{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:MVNGUSFZCBPJ4Z4C57TIMUO4EY","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":"fc0ca05bca72fce0eb3fa05dbe2234c102c84a6f052c72c82f2c938b2468d71f","cross_cats_sorted":["cs.AI","stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2017-01-04T10:25:04Z","title_canon_sha256":"7abbefb029b7b5702adf23782620497f722522e6a647592fc4cc06fc89064e49"},"schema_version":"1.0","source":{"id":"1701.02359","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.02359","created_at":"2026-05-18T00:53:04Z"},{"alias_kind":"arxiv_version","alias_value":"1701.02359v1","created_at":"2026-05-18T00:53:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.02359","created_at":"2026-05-18T00:53:04Z"},{"alias_kind":"pith_short_12","alias_value":"MVNGUSFZCBPJ","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"MVNGUSFZCBPJ4Z4C","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"MVNGUSFZ","created_at":"2026-05-18T12:31:31Z"}],"graph_snapshots":[{"event_id":"sha256:fffc14fcb9c78c885e7ee65142f831529f2e5b9d097589768f66d7e3c6dbe4b5","target":"graph","created_at":"2026-05-18T00:53:04Z","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":"Maximizing product use is a central goal of many businesses, which makes retention and monetization two central analytics metrics in games. Player retention may refer to various duration variables quantifying product use: total playtime or session playtime are popular research targets, and active playtime is well-suited for subscription games. Such research often has the goal of increasing player retention or conversely decreasing player churn. Survival analysis is a framework of powerful tools well suited for retention type data. This paper contributes new methods to game analytics on how pla","authors_text":"Antti Airola, Jukka Heikkonen, Markus Viljanen, Tapio Pahikkala","cross_cats":["cs.AI","stat.ML"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2017-01-04T10:25:04Z","title":"Playtime Measurement with Survival Analysis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.02359","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:b7dd497700f45257806aeba6155353a8d873df87076671415681ee4707ce719a","target":"record","created_at":"2026-05-18T00:53:04Z","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":"fc0ca05bca72fce0eb3fa05dbe2234c102c84a6f052c72c82f2c938b2468d71f","cross_cats_sorted":["cs.AI","stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2017-01-04T10:25:04Z","title_canon_sha256":"7abbefb029b7b5702adf23782620497f722522e6a647592fc4cc06fc89064e49"},"schema_version":"1.0","source":{"id":"1701.02359","kind":"arxiv","version":1}},"canonical_sha256":"655a6a48b9105e9e6782efe68651dc26184a188b5214f566bf007c394ea9d4b4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"655a6a48b9105e9e6782efe68651dc26184a188b5214f566bf007c394ea9d4b4","first_computed_at":"2026-05-18T00:53:04.442269Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:53:04.442269Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZrNRVTOQL/t6OT6KCOFQvCXUz+Meep3PAcpMdgQrSiatCRkONSl6dW3XJBQoBTIGZV/I+xxiWzwS9HzDdPx0AA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:53:04.443047Z","signed_message":"canonical_sha256_bytes"},"source_id":"1701.02359","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b7dd497700f45257806aeba6155353a8d873df87076671415681ee4707ce719a","sha256:fffc14fcb9c78c885e7ee65142f831529f2e5b9d097589768f66d7e3c6dbe4b5"],"state_sha256":"581d89070a82889a4e8c6e76712c8fffe3a026e138ff46ca5581df996152c8d2"}