arxiv","id":"2512.08393","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2512.08393","created_at":"2026-06-19T16:12:16Z"},{"alias_kind":"arxiv_version","alias_value":"2512.08393v2","created_at":"2026-06-19T16:12:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2512.08393","created_at":"2026-06-19T16:12:16Z"},{"alias_kind":"pith_short_12","alias_value":"U6VGNXAZCYC2","created_at":"2026-06-19T16:12:16Z"},{"alias_kind":"pith_short_16","alias_value":"U6VGNXAZCYC2IAUU","created_at":"2026-06-19T16:12:16Z"},{"alias_kind":"pith_short_8","alias_value":"U6VGNXAZ","created_at":"2026-06-19T16:12:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:U6VGNXAZCYC2IAUUMQMQQYYYTD","target":"record","payload":{"canonical_record":{"source":{"id":"2512.08393","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-12-09T09:22:01Z","cross_cats_sorted":[],"title_canon_sha256":"8af92f1f3a7e5b4ea3ae77af2aea4cb0e794ca0e800fff4de8a1a81fd8eb87b1","abstract_canon_sha256":"ef8b6a7272551f068682434ddc0276016ced0262b5d2fd0549717221c705546c"},"schema_version":"1.0"},"canonical_sha256":"a7aa66dc191605a40294641908631898ef92dcf247498a5f7a45e8dae44c8a04","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-19T16:12:16.930402Z","signature_b64":"v9ukHRzkviObKCTrmy4qAkj85d1Q4prwLB4wPJRWtag80ISIM42LgqXk3lN4BY42PcA9o9X6LPnnt3bNLaV3Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a7aa66dc191605a40294641908631898ef92dcf247498a5f7a45e8dae44c8a04","last_reissued_at":"2026-06-19T16:12:16.929990Z","signature_status":"signed_v1","first_computed_at":"2026-06-19T16:12:16.929990Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2512.08393","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-19T16:12:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3a5v0rxceJ0hbx//ExIWrP1tR0jrFaUkWUFWlTzCrk/q2oQBIOAWLKNkM6JwrPD43fMgEo+ekiS0Ed49zduuDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-19T21:55:42.905934Z"},"content_sha256":"851cdd325f6453b042dae48f3368ae1c7ec80715eae2a3c5cb628faf52f66481","schema_version":"1.0","event_id":"sha256:851cdd325f6453b042dae48f3368ae1c7ec80715eae2a3c5cb628faf52f66481"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:U6VGNXAZCYC2IAUUMQMQQYYYTD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Single-Step Phase-Engineered Pulse for Active Readout Cavity Reset in Superconducting Circuits","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Guo-Ping Guo, Hai-Feng Zhang, Peng Duan, Peng Wang, Ren-Ze Zhao, Sheng-Ri Liu, Sheng Zhang, Tian-Le Wang, Xiao-Yan Yang, Yuan Wu, Ze-An Zhao, Zhi-Fei Li","submitted_at":"2025-12-09T09:22:01Z","abstract_excerpt":"In a circuit QED architecture, we experimentally demonstrate a hardware-efficient and qubit-state-dependent Single-Step Phase-Engineered (SSPE) pulse scheme for actively depopulating a readout cavity. The protocol appends a reset segment with tailored amplitude and phase to a standard square readout pulse. Within the linear-response regime, the optimal reset amplitude scales proportionally with the readout amplitude, while the optimal reset phase remains invariant, significantly simplifying the experimental calibration procedure. Time-resolved measurements of the cavity photon number dynamics "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2512.08393","kind":"arxiv","version":2},"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/2512.08393/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":"2026-06-19T16:12:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+M8C9kwem1DPfE8NR07pdM6Rw86wvBVliabe34czhRzADFNG3I2XMeC5M9a5SzYyWMiIoO2LeKh2nTCv1JE0DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-19T21:55:42.906310Z"},"content_sha256":"ae1ceb3917e767b4312a78227cfce34546ac085a23fc84c15ca0890c55944d4c","schema_version":"1.0","event_id":"sha256:ae1ceb3917e767b4312a78227cfce34546ac085a23fc84c15ca0890c55944d4c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/U6VGNXAZCYC2IAUUMQMQQYYYTD/bundle.json","state_url":"https://pith.science/pith/U6VGNXAZCYC2IAUUMQMQQYYYTD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/U6VGNXAZCYC2IAUUMQMQQYYYTD/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":"2026-06-19T21:55:42Z","links":{"resolver":"https://pith.science/pith/U6VGNXAZCYC2IAUUMQMQQYYYTD","bundle":"https://