{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:FCM7BXENZIB3BFQDUQKPHINIZH","short_pith_number":"pith:FCM7BXEN","canonical_record":{"source":{"id":"2607.16592","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-07-18T02:24:04Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"4e35eacc796bb6a76865434bb6466e33c94ebafb09a7ff11fe550864d83b945d","abstract_canon_sha256":"051857ec2b2bd4c26783f651840f3426757514bbaff3bf4b4820b280f014913d"},"schema_version":"1.0"},"canonical_sha256":"2899f0dc8dca03b09603a414f3a1a8c9f7ed98e3cc758b67c87d87ed573e0bf8","source":{"kind":"arxiv","id":"2607.16592","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.16592","created_at":"2026-07-21T00:20:27Z"},{"alias_kind":"arxiv_version","alias_value":"2607.16592v1","created_at":"2026-07-21T00:20:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.16592","created_at":"2026-07-21T00:20:27Z"},{"alias_kind":"pith_short_12","alias_value":"FCM7BXENZIB3","created_at":"2026-07-21T00:20:27Z"},{"alias_kind":"pith_short_16","alias_value":"FCM7BXENZIB3BFQD","created_at":"2026-07-21T00:20:27Z"},{"alias_kind":"pith_short_8","alias_value":"FCM7BXEN","created_at":"2026-07-21T00:20:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:FCM7BXENZIB3BFQDUQKPHINIZH","target":"record","payload":{"canonical_record":{"source":{"id":"2607.16592","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-07-18T02:24:04Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"4e35eacc796bb6a76865434bb6466e33c94ebafb09a7ff11fe550864d83b945d","abstract_canon_sha256":"051857ec2b2bd4c26783f651840f3426757514bbaff3bf4b4820b280f014913d"},"schema_version":"1.0"},"canonical_sha256":"2899f0dc8dca03b09603a414f3a1a8c9f7ed98e3cc758b67c87d87ed573e0bf8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-21T00:20:27.263278Z","signature_b64":"zkQ2mCyUj+emXbSkTTv99hHIt7Ooh8gAuj97n3f9xkkzq58E/wrIfR71rqlQ7/djGK9XXmOa1IRCaM0cPWTkDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2899f0dc8dca03b09603a414f3a1a8c9f7ed98e3cc758b67c87d87ed573e0bf8","last_reissued_at":"2026-07-21T00:20:27.262408Z","signature_status":"signed_v1","first_computed_at":"2026-07-21T00:20:27.262408Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.16592","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":"2026-07-21T00:20:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LBQmNf9vunmkc2cs+zBsNzDS9MlFMXkg7gVhYaLnLazFfQW7phr/dmjf4PLBGOKHLo3vR35wnp1tcxxpSvy2DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T09:59:57.202768Z"},"content_sha256":"d7f9d6480dcbb66c61174271554bee4c8400fecf6edf3d099b32b227e82de3e4","schema_version":"1.0","event_id":"sha256:d7f9d6480dcbb66c61174271554bee4c8400fecf6edf3d099b32b227e82de3e4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:FCM7BXENZIB3BFQDUQKPHINIZH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum dynamics of a levitated ferromagnetic gyroscope","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"quant-ph","authors_text":"Derek F. Jackson Kimball","submitted_at":"2026-07-18T02:24:04Z","abstract_excerpt":"We develop a quantum model for the rotational dynamics of a freely floating levitated ferromagnetic gyroscope (LFG), emphasizing the interplay between intrinsic spin $\\boldsymbol{S}$, mechanical angular momentum $\\boldsymbol{L}$, and magnetic torque. The conserved total angular momentum projection along the $z$-directed magnetic field $\\boldsymbol{B}$, $J_z=S_z+L_z$, is quantized, leading in the small-libration-amplitude limit to discrete precessional states $|m\\rangle$ (eigenstates of $J_z$ with eigenvalues $J_z = m\\hbar$) and librational harmonic oscillator states $|n\\rangle$ ($n=0,1,2,\\ldot"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.16592","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/2607.16592/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":"2026-07-21T00:20:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qy1nEptzdSRAKi4WLUhyDXkuertk5j8QynxAVH43Ay6jesRVCzOFfwVyyhTSdWaFtmVmCrXH7qi3PamFK3cjAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T09:59:57.203673Z"},"content_sha256":"9199757d0a03f3370f5503ad7a2814971b016fbb491277f83a6db52a790ffb85","schema_version":"1.0","event_id":"sha256:9199757d0a03f3370f5503ad7a2814971b016fbb491277f83a6db52a790ffb85"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FCM7BXENZIB3BFQDUQKPHINIZH/bundle.json","state_url":"https://pith.science/pith/FCM7BXENZIB3