{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:FXKCI63BXNE6RZQXKCVL3ORRVI","short_pith_number":"pith:FXKCI63B","canonical_record":{"source":{"id":"2507.16977","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2025-07-22T19:28:50Z","cross_cats_sorted":[],"title_canon_sha256":"fc741b8cf439b706eab2fd2c45d58280da98d55aaf884ead58c582510a0d4133","abstract_canon_sha256":"da061d98ff37be1dc082221470804d64640dae7b55ca801dba74671e7ff2f51b"},"schema_version":"1.0"},"canonical_sha256":"2dd4247b61bb49e8e61750aabdba31aa3a43c57817d772fd400b99fdcce41c27","source":{"kind":"arxiv","id":"2507.16977","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.16977","created_at":"2026-07-05T11:41:59Z"},{"alias_kind":"arxiv_version","alias_value":"2507.16977v1","created_at":"2026-07-05T11:41:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.16977","created_at":"2026-07-05T11:41:59Z"},{"alias_kind":"pith_short_12","alias_value":"FXKCI63BXNE6","created_at":"2026-07-05T11:41:59Z"},{"alias_kind":"pith_short_16","alias_value":"FXKCI63BXNE6RZQX","created_at":"2026-07-05T11:41:59Z"},{"alias_kind":"pith_short_8","alias_value":"FXKCI63B","created_at":"2026-07-05T11:41:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:FXKCI63BXNE6RZQXKCVL3ORRVI","target":"record","payload":{"canonical_record":{"source":{"id":"2507.16977","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2025-07-22T19:28:50Z","cross_cats_sorted":[],"title_canon_sha256":"fc741b8cf439b706eab2fd2c45d58280da98d55aaf884ead58c582510a0d4133","abstract_canon_sha256":"da061d98ff37be1dc082221470804d64640dae7b55ca801dba74671e7ff2f51b"},"schema_version":"1.0"},"canonical_sha256":"2dd4247b61bb49e8e61750aabdba31aa3a43c57817d772fd400b99fdcce41c27","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:41:59.461022Z","signature_b64":"p0yHSJ+8bNfNyscKBTP99zj7ukotXt9sfIgoCekDUqfIRl9afLYOTjeV+5eTrpwMXezJux6afEDZQMvkYdDQCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2dd4247b61bb49e8e61750aabdba31aa3a43c57817d772fd400b99fdcce41c27","last_reissued_at":"2026-07-05T11:41:59.460542Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:41:59.460542Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2507.16977","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":"2026-07-05T11:41:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hQw4H+V811iUd6ZhsmVzxq/khtNIHc5gwL8nXyF2Rt/hFRfRQG8G+59SJeFj0vlVG9ezurFWq1Iip79il7YMCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T12:35:39.307075Z"},"content_sha256":"cc421792babe8c7c963ce6e0f75d9f537513c2b5c1a50a055bf61eaf56190945","schema_version":"1.0","event_id":"sha256:cc421792babe8c7c963ce6e0f75d9f537513c2b5c1a50a055bf61eaf56190945"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:FXKCI63BXNE6RZQXKCVL3ORRVI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Emergent discrete space-time crystal of Majorana-like quasiparticles in chiral liquid crystals","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Hanqing Zhao, Ivan I. Smalyukh, Rui Zhang","submitted_at":"2025-07-22T19:28:50Z","abstract_excerpt":"Time crystals spontaneously break the time translation symmetry, as recently has been frequently reported in quantum systems. Here we describe the observation of classical analogues of both 1+1-dimensional and 2+1-dimensional discrete space-time crystals in a liquid crystal system driven by a Floquet electrical signal. These classical time crystals comprise particle-like structural features and exists over a wide range of temperatures and electrical driving conditions. The phenomenon-enabling period-doubling effect comes from their topological Majorana-like quasiparticle features, where period"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.16977","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/2507.16977/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":"2026-07-05T11:41:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AI1gQDlPSSiq/YnhxF3rUrgJmGwiBzE2m32G6j7aVOdQXXFb9hLldyv6vMCdtZTPPHBdI5rzlkUe6p3kPSNbBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T12:35:39.307552Z"},"content_sha256":"46366c0aac859ae9e091ed6f7dd849ac5b12c36db9cdfaff3fa9b35f357d17e7","schema_version":"1.0","event_id":"sha256:46366c0aac859ae9e091ed6f7dd849ac5b12c36db9cdfaff3fa9b35f357d17e7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FXKCI63BXNE6RZQXKCVL3ORRVI/bundle.json","state_url":"https