{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:I4JF4TZZY23BLDEAZRVU4BOKQ6","short_pith_number":"pith:I4JF4TZZ","canonical_record":{"source":{"id":"1808.05482","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-08-16T13:47:12Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"4a40412a307353ee8d383282b3b14366b32d85924de2c25c161ab68224b818ad","abstract_canon_sha256":"1a810d9a3cec35de3d5710913762cabb65012cb703a7234d6f48af856c52f3fc"},"schema_version":"1.0"},"canonical_sha256":"47125e4f39c6b6158c80cc6b4e05ca878072aa5b59575f7fb4ac7999bcf05d59","source":{"kind":"arxiv","id":"1808.05482","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.05482","created_at":"2026-05-18T00:03:36Z"},{"alias_kind":"arxiv_version","alias_value":"1808.05482v1","created_at":"2026-05-18T00:03:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.05482","created_at":"2026-05-18T00:03:36Z"},{"alias_kind":"pith_short_12","alias_value":"I4JF4TZZY23B","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_16","alias_value":"I4JF4TZZY23BLDEA","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_8","alias_value":"I4JF4TZZ","created_at":"2026-05-18T12:32:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:I4JF4TZZY23BLDEAZRVU4BOKQ6","target":"record","payload":{"canonical_record":{"source":{"id":"1808.05482","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-08-16T13:47:12Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"4a40412a307353ee8d383282b3b14366b32d85924de2c25c161ab68224b818ad","abstract_canon_sha256":"1a810d9a3cec35de3d5710913762cabb65012cb703a7234d6f48af856c52f3fc"},"schema_version":"1.0"},"canonical_sha256":"47125e4f39c6b6158c80cc6b4e05ca878072aa5b59575f7fb4ac7999bcf05d59","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:03:36.589399Z","signature_b64":"EcLMlo6zKeIgelnzHGt3oFJVoj3uFQJXGqayZWVic9N5rBn0HP3yhahfeXL+SonPwREy9rlnRvCSvRLLxqiXCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"47125e4f39c6b6158c80cc6b4e05ca878072aa5b59575f7fb4ac7999bcf05d59","last_reissued_at":"2026-05-18T00:03:36.588660Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:03:36.588660Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.05482","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":"2026-05-18T00:03:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GjTu+Hez8e7OhGJmY6fPC0L46V7cMCg6YoTaqmwuUJLqipVMzZpU5Q1A5woSr66k30MnoY6l3ie4ugV3Rz+IAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T01:34:38.819067Z"},"content_sha256":"049973ab46596c95e042afb486cb47a45ee7e4ba20798a7cbfbe0859ab013500","schema_version":"1.0","event_id":"sha256:049973ab46596c95e042afb486cb47a45ee7e4ba20798a7cbfbe0859ab013500"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:I4JF4TZZY23BLDEAZRVU4BOKQ6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ultrawide-range photon number calibration using a hybrid system combining nano-electromechanics and superconducting circuit quantum electrodynamics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"quant-ph","authors_text":"Achim Marx, Daniel Schwienbacher, Frank Deppe, Friedrich Wulschner, Hans Huebl, Matthias Pernpeintner, Philip Schmidt, Rudolf Gross","submitted_at":"2018-08-16T13:47:12Z","abstract_excerpt":"We present a hybrid system consisting of a superconducting coplanar waveguide resonator coupled to a nanomechanical string and a transmon qubit acting as nonlinear circuit element. We perform spectroscopy for both the transmon qubit and the nanomechanical string. Measuring the ac-Stark shift on the transmon qubit as well as the electromechanically induced absorption on the string allows us to determine the average photon number in the microwave resonator in both the low and high power regimes. In this way, we measure photon numbers that are up to nine orders of magnitude apart. We find a quant"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.05482","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":""},"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":"2026-05-18T00:03:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XeIlpooWxateCk+XsvRxURGaIdEZgzMEjyQxlNOe7Ogn43WQLa8lFm970XKUPUz6YQX1EwDJ6yDgMFnhlXiDAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T01:34:38.819439Z"},"content_sha256":"ddedf5a24655ce0bc4a9501d0c9f641bc8dbc863cedb99426fa22f5a414a6b9d","schema_version":"1.0","event_id":"sha256:ddedf5a24655ce0bc4a9501d0c9f641bc8dbc863cedb99426fa22f5a414a6b9d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/I4JF4TZZY23BLDEAZRVU4BOKQ6/bundle.json","