BFQDUQKPHINIZH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FCM7BXENZIB3BFQDUQKPHINIZH/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":"2026-08-16T09:59:57Z","links":{"resolver":"https://pith.science/pith/FCM7BXENZIB3BFQDUQKPHINIZH","bundle":"https://pith.science/pith/FCM7BXENZIB3BFQDUQKPHINIZH/bundle.json","state":"https://pith.science/pith/FCM7BXENZIB3BFQDUQKPHINIZH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FCM7BXENZIB3BFQDUQKPHINIZH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:FCM7BXENZIB3BFQDUQKPHINIZH","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":"051857ec2b2bd4c26783f651840f3426757514bbaff3bf4b4820b280f014913d","cross_cats_sorted":["physics.atom-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-07-18T02:24:04Z","title_canon_sha256":"4e35eacc796bb6a76865434bb6466e33c94ebafb09a7ff11fe550864d83b945d"},"schema_version":"1.0","source":{"id":"2607.16592","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.16592","created_at":"2026-07-21T00:20:27Z"},{"alias_kind":"arxiv_version","alias_value":"2607.16592v1","created_at":"2026-07-21T00:20:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.16592","created_at":"2026-07-21T00:20:27Z"},{"alias_kind":"pith_short_12","alias_value":"FCM7BXENZIB3","created_at":"2026-07-21T00:20:27Z"},{"alias_kind":"pith_short_16","alias_value":"FCM7BXENZIB3BFQD","created_at":"2026-07-21T00:20:27Z"},{"alias_kind":"pith_short_8","alias_value":"FCM7BXEN","created_at":"2026-07-21T00:20:27Z"}],"graph_snapshots":[{"event_id":"sha256:9199757d0a03f3370f5503ad7a2814971b016fbb491277f83a6db52a790ffb85","target":"graph","created_at":"2026-07-21T00:20:27Z","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/2607.16592/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We develop a quantum model for the rotational dynamics of a freely floating levitated ferromagnetic gyroscope (LFG), emphasizing the interplay between intrinsic spin $\\boldsymbol{S}$, mechanical angular momentum $\\boldsymbol{L}$, and magnetic torque. The conserved total angular momentum projection along the $z$-directed magnetic field $\\boldsymbol{B}$, $J_z=S_z+L_z$, is quantized, leading in the small-libration-amplitude limit to discrete precessional states $|m\\rangle$ (eigenstates of $J_z$ with eigenvalues $J_z = m\\hbar$) and librational harmonic oscillator states $|n\\rangle$ ($n=0,1,2,\\ldot","authors_text":"Derek F. Jackson Kimball","cross_cats":["physics.atom-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-07-18T02:24:04Z","title":"Quantum dynamics of a levitated ferromagnetic gyroscope"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.16592","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:d7f9d6480dcbb66c61174271554bee4c8400fecf6edf3d099b32b227e82de3e4","target":"record","created_at":"2026-07-21T00:20:27Z","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":"051857ec2b2bd4c26783f651840f3426757514bbaff3bf4b4820b280f014913d","cross_cats_sorted":["physics.atom-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-07-18T02:24:04Z","title_canon_sha256":"4e35eacc796bb6a76865434bb6466e33c94ebafb09a7ff11fe550864d83b945d"},"schema_version":"1.0","source":{"id":"2607.16592","kind":"arxiv","version":1}},"canonical_sha256":"2899f0dc8dca03b09603a414f3a1a8c9f7ed98e3cc758b67c87d87ed573e0bf8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2899f0dc8dca03b09603a414f3a1a8c9f7ed98e3cc758b67c87d87ed573e0bf8","first_computed_at":"2026-07-21T00:20:27.262408Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-21T00:20:27.262408Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zkQ2mCyUj+emXbSkTTv99hHIt7Ooh8gAuj97n3f9xkkzq58E/wrIfR71rqlQ7/djGK9XXmOa1IRCaM0cPWTkDg==","signature_status":"signed_v1","signed_at":"2026-07-21T00:20:27.263278Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.16592","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d7f9d6480dcbb66c61174271554bee4c8400fecf6edf3d099b32b227e82de3e4","sha256:9199757d0a03f3370f5503ad7a2814971b016fbb491277f83a6db52a790ffb85"],"state_sha256":"7ce3d50f3be80a6821a29947595906d4b71b41d01cc220e44f8cc37689e72449"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qyt+EjOaaUKvG9YH8M0UleGCBLEK3gStw2MURTaDxV+KnrIF0mXUlO/4r9KycQ7+pTEjr3+IxU5U+QhLsWdHBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T09:59:57.209702Z","bundle_sha256":"0e8d02f59e5827bc3e87923f3bdb950a93828976b3032b364329ad909e18c7f6"}}