://pith.science/pith/FXKCI63BXNE6RZQXKCVL3ORRVI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FXKCI63BXNE6RZQXKCVL3ORRVI/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":"2026-08-04T12:35:39Z","links":{"resolver":"https://pith.science/pith/FXKCI63BXNE6RZQXKCVL3ORRVI","bundle":"https://pith.science/pith/FXKCI63BXNE6RZQXKCVL3ORRVI/bundle.json","state":"https://pith.science/pith/FXKCI63BXNE6RZQXKCVL3ORRVI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FXKCI63BXNE6RZQXKCVL3ORRVI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:FXKCI63BXNE6RZQXKCVL3ORRVI","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":"da061d98ff37be1dc082221470804d64640dae7b55ca801dba74671e7ff2f51b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2025-07-22T19:28:50Z","title_canon_sha256":"fc741b8cf439b706eab2fd2c45d58280da98d55aaf884ead58c582510a0d4133"},"schema_version":"1.0","source":{"id":"2507.16977","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.16977","created_at":"2026-07-05T11:41:59Z"},{"alias_kind":"arxiv_version","alias_value":"2507.16977v1","created_at":"2026-07-05T11:41:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.16977","created_at":"2026-07-05T11:41:59Z"},{"alias_kind":"pith_short_12","alias_value":"FXKCI63BXNE6","created_at":"2026-07-05T11:41:59Z"},{"alias_kind":"pith_short_16","alias_value":"FXKCI63BXNE6RZQX","created_at":"2026-07-05T11:41:59Z"},{"alias_kind":"pith_short_8","alias_value":"FXKCI63B","created_at":"2026-07-05T11:41:59Z"}],"graph_snapshots":[{"event_id":"sha256:46366c0aac859ae9e091ed6f7dd849ac5b12c36db9cdfaff3fa9b35f357d17e7","target":"graph","created_at":"2026-07-05T11:41:59Z","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/2507.16977/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Time crystals spontaneously break the time translation symmetry, as recently has been frequently reported in quantum systems. Here we describe the observation of classical analogues of both 1+1-dimensional and 2+1-dimensional discrete space-time crystals in a liquid crystal system driven by a Floquet electrical signal. These classical time crystals comprise particle-like structural features and exists over a wide range of temperatures and electrical driving conditions. The phenomenon-enabling period-doubling effect comes from their topological Majorana-like quasiparticle features, where period","authors_text":"Hanqing Zhao, Ivan I. Smalyukh, Rui Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2025-07-22T19:28:50Z","title":"Emergent discrete space-time crystal of Majorana-like quasiparticles in chiral liquid crystals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.16977","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:cc421792babe8c7c963ce6e0f75d9f537513c2b5c1a50a055bf61eaf56190945","target":"record","created_at":"2026-07-05T11:41:59Z","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":"da061d98ff37be1dc082221470804d64640dae7b55ca801dba74671e7ff2f51b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2025-07-22T19:28:50Z","title_canon_sha256":"fc741b8cf439b706eab2fd2c45d58280da98d55aaf884ead58c582510a0d4133"},"schema_version":"1.0","source":{"id":"2507.16977","kind":"arxiv","version":1}},"canonical_sha256":"2dd4247b61bb49e8e61750aabdba31aa3a43c57817d772fd400b99fdcce41c27","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2dd4247b61bb49e8e61750aabdba31aa3a43c57817d772fd400b99fdcce41c27","first_computed_at":"2026-07-05T11:41:59.460542Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:41:59.460542Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"p0yHSJ+8bNfNyscKBTP99zj7ukotXt9sfIgoCekDUqfIRl9afLYOTjeV+5eTrpwMXezJux6afEDZQMvkYdDQCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:41:59.461022Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.16977","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cc421792babe8c7c963ce6e0f75d9f537513c2b5c1a50a055bf61eaf56190945","sha256:46366c0aac859ae9e091ed6f7dd849ac5b12c36db9cdfaff3fa9b35f357d17e7"],"state_sha256":"930f27deada984fb3eaeaeca4759aed9d08fdd579be7cddcd1c693abbd1beb63"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xdZtGvTalvh5y9krIcNSk9OaAqOr4qfqwtbs3q7EfnvVmJCMy7A8MsY4GkbbV8F3DmHZeALLid828kw5mfHYAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T12:35:39.311752Z","bundle_sha256":"2f1e955b45eb948ddd90a06a1681ba1d4893f8c1567c32864dcd49f427570124"}}