{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:BLILKG7UVGMO3TB2Y34772FYE5","short_pith_number":"pith:BLILKG7U","canonical_record":{"source":{"id":"1307.7684","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2013-07-29T19:03:42Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"60632c01abb128a8d7b5c418b93ecc25865bef81040fbbb015a716c114ed4ddd","abstract_canon_sha256":"60800efb92c79b2cd0bb5f4b44618e95a1675015ea945c72cb33fbe2c96bbcda"},"schema_version":"1.0"},"canonical_sha256":"0ad0b51bf4a998edcc3ac6f9ffe8b82777a86de22ead4848dc292ff3fcb3c044","source":{"kind":"arxiv","id":"1307.7684","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.7684","created_at":"2026-05-18T03:17:15Z"},{"alias_kind":"arxiv_version","alias_value":"1307.7684v1","created_at":"2026-05-18T03:17:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.7684","created_at":"2026-05-18T03:17:15Z"},{"alias_kind":"pith_short_12","alias_value":"BLILKG7UVGMO","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"BLILKG7UVGMO3TB2","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"BLILKG7U","created_at":"2026-05-18T12:27:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:BLILKG7UVGMO3TB2Y34772FYE5","target":"record","payload":{"canonical_record":{"source":{"id":"1307.7684","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2013-07-29T19:03:42Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"60632c01abb128a8d7b5c418b93ecc25865bef81040fbbb015a716c114ed4ddd","abstract_canon_sha256":"60800efb92c79b2cd0bb5f4b44618e95a1675015ea945c72cb33fbe2c96bbcda"},"schema_version":"1.0"},"canonical_sha256":"0ad0b51bf4a998edcc3ac6f9ffe8b82777a86de22ead4848dc292ff3fcb3c044","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:17:15.120865Z","signature_b64":"3cwqVpm4nQjhPLbVimT1vtSC7plKrMG8MRZjAaFWQL3NcpRFFWMbZEQCJ4kqDowF3ImLKLLCAiexuOVVD2GcAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0ad0b51bf4a998edcc3ac6f9ffe8b82777a86de22ead4848dc292ff3fcb3c044","last_reissued_at":"2026-05-18T03:17:15.120201Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:17:15.120201Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1307.7684","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":"2026-05-18T03:17:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EhKRfEbmKgmxxKiiL+E/5OY0MORd41hnImZkZuGc7wdCE2BrhmxUwe6j82LIov4Eij+xuW3f7J7HsSId1JMRBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T17:24:01.227148Z"},"content_sha256":"7cd68cd858bedf0e830eac84d685d53ee324e316f72122a8f4eccfd49633c323","schema_version":"1.0","event_id":"sha256:7cd68cd858bedf0e830eac84d685d53ee324e316f72122a8f4eccfd49633c323"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:BLILKG7UVGMO3TB2Y34772FYE5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Unraveling quantum mechanical effects in water using isotopic fractionation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.stat-mech"],"primary_cat":"physics.chem-ph","authors_text":"B. J. Berne, Thomas E. Markland","submitted_at":"2013-07-29T19:03:42Z","abstract_excerpt":"When two phases of water are at equilibrium, the ratio of hydrogen isotopes in each is slightly altered due to their different phase affinities. This isotopic fractionation process can be utilized to analyze water's movement in the world's climate. Here we show that equilibrium fractionation ratios, an entirely quantum mechanical property, also provide a sensitive probe to assess the magnitude of nuclear quantum fluctuations in water. By comparing the predictions of a series of water models, we show that those describing the OH chemical bond as rigid or harmonic greatly over-predict the magnit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.7684","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":"2026-05-18T03:17:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E6ccU31bvQtcSy3oerkPa7YxsD82QG7hzbYQhos8D1kNfmsrt/II06ySrAdxYtCRQGyDVmQdHUG53K1mugydDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T17:24:01.227597Z"},"content_sha256":"ace7e3114e46525c5724c7c313de0d26667f857f3a9c079e2206b4093a823a51","schema_version":"1.0","event_id":"sha256:ace7e3114e46525c5724c7c313de0d26667f857f3a9c079e2206b4093a823a51"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BLILKG7UVGMO3TB2Y34772FYE5/bundle.json","state_url":