{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:EJL3REEPC6JQZPK7MNAP2FJJBS","short_pith_number":"pith:EJL3REEP","canonical_record":{"source":{"id":"2002.05036","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2020-02-12T14:56:18Z","cross_cats_sorted":[],"title_canon_sha256":"0fcf14a91662eafb03d83da539eb060c0adc94edb84bfc8fe7b8521b222f0a71","abstract_canon_sha256":"22b52a370d51cc2253fd8fa690ca14ec07bdab7085d8bf649fe795c8a7def2ca"},"schema_version":"1.0"},"canonical_sha256":"2257b8908f17930cbd5f6340fd15290ca14465b203e438d83f65a93b22a84dde","source":{"kind":"arxiv","id":"2002.05036","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.05036","created_at":"2026-07-05T00:40:20Z"},{"alias_kind":"arxiv_version","alias_value":"2002.05036v1","created_at":"2026-07-05T00:40:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.05036","created_at":"2026-07-05T00:40:20Z"},{"alias_kind":"pith_short_12","alias_value":"EJL3REEPC6JQ","created_at":"2026-07-05T00:40:20Z"},{"alias_kind":"pith_short_16","alias_value":"EJL3REEPC6JQZPK7","created_at":"2026-07-05T00:40:20Z"},{"alias_kind":"pith_short_8","alias_value":"EJL3REEP","created_at":"2026-07-05T00:40:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:EJL3REEPC6JQZPK7MNAP2FJJBS","target":"record","payload":{"canonical_record":{"source":{"id":"2002.05036","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2020-02-12T14:56:18Z","cross_cats_sorted":[],"title_canon_sha256":"0fcf14a91662eafb03d83da539eb060c0adc94edb84bfc8fe7b8521b222f0a71","abstract_canon_sha256":"22b52a370d51cc2253fd8fa690ca14ec07bdab7085d8bf649fe795c8a7def2ca"},"schema_version":"1.0"},"canonical_sha256":"2257b8908f17930cbd5f6340fd15290ca14465b203e438d83f65a93b22a84dde","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:40:20.773991Z","signature_b64":"v6mGozm1SwqPvY2RQdpsmxXPYPa5R1KLOjjRfMclO0Y6xrNVksmZ5npZssJ6SnGqAoSrnpaTYPXOJelsbvWKAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2257b8908f17930cbd5f6340fd15290ca14465b203e438d83f65a93b22a84dde","last_reissued_at":"2026-07-05T00:40:20.773601Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:40:20.773601Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2002.05036","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":"2026-07-05T00:40:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"il3vvJe2uoYX9xawDHiIWLKMHlMud2kbZZ/eefsEtbhUoDUzjePuXR+CDH2ZJ2/Nt5BZiQEHmCxWVm1FUCvGCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-18T14:49:16.140132Z"},"content_sha256":"510ef4a8f533c08b6a5785b33d9df1499dfb6d236ef7b6ff8cd83d489db47fc7","schema_version":"1.0","event_id":"sha256:510ef4a8f533c08b6a5785b33d9df1499dfb6d236ef7b6ff8cd83d489db47fc7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:EJL3REEPC6JQZPK7MNAP2FJJBS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dandelion Diagram: Aggregating Positioning and Orientation Data in the Visualization of Classroom Proxemics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.HC","authors_text":"Berry Eggen, Chris L.E. Paffen, Pengcheng An, Ruurd Taconis, Sara Ordanovski, Saskia Bakker","submitted_at":"2020-02-12T14:56:18Z","abstract_excerpt":"In the past two years, an emerging body of HCI work has been focused on classroom proxemics - how teachers divide time and attention over students in the different regions of the classroom. Tracking and visualizing this implicit yet relevant dimension of teaching can benefit both research and teacher professionalization. Prior work has proved the value of depicting teachers' whereabouts. Yet a major opportunity remains in the design of new, synthesized visualizations that help researchers and practitioners to gain more insights in the vast tracking data. We present Dandelion Diagram, a synthes"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.05036","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/2002.05036/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":"2026-07-05T00:40:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QXQMN1oO3HGdXsejG+5RtbCrUcI7eVQ8bzVMkg93pYBpdNibuQcXrVfVc7vBa+Jfy/pG0apovZIviyr1guRDAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-18T14:49:16.140508Z"},"content_sha256":"c7f8a00bec94f0171fa1bde613dbd5923673f46cd10019ed99971020c0534b24","schema_version":"1.0","event_id":"sha256:c7f8a00bec94f0171fa1bde613dbd5923673f46cd10019ed99971020c0534b24"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EJL3REEPC6JQZPK7MNAP2FJJBS/bundle.json","state_url":"https://pith