{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:GKX2Y5SPBZESINTLUQI3EM3DBY","short_pith_number":"pith:GKX2Y5SP","canonical_record":{"source":{"id":"1703.03707","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2017-03-10T15:06:42Z","cross_cats_sorted":[],"title_canon_sha256":"8f25926507e4c8f117689bfbf4e8a453b1bc9c89048003c48fdd83cee33730ce","abstract_canon_sha256":"f22a3d979e01da00240980e22fe25d5a9cd35c63ff9b458e11608c48b5450d5a"},"schema_version":"1.0"},"canonical_sha256":"32afac764f0e4924366ba411b233630e004859cda3269154f4dc7dc27be998ad","source":{"kind":"arxiv","id":"1703.03707","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.03707","created_at":"2026-05-18T00:48:56Z"},{"alias_kind":"arxiv_version","alias_value":"1703.03707v1","created_at":"2026-05-18T00:48:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.03707","created_at":"2026-05-18T00:48:56Z"},{"alias_kind":"pith_short_12","alias_value":"GKX2Y5SPBZES","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_16","alias_value":"GKX2Y5SPBZESINTL","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_8","alias_value":"GKX2Y5SP","created_at":"2026-05-18T12:31:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:GKX2Y5SPBZESINTLUQI3EM3DBY","target":"record","payload":{"canonical_record":{"source":{"id":"1703.03707","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2017-03-10T15:06:42Z","cross_cats_sorted":[],"title_canon_sha256":"8f25926507e4c8f117689bfbf4e8a453b1bc9c89048003c48fdd83cee33730ce","abstract_canon_sha256":"f22a3d979e01da00240980e22fe25d5a9cd35c63ff9b458e11608c48b5450d5a"},"schema_version":"1.0"},"canonical_sha256":"32afac764f0e4924366ba411b233630e004859cda3269154f4dc7dc27be998ad","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:48:56.036516Z","signature_b64":"Ei7vt8LYBzAv4IKEZ2LOYeGRJgK/1B6b6OiJCLWGA6g0e63BUXZ5I/71qWdf0TUTPObSTvnPiBoXJJnomuGEAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"32afac764f0e4924366ba411b233630e004859cda3269154f4dc7dc27be998ad","last_reissued_at":"2026-05-18T00:48:56.035475Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:48:56.035475Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1703.03707","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":"2026-05-18T00:48:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xL5c1Tv5eQtkAGHa0GNRZ72VYl7ph4P0t/a6XjzpRvZBR/ARPKXq0HJ281ff84wFKbGwrbmhalGAXRF2HAt3Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T09:21:06.161732Z"},"content_sha256":"41237aed2eacd03a1bb7443a886c28736e43886202b19bd7cec07417c4d377bf","schema_version":"1.0","event_id":"sha256:41237aed2eacd03a1bb7443a886c28736e43886202b19bd7cec07417c4d377bf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:GKX2Y5SPBZESINTLUQI3EM3DBY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Curvature controlled defect dynamics in topological active nematics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Axel Voigt, Christian K\\\"ohler, Francesco Alaimo","submitted_at":"2017-03-10T15:06:42Z","abstract_excerpt":"We study the spatiotemporal patterns that emerge when an active nematic film is topologically constraint. These topological constraints allow to control the non-equilibrium dynamics of the active system. We consider ellipsoidal shapes for which the resulting defects are 1/2 disclinations and analyze the relation between their location and dynamics and local geometric properties of the ellipsoid. We highlight two dynamic modes: a tunable periodic state that oscillates between two defect configurations on a spherical shape and a tunable rotating state for oblate spheroids. We further demonstrate"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.03707","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":"2026-05-18T00:48:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L8ReUt1pKDkNYgQYM/iFn5KigfR89DxCz71tlA4C7ccJd/HuRfyLY1S8zkaY271jx25BuRhkQfLEj2ZVQhr5DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T09:21:06.162075Z"},"content_sha256":"4f1b6f05c627a8a714ebcc4c63a8e491b38907e3aaabee0643b4c3967a7324c9","schema_version":"1.0","event_id":"sha256:4f1b6f05c627a8a714ebcc4c63a8e491b38907e3aaabee0643b4c3967a7324c9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GKX2Y5SPBZESINTLUQI3EM3DBY/bundle.json","state_url":"https://pith.science