{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:G3YOCV4756MPZQILTV4OMK7FMA","short_pith_number":"pith:G3YOCV47","canonical_record":{"source":{"id":"1203.3448","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2012-03-15T19:18:46Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"759682473861b0c7580e16c10da9b7d2b1685f260f10016fad770d629d53554a","abstract_canon_sha256":"4f51cda7e8c406b39d407eb8cc960eba7bea1546ae9b95a85432882f5f4ca4f8"},"schema_version":"1.0"},"canonical_sha256":"36f0e1579fef98fcc10b9d78e62be56010bc1fc4f98692929732455dc8ff4de3","source":{"kind":"arxiv","id":"1203.3448","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.3448","created_at":"2026-05-18T01:58:08Z"},{"alias_kind":"arxiv_version","alias_value":"1203.3448v2","created_at":"2026-05-18T01:58:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.3448","created_at":"2026-05-18T01:58:08Z"},{"alias_kind":"pith_short_12","alias_value":"G3YOCV4756MP","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_16","alias_value":"G3YOCV4756MPZQIL","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_8","alias_value":"G3YOCV47","created_at":"2026-05-18T12:27:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:G3YOCV4756MPZQILTV4OMK7FMA","target":"record","payload":{"canonical_record":{"source":{"id":"1203.3448","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2012-03-15T19:18:46Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"759682473861b0c7580e16c10da9b7d2b1685f260f10016fad770d629d53554a","abstract_canon_sha256":"4f51cda7e8c406b39d407eb8cc960eba7bea1546ae9b95a85432882f5f4ca4f8"},"schema_version":"1.0"},"canonical_sha256":"36f0e1579fef98fcc10b9d78e62be56010bc1fc4f98692929732455dc8ff4de3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:08.310049Z","signature_b64":"5+qkl5ezUXPqnyFg7bsgWglVLhsFQeDHBOlaI1HDoYIDveBykWEJAtr4xduVXt0O+pER6/fY4CvSBmwNIjZjCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"36f0e1579fef98fcc10b9d78e62be56010bc1fc4f98692929732455dc8ff4de3","last_reissued_at":"2026-05-18T01:58:08.309403Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:08.309403Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1203.3448","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:58:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yAKHNlracOUEWiGcV94ddUypxDoCGAeB9dYhbA04TEltsGw8HEsW/SjWIgWNwmiE9nfT8ACFwDCd/sKUAVpMAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T17:26:29.989963Z"},"content_sha256":"e967a0070952c137750d57eef5e97a1d27eb3c432164797273fdda8240f5db7a","schema_version":"1.0","event_id":"sha256:e967a0070952c137750d57eef5e97a1d27eb3c432164797273fdda8240f5db7a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:G3YOCV4756MPZQILTV4OMK7FMA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Diffusion Enhancement in Core-softened fluid confined in nanotubes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.stat-mech"],"primary_cat":"cond-mat.soft","authors_text":"Alan B. de Oliveira, Alexandre Diehl, Jos\\'e R. Bordin, Marcia C. Barbosa","submitted_at":"2012-03-15T19:18:46Z","abstract_excerpt":"We study the effect of confinement in the dynamical behavior of a core-softened fluid. The fluid is modeled as a two length scales potential. This potential in the bulk reproduces the anomalous behavior observed in the density and in the diffusion of liquid water. A series of $NpT$ Molecular Dynamics simulations for this two length scales fluid confined in a nanotube were performed. We obtain that the diffusion coefficient increases with the increase of the nanotube radius for wide channels as expected for normal fluids. However, for narrow channels, the confinement shows an enhancement in the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.3448","kind":"arxiv","version":2},"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":"2026-05-18T01:58:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wACEXvBOuz8oMsgEi2Ge2X6Va6hRPjai4DTCYlCUiFAu77Q1unYrhHKLQE2zF3ddke7aYJ4cG2EDDBALd8XMAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T17:26:29.990620Z"},"content_sha256":"f1ac686c5962f9e8c73c1802a0747ed6facfb7e04e831edc2f36dbcb44df7f12","schema_version":"1.0","event_id":"sha256:f1ac686c5962f9e8c73c1802a0747ed6facfb7e04e831edc2f36dbcb44df7f12"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/G3YOCV4756MPZQILTV4OMK7FMA/bundle.json","state_url