{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:W5DC3BQCZS5CVOQTB7TXS5C7DH","short_pith_number":"pith:W5DC3BQC","canonical_record":{"source":{"id":"1507.06363","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2015-07-23T00:41:52Z","cross_cats_sorted":["physics.chem-ph"],"title_canon_sha256":"8269eaf6ae982b64eca0e010cd808def58c51e00b4b6570fb6b94a4725f68700","abstract_canon_sha256":"0f96c0ab51aa48d9a92eeed8937fb0f5c73b7d191725cd95364020b7453ba048"},"schema_version":"1.0"},"canonical_sha256":"b7462d8602ccba2aba130fe779745f19c49e841c1e80e2f0ac02db3f9b515890","source":{"kind":"arxiv","id":"1507.06363","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.06363","created_at":"2026-05-18T01:23:18Z"},{"alias_kind":"arxiv_version","alias_value":"1507.06363v3","created_at":"2026-05-18T01:23:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.06363","created_at":"2026-05-18T01:23:18Z"},{"alias_kind":"pith_short_12","alias_value":"W5DC3BQCZS5C","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"W5DC3BQCZS5CVOQT","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"W5DC3BQC","created_at":"2026-05-18T12:29:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:W5DC3BQCZS5CVOQTB7TXS5C7DH","target":"record","payload":{"canonical_record":{"source":{"id":"1507.06363","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2015-07-23T00:41:52Z","cross_cats_sorted":["physics.chem-ph"],"title_canon_sha256":"8269eaf6ae982b64eca0e010cd808def58c51e00b4b6570fb6b94a4725f68700","abstract_canon_sha256":"0f96c0ab51aa48d9a92eeed8937fb0f5c73b7d191725cd95364020b7453ba048"},"schema_version":"1.0"},"canonical_sha256":"b7462d8602ccba2aba130fe779745f19c49e841c1e80e2f0ac02db3f9b515890","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:23:18.690171Z","signature_b64":"UQx32Q2ggo+OHS0B5XhkcuZ9Qm6jcesXbraAPjmC7UGPUceyMxIPBeMIuShfoG00ozujhla7Sclj2FlF7HH9AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b7462d8602ccba2aba130fe779745f19c49e841c1e80e2f0ac02db3f9b515890","last_reissued_at":"2026-05-18T01:23:18.689333Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:23:18.689333Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1507.06363","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:23:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zK3P6DVe3PEsH+qhaWO8HTHivl2+XxFHnWxXcqr0OBmRQMgaOfzszIMxIkpb8MTkMEHq8UZi/csAyofgy//nAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T14:00:10.761171Z"},"content_sha256":"746991377b69e12953bcbfe8b153c5f3ef3186375639e4814d50c1e46c6219d8","schema_version":"1.0","event_id":"sha256:746991377b69e12953bcbfe8b153c5f3ef3186375639e4814d50c1e46c6219d8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:W5DC3BQCZS5CVOQTB7TXS5C7DH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The hydrogen bond network of water supports propagating optical phonon-like modes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.chem-ph"],"primary_cat":"cond-mat.soft","authors_text":"Daniel C. Elton, M.-V. Fern\\'andez-Serra","submitted_at":"2015-07-23T00:41:52Z","abstract_excerpt":"The local structure of liquid water as a function of temperature is a source of intense research. This structure is intimately linked to the dynamics of water molecules, which can be measured using Raman and infrared spectroscopies. The assignment of spectral peaks depends on whether they are collective modes or single molecule motions. Vibrational modes in liquids are usually considered to be associated to the motions of single molecules or small clusters. Using molecular dynamics simulations we find dispersive optical phonon-like modes in the librational and OH stretching bands. We argue tha"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.06363","kind":"arxiv","version":3},"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":"2026-05-18T01:23:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PwLCuAsN2XPt/Lq5jKOX1nYpUPYWP4SQbrDJH/Z56YSfKi45skGscYu+WqxO74q/BcAG5U786Qf+/VNI/R6gAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T14:00:10.761536Z"},"content_sha256":"0502bbda7c4019628b50d9657b25b120724ea72a60b06f080abf8ae6bee62e36","schema_version":"1.0","event_id":"sha256:0502bbda7c4019628b50d9657b25b120724ea72a60b06f080abf8ae6bee62e36"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/W5DC3BQCZS5CVOQTB7TXS5C7DH/bundle.json","state_url":"https://pith.science/pith/W5DC3BQCZS5CVOQTB7TXS5C7DH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/W5DC3BQCZS5CVOQTB7TXS5C7DH/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":"2026-05-28T14:00:10Z","links":{"resolver":"https://pith.science/pith/W5DC3BQCZS5CVOQTB7TXS5C7DH","bundle":"https://pith.science/pith/W5DC3BQCZS5CVOQTB7TXS5C7DH/bundle.json","state":"https://pith.science/pith/W5DC3BQCZS5CVOQTB7TXS5C7DH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/W5DC3BQCZS5CVOQTB7TXS5C7DH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:W5DC3BQCZS5CVOQTB7TXS5C7DH","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":"0f96c0ab51aa48d9a92eeed8937fb0f5c73b7d191725cd95364020b7453ba048","cross_cats_sorted":["physics.chem-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2015-07-23T00:41:52Z","title_canon_sha256":"8269eaf6ae982b64eca0e010cd808def58c51e00b4b6570fb6b94a4725f68700"},"schema_version":"1.0","source":{"id":"1507.06363","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.06363","created_at":"2026-05-18T01:23:18Z"},{"alias_kind":"arxiv_version","alias_value":"1507.06363v3","created_at":"2026-05-18T01:23:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.06363","created_at":"2026-05-18T01:23:18Z"},{"alias_kind":"pith_short_12","alias_value":"W5DC3BQCZS5C","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"W5DC3BQCZS5CVOQT","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"W5DC3BQC","created_at":"2026-05-18T12:29:47Z"}],"graph_snapshots":[{"event_id":"sha256:0502bbda7c4019628b50d9657b25b120724ea72a60b06f080abf8ae6bee62e36","target":"graph","created_at":"2026-05-18T01:23:18Z","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":"The local structure of liquid water as a function of temperature is a source of intense research. This structure is intimately linked to the dynamics of water molecules, which can be measured using Raman and infrared spectroscopies. The assignment of spectral peaks depends on whether they are collective modes or single molecule motions. Vibrational modes in liquids are usually considered to be associated to the motions of single molecules or small clusters. Using molecular dynamics simulations we find dispersive optical phonon-like modes in the librational and OH stretching bands. We argue tha","authors_text":"Daniel C. Elton, M.-V. Fern\\'andez-Serra","cross_cats":["physics.chem-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2015-07-23T00:41:52Z","title":"The hydrogen bond network of water supports propagating optical phonon-like modes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.06363","kind":"arxiv","version":3},"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":"sha256:746991377b69e12953bcbfe8b153c5f3ef3186375639e4814d50c1e46c6219d8","target":"record","created_at":"2026-05-18T01:23:18Z","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":"0f96c0ab51aa48d9a92eeed8937fb0f5c73b7d191725cd95364020b7453ba048","cross_cats_sorted":["physics.chem-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2015-07-23T00:41:52Z","title_canon_sha256":"8269eaf6ae982b64eca0e010cd808def58c51e00b4b6570fb6b94a4725f68700"},"schema_version":"1.0","source":{"id":"1507.06363","kind":"arxiv","version":3}},"canonical_sha256":"b7462d8602ccba2aba130fe779745f19c49e841c1e80e2f0ac02db3f9b515890","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b7462d8602ccba2aba130fe779745f19c49e841c1e80e2f0ac02db3f9b515890","first_computed_at":"2026-05-18T01:23:18.689333Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:23:18.689333Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UQx32Q2ggo+OHS0B5XhkcuZ9Qm6jcesXbraAPjmC7UGPUceyMxIPBeMIuShfoG00ozujhla7Sclj2FlF7HH9AA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:23:18.690171Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.06363","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:746991377b69e12953bcbfe8b153c5f3ef3186375639e4814d50c1e46c6219d8","sha256:0502bbda7c4019628b50d9657b25b120724ea72a60b06f080abf8ae6bee62e36"],"state_sha256":"f76d13933ecc05cbc00b19e421995ae99786d2d7a5896281d168fe4c99dacfbd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SXR1CevFRiWYHSUGP+XDSjNRy0wnYHBCvrZ3eFvM03mFyEVDwxi+nyfo9qNCVObn8Pbi234Mdn8sN/IrCTdbDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T14:00:10.763473Z","bundle_sha256":"51c26b34be99f76d28a6f919e322bc8e5772e480b6a8dc1743d8f0c0aa82622b"}}