{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:ZFDIQXAUGPWK2AHTIDP7HATTCP","short_pith_number":"pith:ZFDIQXAU","canonical_record":{"source":{"id":"1901.08882","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-01-25T14:21:56Z","cross_cats_sorted":[],"title_canon_sha256":"d97839151583b680db36ae40995666c20c4596ef368a3bcb33d5e95811594565","abstract_canon_sha256":"c4ac9eb2210e6e5e76ffbe105ef84a457a4d05b78d101250f34fd2320678abdc"},"schema_version":"1.0"},"canonical_sha256":"c946885c1433ecad00f340dff3827313d1b8da59f72882a3036f473be6b4748c","source":{"kind":"arxiv","id":"1901.08882","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.08882","created_at":"2026-05-17T23:51:13Z"},{"alias_kind":"arxiv_version","alias_value":"1901.08882v1","created_at":"2026-05-17T23:51:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.08882","created_at":"2026-05-17T23:51:13Z"},{"alias_kind":"pith_short_12","alias_value":"ZFDIQXAUGPWK","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"ZFDIQXAUGPWK2AHT","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"ZFDIQXAU","created_at":"2026-05-18T12:33:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:ZFDIQXAUGPWK2AHTIDP7HATTCP","target":"record","payload":{"canonical_record":{"source":{"id":"1901.08882","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-01-25T14:21:56Z","cross_cats_sorted":[],"title_canon_sha256":"d97839151583b680db36ae40995666c20c4596ef368a3bcb33d5e95811594565","abstract_canon_sha256":"c4ac9eb2210e6e5e76ffbe105ef84a457a4d05b78d101250f34fd2320678abdc"},"schema_version":"1.0"},"canonical_sha256":"c946885c1433ecad00f340dff3827313d1b8da59f72882a3036f473be6b4748c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:51:13.856392Z","signature_b64":"TKB/Zz4aKnbdF2AI5xRP2Ptt2vYOmm642K62d9AX0WODbNhqXf9oqgMok87iGRN+C9yPiVCKF0r+JsAtESfyCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c946885c1433ecad00f340dff3827313d1b8da59f72882a3036f473be6b4748c","last_reissued_at":"2026-05-17T23:51:13.855694Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:51:13.855694Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1901.08882","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":"2026-05-17T23:51:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6/mWFLOjkzuZ8BYBd1E2F9cOuBJYAVMzRjFpT97fUe+h2SgVe4i+ADOyMgHkLjDrZ9GS4W/A0PgK5XciFbL1Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T20:55:34.859309Z"},"content_sha256":"4638f9c9873fa16322022055f20df9a8331271ba0ff4d396be179b8dcad90f1e","schema_version":"1.0","event_id":"sha256:4638f9c9873fa16322022055f20df9a8331271ba0ff4d396be179b8dcad90f1e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:ZFDIQXAUGPWK2AHTIDP7HATTCP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Defects in vertically vibrated monolayers of cylinders","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Daniel de las Heras, Enrique Velasco, Johannes Renner, Miguel Gonzalez-Pinto, Yuri Martinez-Raton","submitted_at":"2019-01-25T14:21:56Z","abstract_excerpt":"We analyse liquid-crystalline ordering in vertically vibrated monolayers of cylinders confined in a circular cavity. Short cylinders form tetratic arrangements with C$_4$ symmetry. This symmetry, which is incompatible with the geometry of the cavity, is restored by the presence of four point defects with total topological charge $+4$. Equilibrium Monte Carlo simulations predict the same structure. A new method to measure the elastic properties of the tetratic medium is developed which exploits the clear similarities between the vibrated dissipative system and the thermal equilibrium system. Ou"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.08882","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":"2026-05-17T23:51:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BdmKCMk8+z0kKl0UHolRPtJX438X2BmxbxHegyXJj6Im7LAGseNHkDQgRfXxjQsuhaM8jRSbgrFvrPrM7iglBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T20:55:34.859676Z"},"content_sha256":"18958e0307a9f4d0b0ff715c313386e80291ee9d9923e23ff16f8043aa75c8a1","schema_version":"1.0","event_id":"sha256:18958e0307a9f4d0b0ff715c313386e80291ee9d9923e23ff16f8043aa75c8a1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZFDIQXAUGPWK2AHTIDP7HATTCP/bundle.json","state_url":"https://pith.science