{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:IXO3GILKTCX3F45JNXMW4FCAWQ","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":"b97cdeb67756910100659681c17e3fcd8febb57eda6353d4ce838a762f0149f5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2018-02-23T16:21:35Z","title_canon_sha256":"e36f3751499c9bcec66452d0fac36f6e45a830ecce491bfd75fd9fbedd794c03"},"schema_version":"1.0","source":{"id":"1802.09397","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.09397","created_at":"2026-05-18T00:22:33Z"},{"alias_kind":"arxiv_version","alias_value":"1802.09397v1","created_at":"2026-05-18T00:22:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.09397","created_at":"2026-05-18T00:22:33Z"},{"alias_kind":"pith_short_12","alias_value":"IXO3GILKTCX3","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"IXO3GILKTCX3F45J","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"IXO3GILK","created_at":"2026-05-18T12:32:31Z"}],"graph_snapshots":[{"event_id":"sha256:f5a1b3afaaf78a36182439cbfe67b35418b09793e6d1aa0214f041cc562c8b58","target":"graph","created_at":"2026-05-18T00:22:33Z","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":"This is the documentation of the tomographic X-ray data of emoji phantom made available at https://zenodo.org/record/1183532#.WpA35Y5rIy1. The data can be freely used for scientific purposes with appropriate references to the data and to this document in arxiv.org. The data set consists of (1) the X-ray sinogram of a single 2D slice of 33 emoji faces (contains 15 different emoji faces) made by small squared ceramic stones and (2) the corresponding static and dynamic measurement matrices modeling the linear operation of the X-ray transform. Each of these sinograms was obtained from a measured 6","authors_text":"Alexander Meaney, Samuli Siltanen, Zenith Purisha","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2018-02-23T16:21:35Z","title":"Tomographic X-ray data of 3D emoji"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.09397","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":"sha256:0093ba407af9e7444309d5be2f5586c9e67a49ec28256f4c95d942449e0b6127","target":"record","created_at":"2026-05-18T00:22:33Z","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":"b97cdeb67756910100659681c17e3fcd8febb57eda6353d4ce838a762f0149f5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2018-02-23T16:21:35Z","title_canon_sha256":"e36f3751499c9bcec66452d0fac36f6e45a830ecce491bfd75fd9fbedd794c03"},"schema_version":"1.0","source":{"id":"1802.09397","kind":"arxiv","version":1}},"canonical_sha256":"45ddb3216a98afb2f3a96dd96e1440b41bacc2e85d0003f3bea2029971d42e2b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"45ddb3216a98afb2f3a96dd96e1440b41bacc2e85d0003f3bea2029971d42e2b","first_computed_at":"2026-05-18T00:22:33.800587Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:22:33.800587Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wX6R+0aTA2gm/9J5m1iBnz3N8yNBWq8R/4R/9ZTpKRNNHIIWHC/RBVHDf8j3V65/DjwpLmdWpVENshahA9NCBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:22:33.801042Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.09397","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0093ba407af9e7444309d5be2f5586c9e67a49ec28256f4c95d942449e0b6127","sha256:f5a1b3afaaf78a36182439cbfe67b35418b09793e6d1aa0214f041cc562c8b58"],"state_sha256":"0107c34478549fe2319066e55f06e832891ecd4bc661fa0ee5596e4327ed44c4"}