{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:TLJ6PURP7C3HI2Q3DEXIHOKQDO","short_pith_number":"pith:TLJ6PURP","canonical_record":{"source":{"id":"1810.06217","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-10-15T08:11:30Z","cross_cats_sorted":["cond-mat.supr-con","quant-ph"],"title_canon_sha256":"6337c91be50842ddf0eb185b52d2f9553661f16061834a01b2f7ac842af2870a","abstract_canon_sha256":"699681fc75c9d7bdb1198da198de942ee9ed95d93d0276e5569632506f609e1f"},"schema_version":"1.0"},"canonical_sha256":"9ad3e7d22ff8b6746a1b192e83b9501b9bdc00a0e89cad81ebebf6c540d4954d","source":{"kind":"arxiv","id":"1810.06217","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.06217","created_at":"2026-05-17T23:46:29Z"},{"alias_kind":"arxiv_version","alias_value":"1810.06217v2","created_at":"2026-05-17T23:46:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.06217","created_at":"2026-05-17T23:46:29Z"},{"alias_kind":"pith_short_12","alias_value":"TLJ6PURP7C3H","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"TLJ6PURP7C3HI2Q3","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"TLJ6PURP","created_at":"2026-05-18T12:32:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:TLJ6PURP7C3HI2Q3DEXIHOKQDO","target":"record","payload":{"canonical_record":{"source":{"id":"1810.06217","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-10-15T08:11:30Z","cross_cats_sorted":["cond-mat.supr-con","quant-ph"],"title_canon_sha256":"6337c91be50842ddf0eb185b52d2f9553661f16061834a01b2f7ac842af2870a","abstract_canon_sha256":"699681fc75c9d7bdb1198da198de942ee9ed95d93d0276e5569632506f609e1f"},"schema_version":"1.0"},"canonical_sha256":"9ad3e7d22ff8b6746a1b192e83b9501b9bdc00a0e89cad81ebebf6c540d4954d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:46:29.772267Z","signature_b64":"mppUuPjMCIA33ervOeGVpD98+ols9O5eloRbV+O4cD0QdJR/u8ZzVCgBwsLVWETAjMbaNe+NzgEOTstZgmglBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9ad3e7d22ff8b6746a1b192e83b9501b9bdc00a0e89cad81ebebf6c540d4954d","last_reissued_at":"2026-05-17T23:46:29.771611Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:46:29.771611Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.06217","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":"2026-05-17T23:46:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CBrH5Q7igHcPB4jOMYFsyK9KKptcBp+X7UawxixR4V21S9Ox+glcgyyXKYPLyzYW3mrcud50WlhbyfMQ78RoCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T05:04:13.454815Z"},"content_sha256":"64d555a912c5cdf712af659eb0456ceeb077d91cdfde9469671f212a1d59dc8e","schema_version":"1.0","event_id":"sha256:64d555a912c5cdf712af659eb0456ceeb077d91cdfde9469671f212a1d59dc8e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:TLJ6PURP7C3HI2Q3DEXIHOKQDO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Antibunched photons emitted by a dc biased Josephson junction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.supr-con","quant-ph"],"primary_cat":"cond-mat.mes-hall","authors_text":"A. Peugeot, B. Kubala, C. Altimiras, C. Rolland, D. Esteve, D. Vion, F. Portier, H. le Sueur, J. Ankerhold, M. Westig, P. Joyez, P. Roche, S. Dambach, Y. Mukharsky","submitted_at":"2018-10-15T08:11:30Z","abstract_excerpt":"We show experimentally that a dc biased Josephson junction in series with a high-enough impedance microwave resonator emits antibunched photons. Our resonator is made of a simple micro-fabricated spiral coil that resonates at 4.4 GHz and reaches a 1.97 k$\\Omega$ characteristic impedance. The second order correlation function of the power leaking out of the resonator drops down to 0.3 at zero delay, which demonstrates the antibunching of the photons emitted by the circuit at a rate of 6 $10^7$ photons per second. Results are found in quantitative agreement with our theoretical predictions. This"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.06217","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":""},"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":"2026-05-17T23:46:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"htmLLLRyFLUapT3u1l89QjTAlnTaPZjQEI7Lo7jBJajBE8HMtgSdyYqYilLKMsD31OMVt80CAXOa6q4xriTzAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T05:04:13.455169Z"},"content_sha256":"05d0d2213024e361752a27f5ef52cf88d05dbd98050190aeff4f5f74f0e5480b","schema_version":"1.0","event_id":"sha256:05d0d2213024e361752a27f5ef52cf88d05dbd98050190aeff4f5f74f0e5480b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TLJ6PURP7C3HI2Q3DEXIHOKQDO/bundle.json","state_url":"https://pith.science/pith/TLJ6PURP7C3HI2Q3DEXIHOKQDO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TLJ6PURP7C3HI2Q3DEXIHOKQDO/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":"2026-05-28T05:04:13Z","links":{"resolver":"https://pith.science/pith/TLJ6PURP7C3HI2Q3DEXIHOKQDO","bundle":"https://pith.science/pith/TLJ6PURP7C3HI2Q3DEXIHOKQDO/bundle.json","state":"https://pith.science/pith/TLJ6PURP7C3HI2Q3DEXIHOKQDO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TLJ6PURP7C3HI2Q3DEXIHOKQDO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:TLJ6PURP7C3HI2Q3DEXIHOKQDO","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":"699681fc75c9d7bdb1198da198de942ee9ed95d93d0276e5569632506f609e1f","cross_cats_sorted":["cond-mat.supr-con","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-10-15T08:11:30Z","title_canon_sha256":"6337c91be50842ddf0eb185b52d2f9553661f16061834a01b2f7ac842af2870a"},"schema_version":"1.0","source":{"id":"1810.06217","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.06217","created_at":"2026-05-17T23:46:29Z"},{"alias_kind":"arxiv_version","alias_value":"1810.06217v2","created_at":"2026-05-17T23:46:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.06217","created_at":"2026-05-17T23:46:29Z"},{"alias_kind":"pith_short_12","alias_value":"TLJ6PURP7C3H","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"TLJ6PURP7C3HI2Q3","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"TLJ6PURP","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:05d0d2213024e361752a27f5ef52cf88d05dbd98050190aeff4f5f74f0e5480b","target":"graph","created_at":"2026-05-17T23:46:29Z","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 show experimentally that a dc biased Josephson junction in series with a high-enough impedance microwave resonator emits antibunched photons. Our resonator is made of a simple micro-fabricated spiral coil that resonates at 4.4 GHz and reaches a 1.97 k$\\Omega$ characteristic impedance. The second order correlation function of the power leaking out of the resonator drops down to 0.3 at zero delay, which demonstrates the antibunching of the photons emitted by the circuit at a rate of 6 $10^7$ photons per second. Results are found in quantitative agreement with our theoretical predictions. This","authors_text":"A. Peugeot, B. Kubala, C. Altimiras, C. Rolland, D. Esteve, D. Vion, F. Portier, H. le Sueur, J. Ankerhold, M. Westig, P. Joyez, P. Roche, S. Dambach, Y. Mukharsky","cross_cats":["cond-mat.supr-con","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-10-15T08:11:30Z","title":"Antibunched photons emitted by a dc biased Josephson junction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.06217","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":"sha256:64d555a912c5cdf712af659eb0456ceeb077d91cdfde9469671f212a1d59dc8e","target":"record","created_at":"2026-05-17T23:46:29Z","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":"699681fc75c9d7bdb1198da198de942ee9ed95d93d0276e5569632506f609e1f","cross_cats_sorted":["cond-mat.supr-con","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-10-15T08:11:30Z","title_canon_sha256":"6337c91be50842ddf0eb185b52d2f9553661f16061834a01b2f7ac842af2870a"},"schema_version":"1.0","source":{"id":"1810.06217","kind":"arxiv","version":2}},"canonical_sha256":"9ad3e7d22ff8b6746a1b192e83b9501b9bdc00a0e89cad81ebebf6c540d4954d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9ad3e7d22ff8b6746a1b192e83b9501b9bdc00a0e89cad81ebebf6c540d4954d","first_computed_at":"2026-05-17T23:46:29.771611Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:46:29.771611Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mppUuPjMCIA33ervOeGVpD98+ols9O5eloRbV+O4cD0QdJR/u8ZzVCgBwsLVWETAjMbaNe+NzgEOTstZgmglBw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:46:29.772267Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.06217","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:64d555a912c5cdf712af659eb0456ceeb077d91cdfde9469671f212a1d59dc8e","sha256:05d0d2213024e361752a27f5ef52cf88d05dbd98050190aeff4f5f74f0e5480b"],"state_sha256":"29b9f7589320489009e383e600d1269c9e85dc46be90a1a43ad7ff6621538e15"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uFrWcQfv5LIL0Dj+VsS8FeoiNBo+lAaOorohdj5DgDbmRCH1cFsSYAN9yMu/B1W3QEn7CCojvPUdLbG7kGjkAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T05:04:13.457160Z","bundle_sha256":"aa723e0c6a59b4f7adde72bc8d4e0f76a61ce6ff921f121f9dd5ac12640eb071"}}