{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:QDOPA2RMKYYIDXAWEZOTBTP64D","short_pith_number":"pith:QDOPA2RM","schema_version":"1.0","canonical_sha256":"80dcf06a2c563081dc16265d30cdfee0eb03a6c35147abbe34967c397e1403b8","source":{"kind":"arxiv","id":"1111.2134","version":1},"attestation_state":"computed","paper":{"title":"Solid-to-solid phase transition from amorphous carbon to graphite nanocrystal induced by intense femtosecond x-ray pulses","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. Graf, C. Bostedt, G. Hoffmann, H. Sinn, H. Vu, J. Bozek, J. Chalupsk\\'y, J. Gaudin, J. Krzywinski, L. Gregoratti, L. Juha, L. Vy\\v{s}\\'in, M. Amati, M. St\\\"ormer, M. Toufarov\\'a, R. A. London, R. Sobierajski, Sh. Dastjani-Farahani, S. Moeller, S.P. Hau-Riege, S. Schorb, T. Burian, Th. Tschentscher, V. H\\'ajkov\\'a, V. Vorl\\'i\\v{c}ek","submitted_at":"2011-11-09T08:49:05Z","abstract_excerpt":"We present the results of an experiment where amorphous carbon was irradiated by femtosecond x-ray free electron laser pulses. The 830 eV laser pulses induce a phase transition in the material which is characterized ex-situ. The phase transition energy threshold is determined by measuring the surface of each irradiated area using an optical Nomarski microscope. The threshold fluence is found to be 282 +/- 11 mJ/cm^2, corresponding to an absorbed dose at the surface of 131 +/-5 meV/atom. Atomic force microscopy measurements show volume expansion of the irradiated sample area, suggesting a solid"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1111.2134","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-11-09T08:49:05Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"d1432610eff78102ca3f57b3acd8bcab981a53cc432cf88b7a26c0e6df16a0ab","abstract_canon_sha256":"181afb1252701f0d1db8b68b65d59cffafdb2fc9721a264d03776fb9ae5da050"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:08:44.049329Z","signature_b64":"9NSxE1rFz7tP/oTfQxHsYAYqHNRou8USjYoxDaPXbv6Jy/BU/3WDUNn1Nhb/jTjGls6NCsYMmEiV4BiVeFrdCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"80dcf06a2c563081dc16265d30cdfee0eb03a6c35147abbe34967c397e1403b8","last_reissued_at":"2026-05-18T04:08:44.048837Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:08:44.048837Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Solid-to-solid phase transition from amorphous carbon to graphite nanocrystal induced by intense femtosecond x-ray pulses","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. Graf, C. Bostedt, G. Hoffmann, H. Sinn, H. Vu, J. Bozek, J. Chalupsk\\'y, J. Gaudin, J. Krzywinski, L. Gregoratti, L. Juha, L. Vy\\v{s}\\'in, M. Amati, M. St\\\"ormer, M. Toufarov\\'a, R. A. London, R. Sobierajski, Sh. Dastjani-Farahani, S. Moeller, S.P. Hau-Riege, S. Schorb, T. Burian, Th. Tschentscher, V. H\\'ajkov\\'a, V. Vorl\\'i\\v{c}ek","submitted_at":"2011-11-09T08:49:05Z","abstract_excerpt":"We present the results of an experiment where amorphous carbon was irradiated by femtosecond x-ray free electron laser pulses. The 830 eV laser pulses induce a phase transition in the material which is characterized ex-situ. The phase transition energy threshold is determined by measuring the surface of each irradiated area using an optical Nomarski microscope. The threshold fluence is found to be 282 +/- 11 mJ/cm^2, corresponding to an absorbed dose at the surface of 131 +/-5 meV/atom. Atomic force microscopy measurements show volume expansion of the irradiated sample area, suggesting a solid"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.2134","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":""},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1111.2134","created_at":"2026-05-18T04:08:44.048915+00:00"},{"alias_kind":"arxiv_version","alias_value":"1111.2134v1","created_at":"2026-05-18T04:08:44.048915+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.2134","created_at":"2026-05-18T04:08:44.048915+00:00"},{"alias_kind":"pith_short_12","alias_value":"QDOPA2RMKYYI","created_at":"2026-05-18T12:26:39.201973+00:00"},{"alias_kind":"pith_short_16","alias_value":"QDOPA2RMKYYIDXAW","created_at":"2026-05-18T12:26:39.201973+00:00"},{"alias_kind":"pith_short_8","alias_value":"QDOPA2RM","created_at":"2026-05-18T12:26:39.201973+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/QDOPA2RMKYYIDXAWEZOTBTP64D","json":"https://pith.science/pith/QDOPA2RMKYYIDXAWEZOTBTP64D.json","graph_json":"https://pith.science/api/pith-number/QDOPA2RMKYYIDXAWEZOTBTP64D/graph.json","events_json":"https://pith.science/api/pith-number/QDOPA2RMKYYIDXAWEZOTBTP64D/events.json","paper":"https://pith.science/paper/QDOPA2RM"},"agent_actions":{"view_html":"https://pith.science/pith/QDOPA2RMKYYIDXAWEZOTBTP64D","download_json":"https://pith.science/pith/QDOPA2RMKYYIDXAWEZOTBTP64D.json","view_paper":"https://pith.science/paper/QDOPA2RM","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1111.2134&json=true","fetch_graph":"https://pith.science/api/pith-number/QDOPA2RMKYYIDXAWEZOTBTP64D/graph.json","fetch_events":"https://pith.science/api/pith-number/QDOPA2RMKYYIDXAWEZOTBTP64D/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QDOPA2RMKYYIDXAWEZOTBTP64D/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QDOPA2RMKYYIDXAWEZOTBTP64D/action/storage_attestation","attest_author":"https://pith.science/pith/QDOPA2RMKYYIDXAWEZOTBTP64D/action/author_attestation","sign_citation":"https://pith.science/pith/QDOPA2RMKYYIDXAWEZOTBTP64D/action/citation_signature","submit_replication":"https://pith.science/pith/QDOPA2RMKYYIDXAWEZOTBTP64D/action/replication_record"}},"created_at":"2026-05-18T04:08:44.048915+00:00","updated_at":"2026-05-18T04:08:44.048915+00:00"}