{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:NJNSGMFOZY2BJ7DU37Q6SJASVO","short_pith_number":"pith:NJNSGMFO","canonical_record":{"source":{"id":"1706.02905","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-06-09T11:34:23Z","cross_cats_sorted":[],"title_canon_sha256":"b3bad687f8ba4dfce2e77a52708f2df843afce2d011a6517b6e2ea2a11cb28da","abstract_canon_sha256":"1a391a6f9c5f04d7e83045e2197007916b5514eda2de6792d6dc4832bc193916"},"schema_version":"1.0"},"canonical_sha256":"6a5b2330aece3414fc74dfe1e92412ab856e29f4c1e81c126a3f9b69cf4e237b","source":{"kind":"arxiv","id":"1706.02905","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.02905","created_at":"2026-05-18T00:42:40Z"},{"alias_kind":"arxiv_version","alias_value":"1706.02905v1","created_at":"2026-05-18T00:42:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.02905","created_at":"2026-05-18T00:42:40Z"},{"alias_kind":"pith_short_12","alias_value":"NJNSGMFOZY2B","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"NJNSGMFOZY2BJ7DU","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"NJNSGMFO","created_at":"2026-05-18T12:31:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:NJNSGMFOZY2BJ7DU37Q6SJASVO","target":"record","payload":{"canonical_record":{"source":{"id":"1706.02905","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-06-09T11:34:23Z","cross_cats_sorted":[],"title_canon_sha256":"b3bad687f8ba4dfce2e77a52708f2df843afce2d011a6517b6e2ea2a11cb28da","abstract_canon_sha256":"1a391a6f9c5f04d7e83045e2197007916b5514eda2de6792d6dc4832bc193916"},"schema_version":"1.0"},"canonical_sha256":"6a5b2330aece3414fc74dfe1e92412ab856e29f4c1e81c126a3f9b69cf4e237b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:42:40.616477Z","signature_b64":"oSy7zJ/wB+//keiKEbx3ZVs8Jgmrw9rVvH0x56QJcnoipQirr0mUJiqwWOSuRXns+22ihhI1L8VHXACuqJAlDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6a5b2330aece3414fc74dfe1e92412ab856e29f4c1e81c126a3f9b69cf4e237b","last_reissued_at":"2026-05-18T00:42:40.615780Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:42:40.615780Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1706.02905","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":"2026-05-18T00:42:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mzgheaw8fU+iRARwfrx8sCYz8FDivn7IOVt2oRerm5hEsDst63T+J5IjEBmBfSyJJQvvVBX5vv4iEklgod6WDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T03:42:58.084127Z"},"content_sha256":"0d9a2e41cc6799159896623a625ab136226078a2f4cc456b8bc83609c3490568","schema_version":"1.0","event_id":"sha256:0d9a2e41cc6799159896623a625ab136226078a2f4cc456b8bc83609c3490568"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:NJNSGMFOZY2BJ7DU37Q6SJASVO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Precise determination of the isotope shift of ${}^{88}$Sr - ${}^{87}$Sr optical lattice clock by sharing perturbations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.atom-ph","authors_text":"Hidetoshi Katori, Ray Mizushima, Tetsushi Takano","submitted_at":"2017-06-09T11:34:23Z","abstract_excerpt":"We report on the isotope shift between ${}^{88}$Sr and ${}^{87}$Sr on the ${}^1S_0 - {}^3P_0$ clock transitions. The interleaved operation of an optical lattice clock with two isotopes allows the canceling out of common perturbations, such as the quadratic Zeeman shift, the clock-light shift, and the blackbody radiation shift. The isotope shift is determined to be 62 188 134.004(10) Hz, where the major uncertainty is introduced by the collisional shift that is distinct for each isotope. Our result allows us to determine the frequency of $^{88}$Sr-$^{87}$Sr optical lattice clocks with a fractio"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.02905","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":"2026-05-18T00:42:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E05/QsLvttS1EhHnm77Lr97VKUTwqRjN9p2jieQdRyuIGHmq91goQ76Nv0VUPKF8IiITiwLW2oyIdFEdl87vCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T03:42:58.084819Z"},"content_sha256":"677dde35b3dc618032f486cb45611030e954b78245d693569b092077015035bc","schema_version":"1.0","event_id":"sha256:677dde35b3dc618032f486cb45611030e954b78245d693569b092077015035bc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NJNSGMFOZY2BJ7DU37Q6SJASVO/bundle.json","state_url":"https