{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:2C4VWHID6GYTVQCOWZVXTBJLMY","short_pith_number":"pith:2C4VWHID","canonical_record":{"source":{"id":"1212.2274","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-12-11T01:43:27Z","cross_cats_sorted":[],"title_canon_sha256":"dbcbba899d4567c8f3e75e3a2cd43a246f5a77ac41e55687b76053052a7c2c92","abstract_canon_sha256":"6685167eb1daeb9a8e284cd235d271a0aa07a3f899cacae4881ce34fc0e58040"},"schema_version":"1.0"},"canonical_sha256":"d0b95b1d03f1b13ac04eb66b79852b6619a28801e7bfcf17da8be8f04d4bb258","source":{"kind":"arxiv","id":"1212.2274","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.2274","created_at":"2026-05-18T03:29:50Z"},{"alias_kind":"arxiv_version","alias_value":"1212.2274v1","created_at":"2026-05-18T03:29:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.2274","created_at":"2026-05-18T03:29:50Z"},{"alias_kind":"pith_short_12","alias_value":"2C4VWHID6GYT","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"2C4VWHID6GYTVQCO","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"2C4VWHID","created_at":"2026-05-18T12:26:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:2C4VWHID6GYTVQCOWZVXTBJLMY","target":"record","payload":{"canonical_record":{"source":{"id":"1212.2274","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-12-11T01:43:27Z","cross_cats_sorted":[],"title_canon_sha256":"dbcbba899d4567c8f3e75e3a2cd43a246f5a77ac41e55687b76053052a7c2c92","abstract_canon_sha256":"6685167eb1daeb9a8e284cd235d271a0aa07a3f899cacae4881ce34fc0e58040"},"schema_version":"1.0"},"canonical_sha256":"d0b95b1d03f1b13ac04eb66b79852b6619a28801e7bfcf17da8be8f04d4bb258","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:29:50.417612Z","signature_b64":"KnRUdK2WsiQtcMILoYmrdve6aOVrGg5vke9ItnoxD0NBNHNwW0FGDFJOd7xiu6YoJiGtgZEPVtN6dNu2W1OIBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d0b95b1d03f1b13ac04eb66b79852b6619a28801e7bfcf17da8be8f04d4bb258","last_reissued_at":"2026-05-18T03:29:50.416884Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:29:50.416884Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1212.2274","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":"2026-05-18T03:29:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jSO+rEE092OQGUzgu5WOn+mbxV+XhTEGHOMUBg8GcAmnOhjdZGyXgdGTWc8UFmik75qyCmQ2j/bc7hbJjwwVCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T01:20:38.056118Z"},"content_sha256":"c06ef4c68c432fbb6d8267057066313a9662660734f0525733674cd8b805eff1","schema_version":"1.0","event_id":"sha256:c06ef4c68c432fbb6d8267057066313a9662660734f0525733674cd8b805eff1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:2C4VWHID6GYTVQCOWZVXTBJLMY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Kerr effect as evidence of gyrotropic order in the cuprates","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"A. Kapitulnik, J. Orenstein, Pavan Hosur, S.A. Kivelson, S. Raghu","submitted_at":"2012-12-11T01:43:27Z","abstract_excerpt":"The Kerr effect can arise in a time-reversal invariant dissipative medium that is \"gyrotropic\", i.e. one that breaks inversion ($\\mathcal I$) and all mirror symmetries. Examples of such systems include electron analogs of cholesteric liquid crystals, and their descendants, such as systems with chiral charge ordering. We present arguments that the striking Kerr onset seen in the pseudogap phase of a large number of cuprate high temperature superconductors is evidence of chiral charge ordering. We discuss additional experimental consequences of a phase transition to a gyrotropic state, including"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.2274","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":"2026-05-18T03:29:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Iyyg5jUdUX55EWWTarfPjKRWZBOerH0E67bhKKUVnHR3HxdrY68OYa4OmflOe6YCGP7VdLm7dRy+kUwqKcu9AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T01:20:38.056829Z"},"content_sha256":"54c98d56ba0954b49a5012b32648e1aff8011052bfce173726c292d19acc471e","schema_version":"1.0","event_id":"sha256:54c98d56ba0954b49a5012b32648e1aff8011052bfce173726c292d19acc471e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2C4VWHID6GYTVQCOWZVXTBJLMY/bundle.json","state_url":"https://pith.science