{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:LQY24EQZOYTHLNN4PJUO5JYC3L","short_pith_number":"pith:LQY24EQZ","canonical_record":{"source":{"id":"1204.4750","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2012-04-20T21:33:38Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"9c4b2db8445e528936ae0b32180103c49823ffbdd552ee1eef926278f8802c68","abstract_canon_sha256":"ea396cb0ba080331b46f6980847367bc54ee23195a68ea9936a5c85f5a82b98d"},"schema_version":"1.0"},"canonical_sha256":"5c31ae1219762675b5bc7a68eea702dae91180026544169d4b9c70d7ebc23fad","source":{"kind":"arxiv","id":"1204.4750","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.4750","created_at":"2026-05-18T03:50:25Z"},{"alias_kind":"arxiv_version","alias_value":"1204.4750v2","created_at":"2026-05-18T03:50:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.4750","created_at":"2026-05-18T03:50:25Z"},{"alias_kind":"pith_short_12","alias_value":"LQY24EQZOYTH","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"LQY24EQZOYTHLNN4","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"LQY24EQZ","created_at":"2026-05-18T12:27:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:LQY24EQZOYTHLNN4PJUO5JYC3L","target":"record","payload":{"canonical_record":{"source":{"id":"1204.4750","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2012-04-20T21:33:38Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"9c4b2db8445e528936ae0b32180103c49823ffbdd552ee1eef926278f8802c68","abstract_canon_sha256":"ea396cb0ba080331b46f6980847367bc54ee23195a68ea9936a5c85f5a82b98d"},"schema_version":"1.0"},"canonical_sha256":"5c31ae1219762675b5bc7a68eea702dae91180026544169d4b9c70d7ebc23fad","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:50:25.162904Z","signature_b64":"5rW1+XlbTWqDcW7NzNYoEecpUuIb3Oc5wNKKeQwjVhStZMiJqxqhgNY6mssBFdbkHSdebsuFe0TL0Ifu3XDADA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5c31ae1219762675b5bc7a68eea702dae91180026544169d4b9c70d7ebc23fad","last_reissued_at":"2026-05-18T03:50:25.162162Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:50:25.162162Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1204.4750","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:50:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KcAs8N7VX5zTHyViVxxgLk7jGuNdPYEnFTGbKA5GnDMmDuuf+UnNO3lDxW5ivJ0zD6SI9sQMohsajwUoyl4qBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T06:35:21.977686Z"},"content_sha256":"aede6ddc7a343f78def3c6e02843d23d66298f342cc0f52912817b36ebcb419c","schema_version":"1.0","event_id":"sha256:aede6ddc7a343f78def3c6e02843d23d66298f342cc0f52912817b36ebcb419c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:LQY24EQZOYTHLNN4PJUO5JYC3L","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Understanding the nature of \"superhard graphite\"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"physics.comp-ph","authors_text":"Artem R. Oganov, Salah Eddine Boulfelfel, Stefano Leoni","submitted_at":"2012-04-20T21:33:38Z","abstract_excerpt":"Numerous experiments showed that on cold compression graphite transforms into a new superhard and transparent allotrope. Several structures with different topologies have been proposed for this phase. While experimental data are consistent with these models, the only way to solve this puzzle is to find which structure is kinetically easiest to form. Using state-of-the-art molecular-dynamics transition path sampling simulations, we investigate kinetic pathways of the pressure-induced transformation of graphite to various superhard candidate structures. Unlike hitherto applied methods for elucid"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.4750","kind":"arxiv","version":2},"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":"2026-05-18T03:50:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/lmOpc9EyNQTyQ35pNQIzj95c++c+XUFDLqlRL2L2uCdyfUUYllQMJhESoBLYTvUnLOlGfhVq6gHurdeH9O8Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T06:35:21.978324Z"},"content_sha256":"acebeba6def69d06cb2e89d99f280eecbc9178ad239cbfc18d74636b287ec34e","schema_version":"1.0","event_id":"sha256:acebeba6def69d06cb2e89d99f280eecbc9178ad239cbfc18d74636b287ec34e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LQY24EQZOYTHLNN4PJUO5JYC3L/bundle.json","state_url":"https