{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:DIU3P3SU6VKDSZCXO7R4HUZGVE","short_pith_number":"pith:DIU3P3SU","canonical_record":{"source":{"id":"2606.23349","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.soft","submitted_at":"2026-06-22T13:52:41Z","cross_cats_sorted":["cond-mat.other","physics.chem-ph","physics.geo-ph"],"title_canon_sha256":"f80b95975752af57b3b3d235857c21502c33f351d3f92ced72112077f4370b12","abstract_canon_sha256":"1b1ccc224ad37ecdca70cb6d8acfea5111f7a6efe9451e37ecaf22e037f34409"},"schema_version":"1.0"},"canonical_sha256":"1a29b7ee54f55439645777e3c3d326a916cccc599f0cecd033d2d19714d52d2e","source":{"kind":"arxiv","id":"2606.23349","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.23349","created_at":"2026-06-23T03:14:17Z"},{"alias_kind":"arxiv_version","alias_value":"2606.23349v1","created_at":"2026-06-23T03:14:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.23349","created_at":"2026-06-23T03:14:17Z"},{"alias_kind":"pith_short_12","alias_value":"DIU3P3SU6VKD","created_at":"2026-06-23T03:14:17Z"},{"alias_kind":"pith_short_16","alias_value":"DIU3P3SU6VKDSZCX","created_at":"2026-06-23T03:14:17Z"},{"alias_kind":"pith_short_8","alias_value":"DIU3P3SU","created_at":"2026-06-23T03:14:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:DIU3P3SU6VKDSZCXO7R4HUZGVE","target":"record","payload":{"canonical_record":{"source":{"id":"2606.23349","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.soft","submitted_at":"2026-06-22T13:52:41Z","cross_cats_sorted":["cond-mat.other","physics.chem-ph","physics.geo-ph"],"title_canon_sha256":"f80b95975752af57b3b3d235857c21502c33f351d3f92ced72112077f4370b12","abstract_canon_sha256":"1b1ccc224ad37ecdca70cb6d8acfea5111f7a6efe9451e37ecaf22e037f34409"},"schema_version":"1.0"},"canonical_sha256":"1a29b7ee54f55439645777e3c3d326a916cccc599f0cecd033d2d19714d52d2e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-23T03:14:17.507389Z","signature_b64":"m3vdRO8UorpkYyPoV/vM6p5uXkR4szNQ+QIQx5kfthK0uI8oTYyEW5T36fomUFV0LPmuqUtEfAEhn3W6CESlAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1a29b7ee54f55439645777e3c3d326a916cccc599f0cecd033d2d19714d52d2e","last_reissued_at":"2026-06-23T03:14:17.506955Z","signature_status":"signed_v1","first_computed_at":"2026-06-23T03:14:17.506955Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.23349","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":"2026-06-23T03:14:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u4aZsWKJDyz5d4EPEjXEWVnuJKtpWVYFpAggV0z+osjCd165Qth6fYoO5KXg0LGxHzQEtrTLw0RIeyTj6VXpBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T14:48:56.440447Z"},"content_sha256":"bce64db02a0a23bfc62e434908bfa071e7f06928bc420669790bc3bd48531da5","schema_version":"1.0","event_id":"sha256:bce64db02a0a23bfc62e434908bfa071e7f06928bc420669790bc3bd48531da5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:DIU3P3SU6VKDSZCXO7R4HUZGVE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dissociation of NaCl in supercritical aqueous fluids of moderate and high concentrations: A molecular dynamics study","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["cond-mat.other","physics.chem-ph","physics.geo-ph"],"primary_cat":"cond-mat.soft","authors_text":"Mikhail V. Ivanov, Olga V. Alexandrovich","submitted_at":"2026-06-22T13:52:41Z","abstract_excerpt":"We report classical molecular dynamics simulations of NaCl association and dissociation in supercritical aqueous fluids over a wide range of salt concentrations, from moderate salinity to highly concentrated H2O-NaCl mixtures attainable at high temperatures. The degree of dissociation a and the corresponding ideal dissociation constant Kd, derived directly from a, were calculated as functions of the stoichiometric NaCl mole fraction at selected pressure-temperature (PT) conditions from 673.15 to 1273.15 K and from 0.1 to 2 GPa. At moderate salinity corresponding to a molality of approximately "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.23349","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2606.23349/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-06-23T03:14:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wiRNA2zC8QhuhT+d452y6XpVL/zDM/4Pen/IF0pWEDBP1SDjMgZjPXIGpINaDZUpDrzLV3cRw/51ifTCXNOuCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T14:48:56.440829Z"},"content_sha256":"cbb85f4a194f15ea117f289b9edb02805b35405d188d0e46e9da9d5b81258171","schema_version":"1.0","event_id":"sha256:cbb85f4a194f15ea117f289b9edb02805b35405d188d0e46e9da9d5b81258171"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DIU3P3SU6VKDSZCXO7R4HUZGVE/bundle.json","state_url":"https://pith.science/pith