{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:V32S7KKJPZHHIHO74XU2F2V3OR","short_pith_number":"pith:V32S7KKJ","canonical_record":{"source":{"id":"1501.03709","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2015-01-15T15:07:44Z","cross_cats_sorted":[],"title_canon_sha256":"ea981a2d643603e53db438c0b4f709c6d2f9e762db32cd0bf146370678f3e99a","abstract_canon_sha256":"b7d10c9377932b4fc382d0c0158355e483eae7424e8f8d88d8f653b651b1ee26"},"schema_version":"1.0"},"canonical_sha256":"aef52fa9497e4e741ddfe5e9a2eabb747e531c0990d6b1ec08809374dca35969","source":{"kind":"arxiv","id":"1501.03709","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.03709","created_at":"2026-05-18T02:17:11Z"},{"alias_kind":"arxiv_version","alias_value":"1501.03709v3","created_at":"2026-05-18T02:17:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.03709","created_at":"2026-05-18T02:17:11Z"},{"alias_kind":"pith_short_12","alias_value":"V32S7KKJPZHH","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"V32S7KKJPZHHIHO7","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"V32S7KKJ","created_at":"2026-05-18T12:29:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:V32S7KKJPZHHIHO74XU2F2V3OR","target":"record","payload":{"canonical_record":{"source":{"id":"1501.03709","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2015-01-15T15:07:44Z","cross_cats_sorted":[],"title_canon_sha256":"ea981a2d643603e53db438c0b4f709c6d2f9e762db32cd0bf146370678f3e99a","abstract_canon_sha256":"b7d10c9377932b4fc382d0c0158355e483eae7424e8f8d88d8f653b651b1ee26"},"schema_version":"1.0"},"canonical_sha256":"aef52fa9497e4e741ddfe5e9a2eabb747e531c0990d6b1ec08809374dca35969","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:17:11.332392Z","signature_b64":"rqGXxVOv7knykrC1jtMFsW7zs4qedDFbcHVQQ7mtL2g5u6PyTzbUHQBhkOGQGbRX+KFamg4eV58TdCDAC5HSBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aef52fa9497e4e741ddfe5e9a2eabb747e531c0990d6b1ec08809374dca35969","last_reissued_at":"2026-05-18T02:17:11.331646Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:17:11.331646Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1501.03709","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:17:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GqToYVaMciigKvStqeMEINd2zj++6Ax7lTos7nULWAD/56JO08GB+dbXKVZXiaAjQamCGj1COcvG28DC//L7Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T02:32:06.527003Z"},"content_sha256":"3127024df74a7f621fba0f83a30d66605ba2ece1f6de0df1294361ca3569c808","schema_version":"1.0","event_id":"sha256:3127024df74a7f621fba0f83a30d66605ba2ece1f6de0df1294361ca3569c808"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:V32S7KKJPZHHIHO74XU2F2V3OR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Phase locking a clock oscillator to a coherent atomic ensemble","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.atom-ph","authors_text":"A. Aspect, A. Bertoldi, A. Landragin, E. Cantin, P. Bouyer, R. Kohlhaas","submitted_at":"2015-01-15T15:07:44Z","abstract_excerpt":"The sensitivity of an atomic interferometer increases when the phase evolution of its quantum superposition state is measured over a longer interrogation interval. In practice, a limit is set by the measurement process, which returns not the phase, but its projection in terms of population difference on two energetic levels. The phase interval over which the relation can be inverted is thus limited to the interval $[-\\pi/2,\\pi/2]$; going beyond it introduces an ambiguity in the read out, hence a sensitivity loss. Here, we extend the unambiguous interval to probe the phase evolution of an atomi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.03709","kind":"arxiv","version":3},"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":"2026-05-18T02:17:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H/m0Xga9g8akV2ANUIzeBuAM2O2mRZvV5xR/hSs6ANxhh3QixWqc3sLGN4PvfU3nzkkKH77l83V39yB64L9OAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T02:32:06.527361Z"},"content_sha256":"ca534a52f39e720fbae185a3f961609aeafb3e9d1cc56b0eafccc861654f9488","schema_version":"1.0","event_id":"sha256:ca534a52f39e720fbae185a3f961609aeafb3e9d1cc56b0eafccc861654f9488"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/V32S7KKJPZHHIHO74XU2F2V3OR/bundle.json","state_url":"https://pith.science