{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:TFR42APTFWH3QY3EBO2KNXGDQM","short_pith_number":"pith:TFR42APT","canonical_record":{"source":{"id":"1604.05062","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2016-04-18T09:59:51Z","cross_cats_sorted":["cond-mat.other"],"title_canon_sha256":"ff4f9451e3d7fa543ff09faa6ce0ddef090909ef30b566a00fe6feb2192150e8","abstract_canon_sha256":"fe1c17445b3527ee846984b54ba683624ac9c379b9b6d24640334be3ef1dee89"},"schema_version":"1.0"},"canonical_sha256":"9963cd01f32d8fb863640bb4a6dcc3831510e2e2aee59e0fcb207558d97882f5","source":{"kind":"arxiv","id":"1604.05062","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.05062","created_at":"2026-05-18T01:16:55Z"},{"alias_kind":"arxiv_version","alias_value":"1604.05062v1","created_at":"2026-05-18T01:16:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.05062","created_at":"2026-05-18T01:16:55Z"},{"alias_kind":"pith_short_12","alias_value":"TFR42APTFWH3","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_16","alias_value":"TFR42APTFWH3QY3E","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_8","alias_value":"TFR42APT","created_at":"2026-05-18T12:30:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:TFR42APTFWH3QY3EBO2KNXGDQM","target":"record","payload":{"canonical_record":{"source":{"id":"1604.05062","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2016-04-18T09:59:51Z","cross_cats_sorted":["cond-mat.other"],"title_canon_sha256":"ff4f9451e3d7fa543ff09faa6ce0ddef090909ef30b566a00fe6feb2192150e8","abstract_canon_sha256":"fe1c17445b3527ee846984b54ba683624ac9c379b9b6d24640334be3ef1dee89"},"schema_version":"1.0"},"canonical_sha256":"9963cd01f32d8fb863640bb4a6dcc3831510e2e2aee59e0fcb207558d97882f5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:16:55.862208Z","signature_b64":"i7MfW40lwsCUxcG9BKnvQ+xxsHNoUrIPVQHxNh5NGQ1Af/abU4k2p0zpQ7pMoPWokKXFsFtPFIGOhprbxIP/Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9963cd01f32d8fb863640bb4a6dcc3831510e2e2aee59e0fcb207558d97882f5","last_reissued_at":"2026-05-18T01:16:55.861692Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:16:55.861692Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1604.05062","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":"2026-05-18T01:16:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9i6QeaQqs7fJ2pu5wGXjuB3+qVnZVgYYsQiZcC4QGbhAAQS5rzZFSz/4TZ41aH7/JCDxkw1REU51il3Rc1ZTDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T07:17:30.147035Z"},"content_sha256":"60922cc3d52d5baceb10f7f74f2be3b6c8f7790d8f13c1f2fd88f6f4ec307c1f","schema_version":"1.0","event_id":"sha256:60922cc3d52d5baceb10f7f74f2be3b6c8f7790d8f13c1f2fd88f6f4ec307c1f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:TFR42APTFWH3QY3EBO2KNXGDQM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fragile-to-strong transition in liquid silica","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.other"],"primary_cat":"cond-mat.soft","authors_text":"Barbara Drossel, Julian Geske, Michael Vogel","submitted_at":"2016-04-18T09:59:51Z","abstract_excerpt":"We investigate anomalies in liquid silica with molecular dynamics simulations and present evidence for a fragile-to-strong transition at around 3100 K-3300 K. To this purpose, we studied the structure and dynamical properties of silica over a wide temperature range, finding four indicators of a fragile-to-strong transition. First, there is a density minimum at around 3000 K and a density maximum at 4700 K. The turning point is at 3400 K. Second, the local structure characterized by the tetrahedral order parameter changes dramatically around 3000 K from a higher-ordered, lower-density phase to "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.05062","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:16:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K4ca9f7iWtsvgENm1rosVtVSg3LVw+ZYzZQaGB9/v1dMH6DOU0iDIk3ShCXWvKgYuFhAZlVS14SoJcTXOC9EBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T07:17:30.147621Z"},"content_sha256":"d0f5e5964f3a3c400acab079d8d84610214e2f7655304ae9de1d79d08ebac6d1","schema_version":"1.0","event_id":"sha256:d0f5e5964f3a3c400acab079d8d84610214e2f7655304ae9de1d79d08ebac6d1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TFR42APTFWH3QY3EBO2KNXGDQM/bundle.json","state_url":"https://pith.science/pith/TFR42APTFWH3