{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:B25UC4WDYYEKKQN3ECQ6HRSXW4","short_pith_number":"pith:B25UC4WD","canonical_record":{"source":{"id":"1701.05022","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2017-01-18T12:00:44Z","cross_cats_sorted":[],"title_canon_sha256":"528b4d405cbb267fdd738f416ad533c4695a89dd9af9320000e4ff5ca7a693a4","abstract_canon_sha256":"cfc6cb33baf3d8b3048af657ceada3cea16b002f40e48b87b1e658707de615a8"},"schema_version":"1.0"},"canonical_sha256":"0ebb4172c3c608a541bb20a1e3c657b720a59a5d5807fd405de8332823c5254e","source":{"kind":"arxiv","id":"1701.05022","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.05022","created_at":"2026-05-18T00:46:07Z"},{"alias_kind":"arxiv_version","alias_value":"1701.05022v1","created_at":"2026-05-18T00:46:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.05022","created_at":"2026-05-18T00:46:07Z"},{"alias_kind":"pith_short_12","alias_value":"B25UC4WDYYEK","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_16","alias_value":"B25UC4WDYYEKKQN3","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_8","alias_value":"B25UC4WD","created_at":"2026-05-18T12:31:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:B25UC4WDYYEKKQN3ECQ6HRSXW4","target":"record","payload":{"canonical_record":{"source":{"id":"1701.05022","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2017-01-18T12:00:44Z","cross_cats_sorted":[],"title_canon_sha256":"528b4d405cbb267fdd738f416ad533c4695a89dd9af9320000e4ff5ca7a693a4","abstract_canon_sha256":"cfc6cb33baf3d8b3048af657ceada3cea16b002f40e48b87b1e658707de615a8"},"schema_version":"1.0"},"canonical_sha256":"0ebb4172c3c608a541bb20a1e3c657b720a59a5d5807fd405de8332823c5254e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:46:07.684154Z","signature_b64":"jonaFL4NB7HiZrBFGwLYdh/poJSJazIFUpBT+yM1eXtZoCOjalJi+NI95vrX5HjKjBQMcfGGwkvxAyBggKJ0Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0ebb4172c3c608a541bb20a1e3c657b720a59a5d5807fd405de8332823c5254e","last_reissued_at":"2026-05-18T00:46:07.683610Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:46:07.683610Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1701.05022","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":"2026-05-18T00:46:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8CzEKrCctz5zJnJpUAYhqRq5hrtpCFk2mrWEin2sXvxNJg0eBr01t2Mf8MUxUBWvZ6Fm3AQ1DXaqcEZTelecDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T10:04:04.433565Z"},"content_sha256":"4209f12be30f3992265ce8c0dc42b89089b1967f3951c6e60ced2afb607e7bfa","schema_version":"1.0","event_id":"sha256:4209f12be30f3992265ce8c0dc42b89089b1967f3951c6e60ced2afb607e7bfa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:B25UC4WDYYEKKQN3ECQ6HRSXW4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Hydrodynamic instabilities in active cholesteric liquid crystals","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Adriano Tiribocchi, Carl A. Whitfield, Davide Marenduzzo, Gareth P. Alexander, Sriram Ramaswamy, Tapan Chandra Adhyapak","submitted_at":"2017-01-18T12:00:44Z","abstract_excerpt":"We describe the basic properties and consequences of introducing active stresses, with principal direction along the local director, in cholesteric liquid crystals. The helical ground state is found to be linearly unstable to extensile stresses, without threshold in the limit of infinite system size, whereas contractile stresses are hydrodynamically screened by the cholesteric elasticity to give a finite threshold. This is confirmed numerically and the non-linear consequences of instability, in both extensile and contractile cases, are studied. We also consider the stresses associated to defec"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.05022","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":"2026-05-18T00:46:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MMWU9LhOJPxcXn5/9mxMXzKiQlA/ycflpvwMfd+cuu10GLgCKXFjXZ7THCIolPokoBsvbddJnN1c65jrqINuAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T10:04:04.434190Z"},"content_sha256":"678eedfa01b33c7dd33b7bf4f420613194f5cf1c75bb8ec43395e7945c40cfde","schema_version":"1.0","event_id":"sha256:678eedfa01b33c7dd33b7bf4f420613194f5cf1c75bb8ec43395e7945c40cfde"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/B25UC4WDYYEKKQN3ECQ6HRSXW4/bundle.json","state_url":"https://pith.science