{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:QTJDMD72MGDCLWOSCPMYPMM567","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":"ee9f42a6c7e46b157782ef9f5322bdbec54181f33f3bf55361aa989d412ccad2","cross_cats_sorted":["cond-mat.mtrl-sci","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2020-07-18T09:56:24Z","title_canon_sha256":"2eb675b3c67c57ca1ab9ab4d0f7019b3dc176e78a369de9bc92dcd7680fcb74c"},"schema_version":"1.0","source":{"id":"2007.09388","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.09388","created_at":"2026-07-05T01:30:09Z"},{"alias_kind":"arxiv_version","alias_value":"2007.09388v1","created_at":"2026-07-05T01:30:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.09388","created_at":"2026-07-05T01:30:09Z"},{"alias_kind":"pith_short_12","alias_value":"QTJDMD72MGDC","created_at":"2026-07-05T01:30:09Z"},{"alias_kind":"pith_short_16","alias_value":"QTJDMD72MGDCLWOS","created_at":"2026-07-05T01:30:09Z"},{"alias_kind":"pith_short_8","alias_value":"QTJDMD72","created_at":"2026-07-05T01:30:09Z"}],"graph_snapshots":[{"event_id":"sha256:794efea7eede1020a3914a5d9904ec1e4b0c61ff4071b0d16d07177304b98932","target":"graph","created_at":"2026-07-05T01:30:09Z","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/2007.09388/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"One of the long sought-after goals in manipulation of light through light-matter interactions is the realization of magnetic-field-tuneable colouration, so-called magneto-chromatic effect, which holds great promise for optical, biochemical and medical applications due to its contactless and non-invasive nature. This goal can be achieved by magnetic-field controlled birefringence, where colours are produced by the interference between phase-retarded components of transmitted polarised light. Thus far birefringence-tuneable coloration has been demonstrated using electric field, material chiralit","authors_text":"A. K. Geim, Baofu Ding, Bilu Liu, Hui-Ming Cheng, I. V. Grigorieva, Wenjun Kuang, Yikun Pan","cross_cats":["cond-mat.mtrl-sci","physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2020-07-18T09:56:24Z","title":"Giant magneto-birefringence effect and tuneable colouration of 2D crystals' suspensions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.09388","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":"sha256:20f16b7ebf8515dbe1df285de0fe975f0803caf7faa0b16e9e2da07c8370f424","target":"record","created_at":"2026-07-05T01:30:09Z","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":"ee9f42a6c7e46b157782ef9f5322bdbec54181f33f3bf55361aa989d412ccad2","cross_cats_sorted":["cond-mat.mtrl-sci","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2020-07-18T09:56:24Z","title_canon_sha256":"2eb675b3c67c57ca1ab9ab4d0f7019b3dc176e78a369de9bc92dcd7680fcb74c"},"schema_version":"1.0","source":{"id":"2007.09388","kind":"arxiv","version":1}},"canonical_sha256":"84d2360ffa618625d9d213d987b19df7c0082e5e96137d60c60a8b648db0b964","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"84d2360ffa618625d9d213d987b19df7c0082e5e96137d60c60a8b648db0b964","first_computed_at":"2026-07-05T01:30:09.350091Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:30:09.350091Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rfeFePjlyeoq7yiw+jBRPNwi4gILpFwYT7tK0kNc4clGPSHKzKKraYhR3y5b4G3mPyczb0UFEl3EsZ6KAuvgAA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:30:09.350499Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.09388","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:20f16b7ebf8515dbe1df285de0fe975f0803caf7faa0b16e9e2da07c8370f424","sha256:794efea7eede1020a3914a5d9904ec1e4b0c61ff4071b0d16d07177304b98932"],"state_sha256":"0b491fc9ece9b8eaee15092900b1c2ce7b3625e38ede6b372f72e7cbb31188fe"}