{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:GVTL2GPT5FYRY5R6HROQAQFE3Z","short_pith_number":"pith:GVTL2GPT","canonical_record":{"source":{"id":"2004.02384","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-04-06T02:49:14Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"c8f0c764839ce23b4edc5083076233c528134a78c19bdd368c710adddd44141c","abstract_canon_sha256":"a297b6427d038d6381a8036e3ad3c64e023742669046d3d27af4f5ccd60b07f7"},"schema_version":"1.0"},"canonical_sha256":"3566bd19f3e9711c763e3c5d0040a4de745f426dc1e95909d8c564d6c57a7c85","source":{"kind":"arxiv","id":"2004.02384","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2004.02384","created_at":"2026-07-05T01:41:45Z"},{"alias_kind":"arxiv_version","alias_value":"2004.02384v1","created_at":"2026-07-05T01:41:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.02384","created_at":"2026-07-05T01:41:45Z"},{"alias_kind":"pith_short_12","alias_value":"GVTL2GPT5FYR","created_at":"2026-07-05T01:41:45Z"},{"alias_kind":"pith_short_16","alias_value":"GVTL2GPT5FYRY5R6","created_at":"2026-07-05T01:41:45Z"},{"alias_kind":"pith_short_8","alias_value":"GVTL2GPT","created_at":"2026-07-05T01:41:45Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:GVTL2GPT5FYRY5R6HROQAQFE3Z","target":"record","payload":{"canonical_record":{"source":{"id":"2004.02384","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-04-06T02:49:14Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"c8f0c764839ce23b4edc5083076233c528134a78c19bdd368c710adddd44141c","abstract_canon_sha256":"a297b6427d038d6381a8036e3ad3c64e023742669046d3d27af4f5ccd60b07f7"},"schema_version":"1.0"},"canonical_sha256":"3566bd19f3e9711c763e3c5d0040a4de745f426dc1e95909d8c564d6c57a7c85","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:41:45.498453Z","signature_b64":"U39XX24DJppyqwAWRGeSWJD8wZXOCf4IBA2GTGIoidegsK8NT/ZRJ2GEiuSTesOCkry9yCrX7d+Ro8Wn0nOZAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3566bd19f3e9711c763e3c5d0040a4de745f426dc1e95909d8c564d6c57a7c85","last_reissued_at":"2026-07-05T01:41:45.498004Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:41:45.498004Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2004.02384","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":"2026-07-05T01:41:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0BGv5v6LtXjKeBqMdFJnrVBoaJem0D/k0oVLorZWEmNLCWAx2woODOuTLZUFKruYd6eqtZQJRIx6JA1kdFzwBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T10:15:25.405305Z"},"content_sha256":"0440b0a6fa5ca1efe5d5e3efb02da3067e91c69fb35cc99e862fa85099918467","schema_version":"1.0","event_id":"sha256:0440b0a6fa5ca1efe5d5e3efb02da3067e91c69fb35cc99e862fa85099918467"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:GVTL2GPT5FYRY5R6HROQAQFE3Z","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"5D cooling and nonlinear dynamics of an optically levitated nanodumbbell","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"physics.optics","authors_text":"Francis Robicheaux, Jaehoon Bang, Jonghoon Ahn, Peng Ju, Tongcang Li, Troy Seberson, Xingyu Gao, Zhujing Xu","submitted_at":"2020-04-06T02:49:14Z","abstract_excerpt":"Optically levitated nonspherical particles in vacuum are excellent candidates for torque sensing, rotational quantum mechanics, high-frequency gravitational wave detection, and multiple other applications. Many potential applications, such as detecting the Casimir torque near a birefringent surface, require simultaneous cooling of both the center-of-mass motion and the torsional vibration (or rotation) of a nonspherical nanoparticle. Here we report the first 5D cooling of a levitated nanoparticle. We cool the 3 center-of-mass motion modes and 2 torsional vibration modes of a levitated nanodumb"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.02384","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2004.02384/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T01:41:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m7dqrBQcCuxHmFT3vLmi5qWimUmNfQGnjgekwXcDHvijUrhbnvodoIpVK3HY8/hSps6ej2krL7zZnqwtYIWcAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T10:15:25.406135Z"},"content_sha256":"dbd4704451ca7e13440aee950fb1877982a51dfc348ddb088407e0c4bfab516c","schema_version":"1.0","event_id":"sha256:dbd4704451ca7e13440aee950fb1877982a51dfc348ddb088407e0c4bfab516c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GVTL2GPT5FYRY5R6HROQAQFE3Z/bundle.json","state_url":"