/pith/V32S7KKJPZHHIHO74XU2F2V3OR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/V32S7KKJPZHHIHO74XU2F2V3OR/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":"2026-05-28T02:32:06Z","links":{"resolver":"https://pith.science/pith/V32S7KKJPZHHIHO74XU2F2V3OR","bundle":"https://pith.science/pith/V32S7KKJPZHHIHO74XU2F2V3OR/bundle.json","state":"https://pith.science/pith/V32S7KKJPZHHIHO74XU2F2V3OR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/V32S7KKJPZHHIHO74XU2F2V3OR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:V32S7KKJPZHHIHO74XU2F2V3OR","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":"b7d10c9377932b4fc382d0c0158355e483eae7424e8f8d88d8f653b651b1ee26","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2015-01-15T15:07:44Z","title_canon_sha256":"ea981a2d643603e53db438c0b4f709c6d2f9e762db32cd0bf146370678f3e99a"},"schema_version":"1.0","source":{"id":"1501.03709","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.03709","created_at":"2026-05-18T02:17:11Z"},{"alias_kind":"arxiv_version","alias_value":"1501.03709v3","created_at":"2026-05-18T02:17:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.03709","created_at":"2026-05-18T02:17:11Z"},{"alias_kind":"pith_short_12","alias_value":"V32S7KKJPZHH","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"V32S7KKJPZHHIHO7","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"V32S7KKJ","created_at":"2026-05-18T12:29:44Z"}],"graph_snapshots":[{"event_id":"sha256:ca534a52f39e720fbae185a3f961609aeafb3e9d1cc56b0eafccc861654f9488","target":"graph","created_at":"2026-05-18T02:17:11Z","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":"The sensitivity of an atomic interferometer increases when the phase evolution of its quantum superposition state is measured over a longer interrogation interval. In practice, a limit is set by the measurement process, which returns not the phase, but its projection in terms of population difference on two energetic levels. The phase interval over which the relation can be inverted is thus limited to the interval $[-\\pi/2,\\pi/2]$; going beyond it introduces an ambiguity in the read out, hence a sensitivity loss. Here, we extend the unambiguous interval to probe the phase evolution of an atomi","authors_text":"A. Aspect, A. Bertoldi, A. Landragin, E. Cantin, P. Bouyer, R. Kohlhaas","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2015-01-15T15:07:44Z","title":"Phase locking a clock oscillator to a coherent atomic ensemble"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.03709","kind":"arxiv","version":3},"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":"sha256:3127024df74a7f621fba0f83a30d66605ba2ece1f6de0df1294361ca3569c808","target":"record","created_at":"2026-05-18T02:17:11Z","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":"b7d10c9377932b4fc382d0c0158355e483eae7424e8f8d88d8f653b651b1ee26","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2015-01-15T15:07:44Z","title_canon_sha256":"ea981a2d643603e53db438c0b4f709c6d2f9e762db32cd0bf146370678f3e99a"},"schema_version":"1.0","source":{"id":"1501.03709","kind":"arxiv","version":3}},"canonical_sha256":"aef52fa9497e4e741ddfe5e9a2eabb747e531c0990d6b1ec08809374dca35969","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aef52fa9497e4e741ddfe5e9a2eabb747e531c0990d6b1ec08809374dca35969","first_computed_at":"2026-05-18T02:17:11.331646Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:17:11.331646Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rqGXxVOv7knykrC1jtMFsW7zs4qedDFbcHVQQ7mtL2g5u6PyTzbUHQBhkOGQGbRX+KFamg4eV58TdCDAC5HSBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:17:11.332392Z","signed_message":"canonical_sha256_bytes"},"source_id":"1501.03709","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3127024df74a7f621fba0f83a30d66605ba2ece1f6de0df1294361ca3569c808","sha256:ca534a52f39e720fbae185a3f961609aeafb3e9d1cc56b0eafccc861654f9488"],"state_sha256":"3ce5f2a1831cb6b41d9a1b634181cda4da4f5900a2cdbcb12b18868fd4022a88"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YY9LhXZxvNYXtWcZvmNdMz0lNnBISozTbBwaTOSmhGSb8bZB3m/WJxnZrILvL1NDgQhvrxNK63JzL/DOORH4Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T02:32:06.529331Z","bundle_sha256":"3fbf06186cfc4c0624e8b2d67c0c5e9e15ccf78e24f2406475ad1a1913172ae9"}}