{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:YIH4HA25QDHXUDNGMQTJTZAGOJ","short_pith_number":"pith:YIH4HA25","canonical_record":{"source":{"id":"0807.1852","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2008-07-11T13:25:24Z","cross_cats_sorted":[],"title_canon_sha256":"33ed000651b7a5736996a5694006c8041201c29186c41d1955232167ddbb31ef","abstract_canon_sha256":"c67c40847d33c6b67966efe483ad09397110a5dec32ebe43c1367ef93ed46f25"},"schema_version":"1.0"},"canonical_sha256":"c20fc3835d80cf7a0da6642699e406727fad8f41c5fafe473e51f246ed3542dd","source":{"kind":"arxiv","id":"0807.1852","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0807.1852","created_at":"2026-05-18T04:41:26Z"},{"alias_kind":"arxiv_version","alias_value":"0807.1852v1","created_at":"2026-05-18T04:41:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0807.1852","created_at":"2026-05-18T04:41:26Z"},{"alias_kind":"pith_short_12","alias_value":"YIH4HA25QDHX","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"YIH4HA25QDHXUDNG","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"YIH4HA25","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:YIH4HA25QDHXUDNGMQTJTZAGOJ","target":"record","payload":{"canonical_record":{"source":{"id":"0807.1852","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2008-07-11T13:25:24Z","cross_cats_sorted":[],"title_canon_sha256":"33ed000651b7a5736996a5694006c8041201c29186c41d1955232167ddbb31ef","abstract_canon_sha256":"c67c40847d33c6b67966efe483ad09397110a5dec32ebe43c1367ef93ed46f25"},"schema_version":"1.0"},"canonical_sha256":"c20fc3835d80cf7a0da6642699e406727fad8f41c5fafe473e51f246ed3542dd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:41:26.311293Z","signature_b64":"i7QGyUMA1dsDF4saqJv2O1ikAujrgINKmKBeCD/cHfFwngpJUxz8RE4kZazpmOdF3Jjw9biIGrrNT4c68jzZCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c20fc3835d80cf7a0da6642699e406727fad8f41c5fafe473e51f246ed3542dd","last_reissued_at":"2026-05-18T04:41:26.310707Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:41:26.310707Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0807.1852","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":"2026-05-18T04:41:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6veyQeTxSqN+9xrtoKEIFlpmlBqT+3Jv/DqMKRBjKQX+YlWVjzuzIwfZYAZ6IizxYYUdCNBjx5Koj867JhEGCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T20:16:19.758688Z"},"content_sha256":"864d9e7c03a391b0bcf5e0099fe992776002abfb6b64de0a2aa71c8ddc2be399","schema_version":"1.0","event_id":"sha256:864d9e7c03a391b0bcf5e0099fe992776002abfb6b64de0a2aa71c8ddc2be399"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:YIH4HA25QDHXUDNGMQTJTZAGOJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Effective interactions of colloids on nematic films","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"A. Dominguez, M. Oettel, M. Tasinkevych, S. Dietrich","submitted_at":"2008-07-11T13:25:24Z","abstract_excerpt":"The elastic and capillary interactions between a pair of colloidal particles trapped on top of a nematic film are studied theoretically for large separations $d$. The elastic interaction is repulsive and of quadrupolar type, varying as $d^{-5}$. For macroscopically thick films, the capillary interaction is likewise repulsive and proportional to $d^{-5}$ as a consequence of mechanical isolation of the system comprised of the colloids and the interface. A finite film thickness introduces a nonvanishing force on the system (exerted by the substrate supporting the film) leading to logarithmically "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0807.1852","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":"2026-05-18T04:41:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cZuRx4sOBThSV5tg2GFigPmE3F9mLWgsAS0qhyhA5ZtidPP/c9FRBsIteMlET1bJgf3RB+mVM98sCAxYf1mmCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T20:16:19.759445Z"},"content_sha256":"5641e9f9c3bc272d9dd9c7d1973c5a8722f6a124f059a1283336471cd9a9a1ac","schema_version":"1.0","event_id":"sha256:5641e9f9c3bc272d9dd9c7d1973c5a8722f6a124f059a1283336471cd9a9a1ac"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YIH4HA25QDHXUDNGMQTJTZAGOJ/bundle.json","state_url":"https://pith.science/pith/YIH4HA25QDHXUDNGMQTJTZAGOJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YIH4HA25QDHXUDNGMQTJTZAGOJ/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":"2026-05-28T20:16:19Z","links":{"resolver":"https://pith.science/pith/YIH4HA25QDHXUDNGMQTJTZAGOJ","bundle":"https://pith.science/pith/YIH4HA25QDHXUDNGMQTJTZAGOJ/bundle.json","state":"https://pith.science/pith/YIH4HA25QDHXUDNGMQTJTZAGOJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YIH4HA25QDHXUDNGMQTJTZAGOJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:YIH4HA25QDHXUDNGMQTJTZAGOJ","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":"c67c40847d33c6b67966efe483ad09397110a5dec32ebe43c1367ef93ed46f25","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2008-07-11T13:25:24Z","title_canon_sha256":"33ed000651b7a5736996a5694006c8041201c29186c41d1955232167ddbb31ef"},"schema_version":"1.0","source":{"id":"0807.1852","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0807.1852","created_at":"2026-05-18T04:41:26Z"},{"alias_kind":"arxiv_version","alias_value":"0807.1852v1","created_at":"2026-05-18T04:41:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0807.1852","created_at":"2026-05-18T04:41:26Z"},{"alias_kind":"pith_short_12","alias_value":"YIH4HA25QDHX","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"YIH4HA25QDHXUDNG","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"YIH4HA25","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:5641e9f9c3bc272d9dd9c7d1973c5a8722f6a124f059a1283336471cd9a9a1ac","target":"graph","created_at":"2026-05-18T04:41:26Z","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":"The elastic and capillary interactions between a pair of colloidal particles trapped on top of a nematic film are studied theoretically for large separations $d$. The elastic interaction is repulsive and of quadrupolar type, varying as $d^{-5}$. For macroscopically thick films, the capillary interaction is likewise repulsive and proportional to $d^{-5}$ as a consequence of mechanical isolation of the system comprised of the colloids and the interface. A finite film thickness introduces a nonvanishing force on the system (exerted by the substrate supporting the film) leading to logarithmically ","authors_text":"A. Dominguez, M. Oettel, M. Tasinkevych, S. Dietrich","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2008-07-11T13:25:24Z","title":"Effective interactions of colloids on nematic films"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0807.1852","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":"sha256:864d9e7c03a391b0bcf5e0099fe992776002abfb6b64de0a2aa71c8ddc2be399","target":"record","created_at":"2026-05-18T04:41:26Z","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":"c67c40847d33c6b67966efe483ad09397110a5dec32ebe43c1367ef93ed46f25","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2008-07-11T13:25:24Z","title_canon_sha256":"33ed000651b7a5736996a5694006c8041201c29186c41d1955232167ddbb31ef"},"schema_version":"1.0","source":{"id":"0807.1852","kind":"arxiv","version":1}},"canonical_sha256":"c20fc3835d80cf7a0da6642699e406727fad8f41c5fafe473e51f246ed3542dd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c20fc3835d80cf7a0da6642699e406727fad8f41c5fafe473e51f246ed3542dd","first_computed_at":"2026-05-18T04:41:26.310707Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:41:26.310707Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"i7QGyUMA1dsDF4saqJv2O1ikAujrgINKmKBeCD/cHfFwngpJUxz8RE4kZazpmOdF3Jjw9biIGrrNT4c68jzZCg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:41:26.311293Z","signed_message":"canonical_sha256_bytes"},"source_id":"0807.1852","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:864d9e7c03a391b0bcf5e0099fe992776002abfb6b64de0a2aa71c8ddc2be399","sha256:5641e9f9c3bc272d9dd9c7d1973c5a8722f6a124f059a1283336471cd9a9a1ac"],"state_sha256":"a9b1d3937ccc0172fe7bf31b3265ff475774e1a1b491386c49dc83356a712948"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Kzd1bHTX62EYNT/qfQ0EEhGzpJINEM0PGv1NBXGxnqCxNF7YwCEwCICyuJISpgOdWR14FCN5UiSx2mPieCmyDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T20:16:19.763308Z","bundle_sha256":"8a6f3d928615f9020d09c8d2fb42b5dca9118e7819aaddcc1d12b07238a0fbe6"}}