pith.science/pith/U6VGNXAZCYC2IAUUMQMQQYYYTD/bundle.json","state":"https://pith.science/pith/U6VGNXAZCYC2IAUUMQMQQYYYTD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/U6VGNXAZCYC2IAUUMQMQQYYYTD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:U6VGNXAZCYC2IAUUMQMQQYYYTD","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":"ef8b6a7272551f068682434ddc0276016ced0262b5d2fd0549717221c705546c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-12-09T09:22:01Z","title_canon_sha256":"8af92f1f3a7e5b4ea3ae77af2aea4cb0e794ca0e800fff4de8a1a81fd8eb87b1"},"schema_version":"1.0","source":{"id":"2512.08393","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2512.08393","created_at":"2026-06-19T16:12:16Z"},{"alias_kind":"arxiv_version","alias_value":"2512.08393v2","created_at":"2026-06-19T16:12:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2512.08393","created_at":"2026-06-19T16:12:16Z"},{"alias_kind":"pith_short_12","alias_value":"U6VGNXAZCYC2","created_at":"2026-06-19T16:12:16Z"},{"alias_kind":"pith_short_16","alias_value":"U6VGNXAZCYC2IAUU","created_at":"2026-06-19T16:12:16Z"},{"alias_kind":"pith_short_8","alias_value":"U6VGNXAZ","created_at":"2026-06-19T16:12:16Z"}],"graph_snapshots":[{"event_id":"sha256:ae1ceb3917e767b4312a78227cfce34546ac085a23fc84c15ca0890c55944d4c","target":"graph","created_at":"2026-06-19T16:12:16Z","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/2512.08393/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In a circuit QED architecture, we experimentally demonstrate a hardware-efficient and qubit-state-dependent Single-Step Phase-Engineered (SSPE) pulse scheme for actively depopulating a readout cavity. The protocol appends a reset segment with tailored amplitude and phase to a standard square readout pulse. Within the linear-response regime, the optimal reset amplitude scales proportionally with the readout amplitude, while the optimal reset phase remains invariant, significantly simplifying the experimental calibration procedure. Time-resolved measurements of the cavity photon number dynamics ","authors_text":"Guo-Ping Guo, Hai-Feng Zhang, Peng Duan, Peng Wang, Ren-Ze Zhao, Sheng-Ri Liu, Sheng Zhang, Tian-Le Wang, Xiao-Yan Yang, Yuan Wu, Ze-An Zhao, Zhi-Fei Li","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-12-09T09:22:01Z","title":"Single-Step Phase-Engineered Pulse for Active Readout Cavity Reset in Superconducting Circuits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2512.08393","kind":"arxiv","version":2},"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":"sha256:851cdd325f6453b042dae48f3368ae1c7ec80715eae2a3c5cb628faf52f66481","target":"record","created_at":"2026-06-19T16:12:16Z","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":"ef8b6a7272551f068682434ddc0276016ced0262b5d2fd0549717221c705546c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-12-09T09:22:01Z","title_canon_sha256":"8af92f1f3a7e5b4ea3ae77af2aea4cb0e794ca0e800fff4de8a1a81fd8eb87b1"},"schema_version":"1.0","source":{"id":"2512.08393","kind":"arxiv","version":2}},"canonical_sha256":"a7aa66dc191605a40294641908631898ef92dcf247498a5f7a45e8dae44c8a04","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a7aa66dc191605a40294641908631898ef92dcf247498a5f7a45e8dae44c8a04","first_computed_at":"2026-06-19T16:12:16.929990Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-19T16:12:16.929990Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"v9ukHRzkviObKCTrmy4qAkj85d1Q4prwLB4wPJRWtag80ISIM42LgqXk3lN4BY42PcA9o9X6LPnnt3bNLaV3Cw==","signature_status":"signed_v1","signed_at":"2026-06-19T16:12:16.930402Z","signed_message":"canonical_sha256_bytes"},"source_id":"2512.08393","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:851cdd325f6453b042dae48f3368ae1c7ec80715eae2a3c5cb628faf52f66481","sha256:ae1ceb3917e767b4312a78227cfce34546ac085a23fc84c15ca0890c55944d4c"],"state_sha256":"9f57182bbd52b0ff5b93eafc903d4770d80dd1b1a0d83545da669b18efc23a7f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YCLCiieq6YnZ6kQ628KA/7pkgpPHCLD5791Agm/TJkpu25bPgkiO1jHxEEfgE13hCFXPAXXr5Q8A7VmoepsrDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-19T21:55:42.908395Z","bundle_sha256":"9ac6af273cc1f4a02a73bb42ea0db71053ac8f7251dec039a4b1035a06b18b72"}}