"https://pith.science/pith/BLILKG7UVGMO3TB2Y34772FYE5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BLILKG7UVGMO3TB2Y34772FYE5/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":"2026-06-11T17:24:01Z","links":{"resolver":"https://pith.science/pith/BLILKG7UVGMO3TB2Y34772FYE5","bundle":"https://pith.science/pith/BLILKG7UVGMO3TB2Y34772FYE5/bundle.json","state":"https://pith.science/pith/BLILKG7UVGMO3TB2Y34772FYE5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BLILKG7UVGMO3TB2Y34772FYE5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:BLILKG7UVGMO3TB2Y34772FYE5","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":"60800efb92c79b2cd0bb5f4b44618e95a1675015ea945c72cb33fbe2c96bbcda","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2013-07-29T19:03:42Z","title_canon_sha256":"60632c01abb128a8d7b5c418b93ecc25865bef81040fbbb015a716c114ed4ddd"},"schema_version":"1.0","source":{"id":"1307.7684","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.7684","created_at":"2026-05-18T03:17:15Z"},{"alias_kind":"arxiv_version","alias_value":"1307.7684v1","created_at":"2026-05-18T03:17:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.7684","created_at":"2026-05-18T03:17:15Z"},{"alias_kind":"pith_short_12","alias_value":"BLILKG7UVGMO","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"BLILKG7UVGMO3TB2","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"BLILKG7U","created_at":"2026-05-18T12:27:38Z"}],"graph_snapshots":[{"event_id":"sha256:ace7e3114e46525c5724c7c313de0d26667f857f3a9c079e2206b4093a823a51","target":"graph","created_at":"2026-05-18T03:17:15Z","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":"When two phases of water are at equilibrium, the ratio of hydrogen isotopes in each is slightly altered due to their different phase affinities. This isotopic fractionation process can be utilized to analyze water's movement in the world's climate. Here we show that equilibrium fractionation ratios, an entirely quantum mechanical property, also provide a sensitive probe to assess the magnitude of nuclear quantum fluctuations in water. By comparing the predictions of a series of water models, we show that those describing the OH chemical bond as rigid or harmonic greatly over-predict the magnit","authors_text":"B. J. Berne, Thomas E. Markland","cross_cats":["cond-mat.stat-mech"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2013-07-29T19:03:42Z","title":"Unraveling quantum mechanical effects in water using isotopic fractionation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.7684","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":"sha256:7cd68cd858bedf0e830eac84d685d53ee324e316f72122a8f4eccfd49633c323","target":"record","created_at":"2026-05-18T03:17:15Z","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":"60800efb92c79b2cd0bb5f4b44618e95a1675015ea945c72cb33fbe2c96bbcda","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2013-07-29T19:03:42Z","title_canon_sha256":"60632c01abb128a8d7b5c418b93ecc25865bef81040fbbb015a716c114ed4ddd"},"schema_version":"1.0","source":{"id":"1307.7684","kind":"arxiv","version":1}},"canonical_sha256":"0ad0b51bf4a998edcc3ac6f9ffe8b82777a86de22ead4848dc292ff3fcb3c044","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0ad0b51bf4a998edcc3ac6f9ffe8b82777a86de22ead4848dc292ff3fcb3c044","first_computed_at":"2026-05-18T03:17:15.120201Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:17:15.120201Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3cwqVpm4nQjhPLbVimT1vtSC7plKrMG8MRZjAaFWQL3NcpRFFWMbZEQCJ4kqDowF3ImLKLLCAiexuOVVD2GcAg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:17:15.120865Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.7684","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7cd68cd858bedf0e830eac84d685d53ee324e316f72122a8f4eccfd49633c323","sha256:ace7e3114e46525c5724c7c313de0d26667f857f3a9c079e2206b4093a823a51"],"state_sha256":"6125c43f1904390aaadba3753c2bad8149b874580950c801df476b1aeba62579"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G+TQYvJdOyjPbMjz4qwHIzc44Kd+VHOkBhzd6iw+LDqfRtQSrhDPmaaAvi+jKS1E14UvKlJfxT1llcPGHH6vDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T17:24:01.264659Z","bundle_sha256":"56c42ce8a433ac786e2476de91cfa49ca165d8934c14c8257b0e454bdfb14365"}}