QY3EBO2KNXGDQM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TFR42APTFWH3QY3EBO2KNXGDQM/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":"2026-05-30T07:17:30Z","links":{"resolver":"https://pith.science/pith/TFR42APTFWH3QY3EBO2KNXGDQM","bundle":"https://pith.science/pith/TFR42APTFWH3QY3EBO2KNXGDQM/bundle.json","state":"https://pith.science/pith/TFR42APTFWH3QY3EBO2KNXGDQM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TFR42APTFWH3QY3EBO2KNXGDQM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:TFR42APTFWH3QY3EBO2KNXGDQM","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":"fe1c17445b3527ee846984b54ba683624ac9c379b9b6d24640334be3ef1dee89","cross_cats_sorted":["cond-mat.other"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2016-04-18T09:59:51Z","title_canon_sha256":"ff4f9451e3d7fa543ff09faa6ce0ddef090909ef30b566a00fe6feb2192150e8"},"schema_version":"1.0","source":{"id":"1604.05062","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.05062","created_at":"2026-05-18T01:16:55Z"},{"alias_kind":"arxiv_version","alias_value":"1604.05062v1","created_at":"2026-05-18T01:16:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.05062","created_at":"2026-05-18T01:16:55Z"},{"alias_kind":"pith_short_12","alias_value":"TFR42APTFWH3","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_16","alias_value":"TFR42APTFWH3QY3E","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_8","alias_value":"TFR42APT","created_at":"2026-05-18T12:30:44Z"}],"graph_snapshots":[{"event_id":"sha256:d0f5e5964f3a3c400acab079d8d84610214e2f7655304ae9de1d79d08ebac6d1","target":"graph","created_at":"2026-05-18T01:16:55Z","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":"We investigate anomalies in liquid silica with molecular dynamics simulations and present evidence for a fragile-to-strong transition at around 3100 K-3300 K. To this purpose, we studied the structure and dynamical properties of silica over a wide temperature range, finding four indicators of a fragile-to-strong transition. First, there is a density minimum at around 3000 K and a density maximum at 4700 K. The turning point is at 3400 K. Second, the local structure characterized by the tetrahedral order parameter changes dramatically around 3000 K from a higher-ordered, lower-density phase to ","authors_text":"Barbara Drossel, Julian Geske, Michael Vogel","cross_cats":["cond-mat.other"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2016-04-18T09:59:51Z","title":"Fragile-to-strong transition in liquid silica"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.05062","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":"sha256:60922cc3d52d5baceb10f7f74f2be3b6c8f7790d8f13c1f2fd88f6f4ec307c1f","target":"record","created_at":"2026-05-18T01:16:55Z","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":"fe1c17445b3527ee846984b54ba683624ac9c379b9b6d24640334be3ef1dee89","cross_cats_sorted":["cond-mat.other"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2016-04-18T09:59:51Z","title_canon_sha256":"ff4f9451e3d7fa543ff09faa6ce0ddef090909ef30b566a00fe6feb2192150e8"},"schema_version":"1.0","source":{"id":"1604.05062","kind":"arxiv","version":1}},"canonical_sha256":"9963cd01f32d8fb863640bb4a6dcc3831510e2e2aee59e0fcb207558d97882f5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9963cd01f32d8fb863640bb4a6dcc3831510e2e2aee59e0fcb207558d97882f5","first_computed_at":"2026-05-18T01:16:55.861692Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:16:55.861692Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"i7MfW40lwsCUxcG9BKnvQ+xxsHNoUrIPVQHxNh5NGQ1Af/abU4k2p0zpQ7pMoPWokKXFsFtPFIGOhprbxIP/Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:16:55.862208Z","signed_message":"canonical_sha256_bytes"},"source_id":"1604.05062","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:60922cc3d52d5baceb10f7f74f2be3b6c8f7790d8f13c1f2fd88f6f4ec307c1f","sha256:d0f5e5964f3a3c400acab079d8d84610214e2f7655304ae9de1d79d08ebac6d1"],"state_sha256":"e50192ed83c3a8b503bc2d7e7e274e3c88e1cc222a680d8365ce3ebefee8a2ac"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GA5+43VMocKkxhGUGIcK0E2mObEAjg6/0eIgQMW59bLNniSRGH12ZouU5naF5/2m3VK8dKon7skv35YJ0memDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T07:17:30.150490Z","bundle_sha256":"ace172f12162b930b6e499d37775a51b9fb0107744477dcf0460c0bab29527df"}}