{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:U37VLAHNEPBIV77TCLDIG76FUJ","short_pith_number":"pith:U37VLAHN","canonical_record":{"source":{"id":"2108.03529","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"cs.DS","submitted_at":"2021-08-07T21:42:45Z","cross_cats_sorted":[],"title_canon_sha256":"f4d90cac283eae9563de7f4685fd116d1db899f354c4e70fbbfba821626b7b12","abstract_canon_sha256":"43c03203d3bf4ea5dd324071364e7cdbe634c9effb4e85415bfe4a013330c375"},"schema_version":"1.0"},"canonical_sha256":"a6ff5580ed23c28afff312c6837fc5a275ad4afe609900f323058b97681992c7","source":{"kind":"arxiv","id":"2108.03529","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.03529","created_at":"2026-07-05T03:03:53Z"},{"alias_kind":"arxiv_version","alias_value":"2108.03529v1","created_at":"2026-07-05T03:03:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.03529","created_at":"2026-07-05T03:03:53Z"},{"alias_kind":"pith_short_12","alias_value":"U37VLAHNEPBI","created_at":"2026-07-05T03:03:53Z"},{"alias_kind":"pith_short_16","alias_value":"U37VLAHNEPBIV77T","created_at":"2026-07-05T03:03:53Z"},{"alias_kind":"pith_short_8","alias_value":"U37VLAHN","created_at":"2026-07-05T03:03:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:U37VLAHNEPBIV77TCLDIG76FUJ","target":"record","payload":{"canonical_record":{"source":{"id":"2108.03529","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"cs.DS","submitted_at":"2021-08-07T21:42:45Z","cross_cats_sorted":[],"title_canon_sha256":"f4d90cac283eae9563de7f4685fd116d1db899f354c4e70fbbfba821626b7b12","abstract_canon_sha256":"43c03203d3bf4ea5dd324071364e7cdbe634c9effb4e85415bfe4a013330c375"},"schema_version":"1.0"},"canonical_sha256":"a6ff5580ed23c28afff312c6837fc5a275ad4afe609900f323058b97681992c7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:03:53.506583Z","signature_b64":"spYFxK7aNijN+edg0pY4nHj/R+Bnz5d04RUPAyWHjnsIxjhYvzU7Z8nwCFeBpr3FJo2gt7oRO0BFDhXrWA8CCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a6ff5580ed23c28afff312c6837fc5a275ad4afe609900f323058b97681992c7","last_reissued_at":"2026-07-05T03:03:53.506181Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:03:53.506181Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2108.03529","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":"2026-07-05T03:03:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9aK3kmKhUn7kLmcyShaczPoo+m+Lljx8q3HUWl7WEOUe/FxukA4nzjFplpAHwTN8W5FgIMWEtNvrA7N5/EKTCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T23:47:31.537369Z"},"content_sha256":"aca712df718e2d83c0d0da660028a509d984c384cdbac868d6134b3df882baea","schema_version":"1.0","event_id":"sha256:aca712df718e2d83c0d0da660028a509d984c384cdbac868d6134b3df882baea"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:U37VLAHNEPBIV77TCLDIG76FUJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"SpEuler: Semantics-preserving Euler Diagrams","license":"http://creativecommons.org/publicdomain/zero/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DS","authors_text":"Jochen G\\\"ortler, Oliver Deussen, Rebecca Kehlbeck, Yunhai Wang","submitted_at":"2021-08-07T21:42:45Z","abstract_excerpt":"Creating comprehensible visualizations of highly overlapping set-typed data is a challenging task due to its complexity. To facilitate insights into set connectivity and to leverage semantic relations between intersections, we propose a fast two-step layout technique for Euler diagrams that are both well-matched and well-formed. Our method conforms to established form guidelines for Euler diagrams regarding semantics, aesthetics, and readability. First, we establish an initial ordering of the data, which we then use to incrementally create a planar, connected, and monotone dual graph represent"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.03529","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/2108.03529/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":"2026-07-05T03:03:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fNHAXy+WzONRMOjowmH1LOLlEx2TxSNwdTa5I7xswAvAMihbvqVZPaRa5nZU0LsrrqUG9vKpHw9fK1Zw356rDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T23:47:31.537689Z"},"content_sha256":"7df5d36ff962557aa94c21693d10952bf9e9e91b57dce606294a8a0a8e0f7bd8","schema_version":"1.0","event_id":"sha256:7df5d36ff962557aa94c21693d10952bf9e9e91b57dce606294a8a0a8e0f7bd8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/U37VLAHNEPBIV77TCLDIG76FUJ/bundle.json","state_url":"https://pith.science/pith/U37VLAHNEPBIV77TCLDIG76FUJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/U37VLAHNEPBIV77TCLDIG76FUJ/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":"2026-08-21T23:47:31Z","links":{"resolver":"https://pith.science/pith/U37VLAHNEPBIV77TCLDIG76FUJ","bundle":"https://pith.science/pith/U37VLAHNEPBIV77TCLDIG76FUJ/bundle.json","state":"https://pith.science/pith/U37VLAHNEPBIV77TCLDIG76FUJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/U37VLAHNEPBIV77TCLDIG76FUJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:U37VLAHNEPBIV77TCLDIG76FUJ","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":"43c03203d3bf4ea5dd324071364e7cdbe634c9effb4e85415bfe4a013330c375","cross_cats_sorted":[],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"cs.DS","submitted_at":"2021-08-07T21:42:45Z","title_canon_sha256":"f4d90cac283eae9563de7f4685fd116d1db899f354c4e70fbbfba821626b7b12"},"schema_version":"1.0","source":{"id":"2108.03529","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.03529","created_at":"2026-07-05T03:03:53Z"},{"alias_kind":"arxiv_version","alias_value":"2108.03529v1","created_at":"2026-07-05T03:03:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.03529","created_at":"2026-07-05T03:03:53Z"},{"alias_kind":"pith_short_12","alias_value":"U37VLAHNEPBI","created_at":"2026-07-05T03:03:53Z"},{"alias_kind":"pith_short_16","alias_value":"U37VLAHNEPBIV77T","created_at":"2026-07-05T03:03:53Z"},{"alias_kind":"pith_short_8","alias_value":"U37VLAHN","created_at":"2026-07-05T03:03:53Z"}],"graph_snapshots":[{"event_id":"sha256:7df5d36ff962557aa94c21693d10952bf9e9e91b57dce606294a8a0a8e0f7bd8","target":"graph","created_at":"2026-07-05T03:03:53Z","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/2108.03529/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Creating comprehensible visualizations of highly overlapping set-typed data is a challenging task due to its complexity. To facilitate insights into set connectivity and to leverage semantic relations between intersections, we propose a fast two-step layout technique for Euler diagrams that are both well-matched and well-formed. Our method conforms to established form guidelines for Euler diagrams regarding semantics, aesthetics, and readability. First, we establish an initial ordering of the data, which we then use to incrementally create a planar, connected, and monotone dual graph represent","authors_text":"Jochen G\\\"ortler, Oliver Deussen, Rebecca Kehlbeck, Yunhai Wang","cross_cats":[],"headline":"","license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"cs.DS","submitted_at":"2021-08-07T21:42:45Z","title":"SpEuler: Semantics-preserving Euler Diagrams"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.03529","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:aca712df718e2d83c0d0da660028a509d984c384cdbac868d6134b3df882baea","target":"record","created_at":"2026-07-05T03:03:53Z","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":"43c03203d3bf4ea5dd324071364e7cdbe634c9effb4e85415bfe4a013330c375","cross_cats_sorted":[],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"cs.DS","submitted_at":"2021-08-07T21:42:45Z","title_canon_sha256":"f4d90cac283eae9563de7f4685fd116d1db899f354c4e70fbbfba821626b7b12"},"schema_version":"1.0","source":{"id":"2108.03529","kind":"arxiv","version":1}},"canonical_sha256":"a6ff5580ed23c28afff312c6837fc5a275ad4afe609900f323058b97681992c7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a6ff5580ed23c28afff312c6837fc5a275ad4afe609900f323058b97681992c7","first_computed_at":"2026-07-05T03:03:53.506181Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:03:53.506181Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"spYFxK7aNijN+edg0pY4nHj/R+Bnz5d04RUPAyWHjnsIxjhYvzU7Z8nwCFeBpr3FJo2gt7oRO0BFDhXrWA8CCA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:03:53.506583Z","signed_message":"canonical_sha256_bytes"},"source_id":"2108.03529","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aca712df718e2d83c0d0da660028a509d984c384cdbac868d6134b3df882baea","sha256:7df5d36ff962557aa94c21693d10952bf9e9e91b57dce606294a8a0a8e0f7bd8"],"state_sha256":"ac0243175f3008e9f206d1e07eea6eec79f2e6eda7fac45e2328dc6a83c45f8a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u1qC9X9/Z9+zWd9sfIlQB5biakPeuFrnaxDriCcFDw5KNHFsZoZhR00K/+M1Q8mwy+Ws59wpLZJaD0Foicy7DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T23:47:31.541056Z","bundle_sha256":"fe1ff0b6a51fa4a684d1ca2134776f46196af3cbd0984dd0db05a212effef9fc"}}