{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:YNYVLO5UGEKB6Q55OD27U7LRFR","short_pith_number":"pith:YNYVLO5U","canonical_record":{"source":{"id":"2408.13419","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-08-24T01:15:04Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"de8d31faa50068464fa2783b259f66a9c88db9cc940275d86c647ed0b53aa890","abstract_canon_sha256":"25f1b03f4d11793a566c61a56a82b8b0c0f9969bf291bb69a42ab738ae715a61"},"schema_version":"1.0"},"canonical_sha256":"c37155bbb431141f43bd70f5fa7d712c6cf081934f8c9951f4656adbe2cb3cf1","source":{"kind":"arxiv","id":"2408.13419","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2408.13419","created_at":"2026-07-05T08:58:50Z"},{"alias_kind":"arxiv_version","alias_value":"2408.13419v1","created_at":"2026-07-05T08:58:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2408.13419","created_at":"2026-07-05T08:58:50Z"},{"alias_kind":"pith_short_12","alias_value":"YNYVLO5UGEKB","created_at":"2026-07-05T08:58:50Z"},{"alias_kind":"pith_short_16","alias_value":"YNYVLO5UGEKB6Q55","created_at":"2026-07-05T08:58:50Z"},{"alias_kind":"pith_short_8","alias_value":"YNYVLO5U","created_at":"2026-07-05T08:58:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:YNYVLO5UGEKB6Q55OD27U7LRFR","target":"record","payload":{"canonical_record":{"source":{"id":"2408.13419","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-08-24T01:15:04Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"de8d31faa50068464fa2783b259f66a9c88db9cc940275d86c647ed0b53aa890","abstract_canon_sha256":"25f1b03f4d11793a566c61a56a82b8b0c0f9969bf291bb69a42ab738ae715a61"},"schema_version":"1.0"},"canonical_sha256":"c37155bbb431141f43bd70f5fa7d712c6cf081934f8c9951f4656adbe2cb3cf1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:58:50.273560Z","signature_b64":"qo0pNhnpSUr3/7VIT8/fLxmVIjK1ZLkvo7wGCCFnXh+axbG1xF2FuhfN/O2UHlhvBmHzCa+8RWSYs/vfKmMQAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c37155bbb431141f43bd70f5fa7d712c6cf081934f8c9951f4656adbe2cb3cf1","last_reissued_at":"2026-07-05T08:58:50.273025Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:58:50.273025Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2408.13419","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":"2026-07-05T08:58:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"86CO+6P2IUEzPyNi2r55i1lkmoxAK0eKx+BWDz2dVQqENH4nfhbmBf0LbkNA0uKDHnElycNN493FPdtL6UtIBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T06:16:02.333771Z"},"content_sha256":"21050a90f19041f7199e21b4f94f63c1c63722db07a4a0f30f98349afdc00be5","schema_version":"1.0","event_id":"sha256:21050a90f19041f7199e21b4f94f63c1c63722db07a4a0f30f98349afdc00be5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:YNYVLO5UGEKB6Q55OD27U7LRFR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Diffusion Driven Transient Hydrogenation in Metal Superhydrides at Extreme Conditions","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Dominique Laniel, Israel Osmond, Jonathan Buhot, Meng Yang, Owen Moulding, Rajesh Jana, Sven Friedemann, Takeshi Nakagawa, Thomas Meier, Yishan Zhou, Yunhua Fu","submitted_at":"2024-08-24T01:15:04Z","abstract_excerpt":"In recent years, metal hydride research has become one of the driving forces of the high-pressure community, as it is believed to hold the key to superconductivity close to ambient temperature. While numerous novel metal hydride compounds have been reported and extensively investigated for their superconducting properties, little attention has been focused on the atomic and electronic states of hydrogen, the main ingredient in these novel compounds. Here, we present combined $^{1}H$- and $^{139}La$-NMR data on lanthanum superhydrides, $LaH_{x}$, ($x = 10.2 - 11.1$), synthesized after laser hea"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2408.13419","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/2408.13419/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":"2026-07-05T08:58:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qI1uAhImJs07HeyYFEWl0vjlbOsBJEB+UL1vnx4H+ohjfAt5SaPrP2yLpm3K+LfPAIBMqYBe2/3NKrLtoHvUDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T06:16:02.334148Z"},"content_sha256":"37693c029a4e27a8d19709ed8a81e0e038392f1eabc095952fdc8e251b90aec8","schema_version":"1.0","event_id":"sha256:37693c029a4e27a8d19709ed8a81e0e038392f1eabc095952fdc8e251b90aec8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YNYVLO5UGEKB6Q55OD27U7LRFR/bundle.json","state_url":"https://pith.science/pith/YNYVLO5UGEKB6Q55OD27U7LRFR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YNYVLO5UGEKB6Q55OD27U7LRFR/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":"2026-07-07T06:16:02Z","links":{"resolver":"https://pith.science/pith/YNYVLO5UGEKB6Q55OD27U7LRFR","bundle":"https://pith.science/pith/YNYVLO5UGEKB6Q55OD27U7LRFR/bundle.json","state":"https://pith.science/pith/YNYVLO5UGEKB6Q55OD27U7LRFR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YNYVLO5UGEKB6Q55OD27U7LRFR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:YNYVLO5UGEKB6Q55OD27U7LRFR","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":"25f1b03f4d11793a566c61a56a82b8b0c0f9969bf291bb69a42ab738ae715a61","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-08-24T01:15:04Z","title_canon_sha256":"de8d31faa50068464fa2783b259f66a9c88db9cc940275d86c647ed0b53aa890"},"schema_version":"1.0","source":{"id":"2408.13419","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2408.13419","created_at":"2026-07-05T08:58:50Z"},{"alias_kind":"arxiv_version","alias_value":"2408.13419v1","created_at":"2026-07-05T08:58:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2408.13419","created_at":"2026-07-05T08:58:50Z"},{"alias_kind":"pith_short_12","alias_value":"YNYVLO5UGEKB","created_at":"2026-07-05T08:58:50Z"},{"alias_kind":"pith_short_16","alias_value":"YNYVLO5UGEKB6Q55","created_at":"2026-07-05T08:58:50Z"},{"alias_kind":"pith_short_8","alias_value":"YNYVLO5U","created_at":"2026-07-05T08:58:50Z"}],"graph_snapshots":[{"event_id":"sha256:37693c029a4e27a8d19709ed8a81e0e038392f1eabc095952fdc8e251b90aec8","target":"graph","created_at":"2026-07-05T08:58:50Z","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/2408.13419/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In recent years, metal hydride research has become one of the driving forces of the high-pressure community, as it is believed to hold the key to superconductivity close to ambient temperature. While numerous novel metal hydride compounds have been reported and extensively investigated for their superconducting properties, little attention has been focused on the atomic and electronic states of hydrogen, the main ingredient in these novel compounds. Here, we present combined $^{1}H$- and $^{139}La$-NMR data on lanthanum superhydrides, $LaH_{x}$, ($x = 10.2 - 11.1$), synthesized after laser hea","authors_text":"Dominique Laniel, Israel Osmond, Jonathan Buhot, Meng Yang, Owen Moulding, Rajesh Jana, Sven Friedemann, Takeshi Nakagawa, Thomas Meier, Yishan Zhou, Yunhua Fu","cross_cats":["cond-mat.supr-con"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-08-24T01:15:04Z","title":"Diffusion Driven Transient Hydrogenation in Metal Superhydrides at Extreme Conditions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2408.13419","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":"sha256:21050a90f19041f7199e21b4f94f63c1c63722db07a4a0f30f98349afdc00be5","target":"record","created_at":"2026-07-05T08:58:50Z","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":"25f1b03f4d11793a566c61a56a82b8b0c0f9969bf291bb69a42ab738ae715a61","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-08-24T01:15:04Z","title_canon_sha256":"de8d31faa50068464fa2783b259f66a9c88db9cc940275d86c647ed0b53aa890"},"schema_version":"1.0","source":{"id":"2408.13419","kind":"arxiv","version":1}},"canonical_sha256":"c37155bbb431141f43bd70f5fa7d712c6cf081934f8c9951f4656adbe2cb3cf1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c37155bbb431141f43bd70f5fa7d712c6cf081934f8c9951f4656adbe2cb3cf1","first_computed_at":"2026-07-05T08:58:50.273025Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:58:50.273025Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qo0pNhnpSUr3/7VIT8/fLxmVIjK1ZLkvo7wGCCFnXh+axbG1xF2FuhfN/O2UHlhvBmHzCa+8RWSYs/vfKmMQAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:58:50.273560Z","signed_message":"canonical_sha256_bytes"},"source_id":"2408.13419","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:21050a90f19041f7199e21b4f94f63c1c63722db07a4a0f30f98349afdc00be5","sha256:37693c029a4e27a8d19709ed8a81e0e038392f1eabc095952fdc8e251b90aec8"],"state_sha256":"eb5c047eb392afba3cf36a711a6b74051ed1cfa23838dc50d7b198469bc26b09"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x67uO4yYbBmSpRalcLYg73ebROZjySPP5NnyM/uhilAkoG741vG9a3CCzQrcCatoZCFQmekw/fJ1Rkv0uYL2Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T06:16:02.336071Z","bundle_sha256":"ff84ea4dfcc9f8c38566b958f3c3b519a6359be31a87d7afb63ce8a986b83a21"}}