{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:BYW37UPPQHBEUOMXRWG4YVKIOJ","short_pith_number":"pith:BYW37UPP","canonical_record":{"source":{"id":"1811.02021","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.OT","submitted_at":"2018-11-05T20:30:49Z","cross_cats_sorted":["stat.AP"],"title_canon_sha256":"d2e3a5925b15aef248a62c05d62e1b00015b50439fd8feee70324e012386aa83","abstract_canon_sha256":"422fbc77d8505b97f2c838b4af4fe2793ae4c8d1690950ad6d64484d224e80f6"},"schema_version":"1.0"},"canonical_sha256":"0e2dbfd1ef81c24a39978d8dcc5548725546749c6ff944f8354e3424744d9573","source":{"kind":"arxiv","id":"1811.02021","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.02021","created_at":"2026-05-18T00:01:21Z"},{"alias_kind":"arxiv_version","alias_value":"1811.02021v1","created_at":"2026-05-18T00:01:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.02021","created_at":"2026-05-18T00:01:21Z"},{"alias_kind":"pith_short_12","alias_value":"BYW37UPPQHBE","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"BYW37UPPQHBEUOMX","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"BYW37UPP","created_at":"2026-05-18T12:32:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:BYW37UPPQHBEUOMXRWG4YVKIOJ","target":"record","payload":{"canonical_record":{"source":{"id":"1811.02021","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.OT","submitted_at":"2018-11-05T20:30:49Z","cross_cats_sorted":["stat.AP"],"title_canon_sha256":"d2e3a5925b15aef248a62c05d62e1b00015b50439fd8feee70324e012386aa83","abstract_canon_sha256":"422fbc77d8505b97f2c838b4af4fe2793ae4c8d1690950ad6d64484d224e80f6"},"schema_version":"1.0"},"canonical_sha256":"0e2dbfd1ef81c24a39978d8dcc5548725546749c6ff944f8354e3424744d9573","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:01:21.386113Z","signature_b64":"29jyCh+QPOeOsSViQ/fQC9xPpBkANOekmSXN0R7rJZ9O27miBnBHE8ndJpV9pv2N6v4dDl1LXU2pHlvuz6QsDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0e2dbfd1ef81c24a39978d8dcc5548725546749c6ff944f8354e3424744d9573","last_reissued_at":"2026-05-18T00:01:21.385612Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:01:21.385612Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1811.02021","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":"2026-05-18T00:01:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n9TVeEh+FSuHqQQcz+sTG6UF/M/PPIrW3fIknSBO1OA66GTUPPBuovnJRrvZcfuLasl81ruaT8MJjdPiU7djCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T23:22:47.579510Z"},"content_sha256":"1736d47084eda003f0afbf9ef1bec2bb85187c2e24be276eb1784a4ae39d8a2b","schema_version":"1.0","event_id":"sha256:1736d47084eda003f0afbf9ef1bec2bb85187c2e24be276eb1784a4ae39d8a2b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:BYW37UPPQHBEUOMXRWG4YVKIOJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Using GitHub Classroom To Teach Statistics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["stat.AP"],"primary_cat":"stat.OT","authors_text":"Jacob Fiksel, Johanna S. Hardin, Leah R. Jager, Margaret A. Taub","submitted_at":"2018-11-05T20:30:49Z","abstract_excerpt":"Git and GitHub are common tools for keeping track of multiple versions of data analytic content, which allow for more than one person to simultaneously work on a project. GitHub Classroom aims to provide a way for students to work on and submit their assignments via Git and GitHub, giving teachers an opportunity to teach these version control tools as part of their course. In the Fall 2017 semester, we implemented GitHub Classroom in two educational settings--an introductory computational statistics lab and a more advanced computational statistics course. We found many educational benefits of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.02021","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":""},"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":"2026-05-18T00:01:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ITsVnVxIIysdUQl+A1XcLVN+CAvZncAJ7IOUCEhj4pxqmcM3ehhu1wz7Voql19v7AKWOFgT8WzV8T8mWXdjDAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T23:22:47.579860Z"},"content_sha256":"87102ec6270cc0000c2c08bd92fffb1cbeb0d117d7e983d7f939426441f06a97","schema_version":"1.0","event_id":"sha256:87102ec6270cc0000c2c08bd92fffb1cbeb0d117d7e983d7f939426441f06a97"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BYW37UPPQHBEUOMXRWG4YVKIOJ/bundle.json","state_url":"https://pith.science