{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:DYH5M2QUFANJ6EYXUUOKJJHBSF","short_pith_number":"pith:DYH5M2QU","canonical_record":{"source":{"id":"1910.04438","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.dis-nn","submitted_at":"2019-10-10T08:54:13Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"488a18382eece566a38fbd8e64c3384b151c5f737dd9626165910c6eb82098c2","abstract_canon_sha256":"d6e10001f5857859123d339d6116b1d5a4e72df800194b4ace9e09ac342fb8b2"},"schema_version":"1.0"},"canonical_sha256":"1e0fd66a14281a9f1317a51ca4a4e1915c3a1a5e5dba0209e7d778b40162dbd5","source":{"kind":"arxiv","id":"1910.04438","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.04438","created_at":"2026-07-05T00:57:50Z"},{"alias_kind":"arxiv_version","alias_value":"1910.04438v1","created_at":"2026-07-05T00:57:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.04438","created_at":"2026-07-05T00:57:50Z"},{"alias_kind":"pith_short_12","alias_value":"DYH5M2QUFANJ","created_at":"2026-07-05T00:57:50Z"},{"alias_kind":"pith_short_16","alias_value":"DYH5M2QUFANJ6EYX","created_at":"2026-07-05T00:57:50Z"},{"alias_kind":"pith_short_8","alias_value":"DYH5M2QU","created_at":"2026-07-05T00:57:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:DYH5M2QUFANJ6EYXUUOKJJHBSF","target":"record","payload":{"canonical_record":{"source":{"id":"1910.04438","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.dis-nn","submitted_at":"2019-10-10T08:54:13Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"488a18382eece566a38fbd8e64c3384b151c5f737dd9626165910c6eb82098c2","abstract_canon_sha256":"d6e10001f5857859123d339d6116b1d5a4e72df800194b4ace9e09ac342fb8b2"},"schema_version":"1.0"},"canonical_sha256":"1e0fd66a14281a9f1317a51ca4a4e1915c3a1a5e5dba0209e7d778b40162dbd5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:57:50.365848Z","signature_b64":"1h/XyHo0BTKB3yqaEgxSX+DN16jOvswMLmlFhrVVSEl2t0Ve1Haea3otTbghibNKej3W1VBmGwKNamF+Z3pIAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1e0fd66a14281a9f1317a51ca4a4e1915c3a1a5e5dba0209e7d778b40162dbd5","last_reissued_at":"2026-07-05T00:57:50.365426Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:57:50.365426Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1910.04438","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":"2026-07-05T00:57:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rDTG/1qjy+V/W3RYK6SGCKIifY2RjSyMFmcyKCQIRLP8ZQy4QDCShh49aIzKoLSdN2cCf+il66hbnL+TaaVZAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T20:02:36.770713Z"},"content_sha256":"7a4972a83a92a6790b585c2519c1b77efc75f825a0f9d3c5e9f417bdc2c54691","schema_version":"1.0","event_id":"sha256:7a4972a83a92a6790b585c2519c1b77efc75f825a0f9d3c5e9f417bdc2c54691"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:DYH5M2QUFANJ6EYXUUOKJJHBSF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Molecular and polymeric amorphous forms in dense SO$_2$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.dis-nn","authors_text":"Eugene Gregoryanz, Federico Gorelli, Huichao Zhang, Mario Santoro, Ondrej T\\'oth, Philip Dalladay-Simpson, Roberto Bini, Roman Marto\\v{n}\\'ak, Simone De Panfilis, Xiao-Di Liu","submitted_at":"2019-10-10T08:54:13Z","abstract_excerpt":"We report here a study of reversible pressure-induced structural transformation between two amorphous forms of SO$_2$: molecular at pressures below 26 GPa and polymeric above this pressure, at temperatures of 77 - 300 K. The transformation was observed by Raman spectroscopy and x-ray diffraction in a diamond anvil cell. The same phenomenon was also observed in ab initio molecular dynamics simulations where both forward and reverse transitions were detected, allowing to analyze in detail the atomic structure of both phases. The high-pressure polymeric amorphous form was found to consist mainly "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.04438","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/1910.04438/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":"2026-07-05T00:57:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B3/dmuf0DaUJPEWEgb9lMrOfBbMx9NvgGzI/i5VFd7OXJr4sZIzee0A2ceQVNdDye24T+Dl+SMWXiGn3EzbZCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T20:02:36.771299Z"},"content_sha256":"ad8d85af26a292636b8210d20fbaed6424b3edcd387c304cec307b8fd4f65576","schema_version":"1.0","event_id":"sha256:ad8d85af26a292636b8210d20fbaed6424b3edcd387c304cec307b8fd4f65576"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DYH5M2QUFANJ6EYXUUOKJJHBSF/bundle.json","state_url":"https://pith.science