/pith/GKX2Y5SPBZESINTLUQI3EM3DBY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GKX2Y5SPBZESINTLUQI3EM3DBY/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":"2026-06-05T09:21:06Z","links":{"resolver":"https://pith.science/pith/GKX2Y5SPBZESINTLUQI3EM3DBY","bundle":"https://pith.science/pith/GKX2Y5SPBZESINTLUQI3EM3DBY/bundle.json","state":"https://pith.science/pith/GKX2Y5SPBZESINTLUQI3EM3DBY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GKX2Y5SPBZESINTLUQI3EM3DBY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:GKX2Y5SPBZESINTLUQI3EM3DBY","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":"f22a3d979e01da00240980e22fe25d5a9cd35c63ff9b458e11608c48b5450d5a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2017-03-10T15:06:42Z","title_canon_sha256":"8f25926507e4c8f117689bfbf4e8a453b1bc9c89048003c48fdd83cee33730ce"},"schema_version":"1.0","source":{"id":"1703.03707","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.03707","created_at":"2026-05-18T00:48:56Z"},{"alias_kind":"arxiv_version","alias_value":"1703.03707v1","created_at":"2026-05-18T00:48:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.03707","created_at":"2026-05-18T00:48:56Z"},{"alias_kind":"pith_short_12","alias_value":"GKX2Y5SPBZES","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_16","alias_value":"GKX2Y5SPBZESINTL","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_8","alias_value":"GKX2Y5SP","created_at":"2026-05-18T12:31:18Z"}],"graph_snapshots":[{"event_id":"sha256:4f1b6f05c627a8a714ebcc4c63a8e491b38907e3aaabee0643b4c3967a7324c9","target":"graph","created_at":"2026-05-18T00:48:56Z","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 study the spatiotemporal patterns that emerge when an active nematic film is topologically constraint. These topological constraints allow to control the non-equilibrium dynamics of the active system. We consider ellipsoidal shapes for which the resulting defects are 1/2 disclinations and analyze the relation between their location and dynamics and local geometric properties of the ellipsoid. We highlight two dynamic modes: a tunable periodic state that oscillates between two defect configurations on a spherical shape and a tunable rotating state for oblate spheroids. We further demonstrate","authors_text":"Axel Voigt, Christian K\\\"ohler, Francesco Alaimo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2017-03-10T15:06:42Z","title":"Curvature controlled defect dynamics in topological active nematics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.03707","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":"sha256:41237aed2eacd03a1bb7443a886c28736e43886202b19bd7cec07417c4d377bf","target":"record","created_at":"2026-05-18T00:48:56Z","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":"f22a3d979e01da00240980e22fe25d5a9cd35c63ff9b458e11608c48b5450d5a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2017-03-10T15:06:42Z","title_canon_sha256":"8f25926507e4c8f117689bfbf4e8a453b1bc9c89048003c48fdd83cee33730ce"},"schema_version":"1.0","source":{"id":"1703.03707","kind":"arxiv","version":1}},"canonical_sha256":"32afac764f0e4924366ba411b233630e004859cda3269154f4dc7dc27be998ad","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"32afac764f0e4924366ba411b233630e004859cda3269154f4dc7dc27be998ad","first_computed_at":"2026-05-18T00:48:56.035475Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:48:56.035475Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ei7vt8LYBzAv4IKEZ2LOYeGRJgK/1B6b6OiJCLWGA6g0e63BUXZ5I/71qWdf0TUTPObSTvnPiBoXJJnomuGEAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:48:56.036516Z","signed_message":"canonical_sha256_bytes"},"source_id":"1703.03707","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:41237aed2eacd03a1bb7443a886c28736e43886202b19bd7cec07417c4d377bf","sha256:4f1b6f05c627a8a714ebcc4c63a8e491b38907e3aaabee0643b4c3967a7324c9"],"state_sha256":"3c1ffdc2a4e6dd822cb1d5dcce1de99e646e5a3b63255ec4f4af8fcf829d3e3a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yoRhpSvuNScx8wVZWrrjnCRpkQOr5AxVapEupWZnWQvFI3Scjv4jPKl/O7QGskXBXrsyoO89Psou+JR+frzaAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T09:21:06.163968Z","bundle_sha256":"4354618e9f5003dec1cea9828e09bea7aa785c18f65d0dd8516ba0bcb572b480"}}