{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:4QYG2FSB3CYP7N26A6DDIWQIFS","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":"671515446407ae82cd002f31013b69129c02031ccb757cc4be13d6df3ccc3302","cross_cats_sorted":["stat.AP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2019-09-05T08:27:55Z","title_canon_sha256":"61645593f698bba080edfc5bdf0d8b8e7d89ddd37465a2798a6edf9fe12904ed"},"schema_version":"1.0","source":{"id":"1909.02256","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1909.02256","created_at":"2026-07-05T00:33:16Z"},{"alias_kind":"arxiv_version","alias_value":"1909.02256v3","created_at":"2026-07-05T00:33:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1909.02256","created_at":"2026-07-05T00:33:16Z"},{"alias_kind":"pith_short_12","alias_value":"4QYG2FSB3CYP","created_at":"2026-07-05T00:33:16Z"},{"alias_kind":"pith_short_16","alias_value":"4QYG2FSB3CYP7N26","created_at":"2026-07-05T00:33:16Z"},{"alias_kind":"pith_short_8","alias_value":"4QYG2FSB","created_at":"2026-07-05T00:33:16Z"}],"graph_snapshots":[{"event_id":"sha256:c0bd0761b51a2e2ea163433984e14617577049bbfbe5408cea5dec57551660d9","target":"graph","created_at":"2026-07-05T00:33:16Z","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/1909.02256/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Nano-CT (computerized tomography) has emerged as a non-destructive high-resolution cross-sectional imaging technique to effectively study the sub-$\\mu$m pore structure of shale, which is of fundamental importance to the evaluation and development of shale oil and gas. Nano-CT poses unique challenges to the inverse problem of reconstructing the 3D structure due to the lower signal-to-noise ratio (than Micro-CT) at the nano-scale, increased sensitivity to the misaligned geometry caused by the movement of object manipulator, limited sample size, and a larger volume of data at higher resolution. I","authors_text":"Meng Li, Wei Tang","cross_cats":["stat.AP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2019-09-05T08:27:55Z","title":"Scalable Double Regularization for 3D Nano-CT Reconstruction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1909.02256","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":"sha256:7d6ba51ab23679d891643e1e0a34162db5232c2d41022076441cec5e4d32c282","target":"record","created_at":"2026-07-05T00:33:16Z","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":"671515446407ae82cd002f31013b69129c02031ccb757cc4be13d6df3ccc3302","cross_cats_sorted":["stat.AP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2019-09-05T08:27:55Z","title_canon_sha256":"61645593f698bba080edfc5bdf0d8b8e7d89ddd37465a2798a6edf9fe12904ed"},"schema_version":"1.0","source":{"id":"1909.02256","kind":"arxiv","version":3}},"canonical_sha256":"e4306d1641d8b0ffb75e0786345a082ca1068a197a4a79e786496f3bf2c2efb4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e4306d1641d8b0ffb75e0786345a082ca1068a197a4a79e786496f3bf2c2efb4","first_computed_at":"2026-07-05T00:33:16.020981Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:33:16.020981Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LUpAo9rgnnyEfoaxu9h/lq9wt46nL30KlQhOxk2UHUhSDnGjcmwc64yi8fZ7HlFcKypXGza+ZZWn48upGPzwBg==","signature_status":"signed_v1","signed_at":"2026-07-05T00:33:16.021484Z","signed_message":"canonical_sha256_bytes"},"source_id":"1909.02256","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7d6ba51ab23679d891643e1e0a34162db5232c2d41022076441cec5e4d32c282","sha256:c0bd0761b51a2e2ea163433984e14617577049bbfbe5408cea5dec57551660d9"],"state_sha256":"e11ccc2ae13fa24d91e61bcf740a44f6d55178e06c871c6be709eed613a75a8f"}