/pith/DYH5M2QUFANJ6EYXUUOKJJHBSF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DYH5M2QUFANJ6EYXUUOKJJHBSF/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":"2026-08-19T20:02:36Z","links":{"resolver":"https://pith.science/pith/DYH5M2QUFANJ6EYXUUOKJJHBSF","bundle":"https://pith.science/pith/DYH5M2QUFANJ6EYXUUOKJJHBSF/bundle.json","state":"https://pith.science/pith/DYH5M2QUFANJ6EYXUUOKJJHBSF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DYH5M2QUFANJ6EYXUUOKJJHBSF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:DYH5M2QUFANJ6EYXUUOKJJHBSF","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":"d6e10001f5857859123d339d6116b1d5a4e72df800194b4ace9e09ac342fb8b2","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.dis-nn","submitted_at":"2019-10-10T08:54:13Z","title_canon_sha256":"488a18382eece566a38fbd8e64c3384b151c5f737dd9626165910c6eb82098c2"},"schema_version":"1.0","source":{"id":"1910.04438","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.04438","created_at":"2026-07-05T00:57:50Z"},{"alias_kind":"arxiv_version","alias_value":"1910.04438v1","created_at":"2026-07-05T00:57:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.04438","created_at":"2026-07-05T00:57:50Z"},{"alias_kind":"pith_short_12","alias_value":"DYH5M2QUFANJ","created_at":"2026-07-05T00:57:50Z"},{"alias_kind":"pith_short_16","alias_value":"DYH5M2QUFANJ6EYX","created_at":"2026-07-05T00:57:50Z"},{"alias_kind":"pith_short_8","alias_value":"DYH5M2QU","created_at":"2026-07-05T00:57:50Z"}],"graph_snapshots":[{"event_id":"sha256:ad8d85af26a292636b8210d20fbaed6424b3edcd387c304cec307b8fd4f65576","target":"graph","created_at":"2026-07-05T00:57:50Z","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/1910.04438/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report here a study of reversible pressure-induced structural transformation between two amorphous forms of SO$_2$: molecular at pressures below 26 GPa and polymeric above this pressure, at temperatures of 77 - 300 K. The transformation was observed by Raman spectroscopy and x-ray diffraction in a diamond anvil cell. The same phenomenon was also observed in ab initio molecular dynamics simulations where both forward and reverse transitions were detected, allowing to analyze in detail the atomic structure of both phases. The high-pressure polymeric amorphous form was found to consist mainly ","authors_text":"Eugene Gregoryanz, Federico Gorelli, Huichao Zhang, Mario Santoro, Ondrej T\\'oth, Philip Dalladay-Simpson, Roberto Bini, Roman Marto\\v{n}\\'ak, Simone De Panfilis, Xiao-Di Liu","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.dis-nn","submitted_at":"2019-10-10T08:54:13Z","title":"Molecular and polymeric amorphous forms in dense SO$_2$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.04438","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":"sha256:7a4972a83a92a6790b585c2519c1b77efc75f825a0f9d3c5e9f417bdc2c54691","target":"record","created_at":"2026-07-05T00:57:50Z","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":"d6e10001f5857859123d339d6116b1d5a4e72df800194b4ace9e09ac342fb8b2","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.dis-nn","submitted_at":"2019-10-10T08:54:13Z","title_canon_sha256":"488a18382eece566a38fbd8e64c3384b151c5f737dd9626165910c6eb82098c2"},"schema_version":"1.0","source":{"id":"1910.04438","kind":"arxiv","version":1}},"canonical_sha256":"1e0fd66a14281a9f1317a51ca4a4e1915c3a1a5e5dba0209e7d778b40162dbd5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1e0fd66a14281a9f1317a51ca4a4e1915c3a1a5e5dba0209e7d778b40162dbd5","first_computed_at":"2026-07-05T00:57:50.365426Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:57:50.365426Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1h/XyHo0BTKB3yqaEgxSX+DN16jOvswMLmlFhrVVSEl2t0Ve1Haea3otTbghibNKej3W1VBmGwKNamF+Z3pIAw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:57:50.365848Z","signed_message":"canonical_sha256_bytes"},"source_id":"1910.04438","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7a4972a83a92a6790b585c2519c1b77efc75f825a0f9d3c5e9f417bdc2c54691","sha256:ad8d85af26a292636b8210d20fbaed6424b3edcd387c304cec307b8fd4f65576"],"state_sha256":"581e838eddbc4e8a678e5e211dd1513a29bcc152ccfe231859de7434936f9089"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vZBnB8YMPiXLQ5Y8wJMMhtNd6A/HBhFYsANUzIRxT1WIri5rv87xGZmYSnjbhvHeuug6/tGvCxap63xH9bazBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T20:02:36.776710Z","bundle_sha256":"268a63d48db5e34a2e94b60da087de71826fc30d6ac8f510620c4bfd85c17894"}}