/pith/2C4VWHID6GYTVQCOWZVXTBJLMY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2C4VWHID6GYTVQCOWZVXTBJLMY/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":"2026-05-31T01:20:38Z","links":{"resolver":"https://pith.science/pith/2C4VWHID6GYTVQCOWZVXTBJLMY","bundle":"https://pith.science/pith/2C4VWHID6GYTVQCOWZVXTBJLMY/bundle.json","state":"https://pith.science/pith/2C4VWHID6GYTVQCOWZVXTBJLMY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2C4VWHID6GYTVQCOWZVXTBJLMY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:2C4VWHID6GYTVQCOWZVXTBJLMY","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":"6685167eb1daeb9a8e284cd235d271a0aa07a3f899cacae4881ce34fc0e58040","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-12-11T01:43:27Z","title_canon_sha256":"dbcbba899d4567c8f3e75e3a2cd43a246f5a77ac41e55687b76053052a7c2c92"},"schema_version":"1.0","source":{"id":"1212.2274","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.2274","created_at":"2026-05-18T03:29:50Z"},{"alias_kind":"arxiv_version","alias_value":"1212.2274v1","created_at":"2026-05-18T03:29:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.2274","created_at":"2026-05-18T03:29:50Z"},{"alias_kind":"pith_short_12","alias_value":"2C4VWHID6GYT","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"2C4VWHID6GYTVQCO","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"2C4VWHID","created_at":"2026-05-18T12:26:50Z"}],"graph_snapshots":[{"event_id":"sha256:54c98d56ba0954b49a5012b32648e1aff8011052bfce173726c292d19acc471e","target":"graph","created_at":"2026-05-18T03:29:50Z","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":"The Kerr effect can arise in a time-reversal invariant dissipative medium that is \"gyrotropic\", i.e. one that breaks inversion ($\\mathcal I$) and all mirror symmetries. Examples of such systems include electron analogs of cholesteric liquid crystals, and their descendants, such as systems with chiral charge ordering. We present arguments that the striking Kerr onset seen in the pseudogap phase of a large number of cuprate high temperature superconductors is evidence of chiral charge ordering. We discuss additional experimental consequences of a phase transition to a gyrotropic state, including","authors_text":"A. Kapitulnik, J. Orenstein, Pavan Hosur, S.A. Kivelson, S. Raghu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-12-11T01:43:27Z","title":"Kerr effect as evidence of gyrotropic order in the cuprates"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.2274","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:c06ef4c68c432fbb6d8267057066313a9662660734f0525733674cd8b805eff1","target":"record","created_at":"2026-05-18T03:29:50Z","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":"6685167eb1daeb9a8e284cd235d271a0aa07a3f899cacae4881ce34fc0e58040","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-12-11T01:43:27Z","title_canon_sha256":"dbcbba899d4567c8f3e75e3a2cd43a246f5a77ac41e55687b76053052a7c2c92"},"schema_version":"1.0","source":{"id":"1212.2274","kind":"arxiv","version":1}},"canonical_sha256":"d0b95b1d03f1b13ac04eb66b79852b6619a28801e7bfcf17da8be8f04d4bb258","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d0b95b1d03f1b13ac04eb66b79852b6619a28801e7bfcf17da8be8f04d4bb258","first_computed_at":"2026-05-18T03:29:50.416884Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:29:50.416884Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KnRUdK2WsiQtcMILoYmrdve6aOVrGg5vke9ItnoxD0NBNHNwW0FGDFJOd7xiu6YoJiGtgZEPVtN6dNu2W1OIBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:29:50.417612Z","signed_message":"canonical_sha256_bytes"},"source_id":"1212.2274","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c06ef4c68c432fbb6d8267057066313a9662660734f0525733674cd8b805eff1","sha256:54c98d56ba0954b49a5012b32648e1aff8011052bfce173726c292d19acc471e"],"state_sha256":"40018edffa628cae5919d96df35238b8116031b4b3f3c8d9412b6c6e803ce86c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bxY4viaG0swjMVemBLkrayXYpaetImFoCFhJ3FNrmGmHt48YEmhsQDKRv3n5he3c1oK9pPQI6vd22iOddU1uBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T01:20:38.060797Z","bundle_sha256":"0254e33969abb31942cb4a3aa6bc1b4152553193adf7c8592b522e5984d4c0c7"}}