{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:HTBY7ZOY25IUTWRMRDDBAMC3BA","short_pith_number":"pith:HTBY7ZOY","canonical_record":{"source":{"id":"cond-mat/0203062","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.soft","submitted_at":"2002-03-04T14:45:49Z","cross_cats_sorted":[],"title_canon_sha256":"a3d1ad98b3bbab25f9b649f11316058455781a527282420241c998475c4d95df","abstract_canon_sha256":"50447031910c9d816d72dca951c3fe3b128452bc84e1d78417f5c555264e8690"},"schema_version":"1.0"},"canonical_sha256":"3cc38fe5d8d75149da2c88c610305b0823e46a3dcaac9eb8d21e52159577b2ca","source":{"kind":"arxiv","id":"cond-mat/0203062","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0203062","created_at":"2026-05-18T03:30:38Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0203062v1","created_at":"2026-05-18T03:30:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0203062","created_at":"2026-05-18T03:30:38Z"},{"alias_kind":"pith_short_12","alias_value":"HTBY7ZOY25IU","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"HTBY7ZOY25IUTWRM","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"HTBY7ZOY","created_at":"2026-05-18T12:25:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:HTBY7ZOY25IUTWRMRDDBAMC3BA","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0203062","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.soft","submitted_at":"2002-03-04T14:45:49Z","cross_cats_sorted":[],"title_canon_sha256":"a3d1ad98b3bbab25f9b649f11316058455781a527282420241c998475c4d95df","abstract_canon_sha256":"50447031910c9d816d72dca951c3fe3b128452bc84e1d78417f5c555264e8690"},"schema_version":"1.0"},"canonical_sha256":"3cc38fe5d8d75149da2c88c610305b0823e46a3dcaac9eb8d21e52159577b2ca","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:30:38.680337Z","signature_b64":"kxRGpZkppt13yHSAqCWwIb1G2owgHNBgsiNhPtMnonnuFzGA3rK3KkS70jXTwbF6N2A6AV5ln5QxjIAv1OD8DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3cc38fe5d8d75149da2c88c610305b0823e46a3dcaac9eb8d21e52159577b2ca","last_reissued_at":"2026-05-18T03:30:38.679382Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:30:38.679382Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0203062","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":"2026-05-18T03:30:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lUZCmOYzjX0/4KMIHM4qg//IC4sWQn4PAx4vxBVcd0ZqZDI/6zCtz46Df77rb1F6dI61wmp6MU6ntL0dLjE3BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T23:58:00.681477Z"},"content_sha256":"d4b73b0d7891bd9f91d218ae9158e7fc41b0bbb68b7b24e46ba980c5cba5452d","schema_version":"1.0","event_id":"sha256:d4b73b0d7891bd9f91d218ae9158e7fc41b0bbb68b7b24e46ba980c5cba5452d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:HTBY7ZOY25IUTWRMRDDBAMC3BA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Computer simulation of topological defects around a colloidal particle or droplet dispersed in a nematic host","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"D. Andrienko, G. Germano, M. P. Allen","submitted_at":"2002-03-04T14:45:49Z","abstract_excerpt":"We use molecular dynamics to study the ordering of a nematic liquid crystal around a spherical particle or droplet. Homeotropic boundary conditions and strong anchoring create a hedgehog director configuration on the particle surface and in its vicinity; this topological defect is cancelled by nearby defect structures in the surrounding liquid crystal, so as to give a uniform director field at large distances. We observe three defect structures for different particle sizes: a quadrupolar one with a ring defect surrounding the particle in the equatorial plane; a dipolar one with a satellite def"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0203062","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":"2026-05-18T03:30:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q5AdUX/l56QQnJtlbvVxB7LgNvFwXj25TLlAyQvWEIQ2kVkF5yFRZL2HP1oG6ClLLouY/iMgYgWd/+dvAAEkCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T23:58:00.682126Z"},"content_sha256":"ff2a13f9fcd5cdfc381b89b5e1c3de91f1b2f4b9caa2fe89ca347e63bedf93f6","schema_version":"1.0","event_id":"sha256:ff2a13f9fcd5cdfc381b89b5e1c3de91f1b2f4b9caa2fe89ca347e63bedf93f6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HTBY7ZOY25IUTWRMRDDBAMC3BA/bundle.json","state_url":"https://pith.science