{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:E5DJZVKDELUPRUF3AAJ5ZVVINP","short_pith_number":"pith:E5DJZVKD","canonical_record":{"source":{"id":"1810.06626","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2018-10-15T19:26:45Z","cross_cats_sorted":["cond-mat.quant-gas","quant-ph"],"title_canon_sha256":"90bf43f50490ba99906037006418a9e61f9e4ec89f946fecc4cad8417410ff6b","abstract_canon_sha256":"1d9e6520bd28f7f86106e4537a41c026f49e7e599a56277cfda47bce46f5365d"},"schema_version":"1.0"},"canonical_sha256":"27469cd54322e8f8d0bb0013dcd6a86bca18684d6c6f0d701c3f404cc79f2bb7","source":{"kind":"arxiv","id":"1810.06626","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.06626","created_at":"2026-05-17T23:57:08Z"},{"alias_kind":"arxiv_version","alias_value":"1810.06626v1","created_at":"2026-05-17T23:57:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.06626","created_at":"2026-05-17T23:57:08Z"},{"alias_kind":"pith_short_12","alias_value":"E5DJZVKDELUP","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"E5DJZVKDELUPRUF3","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"E5DJZVKD","created_at":"2026-05-18T12:32:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:E5DJZVKDELUPRUF3AAJ5ZVVINP","target":"record","payload":{"canonical_record":{"source":{"id":"1810.06626","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2018-10-15T19:26:45Z","cross_cats_sorted":["cond-mat.quant-gas","quant-ph"],"title_canon_sha256":"90bf43f50490ba99906037006418a9e61f9e4ec89f946fecc4cad8417410ff6b","abstract_canon_sha256":"1d9e6520bd28f7f86106e4537a41c026f49e7e599a56277cfda47bce46f5365d"},"schema_version":"1.0"},"canonical_sha256":"27469cd54322e8f8d0bb0013dcd6a86bca18684d6c6f0d701c3f404cc79f2bb7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:57:08.332701Z","signature_b64":"882sGON0C03ikwq/Vh9Flelwp+A12FtTo9SZ7QFlG1EHWDaONy3xQGYBz0VyOtLQirmJ+KmGEjsof9wzuCyMAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"27469cd54322e8f8d0bb0013dcd6a86bca18684d6c6f0d701c3f404cc79f2bb7","last_reissued_at":"2026-05-17T23:57:08.332348Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:57:08.332348Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.06626","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":"2026-05-17T23:57:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xn0wem1zofdzCZfqhH+wrJVnRijWBKM0j6XxyM4AiqtMZTYlyjQBYjE00nhdTLhpa4encsxM4okPlfvXPqiJCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T05:46:10.632898Z"},"content_sha256":"94aaca493884c1a1dd44abf51ebf33d61149003792818fa46aa2dc4084408705","schema_version":"1.0","event_id":"sha256:94aaca493884c1a1dd44abf51ebf33d61149003792818fa46aa2dc4084408705"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:E5DJZVKDELUPRUF3AAJ5ZVVINP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Microscopic control and detection of ultracold strontium in optical-tweezer arrays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.quant-gas","quant-ph"],"primary_cat":"physics.atom-ph","authors_text":"A. M. Kaufman, A. W. Young, M. A. Norcia","submitted_at":"2018-10-15T19:26:45Z","abstract_excerpt":"We demonstrate a set of tools for microscopic control of neutral strontium atoms. We report single-atom loading into an array of sub-wavelength scale optical tweezers, light-shift free control of a narrow-linewidth optical transition, three-dimensional ground-state cooling, and high-fidelity nondestructive imaging of single atoms on sub-wavelength spatial scales. Extending the microscopic control currently achievable in single-valence-electron atoms to species with more complex internal structure, like strontium, unlocks a wealth of opportunities in quantum information science, including tweez"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.06626","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":"2026-05-17T23:57:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AshjgVn061hl8PQXCCTo+7q89AwG5VcJvHFZIrrW8v+JYsL1pAX1RXYzYchCi8brCh8i7Kd8pNf/9o1LqwxFCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T05:46:10.633238Z"},"content_sha256":"6e82e2487bd1edae435ddf2448dd74224e39912e32fa1cdb1b89449dd1ad5229","schema_version":"1.0","event_id":"sha256:6e82e2487bd1edae435ddf2448dd74224e39912e32fa1cdb1b89449dd1ad5229"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/E5DJZVKDELUPRUF3AAJ5ZVVINP/bundle.json","state_url":"https://pith.