{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:L7YJ6BNZBVBTRTIMZDR7W3YIGZ","short_pith_number":"pith:L7YJ6BNZ","canonical_record":{"source":{"id":"1809.00650","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2018-09-03T16:42:49Z","cross_cats_sorted":[],"title_canon_sha256":"0441b81a2d2fb39f8bc8555b4dac05522ce9cb10016b068f57424ea25002baa7","abstract_canon_sha256":"23f94f5525c25bb9128822422e669b5900677bb328a4aaa43d0cfb767f0b9d13"},"schema_version":"1.0"},"canonical_sha256":"5ff09f05b90d4338cd0cc8e3fb6f0836509e127a5ab0e548cf420356f111bf3a","source":{"kind":"arxiv","id":"1809.00650","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.00650","created_at":"2026-05-18T00:06:32Z"},{"alias_kind":"arxiv_version","alias_value":"1809.00650v1","created_at":"2026-05-18T00:06:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.00650","created_at":"2026-05-18T00:06:32Z"},{"alias_kind":"pith_short_12","alias_value":"L7YJ6BNZBVBT","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_16","alias_value":"L7YJ6BNZBVBTRTIM","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_8","alias_value":"L7YJ6BNZ","created_at":"2026-05-18T12:32:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:L7YJ6BNZBVBTRTIMZDR7W3YIGZ","target":"record","payload":{"canonical_record":{"source":{"id":"1809.00650","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2018-09-03T16:42:49Z","cross_cats_sorted":[],"title_canon_sha256":"0441b81a2d2fb39f8bc8555b4dac05522ce9cb10016b068f57424ea25002baa7","abstract_canon_sha256":"23f94f5525c25bb9128822422e669b5900677bb328a4aaa43d0cfb767f0b9d13"},"schema_version":"1.0"},"canonical_sha256":"5ff09f05b90d4338cd0cc8e3fb6f0836509e127a5ab0e548cf420356f111bf3a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:06:32.882056Z","signature_b64":"ZPFuNkqX/7kCg97KQdI2u4F/l1QBopZsOd8srKQysyu/Jwcpamg93xnT7yLYHiVs5vBea8OPb/5bJpFSTHXaDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5ff09f05b90d4338cd0cc8e3fb6f0836509e127a5ab0e548cf420356f111bf3a","last_reissued_at":"2026-05-18T00:06:32.881338Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:06:32.881338Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1809.00650","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":"2026-05-18T00:06:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"o4tNWhjGKxYgcoKTNYQOdzgWmv45pAvzdVVxszQdHdBXB9Y4Z7OU9zSY/vvjjDkve2kjOSrKhJ+Nv7RjK53XDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T18:01:08.912672Z"},"content_sha256":"16ebdef488c275d9aba1bf620485503a559ecb08eb16502d8456259cd138f336","schema_version":"1.0","event_id":"sha256:16ebdef488c275d9aba1bf620485503a559ecb08eb16502d8456259cd138f336"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:L7YJ6BNZBVBTRTIMZDR7W3YIGZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"How Surveys, Tutors, and Software Help to Assess Scrum Adoption in a Classroom Software Engineering Project","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.SE","authors_text":"Christoph Matthies, Hasso Plattner, Keven Richly, Matthias Uflacker, Thomas Kowark","submitted_at":"2018-09-03T16:42:49Z","abstract_excerpt":"Agile methods are best taught in a hands-on fashion in realistic projects. The main challenge in doing so is to assess whether students apply the methods correctly without requiring complete supervision throughout the entire project. This paper presents experiences from a classroom project where 38 students developed a single system using a scaled version of Scrum. Surveys helped us to identify which elements of Scrum correlated most with student satisfaction or posed the biggest challenges. These insights were augmented by a team of tutors, which accompanied main meetings throughout the proje"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.00650","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":"2026-05-18T00:06:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bL2mZcRRGEQlDQDIXAJikvK1EAEuAUUgKpZgC0pgvO+cWKL3cYdWiw8dOTx8K+7g44+j+T0Vzjs4w1riXdQrBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T18:01:08.913019Z"},"content_sha256":"7b854aa37fdead6cd33e90af2b80a72b256b404493aeba6a9db249121c75d013","schema_version":"1.0","event_id":"sha256:7b854aa37fdead6cd33e90af2b80a72b256b404493aeba6a9db249121c75d013"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/L7YJ6BNZBVBTRTIMZDR7W3YIGZ/bundle.json","state_url":"https://