.science/pith/EJL3REEPC6JQZPK7MNAP2FJJBS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EJL3REEPC6JQZPK7MNAP2FJJBS/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":"2026-07-18T14:49:16Z","links":{"resolver":"https://pith.science/pith/EJL3REEPC6JQZPK7MNAP2FJJBS","bundle":"https://pith.science/pith/EJL3REEPC6JQZPK7MNAP2FJJBS/bundle.json","state":"https://pith.science/pith/EJL3REEPC6JQZPK7MNAP2FJJBS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EJL3REEPC6JQZPK7MNAP2FJJBS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:EJL3REEPC6JQZPK7MNAP2FJJBS","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":"22b52a370d51cc2253fd8fa690ca14ec07bdab7085d8bf649fe795c8a7def2ca","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2020-02-12T14:56:18Z","title_canon_sha256":"0fcf14a91662eafb03d83da539eb060c0adc94edb84bfc8fe7b8521b222f0a71"},"schema_version":"1.0","source":{"id":"2002.05036","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.05036","created_at":"2026-07-05T00:40:20Z"},{"alias_kind":"arxiv_version","alias_value":"2002.05036v1","created_at":"2026-07-05T00:40:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.05036","created_at":"2026-07-05T00:40:20Z"},{"alias_kind":"pith_short_12","alias_value":"EJL3REEPC6JQ","created_at":"2026-07-05T00:40:20Z"},{"alias_kind":"pith_short_16","alias_value":"EJL3REEPC6JQZPK7","created_at":"2026-07-05T00:40:20Z"},{"alias_kind":"pith_short_8","alias_value":"EJL3REEP","created_at":"2026-07-05T00:40:20Z"}],"graph_snapshots":[{"event_id":"sha256:c7f8a00bec94f0171fa1bde613dbd5923673f46cd10019ed99971020c0534b24","target":"graph","created_at":"2026-07-05T00:40:20Z","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/2002.05036/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In the past two years, an emerging body of HCI work has been focused on classroom proxemics - how teachers divide time and attention over students in the different regions of the classroom. Tracking and visualizing this implicit yet relevant dimension of teaching can benefit both research and teacher professionalization. Prior work has proved the value of depicting teachers' whereabouts. Yet a major opportunity remains in the design of new, synthesized visualizations that help researchers and practitioners to gain more insights in the vast tracking data. We present Dandelion Diagram, a synthes","authors_text":"Berry Eggen, Chris L.E. Paffen, Pengcheng An, Ruurd Taconis, Sara Ordanovski, Saskia Bakker","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2020-02-12T14:56:18Z","title":"Dandelion Diagram: Aggregating Positioning and Orientation Data in the Visualization of Classroom Proxemics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.05036","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":"sha256:510ef4a8f533c08b6a5785b33d9df1499dfb6d236ef7b6ff8cd83d489db47fc7","target":"record","created_at":"2026-07-05T00:40:20Z","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":"22b52a370d51cc2253fd8fa690ca14ec07bdab7085d8bf649fe795c8a7def2ca","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2020-02-12T14:56:18Z","title_canon_sha256":"0fcf14a91662eafb03d83da539eb060c0adc94edb84bfc8fe7b8521b222f0a71"},"schema_version":"1.0","source":{"id":"2002.05036","kind":"arxiv","version":1}},"canonical_sha256":"2257b8908f17930cbd5f6340fd15290ca14465b203e438d83f65a93b22a84dde","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2257b8908f17930cbd5f6340fd15290ca14465b203e438d83f65a93b22a84dde","first_computed_at":"2026-07-05T00:40:20.773601Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:40:20.773601Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"v6mGozm1SwqPvY2RQdpsmxXPYPa5R1KLOjjRfMclO0Y6xrNVksmZ5npZssJ6SnGqAoSrnpaTYPXOJelsbvWKAw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:40:20.773991Z","signed_message":"canonical_sha256_bytes"},"source_id":"2002.05036","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:510ef4a8f533c08b6a5785b33d9df1499dfb6d236ef7b6ff8cd83d489db47fc7","sha256:c7f8a00bec94f0171fa1bde613dbd5923673f46cd10019ed99971020c0534b24"],"state_sha256":"522f46bdd289cacf59af049c85c70e14c8efdc422524d5940b91059d89d128c2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jiZ3n4MsKa0vs5MDCFRVClamKCpCASZv/JhCCiEftG0pGg54t5rbKfS2Vz+C27OMV0el3YNZ/1d0tUp8cpATDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-18T14:49:16.142894Z","bundle_sha256":"d8dd4b6c4de9c6c3732ae98d5d2dd679a0fe1d2c8831a865da9fbcaf5c2482d0"}}