{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:336DXAUKJSNMIGECKOEVV66DWP","short_pith_number":"pith:336DXAUK","canonical_record":{"source":{"id":"1306.2395","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-06-11T01:07:38Z","cross_cats_sorted":[],"title_canon_sha256":"6b0fb7644ff0f681c1fcf4dce9c31e00dcd46c2215e2247aa4e2c38471052a8a","abstract_canon_sha256":"76b36cf1fe1fddde78f32a26131f28f47cc5e65fd17099c935e7042f5d6dcb68"},"schema_version":"1.0"},"canonical_sha256":"defc3b828a4c9ac4188253895afbc3b3d03461b4a8728d106212ac424b78fa29","source":{"kind":"arxiv","id":"1306.2395","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.2395","created_at":"2026-05-18T02:48:37Z"},{"alias_kind":"arxiv_version","alias_value":"1306.2395v2","created_at":"2026-05-18T02:48:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.2395","created_at":"2026-05-18T02:48:37Z"},{"alias_kind":"pith_short_12","alias_value":"336DXAUKJSNM","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"336DXAUKJSNMIGEC","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"336DXAUK","created_at":"2026-05-18T12:27:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:336DXAUKJSNMIGECKOEVV66DWP","target":"record","payload":{"canonical_record":{"source":{"id":"1306.2395","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-06-11T01:07:38Z","cross_cats_sorted":[],"title_canon_sha256":"6b0fb7644ff0f681c1fcf4dce9c31e00dcd46c2215e2247aa4e2c38471052a8a","abstract_canon_sha256":"76b36cf1fe1fddde78f32a26131f28f47cc5e65fd17099c935e7042f5d6dcb68"},"schema_version":"1.0"},"canonical_sha256":"defc3b828a4c9ac4188253895afbc3b3d03461b4a8728d106212ac424b78fa29","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:48:37.429450Z","signature_b64":"tomqbmNRU4MbR1rkmfx4tbiF+rOrh7OybE4sxBcSBAmnSewH0IYubhCTkV+j+eoxDnqx+pRPRmSk8UOvQGx2Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"defc3b828a4c9ac4188253895afbc3b3d03461b4a8728d106212ac424b78fa29","last_reissued_at":"2026-05-18T02:48:37.428788Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:48:37.428788Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.2395","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":"2026-05-18T02:48:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BYWfv8S63UBKMXashOcRopTJ5w3CAaubjeXBIsEa7+3ILrNpNEd64WmnPbX/8PrNOfAuKfW9bvP7kN/KoLi9CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T19:45:54.008754Z"},"content_sha256":"22732d9a4265242732304fa2d393a590f34c1258f04cfd308402d815d23896bb","schema_version":"1.0","event_id":"sha256:22732d9a4265242732304fa2d393a590f34c1258f04cfd308402d815d23896bb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:336DXAUKJSNMIGECKOEVV66DWP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Pressure-induced softening as a common feature of framework structures that have negative thermal expansion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Hong Fang, Martin T. Dove","submitted_at":"2013-06-11T01:07:38Z","abstract_excerpt":"Results of a series of molecular dynamics simulations of cubic siliceous zeolites suggest that pressure-induced softening -- the phenomenon in which a material becomes progressively more compressible under pressure -- is likely to be a common feature of framework materials that show negative thermal expansion. The correlation between the negative thermal expansion and the pressure-induced softening is investigated on the basis of thermodynamics."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.2395","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":"2026-05-18T02:48:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KeOqiGNFh6kl9QXlEkF/wEfc8TAMtQJ/ADDxqEbB10QCeQvQk61qBGi24WZNkIlYDDFT2sEdFgUy3tE4mmWKAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T19:45:54.009120Z"},"content_sha256":"40623671dd519a95ac741e8780f7cdd13acc5695ea99e4725959739e9162195a","schema_version":"1.0","event_id":"sha256:40623671dd519a95ac741e8780f7cdd13acc5695ea99e4725959739e9162195a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/336DXAUKJSNMIGECKOEVV66DWP/bundle.json","state_url":"https://pith.science/pith/336DXAUKJSNMIGECKOEVV66DWP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/336DXAUKJSNMIGECKOEVV66DWP/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":"2026-06-02T19:45:54Z","links":{"resolver":"https://pith.science/pith/336DXAUKJSNMIGECKOEVV66DWP","bundle":"https://pith.science/pith/336DXAUKJSNMIGECKOEVV66DWP/bundle.json","state":"https://pith.science/pith/336DXAUKJSNMIGECKOEVV66DWP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/336DXAUKJSNMIGECKOEVV66DWP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:336DXAUKJSNMIGECKOEVV66DWP","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":"76b36cf1fe1fddde78f32a26131f28f47cc5e65fd17099c935e7042f5d6dcb68","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-06-11T01:07:38Z","title_canon_sha256":"6b0fb7644ff0f681c1fcf4dce9c31e00dcd46c2215e2247aa4e2c38471052a8a"},"schema_version":"1.0","source":{"id":"1306.2395","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.2395","created_at":"2026-05-18T02:48:37Z"},{"alias_kind":"arxiv_version","alias_value":"1306.2395v2","created_at":"2026-05-18T02:48:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.2395","created_at":"2026-05-18T02:48:37Z"},{"alias_kind":"pith_short_12","alias_value":"336DXAUKJSNM","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"336DXAUKJSNMIGEC","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"336DXAUK","created_at":"2026-05-18T12:27:32Z"}],"graph_snapshots":[{"event_id":"sha256:40623671dd519a95ac741e8780f7cdd13acc5695ea99e4725959739e9162195a","target":"graph","created_at":"2026-05-18T02:48:37Z","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":"Results of a series of molecular dynamics simulations of cubic siliceous zeolites suggest that pressure-induced softening -- the phenomenon in which a material becomes progressively more compressible under pressure -- is likely to be a common feature of framework materials that show negative thermal expansion. The correlation between the negative thermal expansion and the pressure-induced softening is investigated on the basis of thermodynamics.","authors_text":"Hong Fang, Martin T. Dove","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-06-11T01:07:38Z","title":"Pressure-induced softening as a common feature of framework structures that have negative thermal expansion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.2395","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":"sha256:22732d9a4265242732304fa2d393a590f34c1258f04cfd308402d815d23896bb","target":"record","created_at":"2026-05-18T02:48:37Z","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":"76b36cf1fe1fddde78f32a26131f28f47cc5e65fd17099c935e7042f5d6dcb68","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-06-11T01:07:38Z","title_canon_sha256":"6b0fb7644ff0f681c1fcf4dce9c31e00dcd46c2215e2247aa4e2c38471052a8a"},"schema_version":"1.0","source":{"id":"1306.2395","kind":"arxiv","version":2}},"canonical_sha256":"defc3b828a4c9ac4188253895afbc3b3d03461b4a8728d106212ac424b78fa29","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"defc3b828a4c9ac4188253895afbc3b3d03461b4a8728d106212ac424b78fa29","first_computed_at":"2026-05-18T02:48:37.428788Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:48:37.428788Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tomqbmNRU4MbR1rkmfx4tbiF+rOrh7OybE4sxBcSBAmnSewH0IYubhCTkV+j+eoxDnqx+pRPRmSk8UOvQGx2Dw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:48:37.429450Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.2395","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:22732d9a4265242732304fa2d393a590f34c1258f04cfd308402d815d23896bb","sha256:40623671dd519a95ac741e8780f7cdd13acc5695ea99e4725959739e9162195a"],"state_sha256":"8fbfb77efadf77bcf850f79fa4d76ffd4bd3048e61fb2fd95284c3eb28368b27"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"idwWLDuwQjhpYyUdF+k3D53UNzKOxTtbidkyFdOpyRuldd/N62dgA4QywIoTd7m+Xdicjdpn2k23UjUCcrHkCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T19:45:54.011178Z","bundle_sha256":"0a666f601f24669a2c1eef56e5ec810ccc552c5fdc2ab03bf1dc963c19a01313"}}