{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:F3JJ2YGLBD6AAN6GUPFDNS5JDI","short_pith_number":"pith:F3JJ2YGL","canonical_record":{"source":{"id":"2407.19368","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-07-28T02:32:48Z","cross_cats_sorted":[],"title_canon_sha256":"5e6b7a0f6ac408b342babebcf3a7dbdf7520444f86b14e27ee0a30d079eafc62","abstract_canon_sha256":"6f9a6726e9c97bb675a669cc863a078c3083557663ddab58dfe12221dd59a022"},"schema_version":"1.0"},"canonical_sha256":"2ed29d60cb08fc0037c6a3ca36cba91a0da968bd0327a71bbcaec4864915a6e0","source":{"kind":"arxiv","id":"2407.19368","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.19368","created_at":"2026-07-05T08:49:38Z"},{"alias_kind":"arxiv_version","alias_value":"2407.19368v1","created_at":"2026-07-05T08:49:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.19368","created_at":"2026-07-05T08:49:38Z"},{"alias_kind":"pith_short_12","alias_value":"F3JJ2YGLBD6A","created_at":"2026-07-05T08:49:38Z"},{"alias_kind":"pith_short_16","alias_value":"F3JJ2YGLBD6AAN6G","created_at":"2026-07-05T08:49:38Z"},{"alias_kind":"pith_short_8","alias_value":"F3JJ2YGL","created_at":"2026-07-05T08:49:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:F3JJ2YGLBD6AAN6GUPFDNS5JDI","target":"record","payload":{"canonical_record":{"source":{"id":"2407.19368","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-07-28T02:32:48Z","cross_cats_sorted":[],"title_canon_sha256":"5e6b7a0f6ac408b342babebcf3a7dbdf7520444f86b14e27ee0a30d079eafc62","abstract_canon_sha256":"6f9a6726e9c97bb675a669cc863a078c3083557663ddab58dfe12221dd59a022"},"schema_version":"1.0"},"canonical_sha256":"2ed29d60cb08fc0037c6a3ca36cba91a0da968bd0327a71bbcaec4864915a6e0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:49:38.933849Z","signature_b64":"7QNBysBgnuUHy8ggLnAasXH/YR8NJKIhpfp9zc3rLl1qf2tVc9NLidzFYe8HL1mEqGt8uG4zRU67a209FZ34Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2ed29d60cb08fc0037c6a3ca36cba91a0da968bd0327a71bbcaec4864915a6e0","last_reissued_at":"2026-07-05T08:49:38.933496Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:49:38.933496Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2407.19368","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":"2026-07-05T08:49:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PeX1RS1opa9+SLNgpGqdcyElHNIQkymYMRdt71SYZ0VyUSWTN+dOORHm9boI36hezwF13Cy+0ssimX7Ehh2iCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-22T13:32:17.448520Z"},"content_sha256":"c0a22b814ddb7acc4c9a0ca5b658778ff55058007058dfb2bc990b18aeec6187","schema_version":"1.0","event_id":"sha256:c0a22b814ddb7acc4c9a0ca5b658778ff55058007058dfb2bc990b18aeec6187"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:F3JJ2YGLBD6AAN6GUPFDNS5JDI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Hexagonal to Monoclinic Phase Transition in Dense Hydrogen Phase III Detected by High-Pressure NMR","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Meng Yang, Rajesh Jana, Takeshi Nakagawa, Thomas Meier, Yishan Zhou, Yunhua Fu","submitted_at":"2024-07-28T02:32:48Z","abstract_excerpt":"Conclusive crystal structure determination of the high pressure phases of hydrogen remains elusive due to lack of core electrons and vanishing wave vectors, rendering standard high-pressure experimental methods moot. Ab-initio DFT calculations have shown that structural polymorphism might be solely resolvable using high-resolution nuclear magnetic resonance (NMR) spectroscopy at mega-bar pressures, however technical challenges have precluded such experiments thus far. Here, we present in-situ high-pressure high-resolution NMR experiments in hydrogen phase III between 181 GPa and 208 GPa at roo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.19368","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/2407.19368/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":"2026-07-05T08:49:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y2WB+RakU0VZ2fnSktF1C2ckUyxnkgyYXU6Fj/z2FBBvvykuD/plueEN13bIv/GVuN1jpr76Rp6BXa948vP1Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-22T13:32:17.448895Z"},"content_sha256":"c05b8389fe9e54f5978308254467bc848014889da5c581cd717b37bc101d8c34","schema_version":"1.0","event_id":"sha256:c05b8389fe9e54f5978308254467bc848014889da5c581cd717b37bc101d8c34"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/F3JJ2YGLBD6AAN6GUPFDNS5JDI/bundle.json","state_url":"https://pith.science