/pith/ZFDIQXAUGPWK2AHTIDP7HATTCP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZFDIQXAUGPWK2AHTIDP7HATTCP/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":"2026-06-03T20:55:34Z","links":{"resolver":"https://pith.science/pith/ZFDIQXAUGPWK2AHTIDP7HATTCP","bundle":"https://pith.science/pith/ZFDIQXAUGPWK2AHTIDP7HATTCP/bundle.json","state":"https://pith.science/pith/ZFDIQXAUGPWK2AHTIDP7HATTCP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZFDIQXAUGPWK2AHTIDP7HATTCP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:ZFDIQXAUGPWK2AHTIDP7HATTCP","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":"c4ac9eb2210e6e5e76ffbe105ef84a457a4d05b78d101250f34fd2320678abdc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-01-25T14:21:56Z","title_canon_sha256":"d97839151583b680db36ae40995666c20c4596ef368a3bcb33d5e95811594565"},"schema_version":"1.0","source":{"id":"1901.08882","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.08882","created_at":"2026-05-17T23:51:13Z"},{"alias_kind":"arxiv_version","alias_value":"1901.08882v1","created_at":"2026-05-17T23:51:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.08882","created_at":"2026-05-17T23:51:13Z"},{"alias_kind":"pith_short_12","alias_value":"ZFDIQXAUGPWK","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"ZFDIQXAUGPWK2AHT","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"ZFDIQXAU","created_at":"2026-05-18T12:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:18958e0307a9f4d0b0ff715c313386e80291ee9d9923e23ff16f8043aa75c8a1","target":"graph","created_at":"2026-05-17T23:51:13Z","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":"We analyse liquid-crystalline ordering in vertically vibrated monolayers of cylinders confined in a circular cavity. Short cylinders form tetratic arrangements with C$_4$ symmetry. This symmetry, which is incompatible with the geometry of the cavity, is restored by the presence of four point defects with total topological charge $+4$. Equilibrium Monte Carlo simulations predict the same structure. A new method to measure the elastic properties of the tetratic medium is developed which exploits the clear similarities between the vibrated dissipative system and the thermal equilibrium system. Ou","authors_text":"Daniel de las Heras, Enrique Velasco, Johannes Renner, Miguel Gonzalez-Pinto, Yuri Martinez-Raton","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-01-25T14:21:56Z","title":"Defects in vertically vibrated monolayers of cylinders"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.08882","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":"sha256:4638f9c9873fa16322022055f20df9a8331271ba0ff4d396be179b8dcad90f1e","target":"record","created_at":"2026-05-17T23:51:13Z","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":"c4ac9eb2210e6e5e76ffbe105ef84a457a4d05b78d101250f34fd2320678abdc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-01-25T14:21:56Z","title_canon_sha256":"d97839151583b680db36ae40995666c20c4596ef368a3bcb33d5e95811594565"},"schema_version":"1.0","source":{"id":"1901.08882","kind":"arxiv","version":1}},"canonical_sha256":"c946885c1433ecad00f340dff3827313d1b8da59f72882a3036f473be6b4748c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c946885c1433ecad00f340dff3827313d1b8da59f72882a3036f473be6b4748c","first_computed_at":"2026-05-17T23:51:13.855694Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:51:13.855694Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TKB/Zz4aKnbdF2AI5xRP2Ptt2vYOmm642K62d9AX0WODbNhqXf9oqgMok87iGRN+C9yPiVCKF0r+JsAtESfyCw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:51:13.856392Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.08882","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4638f9c9873fa16322022055f20df9a8331271ba0ff4d396be179b8dcad90f1e","sha256:18958e0307a9f4d0b0ff715c313386e80291ee9d9923e23ff16f8043aa75c8a1"],"state_sha256":"23f3bb76d8af474c9ce1820566b50d12a2e5b7808389ffa4198ae0ceb62d15be"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"reUuBmSRaOhy/4FTvReWmdctmtrCF9njQXezf3opGYftgT8/r+e6USTlm9gE9vCaSH8TfBKWrOMadjD3oL4ADg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T20:55:34.861749Z","bundle_sha256":"53c84e4f6d9ee78134e1e126a50f550e98c4abb3883ad61309c0045cd4c15894"}}