/pith/BYW37UPPQHBEUOMXRWG4YVKIOJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BYW37UPPQHBEUOMXRWG4YVKIOJ/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":"2026-06-25T23:22:47Z","links":{"resolver":"https://pith.science/pith/BYW37UPPQHBEUOMXRWG4YVKIOJ","bundle":"https://pith.science/pith/BYW37UPPQHBEUOMXRWG4YVKIOJ/bundle.json","state":"https://pith.science/pith/BYW37UPPQHBEUOMXRWG4YVKIOJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BYW37UPPQHBEUOMXRWG4YVKIOJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:BYW37UPPQHBEUOMXRWG4YVKIOJ","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":"422fbc77d8505b97f2c838b4af4fe2793ae4c8d1690950ad6d64484d224e80f6","cross_cats_sorted":["stat.AP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.OT","submitted_at":"2018-11-05T20:30:49Z","title_canon_sha256":"d2e3a5925b15aef248a62c05d62e1b00015b50439fd8feee70324e012386aa83"},"schema_version":"1.0","source":{"id":"1811.02021","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.02021","created_at":"2026-05-18T00:01:21Z"},{"alias_kind":"arxiv_version","alias_value":"1811.02021v1","created_at":"2026-05-18T00:01:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.02021","created_at":"2026-05-18T00:01:21Z"},{"alias_kind":"pith_short_12","alias_value":"BYW37UPPQHBE","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"BYW37UPPQHBEUOMX","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"BYW37UPP","created_at":"2026-05-18T12:32:16Z"}],"graph_snapshots":[{"event_id":"sha256:87102ec6270cc0000c2c08bd92fffb1cbeb0d117d7e983d7f939426441f06a97","target":"graph","created_at":"2026-05-18T00:01:21Z","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"},"paper":{"abstract_excerpt":"Git and GitHub are common tools for keeping track of multiple versions of data analytic content, which allow for more than one person to simultaneously work on a project. GitHub Classroom aims to provide a way for students to work on and submit their assignments via Git and GitHub, giving teachers an opportunity to teach these version control tools as part of their course. In the Fall 2017 semester, we implemented GitHub Classroom in two educational settings--an introductory computational statistics lab and a more advanced computational statistics course. We found many educational benefits of ","authors_text":"Jacob Fiksel, Johanna S. Hardin, Leah R. Jager, Margaret A. Taub","cross_cats":["stat.AP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.OT","submitted_at":"2018-11-05T20:30:49Z","title":"Using GitHub Classroom To Teach Statistics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.02021","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":"sha256:1736d47084eda003f0afbf9ef1bec2bb85187c2e24be276eb1784a4ae39d8a2b","target":"record","created_at":"2026-05-18T00:01:21Z","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":"422fbc77d8505b97f2c838b4af4fe2793ae4c8d1690950ad6d64484d224e80f6","cross_cats_sorted":["stat.AP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.OT","submitted_at":"2018-11-05T20:30:49Z","title_canon_sha256":"d2e3a5925b15aef248a62c05d62e1b00015b50439fd8feee70324e012386aa83"},"schema_version":"1.0","source":{"id":"1811.02021","kind":"arxiv","version":1}},"canonical_sha256":"0e2dbfd1ef81c24a39978d8dcc5548725546749c6ff944f8354e3424744d9573","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0e2dbfd1ef81c24a39978d8dcc5548725546749c6ff944f8354e3424744d9573","first_computed_at":"2026-05-18T00:01:21.385612Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:01:21.385612Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"29jyCh+QPOeOsSViQ/fQC9xPpBkANOekmSXN0R7rJZ9O27miBnBHE8ndJpV9pv2N6v4dDl1LXU2pHlvuz6QsDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:01:21.386113Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.02021","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1736d47084eda003f0afbf9ef1bec2bb85187c2e24be276eb1784a4ae39d8a2b","sha256:87102ec6270cc0000c2c08bd92fffb1cbeb0d117d7e983d7f939426441f06a97"],"state_sha256":"9fd3cf8be16b4b9e637ddc96c14fec7977393effb26ff7928b7005a92a2a872f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BhtkJ/gTgMFcLB3GEY1IP+FBo+wBEWW0ji0YFhIb2yQ0ro0l8AiUy0nVonf8LZUtQhLkIdP4+D/aTOnyucTVBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-25T23:22:47.581781Z","bundle_sha256":"0c1e944d44d1a0c919bc3d9b74344ca9304c0efc2c0539e365e9321d1c312ba6"}}