science/pith/E5DJZVKDELUPRUF3AAJ5ZVVINP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/E5DJZVKDELUPRUF3AAJ5ZVVINP/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":"2026-06-27T05:46:10Z","links":{"resolver":"https://pith.science/pith/E5DJZVKDELUPRUF3AAJ5ZVVINP","bundle":"https://pith.science/pith/E5DJZVKDELUPRUF3AAJ5ZVVINP/bundle.json","state":"https://pith.science/pith/E5DJZVKDELUPRUF3AAJ5ZVVINP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/E5DJZVKDELUPRUF3AAJ5ZVVINP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:E5DJZVKDELUPRUF3AAJ5ZVVINP","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":"1d9e6520bd28f7f86106e4537a41c026f49e7e599a56277cfda47bce46f5365d","cross_cats_sorted":["cond-mat.quant-gas","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2018-10-15T19:26:45Z","title_canon_sha256":"90bf43f50490ba99906037006418a9e61f9e4ec89f946fecc4cad8417410ff6b"},"schema_version":"1.0","source":{"id":"1810.06626","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.06626","created_at":"2026-05-17T23:57:08Z"},{"alias_kind":"arxiv_version","alias_value":"1810.06626v1","created_at":"2026-05-17T23:57:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.06626","created_at":"2026-05-17T23:57:08Z"},{"alias_kind":"pith_short_12","alias_value":"E5DJZVKDELUP","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"E5DJZVKDELUPRUF3","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"E5DJZVKD","created_at":"2026-05-18T12:32:19Z"}],"graph_snapshots":[{"event_id":"sha256:6e82e2487bd1edae435ddf2448dd74224e39912e32fa1cdb1b89449dd1ad5229","target":"graph","created_at":"2026-05-17T23:57:08Z","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 demonstrate a set of tools for microscopic control of neutral strontium atoms. We report single-atom loading into an array of sub-wavelength scale optical tweezers, light-shift free control of a narrow-linewidth optical transition, three-dimensional ground-state cooling, and high-fidelity nondestructive imaging of single atoms on sub-wavelength spatial scales. Extending the microscopic control currently achievable in single-valence-electron atoms to species with more complex internal structure, like strontium, unlocks a wealth of opportunities in quantum information science, including tweez","authors_text":"A. M. Kaufman, A. W. Young, M. A. Norcia","cross_cats":["cond-mat.quant-gas","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2018-10-15T19:26:45Z","title":"Microscopic control and detection of ultracold strontium in optical-tweezer arrays"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.06626","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":"sha256:94aaca493884c1a1dd44abf51ebf33d61149003792818fa46aa2dc4084408705","target":"record","created_at":"2026-05-17T23:57:08Z","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":"1d9e6520bd28f7f86106e4537a41c026f49e7e599a56277cfda47bce46f5365d","cross_cats_sorted":["cond-mat.quant-gas","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2018-10-15T19:26:45Z","title_canon_sha256":"90bf43f50490ba99906037006418a9e61f9e4ec89f946fecc4cad8417410ff6b"},"schema_version":"1.0","source":{"id":"1810.06626","kind":"arxiv","version":1}},"canonical_sha256":"27469cd54322e8f8d0bb0013dcd6a86bca18684d6c6f0d701c3f404cc79f2bb7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"27469cd54322e8f8d0bb0013dcd6a86bca18684d6c6f0d701c3f404cc79f2bb7","first_computed_at":"2026-05-17T23:57:08.332348Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:57:08.332348Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"882sGON0C03ikwq/Vh9Flelwp+A12FtTo9SZ7QFlG1EHWDaONy3xQGYBz0VyOtLQirmJ+KmGEjsof9wzuCyMAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:57:08.332701Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.06626","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:94aaca493884c1a1dd44abf51ebf33d61149003792818fa46aa2dc4084408705","sha256:6e82e2487bd1edae435ddf2448dd74224e39912e32fa1cdb1b89449dd1ad5229"],"state_sha256":"312d4c6659ee20841aba4aa93bb094e97754280aba316cc4e9006d90f08cb902"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KJRZryUk9ZnhejNKAQbSxiSgqTsDhgBmMYYD0w04F/kgiLapxBNytdnZrQmorm/D72y4rVV2jqNCfbH7e91JCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-27T05:46:10.635068Z","bundle_sha256":"b88413f9c6834ecc40824da4b36f95abce08091aaad5190413af17f72137993d"}}