://pith.science/pith/LQY24EQZOYTHLNN4PJUO5JYC3L/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LQY24EQZOYTHLNN4PJUO5JYC3L/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":"2026-05-27T06:35:21Z","links":{"resolver":"https://pith.science/pith/LQY24EQZOYTHLNN4PJUO5JYC3L","bundle":"https://pith.science/pith/LQY24EQZOYTHLNN4PJUO5JYC3L/bundle.json","state":"https://pith.science/pith/LQY24EQZOYTHLNN4PJUO5JYC3L/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LQY24EQZOYTHLNN4PJUO5JYC3L/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:LQY24EQZOYTHLNN4PJUO5JYC3L","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":"ea396cb0ba080331b46f6980847367bc54ee23195a68ea9936a5c85f5a82b98d","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2012-04-20T21:33:38Z","title_canon_sha256":"9c4b2db8445e528936ae0b32180103c49823ffbdd552ee1eef926278f8802c68"},"schema_version":"1.0","source":{"id":"1204.4750","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.4750","created_at":"2026-05-18T03:50:25Z"},{"alias_kind":"arxiv_version","alias_value":"1204.4750v2","created_at":"2026-05-18T03:50:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.4750","created_at":"2026-05-18T03:50:25Z"},{"alias_kind":"pith_short_12","alias_value":"LQY24EQZOYTH","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"LQY24EQZOYTHLNN4","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"LQY24EQZ","created_at":"2026-05-18T12:27:14Z"}],"graph_snapshots":[{"event_id":"sha256:acebeba6def69d06cb2e89d99f280eecbc9178ad239cbfc18d74636b287ec34e","target":"graph","created_at":"2026-05-18T03:50:25Z","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":"Numerous experiments showed that on cold compression graphite transforms into a new superhard and transparent allotrope. Several structures with different topologies have been proposed for this phase. While experimental data are consistent with these models, the only way to solve this puzzle is to find which structure is kinetically easiest to form. Using state-of-the-art molecular-dynamics transition path sampling simulations, we investigate kinetic pathways of the pressure-induced transformation of graphite to various superhard candidate structures. Unlike hitherto applied methods for elucid","authors_text":"Artem R. Oganov, Salah Eddine Boulfelfel, Stefano Leoni","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2012-04-20T21:33:38Z","title":"Understanding the nature of \"superhard graphite\""},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.4750","kind":"arxiv","version":2},"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:aede6ddc7a343f78def3c6e02843d23d66298f342cc0f52912817b36ebcb419c","target":"record","created_at":"2026-05-18T03:50:25Z","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":"ea396cb0ba080331b46f6980847367bc54ee23195a68ea9936a5c85f5a82b98d","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2012-04-20T21:33:38Z","title_canon_sha256":"9c4b2db8445e528936ae0b32180103c49823ffbdd552ee1eef926278f8802c68"},"schema_version":"1.0","source":{"id":"1204.4750","kind":"arxiv","version":2}},"canonical_sha256":"5c31ae1219762675b5bc7a68eea702dae91180026544169d4b9c70d7ebc23fad","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5c31ae1219762675b5bc7a68eea702dae91180026544169d4b9c70d7ebc23fad","first_computed_at":"2026-05-18T03:50:25.162162Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:50:25.162162Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5rW1+XlbTWqDcW7NzNYoEecpUuIb3Oc5wNKKeQwjVhStZMiJqxqhgNY6mssBFdbkHSdebsuFe0TL0Ifu3XDADA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:50:25.162904Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.4750","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aede6ddc7a343f78def3c6e02843d23d66298f342cc0f52912817b36ebcb419c","sha256:acebeba6def69d06cb2e89d99f280eecbc9178ad239cbfc18d74636b287ec34e"],"state_sha256":"0bb93c36334e4a1e8f03e5910779a4b2bef8ff6f5f7c9196e96d8cdc2255a54e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NpIBEuonesKLWTpnpB9UyCLlIutb/iuP7AnVt1X3D7RlQ4NO4UGc2TWb56gC5OP7bCY1YobabOlRWDrCaAdKDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T06:35:21.981775Z","bundle_sha256":"2d19d0137d6c7915b457e84a57f4a7fb4691d98fc3d442ee70549de00f799647"}}