/DIU3P3SU6VKDSZCXO7R4HUZGVE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DIU3P3SU6VKDSZCXO7R4HUZGVE/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":"2026-06-29T14:48:56Z","links":{"resolver":"https://pith.science/pith/DIU3P3SU6VKDSZCXO7R4HUZGVE","bundle":"https://pith.science/pith/DIU3P3SU6VKDSZCXO7R4HUZGVE/bundle.json","state":"https://pith.science/pith/DIU3P3SU6VKDSZCXO7R4HUZGVE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DIU3P3SU6VKDSZCXO7R4HUZGVE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:DIU3P3SU6VKDSZCXO7R4HUZGVE","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":"1b1ccc224ad37ecdca70cb6d8acfea5111f7a6efe9451e37ecaf22e037f34409","cross_cats_sorted":["cond-mat.other","physics.chem-ph","physics.geo-ph"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.soft","submitted_at":"2026-06-22T13:52:41Z","title_canon_sha256":"f80b95975752af57b3b3d235857c21502c33f351d3f92ced72112077f4370b12"},"schema_version":"1.0","source":{"id":"2606.23349","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.23349","created_at":"2026-06-23T03:14:17Z"},{"alias_kind":"arxiv_version","alias_value":"2606.23349v1","created_at":"2026-06-23T03:14:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.23349","created_at":"2026-06-23T03:14:17Z"},{"alias_kind":"pith_short_12","alias_value":"DIU3P3SU6VKD","created_at":"2026-06-23T03:14:17Z"},{"alias_kind":"pith_short_16","alias_value":"DIU3P3SU6VKDSZCX","created_at":"2026-06-23T03:14:17Z"},{"alias_kind":"pith_short_8","alias_value":"DIU3P3SU","created_at":"2026-06-23T03:14:17Z"}],"graph_snapshots":[{"event_id":"sha256:cbb85f4a194f15ea117f289b9edb02805b35405d188d0e46e9da9d5b81258171","target":"graph","created_at":"2026-06-23T03:14:17Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2606.23349/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report classical molecular dynamics simulations of NaCl association and dissociation in supercritical aqueous fluids over a wide range of salt concentrations, from moderate salinity to highly concentrated H2O-NaCl mixtures attainable at high temperatures. The degree of dissociation a and the corresponding ideal dissociation constant Kd, derived directly from a, were calculated as functions of the stoichiometric NaCl mole fraction at selected pressure-temperature (PT) conditions from 673.15 to 1273.15 K and from 0.1 to 2 GPa. At moderate salinity corresponding to a molality of approximately ","authors_text":"Mikhail V. Ivanov, Olga V. Alexandrovich","cross_cats":["cond-mat.other","physics.chem-ph","physics.geo-ph"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.soft","submitted_at":"2026-06-22T13:52:41Z","title":"Dissociation of NaCl in supercritical aqueous fluids of moderate and high concentrations: A molecular dynamics study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.23349","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:bce64db02a0a23bfc62e434908bfa071e7f06928bc420669790bc3bd48531da5","target":"record","created_at":"2026-06-23T03:14:17Z","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":"1b1ccc224ad37ecdca70cb6d8acfea5111f7a6efe9451e37ecaf22e037f34409","cross_cats_sorted":["cond-mat.other","physics.chem-ph","physics.geo-ph"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.soft","submitted_at":"2026-06-22T13:52:41Z","title_canon_sha256":"f80b95975752af57b3b3d235857c21502c33f351d3f92ced72112077f4370b12"},"schema_version":"1.0","source":{"id":"2606.23349","kind":"arxiv","version":1}},"canonical_sha256":"1a29b7ee54f55439645777e3c3d326a916cccc599f0cecd033d2d19714d52d2e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1a29b7ee54f55439645777e3c3d326a916cccc599f0cecd033d2d19714d52d2e","first_computed_at":"2026-06-23T03:14:17.506955Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-23T03:14:17.506955Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"m3vdRO8UorpkYyPoV/vM6p5uXkR4szNQ+QIQx5kfthK0uI8oTYyEW5T36fomUFV0LPmuqUtEfAEhn3W6CESlAw==","signature_status":"signed_v1","signed_at":"2026-06-23T03:14:17.507389Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.23349","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bce64db02a0a23bfc62e434908bfa071e7f06928bc420669790bc3bd48531da5","sha256:cbb85f4a194f15ea117f289b9edb02805b35405d188d0e46e9da9d5b81258171"],"state_sha256":"a14039ffd75b5a7a3ab10b44112576b46bbbf1cc7acf42408afe5a5cd19bc531"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Vs9VzQzHkTz0Drnaaw/BIr08aPi1r8Z9FuW2k4SQDFVxwcypKGTvcPcaMfZ1Jsy3/QzVN/vl/NeaQM597KYMBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-29T14:48:56.442775Z","bundle_sha256":"7e16841b98f0b9962a88b5d949e9dccab97e3118ee104ac37ac86e1a7f1113b2"}}