{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:E4X3IHWSSSKXO6FGTPYTPROXC4","short_pith_number":"pith:E4X3IHWS","canonical_record":{"source":{"id":"1109.3958","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2011-09-19T07:44:25Z","cross_cats_sorted":["cond-mat.soft","physics.chem-ph"],"title_canon_sha256":"65b6c6d72ddb17b860be24cf6a578929e2f6f1d72861366868b7ddd77bb4f5f5","abstract_canon_sha256":"d5801ede88e26b9d4aded0157c4888de7f4ff1edcdd4f712d7c5e79cccce5753"},"schema_version":"1.0"},"canonical_sha256":"272fb41ed294957778a69bf137c5d7173b472df95099513c40956844b5d661b8","source":{"kind":"arxiv","id":"1109.3958","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.3958","created_at":"2026-05-18T04:11:51Z"},{"alias_kind":"arxiv_version","alias_value":"1109.3958v2","created_at":"2026-05-18T04:11:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.3958","created_at":"2026-05-18T04:11:51Z"},{"alias_kind":"pith_short_12","alias_value":"E4X3IHWSSSKX","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_16","alias_value":"E4X3IHWSSSKXO6FG","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_8","alias_value":"E4X3IHWS","created_at":"2026-05-18T12:26:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:E4X3IHWSSSKXO6FGTPYTPROXC4","target":"record","payload":{"canonical_record":{"source":{"id":"1109.3958","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2011-09-19T07:44:25Z","cross_cats_sorted":["cond-mat.soft","physics.chem-ph"],"title_canon_sha256":"65b6c6d72ddb17b860be24cf6a578929e2f6f1d72861366868b7ddd77bb4f5f5","abstract_canon_sha256":"d5801ede88e26b9d4aded0157c4888de7f4ff1edcdd4f712d7c5e79cccce5753"},"schema_version":"1.0"},"canonical_sha256":"272fb41ed294957778a69bf137c5d7173b472df95099513c40956844b5d661b8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:11:51.177143Z","signature_b64":"sHVn8qEgyv7hipE99fBL1aG2E6s5LqZmHJY8oz8mvLeTy2sgHTyPR6uZni+vAMM8ZnRcxMfObHomj+MU0atvAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"272fb41ed294957778a69bf137c5d7173b472df95099513c40956844b5d661b8","last_reissued_at":"2026-05-18T04:11:51.176509Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:11:51.176509Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1109.3958","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":"2026-05-18T04:11:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LNaHXaBjddx3LvGULHuNqCjbHGaYVN0dvpBozdfl3YBbZRbDLnX1XgUsixtxhm+l9FhqbZpBXFt1gm70N6xYCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T18:23:18.362203Z"},"content_sha256":"1bbf69b3956a6bdcfd3134d91f2088b1267044ad480dd1cb0fd29803963aecda","schema_version":"1.0","event_id":"sha256:1bbf69b3956a6bdcfd3134d91f2088b1267044ad480dd1cb0fd29803963aecda"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:E4X3IHWSSSKXO6FGTPYTPROXC4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Hydrogen bond relaxation dynamics and the associated vibronic and volumetric anomalies of H2O upon frozen","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.soft","physics.chem-ph"],"primary_cat":"cond-mat.other","authors_text":"Chang Q. Sun, Jer-lai Kuo, Ji Zhou, Xiaojian Fu, Xi Zhang, Yu Wen, Zexiang Shen","submitted_at":"2011-09-19T07:44:25Z","abstract_excerpt":"A combination of the extended Ice Rule of Pauling, Raman spectroscopy, and molecular dynamics calculations has enabled us to clarify the bonding origin of the anomalous volume expansion, Raman phonon relaxation, and the stiffness and fragility of H2O upon frozen. We found that the initially shorter-and-stronger intramolecular \"H+/p-O2-\" bond follows the regular rule of cooling-contraction while the initially longer-and-weaker intermolecular \"O2- : H+/p\" nonbond turns to be even longer yet stiffer in the \"O2- : H+/p-O2-\" hydrogen-bond of H2O upon frozen, as a consequence of the polarization