state_url":"https://pith.science/pith/I4JF4TZZY23BLDEAZRVU4BOKQ6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/I4JF4TZZY23BLDEAZRVU4BOKQ6/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":"2026-06-12T01:34:38Z","links":{"resolver":"https://pith.science/pith/I4JF4TZZY23BLDEAZRVU4BOKQ6","bundle":"https://pith.science/pith/I4JF4TZZY23BLDEAZRVU4BOKQ6/bundle.json","state":"https://pith.science/pith/I4JF4TZZY23BLDEAZRVU4BOKQ6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/I4JF4TZZY23BLDEAZRVU4BOKQ6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:I4JF4TZZY23BLDEAZRVU4BOKQ6","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":"1a810d9a3cec35de3d5710913762cabb65012cb703a7234d6f48af856c52f3fc","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-08-16T13:47:12Z","title_canon_sha256":"4a40412a307353ee8d383282b3b14366b32d85924de2c25c161ab68224b818ad"},"schema_version":"1.0","source":{"id":"1808.05482","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.05482","created_at":"2026-05-18T00:03:36Z"},{"alias_kind":"arxiv_version","alias_value":"1808.05482v1","created_at":"2026-05-18T00:03:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.05482","created_at":"2026-05-18T00:03:36Z"},{"alias_kind":"pith_short_12","alias_value":"I4JF4TZZY23B","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_16","alias_value":"I4JF4TZZY23BLDEA","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_8","alias_value":"I4JF4TZZ","created_at":"2026-05-18T12:32:28Z"}],"graph_snapshots":[{"event_id":"sha256:ddedf5a24655ce0bc4a9501d0c9f641bc8dbc863cedb99426fa22f5a414a6b9d","target":"graph","created_at":"2026-05-18T00:03:36Z","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"},"paper":{"abstract_excerpt":"We present a hybrid system consisting of a superconducting coplanar waveguide resonator coupled to a nanomechanical string and a transmon qubit acting as nonlinear circuit element. We perform spectroscopy for both the transmon qubit and the nanomechanical string. Measuring the ac-Stark shift on the transmon qubit as well as the electromechanically induced absorption on the string allows us to determine the average photon number in the microwave resonator in both the low and high power regimes. In this way, we measure photon numbers that are up to nine orders of magnitude apart. We find a quant","authors_text":"Achim Marx, Daniel Schwienbacher, Frank Deppe, Friedrich Wulschner, Hans Huebl, Matthias Pernpeintner, Philip Schmidt, Rudolf Gross","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-08-16T13:47:12Z","title":"Ultrawide-range photon number calibration using a hybrid system combining nano-electromechanics and superconducting circuit quantum electrodynamics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.05482","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":"sha256:049973ab46596c95e042afb486cb47a45ee7e4ba20798a7cbfbe0859ab013500","target":"record","created_at":"2026-05-18T00:03:36Z","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":"1a810d9a3cec35de3d5710913762cabb65012cb703a7234d6f48af856c52f3fc","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-08-16T13:47:12Z","title_canon_sha256":"4a40412a307353ee8d383282b3b14366b32d85924de2c25c161ab68224b818ad"},"schema_version":"1.0","source":{"id":"1808.05482","kind":"arxiv","version":1}},"canonical_sha256":"47125e4f39c6b6158c80cc6b4e05ca878072aa5b59575f7fb4ac7999bcf05d59","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"47125e4f39c6b6158c80cc6b4e05ca878072aa5b59575f7fb4ac7999bcf05d59","first_computed_at":"2026-05-18T00:03:36.588660Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:03:36.588660Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"EcLMlo6zKeIgelnzHGt3oFJVoj3uFQJXGqayZWVic9N5rBn0HP3yhahfeXL+SonPwREy9rlnRvCSvRLLxqiXCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:03:36.589399Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.05482","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:049973ab46596c95e042afb486cb47a45ee7e4ba20798a7cbfbe0859ab013500","sha256:ddedf5a24655ce0bc4a9501d0c9f641bc8dbc863cedb99426fa22f5a414a6b9d"],"state_sha256":"6dfd6863fad9806e278c7de9ec046e68df163cdc9fa1748ea52d229a29dc8453"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oLgnqCbivJ9eC9q82M6xAqo/WM23BC/AhCJZHV8sFAdRVOIEHcjIbpZLMaTD4RDL38OjGcTFp5CmVOaylH3vAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-12T01:34:38.821394Z","bundle_sha256":"4c2df112ced68086ec2137ce5343fe7a35f000462dee90215905a24f9b85bdce"}}