pith.science/pith/L7YJ6BNZBVBTRTIMZDR7W3YIGZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/L7YJ6BNZBVBTRTIMZDR7W3YIGZ/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":"2026-06-04T18:01:08Z","links":{"resolver":"https://pith.science/pith/L7YJ6BNZBVBTRTIMZDR7W3YIGZ","bundle":"https://pith.science/pith/L7YJ6BNZBVBTRTIMZDR7W3YIGZ/bundle.json","state":"https://pith.science/pith/L7YJ6BNZBVBTRTIMZDR7W3YIGZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/L7YJ6BNZBVBTRTIMZDR7W3YIGZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:L7YJ6BNZBVBTRTIMZDR7W3YIGZ","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":"23f94f5525c25bb9128822422e669b5900677bb328a4aaa43d0cfb767f0b9d13","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2018-09-03T16:42:49Z","title_canon_sha256":"0441b81a2d2fb39f8bc8555b4dac05522ce9cb10016b068f57424ea25002baa7"},"schema_version":"1.0","source":{"id":"1809.00650","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.00650","created_at":"2026-05-18T00:06:32Z"},{"alias_kind":"arxiv_version","alias_value":"1809.00650v1","created_at":"2026-05-18T00:06:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.00650","created_at":"2026-05-18T00:06:32Z"},{"alias_kind":"pith_short_12","alias_value":"L7YJ6BNZBVBT","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_16","alias_value":"L7YJ6BNZBVBTRTIM","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_8","alias_value":"L7YJ6BNZ","created_at":"2026-05-18T12:32:33Z"}],"graph_snapshots":[{"event_id":"sha256:7b854aa37fdead6cd33e90af2b80a72b256b404493aeba6a9db249121c75d013","target":"graph","created_at":"2026-05-18T00:06:32Z","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":"Agile methods are best taught in a hands-on fashion in realistic projects. The main challenge in doing so is to assess whether students apply the methods correctly without requiring complete supervision throughout the entire project. This paper presents experiences from a classroom project where 38 students developed a single system using a scaled version of Scrum. Surveys helped us to identify which elements of Scrum correlated most with student satisfaction or posed the biggest challenges. These insights were augmented by a team of tutors, which accompanied main meetings throughout the proje","authors_text":"Christoph Matthies, Hasso Plattner, Keven Richly, Matthias Uflacker, Thomas Kowark","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2018-09-03T16:42:49Z","title":"How Surveys, Tutors, and Software Help to Assess Scrum Adoption in a Classroom Software Engineering Project"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.00650","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":"sha256:16ebdef488c275d9aba1bf620485503a559ecb08eb16502d8456259cd138f336","target":"record","created_at":"2026-05-18T00:06:32Z","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":"23f94f5525c25bb9128822422e669b5900677bb328a4aaa43d0cfb767f0b9d13","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2018-09-03T16:42:49Z","title_canon_sha256":"0441b81a2d2fb39f8bc8555b4dac05522ce9cb10016b068f57424ea25002baa7"},"schema_version":"1.0","source":{"id":"1809.00650","kind":"arxiv","version":1}},"canonical_sha256":"5ff09f05b90d4338cd0cc8e3fb6f0836509e127a5ab0e548cf420356f111bf3a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5ff09f05b90d4338cd0cc8e3fb6f0836509e127a5ab0e548cf420356f111bf3a","first_computed_at":"2026-05-18T00:06:32.881338Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:06:32.881338Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZPFuNkqX/7kCg97KQdI2u4F/l1QBopZsOd8srKQysyu/Jwcpamg93xnT7yLYHiVs5vBea8OPb/5bJpFSTHXaDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:06:32.882056Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.00650","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:16ebdef488c275d9aba1bf620485503a559ecb08eb16502d8456259cd138f336","sha256:7b854aa37fdead6cd33e90af2b80a72b256b404493aeba6a9db249121c75d013"],"state_sha256":"00d673aed69e618954e532ffc81226ca6521e52881f5dc4fc80b0308ff176426"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3D7/la0cBDZxNUO9Nnz8OIU1jGEKoS1U81SKMqS5SNcGSCEIpGdNLVFnAB172ZRome+OSoX//t/Jg7hIJ5suBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T18:01:08.914957Z","bundle_sha256":"c655a79ac11b6dbf3a94ffdda21e5bb22b89005104786120dabb701a1f6dba2c"}}