https://pith.science/pith/GVTL2GPT5FYRY5R6HROQAQFE3Z/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GVTL2GPT5FYRY5R6HROQAQFE3Z/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":"2026-08-04T10:15:25Z","links":{"resolver":"https://pith.science/pith/GVTL2GPT5FYRY5R6HROQAQFE3Z","bundle":"https://pith.science/pith/GVTL2GPT5FYRY5R6HROQAQFE3Z/bundle.json","state":"https://pith.science/pith/GVTL2GPT5FYRY5R6HROQAQFE3Z/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GVTL2GPT5FYRY5R6HROQAQFE3Z/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:GVTL2GPT5FYRY5R6HROQAQFE3Z","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":"a297b6427d038d6381a8036e3ad3c64e023742669046d3d27af4f5ccd60b07f7","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-04-06T02:49:14Z","title_canon_sha256":"c8f0c764839ce23b4edc5083076233c528134a78c19bdd368c710adddd44141c"},"schema_version":"1.0","source":{"id":"2004.02384","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2004.02384","created_at":"2026-07-05T01:41:45Z"},{"alias_kind":"arxiv_version","alias_value":"2004.02384v1","created_at":"2026-07-05T01:41:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.02384","created_at":"2026-07-05T01:41:45Z"},{"alias_kind":"pith_short_12","alias_value":"GVTL2GPT5FYR","created_at":"2026-07-05T01:41:45Z"},{"alias_kind":"pith_short_16","alias_value":"GVTL2GPT5FYRY5R6","created_at":"2026-07-05T01:41:45Z"},{"alias_kind":"pith_short_8","alias_value":"GVTL2GPT","created_at":"2026-07-05T01:41:45Z"}],"graph_snapshots":[{"event_id":"sha256:dbd4704451ca7e13440aee950fb1877982a51dfc348ddb088407e0c4bfab516c","target":"graph","created_at":"2026-07-05T01:41:45Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2004.02384/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Optically levitated nonspherical particles in vacuum are excellent candidates for torque sensing, rotational quantum mechanics, high-frequency gravitational wave detection, and multiple other applications. Many potential applications, such as detecting the Casimir torque near a birefringent surface, require simultaneous cooling of both the center-of-mass motion and the torsional vibration (or rotation) of a nonspherical nanoparticle. Here we report the first 5D cooling of a levitated nanoparticle. We cool the 3 center-of-mass motion modes and 2 torsional vibration modes of a levitated nanodumb","authors_text":"Francis Robicheaux, Jaehoon Bang, Jonghoon Ahn, Peng Ju, Tongcang Li, Troy Seberson, Xingyu Gao, Zhujing Xu","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-04-06T02:49:14Z","title":"5D cooling and nonlinear dynamics of an optically levitated nanodumbbell"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.02384","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":"sha256:0440b0a6fa5ca1efe5d5e3efb02da3067e91c69fb35cc99e862fa85099918467","target":"record","created_at":"2026-07-05T01:41:45Z","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":"a297b6427d038d6381a8036e3ad3c64e023742669046d3d27af4f5ccd60b07f7","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-04-06T02:49:14Z","title_canon_sha256":"c8f0c764839ce23b4edc5083076233c528134a78c19bdd368c710adddd44141c"},"schema_version":"1.0","source":{"id":"2004.02384","kind":"arxiv","version":1}},"canonical_sha256":"3566bd19f3e9711c763e3c5d0040a4de745f426dc1e95909d8c564d6c57a7c85","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3566bd19f3e9711c763e3c5d0040a4de745f426dc1e95909d8c564d6c57a7c85","first_computed_at":"2026-07-05T01:41:45.498004Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:41:45.498004Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"U39XX24DJppyqwAWRGeSWJD8wZXOCf4IBA2GTGIoidegsK8NT/ZRJ2GEiuSTesOCkry9yCrX7d+Ro8Wn0nOZAg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:41:45.498453Z","signed_message":"canonical_sha256_bytes"},"source_id":"2004.02384","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0440b0a6fa5ca1efe5d5e3efb02da3067e91c69fb35cc99e862fa85099918467","sha256:dbd4704451ca7e13440aee950fb1877982a51dfc348ddb088407e0c4bfab516c"],"state_sha256":"ee420bc8a8041901213627772beeadc073f8c3419788216f898626d175e2bee9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xLWPpYn2wH2kRS9ULUhcrOvm63Io+B2QLPBM+NfCJ2fkSjusshMFr2RfiMljqBZiPg3WgZCdSE8Y/85CqsxQAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T10:15:25.416453Z","bundle_sha256":"7f48aad4541e777243aaa76960b416b3b9b1c3ab09d5b17bf5081b2c02387ba9"}}