{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:H3ZD2EOXS2AQ6ZFWJHP2HEQB5S","short_pith_number":"pith:H3ZD2EOX","canonical_record":{"source":{"id":"0812.0796","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2008-12-03T20:17:51Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"648d6adbc597f98afa443290189a824316d14c3defe7496fee0e312e94f174db","abstract_canon_sha256":"05c9d7944331abfd8173ce33e2e78d2d8338d766dc257acd19da24655074d800"},"schema_version":"1.0"},"canonical_sha256":"3ef23d11d796810f64b649dfa39201ecaf975f4dcb8a5921f8bcf19d156c0a9d","source":{"kind":"arxiv","id":"0812.0796","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0812.0796","created_at":"2026-05-18T02:15:12Z"},{"alias_kind":"arxiv_version","alias_value":"0812.0796v2","created_at":"2026-05-18T02:15:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0812.0796","created_at":"2026-05-18T02:15:12Z"},{"alias_kind":"pith_short_12","alias_value":"H3ZD2EOXS2AQ","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"H3ZD2EOXS2AQ6ZFW","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"H3ZD2EOX","created_at":"2026-05-18T12:25:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:H3ZD2EOXS2AQ6ZFWJHP2HEQB5S","target":"record","payload":{"canonical_record":{"source":{"id":"0812.0796","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2008-12-03T20:17:51Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"648d6adbc597f98afa443290189a824316d14c3defe7496fee0e312e94f174db","abstract_canon_sha256":"05c9d7944331abfd8173ce33e2e78d2d8338d766dc257acd19da24655074d800"},"schema_version":"1.0"},"canonical_sha256":"3ef23d11d796810f64b649dfa39201ecaf975f4dcb8a5921f8bcf19d156c0a9d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:15:12.013268Z","signature_b64":"EVIaiv9fbusXRH6bc3OMTXqWkbkZI7gogK7sXdxoBSTCX41YJ3vR/u/mywcLB7dh0M4zeiwgpmTqKe5vmibyAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3ef23d11d796810f64b649dfa39201ecaf975f4dcb8a5921f8bcf19d156c0a9d","last_reissued_at":"2026-05-18T02:15:12.012567Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:15:12.012567Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0812.0796","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":"2026-05-18T02:15:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NaUIA8Tt3M+sBPguh9dEJd/Gs1Gjo4h3yNHtClNkfba9EjqCN5tpzjTqFWMZIrBg0xJL0h67Hqm23PJcABlXCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T15:39:55.861215Z"},"content_sha256":"8c88a108e37cfa230a5e9fa7afd8da6388957ef6f0bfd8a0516c62d0377f7131","schema_version":"1.0","event_id":"sha256:8c88a108e37cfa230a5e9fa7afd8da6388957ef6f0bfd8a0516c62d0377f7131"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:H3ZD2EOXS2AQ6ZFWJHP2HEQB5S","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Surface Induced Crystallization in Supercooled Tetrahedral Liquids","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.stat-mech","authors_text":"D. Donadio, G. Galli, L. M. Ghiringhelli, T. Li","submitted_at":"2008-12-03T20:17:51Z","abstract_excerpt":"Freezing is a fundamental physical phenomenon that has been studied over many decades; yet the role played by surfaces in determining nucleation has remained elusive. Here we report direct computational evidence of surface induced nucleation in supercooled systems with a negative slope of their melting line (dP/dT < 0). This unexpected result is related to the density decrease occurring upon crystallization, and to surface tension facilitating the initial nucleus formation. Our findings support the hypothesis of surface induced crystallization of ice in the atmosphere, and provide insight, at "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0812.0796","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":"2026-05-18T02:15:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cl8ZiUTxfQwbsvXxqaqCgyVQuci2l6xEvnwpFXZa4+tLG4ahgdqGp8z/94Qv7HO49YNY8ymVF9d7bkd2c4iZCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T15:39:55.861857Z"},"content_sha256":"3935376cd812a534d66fbb5bf1cd22f68e61d6dcc93c2d9ebea4408b05cf066b","schema_version":"1.0","event_id":"sha256:3935376cd812a534d66fbb5bf1cd22f68e61d6dcc93c2d9ebea4408b05cf066b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/H3ZD2EOXS2AQ6ZFWJHP2HEQB5S/bundle.json","state_url":"https://pith