{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:KWWRNWDYKBXM55T7JHNAMQRAGC","short_pith_number":"pith:KWWRNWDY","canonical_record":{"source":{"id":"1307.3854","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-07-15T08:48:54Z","cross_cats_sorted":["physics.chem-ph"],"title_canon_sha256":"5da94f852401abe8330eefb07853bdb4ece426ff4f8f540d0cc9d21e81ecd527","abstract_canon_sha256":"ba3a49a5998b49bbadb4f99084c03435241685dcf250238fcc23962571dd86a7"},"schema_version":"1.0"},"canonical_sha256":"55ad16d878506ecef67f49da06422030ac776812e5acf4b8bbf27ffd23189de2","source":{"kind":"arxiv","id":"1307.3854","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.3854","created_at":"2026-05-18T01:48:50Z"},{"alias_kind":"arxiv_version","alias_value":"1307.3854v3","created_at":"2026-05-18T01:48:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.3854","created_at":"2026-05-18T01:48:50Z"},{"alias_kind":"pith_short_12","alias_value":"KWWRNWDYKBXM","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"KWWRNWDYKBXM55T7","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"KWWRNWDY","created_at":"2026-05-18T12:27:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:KWWRNWDYKBXM55T7JHNAMQRAGC","target":"record","payload":{"canonical_record":{"source":{"id":"1307.3854","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-07-15T08:48:54Z","cross_cats_sorted":["physics.chem-ph"],"title_canon_sha256":"5da94f852401abe8330eefb07853bdb4ece426ff4f8f540d0cc9d21e81ecd527","abstract_canon_sha256":"ba3a49a5998b49bbadb4f99084c03435241685dcf250238fcc23962571dd86a7"},"schema_version":"1.0"},"canonical_sha256":"55ad16d878506ecef67f49da06422030ac776812e5acf4b8bbf27ffd23189de2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:48:50.330739Z","signature_b64":"7wblC04BEGt3lte+6fAulRvIxKuMI2TnJZB99zNLy/yELv2s0bs7YGYCm8kQNeGI2neEcQ1CPE1QjvG6yAGIAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"55ad16d878506ecef67f49da06422030ac776812e5acf4b8bbf27ffd23189de2","last_reissued_at":"2026-05-18T01:48:50.330023Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:48:50.330023Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1307.3854","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":"2026-05-18T01:48:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8OaVunux2LX62T3ihf7+3dPGaOGKj31Ny47rN4M9dCThbeWOCj+M3GfGTXkUuzRvVCwpTDyOVNqcZZhhX3hQBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T12:09:27.782175Z"},"content_sha256":"6841b8d3095b15cbe8430c76b1d991ee0a02f394842519e25bebc4e2d353dc08","schema_version":"1.0","event_id":"sha256:6841b8d3095b15cbe8430c76b1d991ee0a02f394842519e25bebc4e2d353dc08"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:KWWRNWDYKBXM55T7JHNAMQRAGC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Structural evolution in high-pressure amorphous CO$_2$ from \\textit{ab initio} molecular dynamics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.chem-ph"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Du\\v{s}an Pla\\v{s}ienka, Roman Marto\\v{n}\\'ak","submitted_at":"2013-07-15T08:48:54Z","abstract_excerpt":"By employing $ab$ $initio$ molecular dynamics simulations at constant pressure, we investigated behavior of amorphous carbon dioxide between 0-100 GPa and 200-500 K and found several new amorphous forms. We focused on evolution of the high-pressure polymeric amorphous form known as a-carbonia on its way down to zero pressure, where it eventually converts into a molecular amorphous solid. During decompression, two nonmolecular amorphous forms with different proportion of three and four-coordinated carbons and two mixed molecular-nonmolecular forms were observed. Transformation from a-carbonia t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.3854","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":"2026-05-18T01:48:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FRXpoWkFx7UZRvgsWaI0Xgj7LzdjnmBCgrcL5+vTghGaS1EqmPqcw8+HqBHLl0lSR+uP2OPdfV9a/LtndK0qBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T12:09:27.782543Z"},"content_sha256":"cec38576df79d7345e2eec28036af74d9b9adc16842d520c0815ec9737d18503","schema_version":"1.0","event_id":"sha256:cec38576df79d7345e2eec28036af74d9b9adc16842d520c0815ec9737d18503"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KWWRNWDYKBXM55T7JHNAMQRAGC/bundle.json","state_url":"https://pith.science/pith/KWWRNWDYKBXM55T7JHNAMQRAGC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KWWRNWDYKBXM55T7JHNAMQRAGC/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":"2026-06-05T12:09:27Z","links":{"resolver":"https://pith.science/pith/KWWRNWDYKBXM55T7JHNAMQRAGC","bundle":"https://pith.science/pith/KWWRNWDYKBXM55T7JHNAMQRAGC/bundle.json","state":"https://pith.science/pith/KWWRNWDYKBXM55T7JHNAMQRAGC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KWWRNWDYKBXM55T7JHNAMQRAGC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:KWWRNWDYKBXM55T7JHNAMQRAGC","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":"ba3a49a5998b49bbadb4f99084c03435241685dcf250238fcc23962571dd86a7","cross_cats_sorted":["physics.chem-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-07-15T08:48:54Z","title_canon_sha256":"5da94f852401abe8330eefb07853bdb4ece426ff4f8f540d0cc9d21e81ecd527"},"schema_version":"1.0","source":{"id":"1307.3854","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.3854","created_at":"2026-05-18T01:48:50Z"},{"alias_kind":"arxiv_version","alias_value":"1307.3854v3","created_at":"2026-05-18T01:48:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.3854","created_at":"2026-05-18T01:48:50Z"},{"alias_kind":"pith_short_12","alias_value":"KWWRNWDYKBXM","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"KWWRNWDYKBXM55T7","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"KWWRNWDY","created_at":"2026-05-18T12:27:51Z"}],"graph_snapshots":[{"event_id":"sha256:cec38576df79d7345e2eec28036af74d9b9adc16842d520c0815ec9737d18503","target":"graph","created_at":"2026-05-18T01:48:50Z","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"},"paper":{"abstract_excerpt":"By employing $ab$ $initio$ molecular dynamics simulations at constant pressure, we investigated behavior of amorphous carbon dioxide between 0-100 GPa and 200-500 K and found several new amorphous forms. We focused on evolution of the high-pressure polymeric amorphous form known as a-carbonia on its way down to zero pressure, where it eventually converts into a molecular amorphous solid. During decompression, two nonmolecular amorphous forms with different proportion of three and four-coordinated carbons and two mixed molecular-nonmolecular forms were observed. Transformation from a-carbonia t","authors_text":"Du\\v{s}an Pla\\v{s}ienka, Roman Marto\\v{n}\\'ak","cross_cats":["physics.chem-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-07-15T08:48:54Z","title":"Structural evolution in high-pressure amorphous CO$_2$ from \\textit{ab initio} molecular dynamics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.3854","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":"sha256:6841b8d3095b15cbe8430c76b1d991ee0a02f394842519e25bebc4e2d353dc08","target":"record","created_at":"2026-05-18T01:48:50Z","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":"ba3a49a5998b49bbadb4f99084c03435241685dcf250238fcc23962571dd86a7","cross_cats_sorted":["physics.chem-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-07-15T08:48:54Z","title_canon_sha256":"5da94f852401abe8330eefb07853bdb4ece426ff4f8f540d0cc9d21e81ecd527"},"schema_version":"1.0","source":{"id":"1307.3854","kind":"arxiv","version":3}},"canonical_sha256":"55ad16d878506ecef67f49da06422030ac776812e5acf4b8bbf27ffd23189de2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"55ad16d878506ecef67f49da06422030ac776812e5acf4b8bbf27ffd23189de2","first_computed_at":"2026-05-18T01:48:50.330023Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:48:50.330023Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7wblC04BEGt3lte+6fAulRvIxKuMI2TnJZB99zNLy/yELv2s0bs7YGYCm8kQNeGI2neEcQ1CPE1QjvG6yAGIAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:48:50.330739Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.3854","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6841b8d3095b15cbe8430c76b1d991ee0a02f394842519e25bebc4e2d353dc08","sha256:cec38576df79d7345e2eec28036af74d9b9adc16842d520c0815ec9737d18503"],"state_sha256":"4e1c83801179bbcfba245d61423ce7590ebf5a0717d6f042f1468060b000c817"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"epP/b830kT2asBCSHOlJhRBKXGge4AEVr2xcE5vLybK7xhbxp3aeudV6e6SNG7vOcptcGXoyS4JoiGDV/xxsBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T12:09:27.784444Z","bundle_sha256":"f3b96aeed31a01adbfdb4df5e6fec8f4876e5a3d1257bd23cf4cfc326be243a7"}}