":"https://pith.science/pith/G3YOCV4756MPZQILTV4OMK7FMA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/G3YOCV4756MPZQILTV4OMK7FMA/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":"2026-05-29T17:26:29Z","links":{"resolver":"https://pith.science/pith/G3YOCV4756MPZQILTV4OMK7FMA","bundle":"https://pith.science/pith/G3YOCV4756MPZQILTV4OMK7FMA/bundle.json","state":"https://pith.science/pith/G3YOCV4756MPZQILTV4OMK7FMA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/G3YOCV4756MPZQILTV4OMK7FMA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:G3YOCV4756MPZQILTV4OMK7FMA","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":"4f51cda7e8c406b39d407eb8cc960eba7bea1546ae9b95a85432882f5f4ca4f8","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2012-03-15T19:18:46Z","title_canon_sha256":"759682473861b0c7580e16c10da9b7d2b1685f260f10016fad770d629d53554a"},"schema_version":"1.0","source":{"id":"1203.3448","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.3448","created_at":"2026-05-18T01:58:08Z"},{"alias_kind":"arxiv_version","alias_value":"1203.3448v2","created_at":"2026-05-18T01:58:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.3448","created_at":"2026-05-18T01:58:08Z"},{"alias_kind":"pith_short_12","alias_value":"G3YOCV4756MP","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_16","alias_value":"G3YOCV4756MPZQIL","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_8","alias_value":"G3YOCV47","created_at":"2026-05-18T12:27:06Z"}],"graph_snapshots":[{"event_id":"sha256:f1ac686c5962f9e8c73c1802a0747ed6facfb7e04e831edc2f36dbcb44df7f12","target":"graph","created_at":"2026-05-18T01:58:08Z","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 effect of confinement in the dynamical behavior of a core-softened fluid. The fluid is modeled as a two length scales potential. This potential in the bulk reproduces the anomalous behavior observed in the density and in the diffusion of liquid water. A series of $NpT$ Molecular Dynamics simulations for this two length scales fluid confined in a nanotube were performed. We obtain that the diffusion coefficient increases with the increase of the nanotube radius for wide channels as expected for normal fluids. However, for narrow channels, the confinement shows an enhancement in the","authors_text":"Alan B. de Oliveira, Alexandre Diehl, Jos\\'e R. Bordin, Marcia C. Barbosa","cross_cats":["cond-mat.stat-mech"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2012-03-15T19:18:46Z","title":"Diffusion Enhancement in Core-softened fluid confined in nanotubes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.3448","kind":"arxiv","version":2},"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:e967a0070952c137750d57eef5e97a1d27eb3c432164797273fdda8240f5db7a","target":"record","created_at":"2026-05-18T01:58:08Z","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":"4f51cda7e8c406b39d407eb8cc960eba7bea1546ae9b95a85432882f5f4ca4f8","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2012-03-15T19:18:46Z","title_canon_sha256":"759682473861b0c7580e16c10da9b7d2b1685f260f10016fad770d629d53554a"},"schema_version":"1.0","source":{"id":"1203.3448","kind":"arxiv","version":2}},"canonical_sha256":"36f0e1579fef98fcc10b9d78e62be56010bc1fc4f98692929732455dc8ff4de3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"36f0e1579fef98fcc10b9d78e62be56010bc1fc4f98692929732455dc8ff4de3","first_computed_at":"2026-05-18T01:58:08.309403Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:08.309403Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5+qkl5ezUXPqnyFg7bsgWglVLhsFQeDHBOlaI1HDoYIDveBykWEJAtr4xduVXt0O+pER6/fY4CvSBmwNIjZjCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:08.310049Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.3448","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e967a0070952c137750d57eef5e97a1d27eb3c432164797273fdda8240f5db7a","sha256:f1ac686c5962f9e8c73c1802a0747ed6facfb7e04e831edc2f36dbcb44df7f12"],"state_sha256":"0602d30c8625d08585a58a3f0012642bb87967c39e749203cf2ddbaba8e11fd0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fTStYZvk/r1IW3+SyxxR2AcjeorIOC90HTEoxdg6YJC9JLfwH0KtktsqQ8aIDPMfpCCWaGC429Tua/XsgGl6Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T17:26:29.994230Z","bundle_sha256":"af8655277fb32660b826d43de73892d1a31ff025967101bbc90546b331569e49"}}