/pith/F3JJ2YGLBD6AAN6GUPFDNS5JDI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/F3JJ2YGLBD6AAN6GUPFDNS5JDI/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":"2026-07-22T13:32:17Z","links":{"resolver":"https://pith.science/pith/F3JJ2YGLBD6AAN6GUPFDNS5JDI","bundle":"https://pith.science/pith/F3JJ2YGLBD6AAN6GUPFDNS5JDI/bundle.json","state":"https://pith.science/pith/F3JJ2YGLBD6AAN6GUPFDNS5JDI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/F3JJ2YGLBD6AAN6GUPFDNS5JDI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:F3JJ2YGLBD6AAN6GUPFDNS5JDI","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":"6f9a6726e9c97bb675a669cc863a078c3083557663ddab58dfe12221dd59a022","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-07-28T02:32:48Z","title_canon_sha256":"5e6b7a0f6ac408b342babebcf3a7dbdf7520444f86b14e27ee0a30d079eafc62"},"schema_version":"1.0","source":{"id":"2407.19368","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.19368","created_at":"2026-07-05T08:49:38Z"},{"alias_kind":"arxiv_version","alias_value":"2407.19368v1","created_at":"2026-07-05T08:49:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.19368","created_at":"2026-07-05T08:49:38Z"},{"alias_kind":"pith_short_12","alias_value":"F3JJ2YGLBD6A","created_at":"2026-07-05T08:49:38Z"},{"alias_kind":"pith_short_16","alias_value":"F3JJ2YGLBD6AAN6G","created_at":"2026-07-05T08:49:38Z"},{"alias_kind":"pith_short_8","alias_value":"F3JJ2YGL","created_at":"2026-07-05T08:49:38Z"}],"graph_snapshots":[{"event_id":"sha256:c05b8389fe9e54f5978308254467bc848014889da5c581cd717b37bc101d8c34","target":"graph","created_at":"2026-07-05T08:49:38Z","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/2407.19368/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Conclusive crystal structure determination of the high pressure phases of hydrogen remains elusive due to lack of core electrons and vanishing wave vectors, rendering standard high-pressure experimental methods moot. Ab-initio DFT calculations have shown that structural polymorphism might be solely resolvable using high-resolution nuclear magnetic resonance (NMR) spectroscopy at mega-bar pressures, however technical challenges have precluded such experiments thus far. Here, we present in-situ high-pressure high-resolution NMR experiments in hydrogen phase III between 181 GPa and 208 GPa at roo","authors_text":"Meng Yang, Rajesh Jana, Takeshi Nakagawa, Thomas Meier, Yishan Zhou, Yunhua Fu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-07-28T02:32:48Z","title":"Hexagonal to Monoclinic Phase Transition in Dense Hydrogen Phase III Detected by High-Pressure NMR"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.19368","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:c0a22b814ddb7acc4c9a0ca5b658778ff55058007058dfb2bc990b18aeec6187","target":"record","created_at":"2026-07-05T08:49:38Z","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":"6f9a6726e9c97bb675a669cc863a078c3083557663ddab58dfe12221dd59a022","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-07-28T02:32:48Z","title_canon_sha256":"5e6b7a0f6ac408b342babebcf3a7dbdf7520444f86b14e27ee0a30d079eafc62"},"schema_version":"1.0","source":{"id":"2407.19368","kind":"arxiv","version":1}},"canonical_sha256":"2ed29d60cb08fc0037c6a3ca36cba91a0da968bd0327a71bbcaec4864915a6e0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2ed29d60cb08fc0037c6a3ca36cba91a0da968bd0327a71bbcaec4864915a6e0","first_computed_at":"2026-07-05T08:49:38.933496Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:49:38.933496Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7QNBysBgnuUHy8ggLnAasXH/YR8NJKIhpfp9zc3rLl1qf2tVc9NLidzFYe8HL1mEqGt8uG4zRU67a209FZ34Cg==","signature_status":"signed_v1","signed_at":"2026-07-05T08:49:38.933849Z","signed_message":"canonical_sha256_bytes"},"source_id":"2407.19368","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c0a22b814ddb7acc4c9a0ca5b658778ff55058007058dfb2bc990b18aeec6187","sha256:c05b8389fe9e54f5978308254467bc848014889da5c581cd717b37bc101d8c34"],"state_sha256":"f617deec3016c39cd6cda75f55556a59f024ee40fb39eeb1ea57f1defa789abc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dEbzTllAA63aq9MtbYuIPHIdJQDPgUMDQr5J7h0cCkR4xRafnLGryzr9g+tB5E3e+gjFfIgR5XNgm4MJ6QwfAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-22T13:32:17.451036Z","bundle_sha256":"cb962aa51f7ed0be240e6e992c9883b78c64a01403626f93ef922dfefaf3809c"}}