{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:LE4OECGM6ECFZYAQISGEA4YEYS","short_pith_number":"pith:LE4OECGM","canonical_record":{"source":{"id":"2102.01024","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.HC","submitted_at":"2021-02-01T18:01:20Z","cross_cats_sorted":["cs.PL"],"title_canon_sha256":"b814b9e83a710a7eb02e80046f245def3af8b1e93b8f51c40a945e6707f8ec3d","abstract_canon_sha256":"b277b6328a4be151c517547265173b4699dd970bfe0aba30b60abd92e6af9b3c"},"schema_version":"1.0"},"canonical_sha256":"5938e208ccf1045ce010448c407304c491fabf116133486d4561f2c1dff90c4d","source":{"kind":"arxiv","id":"2102.01024","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.01024","created_at":"2026-07-05T02:11:17Z"},{"alias_kind":"arxiv_version","alias_value":"2102.01024v1","created_at":"2026-07-05T02:11:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.01024","created_at":"2026-07-05T02:11:17Z"},{"alias_kind":"pith_short_12","alias_value":"LE4OECGM6ECF","created_at":"2026-07-05T02:11:17Z"},{"alias_kind":"pith_short_16","alias_value":"LE4OECGM6ECFZYAQ","created_at":"2026-07-05T02:11:17Z"},{"alias_kind":"pith_short_8","alias_value":"LE4OECGM","created_at":"2026-07-05T02:11:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:LE4OECGM6ECFZYAQISGEA4YEYS","target":"record","payload":{"canonical_record":{"source":{"id":"2102.01024","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.HC","submitted_at":"2021-02-01T18:01:20Z","cross_cats_sorted":["cs.PL"],"title_canon_sha256":"b814b9e83a710a7eb02e80046f245def3af8b1e93b8f51c40a945e6707f8ec3d","abstract_canon_sha256":"b277b6328a4be151c517547265173b4699dd970bfe0aba30b60abd92e6af9b3c"},"schema_version":"1.0"},"canonical_sha256":"5938e208ccf1045ce010448c407304c491fabf116133486d4561f2c1dff90c4d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:11:17.743505Z","signature_b64":"PnFsc1CVBWVZIn7LcTlq3M4Qcs50KUfPhcT1x7xvXsx5yK8omPJ+LghNERjmkL+BRdNR7VtaOSCAFvqkGcwTCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5938e208ccf1045ce010448c407304c491fabf116133486d4561f2c1dff90c4d","last_reissued_at":"2026-07-05T02:11:17.743050Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:11:17.743050Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2102.01024","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":"2026-07-05T02:11:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8li9ghr8G4YqMMfAhX/NjoLY3wQrXEhWyMlqLt62H7bHYn1C5b3alDJ+9bFObB9h/GyiskEbURvIQUPJFn6xCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-25T17:59:27.097246Z"},"content_sha256":"b2b959ea07a50c5cf532adbaf36d1b1fc87744f499ab4722b2e32078fd7f6705","schema_version":"1.0","event_id":"sha256:b2b959ea07a50c5cf532adbaf36d1b1fc87744f499ab4722b2e32078fd7f6705"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:LE4OECGM6ECFZYAQISGEA4YEYS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Falx: Synthesis-Powered Visualization Authoring","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.PL"],"primary_cat":"cs.HC","authors_text":"Alvin Cheung, Amy J. Ko, Chenglong Wang, Isil Dillig, Rastislav Bodik, Yu Feng","submitted_at":"2021-02-01T18:01:20Z","abstract_excerpt":"Modern visualization tools aim to allow data analysts to easily create exploratory visualizations. When the input data layout conforms to the visualization design, users can easily specify visualizations by mapping data columns to visual channels of the design. However, when there is a mismatch between data layout and the design, users need to spend significant effort on data transformation.\n  We propose Falx, a synthesis-powered visualization tool that allows users to specify visualizations in a similarly simple way but without needing to worry about data layout. In Falx, users specify visual"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.01024","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/2102.01024/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":"2026-07-05T02:11:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"urugxGkp1TkFO9u5/Y8cpm+QlAwW6CPkv6kP5DgWdefCSeP+wpiIhIgwjpBwkuN0D4yuPj4bieSw4ZQmvnLiCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-25T17:59:27.097647Z"},"content_sha256":"213862c13114417bcd1e7c78b5016cb91768acdaa89761bd53818dae031b998d","schema_version":"1.0","event_id":"sha256:213862c13114417bcd1e7c78b5016cb91768acdaa89761bd53818dae031b998d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LE4OECGM6ECFZYAQISGEA4YEYS/bundle.json","state_url":"https://pith.science/pith/LE4OECGM6ECFZYAQISGEA4YEYS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LE4OECGM6ECFZYAQISGEA4YEYS/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":"2026-07-25T17:59:27Z","links":{"resolver":"https://pith.science/pith/LE4OECGM6ECFZYAQISGEA4YEYS","bundle":"https://pith.science/pith/LE4OECGM6ECFZYAQISGEA4YEYS/bundle.json","state":"https://pith.science/pith/LE4OECGM6ECFZYAQISGEA4YEYS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LE4OECGM6ECFZYAQISGEA4YEYS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:LE4OECGM6ECFZYAQISGEA4YEYS","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":"b277b6328a4be151c517547265173b4699dd970bfe0aba30b60abd92e6af9b3c","cross_cats_sorted":["cs.PL"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.HC","submitted_at":"2021-02-01T18:01:20Z","title_canon_sha256":"b814b9e83a710a7eb02e80046f245def3af8b1e93b8f51c40a945e6707f8ec3d"},"schema_version":"1.0","source":{"id":"2102.01024","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.01024","created_at":"2026-07-05T02:11:17Z"},{"alias_kind":"arxiv_version","alias_value":"2102.01024v1","created_at":"2026-07-05T02:11:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.01024","created_at":"2026-07-05T02:11:17Z"},{"alias_kind":"pith_short_12","alias_value":"LE4OECGM6ECF","created_at":"2026-07-05T02:11:17Z"},{"alias_kind":"pith_short_16","alias_value":"LE4OECGM6ECFZYAQ","created_at":"2026-07-05T02:11:17Z"},{"alias_kind":"pith_short_8","alias_value":"LE4OECGM","created_at":"2026-07-05T02:11:17Z"}],"graph_snapshots":[{"event_id":"sha256:213862c13114417bcd1e7c78b5016cb91768acdaa89761bd53818dae031b998d","target":"graph","created_at":"2026-07-05T02:11:17Z","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/2102.01024/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Modern visualization tools aim to allow data analysts to easily create exploratory visualizations. When the input data layout conforms to the visualization design, users can easily specify visualizations by mapping data columns to visual channels of the design. However, when there is a mismatch between data layout and the design, users need to spend significant effort on data transformation.\n  We propose Falx, a synthesis-powered visualization tool that allows users to specify visualizations in a similarly simple way but without needing to worry about data layout. In Falx, users specify visual","authors_text":"Alvin Cheung, Amy J. Ko, Chenglong Wang, Isil Dillig, Rastislav Bodik, Yu Feng","cross_cats":["cs.PL"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.HC","submitted_at":"2021-02-01T18:01:20Z","title":"Falx: Synthesis-Powered Visualization Authoring"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.01024","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:b2b959ea07a50c5cf532adbaf36d1b1fc87744f499ab4722b2e32078fd7f6705","target":"record","created_at":"2026-07-05T02:11:17Z","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":"b277b6328a4be151c517547265173b4699dd970bfe0aba30b60abd92e6af9b3c","cross_cats_sorted":["cs.PL"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.HC","submitted_at":"2021-02-01T18:01:20Z","title_canon_sha256":"b814b9e83a710a7eb02e80046f245def3af8b1e93b8f51c40a945e6707f8ec3d"},"schema_version":"1.0","source":{"id":"2102.01024","kind":"arxiv","version":1}},"canonical_sha256":"5938e208ccf1045ce010448c407304c491fabf116133486d4561f2c1dff90c4d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5938e208ccf1045ce010448c407304c491fabf116133486d4561f2c1dff90c4d","first_computed_at":"2026-07-05T02:11:17.743050Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:11:17.743050Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PnFsc1CVBWVZIn7LcTlq3M4Qcs50KUfPhcT1x7xvXsx5yK8omPJ+LghNERjmkL+BRdNR7VtaOSCAFvqkGcwTCg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:11:17.743505Z","signed_message":"canonical_sha256_bytes"},"source_id":"2102.01024","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b2b959ea07a50c5cf532adbaf36d1b1fc87744f499ab4722b2e32078fd7f6705","sha256:213862c13114417bcd1e7c78b5016cb91768acdaa89761bd53818dae031b998d"],"state_sha256":"3a15d6ab36523c177afa6c1766c06ad82f3290647d4b074976f0407551815ad1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Mpn7VMiACmsL6DzZV88ZRXYotbdugaqs4xzV2oW3+b5/oxTFfY7RITsC/muLDWBYhKA9zhB8ql/OHsM+IgsxAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-25T17:59:27.100069Z","bundle_sha256":"b740b0b2aae2f72eee9580d3a5a1619b3840abfb3f177ca01afb23237b045705"}}