/pith/HTBY7ZOY25IUTWRMRDDBAMC3BA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HTBY7ZOY25IUTWRMRDDBAMC3BA/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":"2026-05-26T23:58:00Z","links":{"resolver":"https://pith.science/pith/HTBY7ZOY25IUTWRMRDDBAMC3BA","bundle":"https://pith.science/pith/HTBY7ZOY25IUTWRMRDDBAMC3BA/bundle.json","state":"https://pith.science/pith/HTBY7ZOY25IUTWRMRDDBAMC3BA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HTBY7ZOY25IUTWRMRDDBAMC3BA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:HTBY7ZOY25IUTWRMRDDBAMC3BA","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":"50447031910c9d816d72dca951c3fe3b128452bc84e1d78417f5c555264e8690","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.soft","submitted_at":"2002-03-04T14:45:49Z","title_canon_sha256":"a3d1ad98b3bbab25f9b649f11316058455781a527282420241c998475c4d95df"},"schema_version":"1.0","source":{"id":"cond-mat/0203062","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0203062","created_at":"2026-05-18T03:30:38Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0203062v1","created_at":"2026-05-18T03:30:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0203062","created_at":"2026-05-18T03:30:38Z"},{"alias_kind":"pith_short_12","alias_value":"HTBY7ZOY25IU","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"HTBY7ZOY25IUTWRM","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"HTBY7ZOY","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:ff2a13f9fcd5cdfc381b89b5e1c3de91f1b2f4b9caa2fe89ca347e63bedf93f6","target":"graph","created_at":"2026-05-18T03:30:38Z","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 use molecular dynamics to study the ordering of a nematic liquid crystal around a spherical particle or droplet. Homeotropic boundary conditions and strong anchoring create a hedgehog director configuration on the particle surface and in its vicinity; this topological defect is cancelled by nearby defect structures in the surrounding liquid crystal, so as to give a uniform director field at large distances. We observe three defect structures for different particle sizes: a quadrupolar one with a ring defect surrounding the particle in the equatorial plane; a dipolar one with a satellite def","authors_text":"D. Andrienko, G. Germano, M. P. Allen","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.soft","submitted_at":"2002-03-04T14:45:49Z","title":"Computer simulation of topological defects around a colloidal particle or droplet dispersed in a nematic host"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0203062","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:d4b73b0d7891bd9f91d218ae9158e7fc41b0bbb68b7b24e46ba980c5cba5452d","target":"record","created_at":"2026-05-18T03:30:38Z","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":"50447031910c9d816d72dca951c3fe3b128452bc84e1d78417f5c555264e8690","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.soft","submitted_at":"2002-03-04T14:45:49Z","title_canon_sha256":"a3d1ad98b3bbab25f9b649f11316058455781a527282420241c998475c4d95df"},"schema_version":"1.0","source":{"id":"cond-mat/0203062","kind":"arxiv","version":1}},"canonical_sha256":"3cc38fe5d8d75149da2c88c610305b0823e46a3dcaac9eb8d21e52159577b2ca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3cc38fe5d8d75149da2c88c610305b0823e46a3dcaac9eb8d21e52159577b2ca","first_computed_at":"2026-05-18T03:30:38.679382Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:30:38.679382Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kxRGpZkppt13yHSAqCWwIb1G2owgHNBgsiNhPtMnonnuFzGA3rK3KkS70jXTwbF6N2A6AV5ln5QxjIAv1OD8DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:30:38.680337Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0203062","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d4b73b0d7891bd9f91d218ae9158e7fc41b0bbb68b7b24e46ba980c5cba5452d","sha256:ff2a13f9fcd5cdfc381b89b5e1c3de91f1b2f4b9caa2fe89ca347e63bedf93f6"],"state_sha256":"b4a71b1b763db63b29280847ff6695ced88aeb8d99863e97fb12ed42839b4a42"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/R3doKEa9OJQfMd3MM3NExnO2oHbrVZjrEwPeiXV62z3+CVK8AMV2ejCxhXZWdsvdiOuIbeVw9/H8e/6V3LvBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T23:58:00.685800Z","bundle_sha256":"2e5aeed06cf03637279e5346d8b4bd74b76b5fe2e8a82cea8e5af622b52732b7"}}