.science/pith/H3ZD2EOXS2AQ6ZFWJHP2HEQB5S/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/H3ZD2EOXS2AQ6ZFWJHP2HEQB5S/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":"2026-06-06T15:39:55Z","links":{"resolver":"https://pith.science/pith/H3ZD2EOXS2AQ6ZFWJHP2HEQB5S","bundle":"https://pith.science/pith/H3ZD2EOXS2AQ6ZFWJHP2HEQB5S/bundle.json","state":"https://pith.science/pith/H3ZD2EOXS2AQ6ZFWJHP2HEQB5S/state.json","well_known_bundle":"https://pith.science/.well-known/pith/H3ZD2EOXS2AQ6ZFWJHP2HEQB5S/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:H3ZD2EOXS2AQ6ZFWJHP2HEQB5S","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":"05c9d7944331abfd8173ce33e2e78d2d8338d766dc257acd19da24655074d800","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2008-12-03T20:17:51Z","title_canon_sha256":"648d6adbc597f98afa443290189a824316d14c3defe7496fee0e312e94f174db"},"schema_version":"1.0","source":{"id":"0812.0796","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0812.0796","created_at":"2026-05-18T02:15:12Z"},{"alias_kind":"arxiv_version","alias_value":"0812.0796v2","created_at":"2026-05-18T02:15:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0812.0796","created_at":"2026-05-18T02:15:12Z"},{"alias_kind":"pith_short_12","alias_value":"H3ZD2EOXS2AQ","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"H3ZD2EOXS2AQ6ZFW","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"H3ZD2EOX","created_at":"2026-05-18T12:25:57Z"}],"graph_snapshots":[{"event_id":"sha256:3935376cd812a534d66fbb5bf1cd22f68e61d6dcc93c2d9ebea4408b05cf066b","target":"graph","created_at":"2026-05-18T02:15:12Z","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":"Freezing is a fundamental physical phenomenon that has been studied over many decades; yet the role played by surfaces in determining nucleation has remained elusive. Here we report direct computational evidence of surface induced nucleation in supercooled systems with a negative slope of their melting line (dP/dT < 0). This unexpected result is related to the density decrease occurring upon crystallization, and to surface tension facilitating the initial nucleus formation. Our findings support the hypothesis of surface induced crystallization of ice in the atmosphere, and provide insight, at ","authors_text":"D. Donadio, G. Galli, L. M. Ghiringhelli, T. Li","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2008-12-03T20:17:51Z","title":"Surface Induced Crystallization in Supercooled Tetrahedral Liquids"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0812.0796","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":"sha256:8c88a108e37cfa230a5e9fa7afd8da6388957ef6f0bfd8a0516c62d0377f7131","target":"record","created_at":"2026-05-18T02:15:12Z","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":"05c9d7944331abfd8173ce33e2e78d2d8338d766dc257acd19da24655074d800","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2008-12-03T20:17:51Z","title_canon_sha256":"648d6adbc597f98afa443290189a824316d14c3defe7496fee0e312e94f174db"},"schema_version":"1.0","source":{"id":"0812.0796","kind":"arxiv","version":2}},"canonical_sha256":"3ef23d11d796810f64b649dfa39201ecaf975f4dcb8a5921f8bcf19d156c0a9d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3ef23d11d796810f64b649dfa39201ecaf975f4dcb8a5921f8bcf19d156c0a9d","first_computed_at":"2026-05-18T02:15:12.012567Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:15:12.012567Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"EVIaiv9fbusXRH6bc3OMTXqWkbkZI7gogK7sXdxoBSTCX41YJ3vR/u/mywcLB7dh0M4zeiwgpmTqKe5vmibyAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:15:12.013268Z","signed_message":"canonical_sha256_bytes"},"source_id":"0812.0796","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8c88a108e37cfa230a5e9fa7afd8da6388957ef6f0bfd8a0516c62d0377f7131","sha256:3935376cd812a534d66fbb5bf1cd22f68e61d6dcc93c2d9ebea4408b05cf066b"],"state_sha256":"7e33d9e944502fda4c7a63de49c84c8d1b1665ddbabf9a917861f5b600c2d575"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"op/MsOyJINjPKzkCzuADEdzCpXp/ZfrABMt6cj3d/hF+zk4B8wtPabOmMGoawfem78maQPKXbf8XnhBTLraBDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T15:39:55.865564Z","bundle_sha256":"7c3ab95cd821acce49bb6a7afba60a8263751b4a931a22f07bb2ce14fea0c60a"}}