and"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.3958","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":"2026-05-18T04:11:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2f9sWSnmcFTPWpaHlzISfX9m3UAdgXuCqVfN7gvkjpIOP9wULavqtAC8lrJwPkxv7lz7B3537N6hMnT9bKa3CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T18:23:18.362890Z"},"content_sha256":"2403a49c8eb81628aa09e5b5ef41fa9ab93afa44799d134a3327fb7920085571","schema_version":"1.0","event_id":"sha256:2403a49c8eb81628aa09e5b5ef41fa9ab93afa44799d134a3327fb7920085571"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/E4X3IHWSSSKXO6FGTPYTPROXC4/bundle.json","state_url":"https://pith.science/pith/E4X3IHWSSSKXO6FGTPYTPROXC4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/E4X3IHWSSSKXO6FGTPYTPROXC4/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":"2026-05-31T18:23:18Z","links":{"resolver":"https://pith.science/pith/E4X3IHWSSSKXO6FGTPYTPROXC4","bundle":"https://pith.science/pith/E4X3IHWSSSKXO6FGTPYTPROXC4/bundle.json","state":"https://pith.science/pith/E4X3IHWSSSKXO6FGTPYTPROXC4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/E4X3IHWSSSKXO6FGTPYTPROXC4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:E4X3IHWSSSKXO6FGTPYTPROXC4","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":"d5801ede88e26b9d4aded0157c4888de7f4ff1edcdd4f712d7c5e79cccce5753","cross_cats_sorted":["cond-mat.soft","physics.chem-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2011-09-19T07:44:25Z","title_canon_sha256":"65b6c6d72ddb17b860be24cf6a578929e2f6f1d72861366868b7ddd77bb4f5f5"},"schema_version":"1.0","source":{"id":"1109.3958","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.3958","created_at":"2026-05-18T04:11:51Z"},{"alias_kind":"arxiv_version","alias_value":"1109.3958v2","created_at":"2026-05-18T04:11:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.3958","created_at":"2026-05-18T04:11:51Z"},{"alias_kind":"pith_short_12","alias_value":"E4X3IHWSSSKX","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_16","alias_value":"E4X3IHWSSSKXO6FG","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_8","alias_value":"E4X3IHWS","created_at":"2026-05-18T12:26:26Z"}],"graph_snapshots":[{"event_id":"sha256:2403a49c8eb81628aa09e5b5ef41fa9ab93afa44799d134a3327fb7920085571","target":"graph","created_at":"2026-05-18T04:11:51Z","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":"A combination of the extended Ice Rule of Pauling, Raman spectroscopy, and molecular dynamics calculations has enabled us to clarify the bonding origin of the anomalous volume expansion, Raman phonon relaxation, and the stiffness and fragility of H2O upon frozen. We found that the initially shorter-and-stronger intramolecular \"H+/p-O2-\" bond follows the regular rule of cooling-contraction while the initially longer-and-weaker intermolecular \"O2- : H+/p\" nonbond turns to be even longer yet stiffer in the \"O2- : H+/p-O2-\" hydrogen-bond of H2O upon frozen, as a consequence of the polarization and","authors_text":"Chang Q. Sun, Jer-lai Kuo, Ji Zhou, Xiaojian Fu, Xi Zhang, Yu Wen, Zexiang Shen","cross_cats":["cond-mat.soft","physics.chem-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2011-09-19T07:44:25Z","title":"Hydrogen bond relaxation dynamics and the associated vibronic and volumetric anomalies of H2O upon frozen"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.3958","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":"sha256:1bbf69b3956a6bdcfd3134d91f2088b1267044ad480dd1cb0fd29803963aecda","target":"record","created_at":"2026-05-18T04:11:51Z","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":"d5801ede88e26b9d4aded0157c4888de7f4ff1edcdd4f712d7c5e79cccce5753","cross_cats_sorted":["cond-mat.soft","physics.chem-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2011-09-19T07:44:25Z","title_canon_sha256":"65b6c6d72ddb17b860be24cf6a578929e2f6f1d72861366868b7ddd77bb4f5f5"},"schema_version":"1.0","source":{"id":"1109.3958","kind":"arxiv","version":2}},"canonical_sha256":"272fb41ed294957778a69bf137c5d7173b472df95099513c40956844b5d661b8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"272fb41ed294957778a69bf137c5d7173b472df95099513c40956844b5d661b8","first_computed_at":"2026-05-18T04:11:51.176509Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:11:51.176509Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sHVn8qEgyv7hipE99fBL1aG2E6s5LqZmHJY8oz8mvLeTy2sgHTyPR6uZni+vAMM8ZnRcxMfObHomj+MU0atvAw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:11:51.177143Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.3958","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1bbf69b3956a6bdcfd3134d91f2088b1267044ad480dd1cb0fd29803963aecda","sha256:2403a49c8eb81628aa09e5b5ef41fa9ab93afa44799d134a3327fb7920085571"],"state_sha256":"1d27680645068175ec61459aa96958d872ad19252adb1091eb3682f85a358523"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cvcMTqzX++UawmGidKJYFTKI1tIVoDyYU/ImRWN31wetVp8ahLBgCjGuN7rSzcLHJexeLT9YL587vsQNbI8LAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T18:23:18.366565Z","bundle_sha256":"e5be2688ad53468f8982e3990aeb9b41276871f640d7c63916440db0989a94f3"}}