{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:ABCKRICWWMPVKTVEZU6NF75K6Z","short_pith_number":"pith:ABCKRICW","canonical_record":{"source":{"id":"2606.18692","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CY","submitted_at":"2026-06-17T05:14:09Z","cross_cats_sorted":["cs.HC"],"title_canon_sha256":"9b5806e894c0590d3d6aff458e602e7ae955aeca72b43fe7418a72394ac49cf3","abstract_canon_sha256":"772ec69fcd125ba6cf960be8867ba7109a7c2f45281169a6eccc21e998cbef46"},"schema_version":"1.0"},"canonical_sha256":"0044a8a056b31f554ea4cd3cd2ffaaf6510bc17ea8a20e2bf4efdba91d4c3f5d","source":{"kind":"arxiv","id":"2606.18692","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.18692","created_at":"2026-06-19T16:11:44Z"},{"alias_kind":"arxiv_version","alias_value":"2606.18692v1","created_at":"2026-06-19T16:11:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.18692","created_at":"2026-06-19T16:11:44Z"},{"alias_kind":"pith_short_12","alias_value":"ABCKRICWWMPV","created_at":"2026-06-19T16:11:44Z"},{"alias_kind":"pith_short_16","alias_value":"ABCKRICWWMPVKTVE","created_at":"2026-06-19T16:11:44Z"},{"alias_kind":"pith_short_8","alias_value":"ABCKRICW","created_at":"2026-06-19T16:11:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:ABCKRICWWMPVKTVEZU6NF75K6Z","target":"record","payload":{"canonical_record":{"source":{"id":"2606.18692","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CY","submitted_at":"2026-06-17T05:14:09Z","cross_cats_sorted":["cs.HC"],"title_canon_sha256":"9b5806e894c0590d3d6aff458e602e7ae955aeca72b43fe7418a72394ac49cf3","abstract_canon_sha256":"772ec69fcd125ba6cf960be8867ba7109a7c2f45281169a6eccc21e998cbef46"},"schema_version":"1.0"},"canonical_sha256":"0044a8a056b31f554ea4cd3cd2ffaaf6510bc17ea8a20e2bf4efdba91d4c3f5d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-19T16:11:44.692617Z","signature_b64":"fPfCPCZyZEtVXZLmNU2jtTi11EYThZZb/+R741CMTMdXV81ZnInfbkhfDPOsGAgPBNwOizE/Ng6chT5QpINMBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0044a8a056b31f554ea4cd3cd2ffaaf6510bc17ea8a20e2bf4efdba91d4c3f5d","last_reissued_at":"2026-06-19T16:11:44.692250Z","signature_status":"signed_v1","first_computed_at":"2026-06-19T16:11:44.692250Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.18692","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":"2026-06-19T16:11:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mfxPneugWM8MzFzvpD7ZbQ4eP+w98HrbqfzvDv9j04FKJUDoeaUUE1GLzUzddDj5kGwx5wCntXAT90+3fjwDCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T10:22:53.268147Z"},"content_sha256":"5bedcac8e71e2c64981f6b1beebea8e9675d4d441fca68b38baf10623f48f14e","schema_version":"1.0","event_id":"sha256:5bedcac8e71e2c64981f6b1beebea8e9675d4d441fca68b38baf10623f48f14e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:ABCKRICWWMPVKTVEZU6NF75K6Z","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Through the WordStream Glass: Revisiting Quantitative Encoding for Qualitative Learning Analytics","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.HC"],"primary_cat":"cs.CY","authors_text":"Caleb M. Trujillo, Huyen N. Nguyen, Kathleen Bowe, Kit Thompson, Minh-Huyen Nguyen","submitted_at":"2026-06-17T05:14:09Z","abstract_excerpt":"Data-driven learning analytics can surface trends across a student cohort over time, helping instructors improve the learning environment. WordStream, a visualization idiom for topic evolution, has been instantiated in two platforms toward this goal: the Journal Data Dashboard, for analyzing formative assessments, and WordStream Maker, for authoring custom visualizations. Where the prior work built these platforms for education (Vis4Ed), here we examine the reverse direction (Ed4Vis): what can qualitative education research tell us about building better visualization tools? We conducted a mixe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.18692","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/2606.18692/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":"2026-06-19T16:11:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iKKpRpgmOeQs1eTz6lVlf6g8fbYOYIR0Pt8g/HY3LOeptFbcQP5z6kKM8KvieaYYO3+O1+l+l4XYTlsxfXDaDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T10:22:53.268856Z"},"content_sha256":"fb16f66a32b8e6f18d1d0fe05159b962d560c5c316750cf2b27c59ad2c515b11","schema_version":"1.0","event_id":"sha256:fb16f66a32b8e6f18d1d0fe05159b962d560c5c316750cf2b27c59ad2c515b11"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ABCKRICWWMPVKTVEZU6NF75K6Z/bundle.json","state_url":"https://pith.science/pith/ABCKRICWWMPVKTVEZU6NF75K6Z/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ABCKRICWWMPVKTVEZU6NF75K6Z/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":"2026-07-05T10:22:53Z","links":{"resolver":"https://pith.science/pith/ABCKRICWWMPVKTVEZU6NF75K6Z","bundle":"https://pith.science/pith/ABCKRICWWMPVKTVEZU6NF75K6Z/bundle.json","state":"https://pith.science/pith/ABCKRICWWMPVKTVEZU6NF75K6Z/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ABCKRICWWMPVKTVEZU6NF75K6Z/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:ABCKRICWWMPVKTVEZU6NF75K6Z","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":"772ec69fcd125ba6cf960be8867ba7109a7c2f45281169a6eccc21e998cbef46","cross_cats_sorted":["cs.HC"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CY","submitted_at":"2026-06-17T05:14:09Z","title_canon_sha256":"9b5806e894c0590d3d6aff458e602e7ae955aeca72b43fe7418a72394ac49cf3"},"schema_version":"1.0","source":{"id":"2606.18692","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.18692","created_at":"2026-06-19T16:11:44Z"},{"alias_kind":"arxiv_version","alias_value":"2606.18692v1","created_at":"2026-06-19T16:11:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.18692","created_at":"2026-06-19T16:11:44Z"},{"alias_kind":"pith_short_12","alias_value":"ABCKRICWWMPV","created_at":"2026-06-19T16:11:44Z"},{"alias_kind":"pith_short_16","alias_value":"ABCKRICWWMPVKTVE","created_at":"2026-06-19T16:11:44Z"},{"alias_kind":"pith_short_8","alias_value":"ABCKRICW","created_at":"2026-06-19T16:11:44Z"}],"graph_snapshots":[{"event_id":"sha256:fb16f66a32b8e6f18d1d0fe05159b962d560c5c316750cf2b27c59ad2c515b11","target":"graph","created_at":"2026-06-19T16:11:44Z","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/2606.18692/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Data-driven learning analytics can surface trends across a student cohort over time, helping instructors improve the learning environment. WordStream, a visualization idiom for topic evolution, has been instantiated in two platforms toward this goal: the Journal Data Dashboard, for analyzing formative assessments, and WordStream Maker, for authoring custom visualizations. Where the prior work built these platforms for education (Vis4Ed), here we examine the reverse direction (Ed4Vis): what can qualitative education research tell us about building better visualization tools? We conducted a mixe","authors_text":"Caleb M. Trujillo, Huyen N. Nguyen, Kathleen Bowe, Kit Thompson, Minh-Huyen Nguyen","cross_cats":["cs.HC"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CY","submitted_at":"2026-06-17T05:14:09Z","title":"Through the WordStream Glass: Revisiting Quantitative Encoding for Qualitative Learning Analytics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.18692","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":"sha256:5bedcac8e71e2c64981f6b1beebea8e9675d4d441fca68b38baf10623f48f14e","target":"record","created_at":"2026-06-19T16:11:44Z","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":"772ec69fcd125ba6cf960be8867ba7109a7c2f45281169a6eccc21e998cbef46","cross_cats_sorted":["cs.HC"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CY","submitted_at":"2026-06-17T05:14:09Z","title_canon_sha256":"9b5806e894c0590d3d6aff458e602e7ae955aeca72b43fe7418a72394ac49cf3"},"schema_version":"1.0","source":{"id":"2606.18692","kind":"arxiv","version":1}},"canonical_sha256":"0044a8a056b31f554ea4cd3cd2ffaaf6510bc17ea8a20e2bf4efdba91d4c3f5d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0044a8a056b31f554ea4cd3cd2ffaaf6510bc17ea8a20e2bf4efdba91d4c3f5d","first_computed_at":"2026-06-19T16:11:44.692250Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-19T16:11:44.692250Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fPfCPCZyZEtVXZLmNU2jtTi11EYThZZb/+R741CMTMdXV81ZnInfbkhfDPOsGAgPBNwOizE/Ng6chT5QpINMBQ==","signature_status":"signed_v1","signed_at":"2026-06-19T16:11:44.692617Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.18692","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5bedcac8e71e2c64981f6b1beebea8e9675d4d441fca68b38baf10623f48f14e","sha256:fb16f66a32b8e6f18d1d0fe05159b962d560c5c316750cf2b27c59ad2c515b11"],"state_sha256":"9a4e70af7524aff03b387f5bc59f58afc0b63c06cec9203a4d1f60ccad06f82c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e3eR9WMUo2HlyqkpZNpUzwPUvVdMuVc5ETv3QLZGDQ8VLODNBxUqZwbVBUUdjYx5kixSl8nRbXYh5FVr4t+AAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T10:22:53.272499Z","bundle_sha256":"88465027531c446aeaaeb6f67196851e48afc9a00699450d43994b1e51e82d4a"}}