/pith/B25UC4WDYYEKKQN3ECQ6HRSXW4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/B25UC4WDYYEKKQN3ECQ6HRSXW4/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":"2026-05-28T10:04:04Z","links":{"resolver":"https://pith.science/pith/B25UC4WDYYEKKQN3ECQ6HRSXW4","bundle":"https://pith.science/pith/B25UC4WDYYEKKQN3ECQ6HRSXW4/bundle.json","state":"https://pith.science/pith/B25UC4WDYYEKKQN3ECQ6HRSXW4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/B25UC4WDYYEKKQN3ECQ6HRSXW4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:B25UC4WDYYEKKQN3ECQ6HRSXW4","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":"cfc6cb33baf3d8b3048af657ceada3cea16b002f40e48b87b1e658707de615a8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2017-01-18T12:00:44Z","title_canon_sha256":"528b4d405cbb267fdd738f416ad533c4695a89dd9af9320000e4ff5ca7a693a4"},"schema_version":"1.0","source":{"id":"1701.05022","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.05022","created_at":"2026-05-18T00:46:07Z"},{"alias_kind":"arxiv_version","alias_value":"1701.05022v1","created_at":"2026-05-18T00:46:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.05022","created_at":"2026-05-18T00:46:07Z"},{"alias_kind":"pith_short_12","alias_value":"B25UC4WDYYEK","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_16","alias_value":"B25UC4WDYYEKKQN3","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_8","alias_value":"B25UC4WD","created_at":"2026-05-18T12:31:08Z"}],"graph_snapshots":[{"event_id":"sha256:678eedfa01b33c7dd33b7bf4f420613194f5cf1c75bb8ec43395e7945c40cfde","target":"graph","created_at":"2026-05-18T00:46:07Z","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 describe the basic properties and consequences of introducing active stresses, with principal direction along the local director, in cholesteric liquid crystals. The helical ground state is found to be linearly unstable to extensile stresses, without threshold in the limit of infinite system size, whereas contractile stresses are hydrodynamically screened by the cholesteric elasticity to give a finite threshold. This is confirmed numerically and the non-linear consequences of instability, in both extensile and contractile cases, are studied. We also consider the stresses associated to defec","authors_text":"Adriano Tiribocchi, Carl A. Whitfield, Davide Marenduzzo, Gareth P. Alexander, Sriram Ramaswamy, Tapan Chandra Adhyapak","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2017-01-18T12:00:44Z","title":"Hydrodynamic instabilities in active cholesteric liquid crystals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.05022","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":"sha256:4209f12be30f3992265ce8c0dc42b89089b1967f3951c6e60ced2afb607e7bfa","target":"record","created_at":"2026-05-18T00:46:07Z","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":"cfc6cb33baf3d8b3048af657ceada3cea16b002f40e48b87b1e658707de615a8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2017-01-18T12:00:44Z","title_canon_sha256":"528b4d405cbb267fdd738f416ad533c4695a89dd9af9320000e4ff5ca7a693a4"},"schema_version":"1.0","source":{"id":"1701.05022","kind":"arxiv","version":1}},"canonical_sha256":"0ebb4172c3c608a541bb20a1e3c657b720a59a5d5807fd405de8332823c5254e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0ebb4172c3c608a541bb20a1e3c657b720a59a5d5807fd405de8332823c5254e","first_computed_at":"2026-05-18T00:46:07.683610Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:46:07.683610Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jonaFL4NB7HiZrBFGwLYdh/poJSJazIFUpBT+yM1eXtZoCOjalJi+NI95vrX5HjKjBQMcfGGwkvxAyBggKJ0Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:46:07.684154Z","signed_message":"canonical_sha256_bytes"},"source_id":"1701.05022","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4209f12be30f3992265ce8c0dc42b89089b1967f3951c6e60ced2afb607e7bfa","sha256:678eedfa01b33c7dd33b7bf4f420613194f5cf1c75bb8ec43395e7945c40cfde"],"state_sha256":"006c25900f53ec24d1f5b609aa920ba40d68e632fcc55c71a066c8f2763e5301"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xV3UNMx6hN0pj1gOvbf47V9fUpojabk9rktvGSzn+mpX8eDDtuGkKaRv2w4iF8dy41ekkehZxT5TsWkMftIZDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T10:04:04.437358Z","bundle_sha256":"fec24f620649f02b325a1336f8edae8b5a8cf4b1724028092eadc95d56275af4"}}