{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:3EWYYYL2CTONKQ2JGF7FCNWL4D","short_pith_number":"pith:3EWYYYL2","schema_version":"1.0","canonical_sha256":"d92d8c617a14dcd54349317e5136cbe0d4b871cebe44938ec65e9e61ccc7fcf1","source":{"kind":"arxiv","id":"1504.02218","version":2},"attestation_state":"computed","paper":{"title":"Evaluating Cartogram Effectiveness","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.HC","authors_text":"Md. Jawaherul Alam, Sabrina Nusrat, Stephen G. Kobourov","submitted_at":"2015-04-09T07:58:01Z","abstract_excerpt":"Cartograms are maps in which areas of geographic regions (countries, states) appear in proportion to some variable of interest (population, income). Cartograms are popular visualizations for geo-referenced data that have been used for over a century and that make it possible to gain insight into patterns and trends in the world around us. Despite the popularity of cartograms and the large number of cartogram types, there are few studies evaluating the effectiveness of cartograms in conveying information. Based on a recent task taxonomy for cartograms, we evaluate four major different types of "},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1504.02218","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2015-04-09T07:58:01Z","cross_cats_sorted":[],"title_canon_sha256":"bbf449b4868a2a25652f5149020a496780b67b9217b60b61cde6292b03d02269","abstract_canon_sha256":"f92af7d2ba6bcdc019f879e2a7c2f9e111a05eee36fd5471b2708805ce25d594"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:53:35.095835Z","signature_b64":"8al+njr/P0pvMA/gmxulWt4/I/GFEZNjdpAj6+DPMlOjQ5UOXY/H8flMi1GP1Xy/8yN4gBOWvxEHLt8OLp2uDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d92d8c617a14dcd54349317e5136cbe0d4b871cebe44938ec65e9e61ccc7fcf1","last_reissued_at":"2026-05-18T00:53:35.095456Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:53:35.095456Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Evaluating Cartogram Effectiveness","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.HC","authors_text":"Md. Jawaherul Alam, Sabrina Nusrat, Stephen G. Kobourov","submitted_at":"2015-04-09T07:58:01Z","abstract_excerpt":"Cartograms are maps in which areas of geographic regions (countries, states) appear in proportion to some variable of interest (population, income). Cartograms are popular visualizations for geo-referenced data that have been used for over a century and that make it possible to gain insight into patterns and trends in the world around us. Despite the popularity of cartograms and the large number of cartogram types, there are few studies evaluating the effectiveness of cartograms in conveying information. Based on a recent task taxonomy for cartograms, we evaluate four major different types of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.02218","kind":"arxiv","version":2},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1504.02218","created_at":"2026-05-18T00:53:35.095518+00:00"},{"alias_kind":"arxiv_version","alias_value":"1504.02218v2","created_at":"2026-05-18T00:53:35.095518+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.02218","created_at":"2026-05-18T00:53:35.095518+00:00"},{"alias_kind":"pith_short_12","alias_value":"3EWYYYL2CTON","created_at":"2026-05-18T12:29:02.477457+00:00"},{"alias_kind":"pith_short_16","alias_value":"3EWYYYL2CTONKQ2J","created_at":"2026-05-18T12:29:02.477457+00:00"},{"alias_kind":"pith_short_8","alias_value":"3EWYYYL2","created_at":"2026-05-18T12:29:02.477457+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/3EWYYYL2CTONKQ2JGF7FCNWL4D","json":"https://pith.science/pith/3EWYYYL2CTONKQ2JGF7FCNWL4D.json","graph_json":"https://pith.science/api/pith-number/3EWYYYL2CTONKQ2JGF7FCNWL4D/graph.json","events_json":"https://pith.science/api/pith-number/3EWYYYL2CTONKQ2JGF7FCNWL4D/events.json","paper":"https://pith.science/paper/3EWYYYL2"},"agent_actions":{"view_html":"https://pith.science/pith/3EWYYYL2CTONKQ2JGF7FCNWL4D","download_json":"https://pith.science/pith/3EWYYYL2CTONKQ2JGF7FCNWL4D.json","view_paper":"https://pith.science/paper/3EWYYYL2","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1504.02218&json=true","fetch_graph":"https://pith.science/api/pith-number/3EWYYYL2CTONKQ2JGF7FCNWL4D/graph.json","fetch_events":"https://pith.science/api/pith-number/3EWYYYL2CTONKQ2JGF7FCNWL4D/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3EWYYYL2CTONKQ2JGF7FCNWL4D/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3EWYYYL2CTONKQ2JGF7FCNWL4D/action/storage_attestation","attest_author":"https://pith.science/pith/3EWYYYL2CTONKQ2JGF7FCNWL4D/action/author_attestation","sign_citation":"https://pith.science/pith/3EWYYYL2CTONKQ2JGF7FCNWL4D/action/citation_signature","submit_replication":"https://pith.science/pith/3EWYYYL2CTONKQ2JGF7FCNWL4D/action/replication_record"}},"created_at":"2026-05-18T00:53:35.095518+00:00","updated_at":"2026-05-18T00:53:35.095518+00:00"}