://pith.science/pith/NJNSGMFOZY2BJ7DU37Q6SJASVO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NJNSGMFOZY2BJ7DU37Q6SJASVO/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":"2026-06-07T03:42:58Z","links":{"resolver":"https://pith.science/pith/NJNSGMFOZY2BJ7DU37Q6SJASVO","bundle":"https://pith.science/pith/NJNSGMFOZY2BJ7DU37Q6SJASVO/bundle.json","state":"https://pith.science/pith/NJNSGMFOZY2BJ7DU37Q6SJASVO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NJNSGMFOZY2BJ7DU37Q6SJASVO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:NJNSGMFOZY2BJ7DU37Q6SJASVO","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":"1a391a6f9c5f04d7e83045e2197007916b5514eda2de6792d6dc4832bc193916","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-06-09T11:34:23Z","title_canon_sha256":"b3bad687f8ba4dfce2e77a52708f2df843afce2d011a6517b6e2ea2a11cb28da"},"schema_version":"1.0","source":{"id":"1706.02905","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.02905","created_at":"2026-05-18T00:42:40Z"},{"alias_kind":"arxiv_version","alias_value":"1706.02905v1","created_at":"2026-05-18T00:42:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.02905","created_at":"2026-05-18T00:42:40Z"},{"alias_kind":"pith_short_12","alias_value":"NJNSGMFOZY2B","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"NJNSGMFOZY2BJ7DU","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"NJNSGMFO","created_at":"2026-05-18T12:31:31Z"}],"graph_snapshots":[{"event_id":"sha256:677dde35b3dc618032f486cb45611030e954b78245d693569b092077015035bc","target":"graph","created_at":"2026-05-18T00:42:40Z","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 report on the isotope shift between ${}^{88}$Sr and ${}^{87}$Sr on the ${}^1S_0 - {}^3P_0$ clock transitions. The interleaved operation of an optical lattice clock with two isotopes allows the canceling out of common perturbations, such as the quadratic Zeeman shift, the clock-light shift, and the blackbody radiation shift. The isotope shift is determined to be 62 188 134.004(10) Hz, where the major uncertainty is introduced by the collisional shift that is distinct for each isotope. Our result allows us to determine the frequency of $^{88}$Sr-$^{87}$Sr optical lattice clocks with a fractio","authors_text":"Hidetoshi Katori, Ray Mizushima, Tetsushi Takano","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-06-09T11:34:23Z","title":"Precise determination of the isotope shift of ${}^{88}$Sr - ${}^{87}$Sr optical lattice clock by sharing perturbations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.02905","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":"sha256:0d9a2e41cc6799159896623a625ab136226078a2f4cc456b8bc83609c3490568","target":"record","created_at":"2026-05-18T00:42:40Z","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":"1a391a6f9c5f04d7e83045e2197007916b5514eda2de6792d6dc4832bc193916","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-06-09T11:34:23Z","title_canon_sha256":"b3bad687f8ba4dfce2e77a52708f2df843afce2d011a6517b6e2ea2a11cb28da"},"schema_version":"1.0","source":{"id":"1706.02905","kind":"arxiv","version":1}},"canonical_sha256":"6a5b2330aece3414fc74dfe1e92412ab856e29f4c1e81c126a3f9b69cf4e237b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6a5b2330aece3414fc74dfe1e92412ab856e29f4c1e81c126a3f9b69cf4e237b","first_computed_at":"2026-05-18T00:42:40.615780Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:42:40.615780Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oSy7zJ/wB+//keiKEbx3ZVs8Jgmrw9rVvH0x56QJcnoipQirr0mUJiqwWOSuRXns+22ihhI1L8VHXACuqJAlDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:42:40.616477Z","signed_message":"canonical_sha256_bytes"},"source_id":"1706.02905","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0d9a2e41cc6799159896623a625ab136226078a2f4cc456b8bc83609c3490568","sha256:677dde35b3dc618032f486cb45611030e954b78245d693569b092077015035bc"],"state_sha256":"7f47db48890ce4b048883a870945d932d436c4d7024050d2e9a030856e6dfac1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I6QleU69fh2NDs2uebCdPde3zIYSSeI8kpiEkqk6WfH7cjYinMqAN+ow5wVdxpcy+rpN/4xY9aUWr5eyy5XrDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T03:42:58.088679Z","bundle_sha256":"e3cb1a72f21620e76f91199af32503a35eb92e66d3d905936b3ce63d2b27545c"}}