{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:I2I2H3UGFNOSETRCZHWSITA2ZL","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":"855cb2427e6b1d067e669c7bf8c4a7ebe6c77dfabe5c1e90faeb0322611beed9","cross_cats_sorted":["cs.SI","stat.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2018-02-06T15:04:02Z","title_canon_sha256":"a5b57a21e86a6b08e7ac5b4b7bd0c7ce5d2bbd6890cafc12060aa3f2e3fbf549"},"schema_version":"1.0","source":{"id":"1802.01987","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.01987","created_at":"2026-05-17T23:47:31Z"},{"alias_kind":"arxiv_version","alias_value":"1802.01987v3","created_at":"2026-05-17T23:47:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.01987","created_at":"2026-05-17T23:47:31Z"},{"alias_kind":"pith_short_12","alias_value":"I2I2H3UGFNOS","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_16","alias_value":"I2I2H3UGFNOSETRC","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_8","alias_value":"I2I2H3UG","created_at":"2026-05-18T12:32:28Z"}],"graph_snapshots":[{"event_id":"sha256:fa5f5f983218561a71a3e28254620578b5602a0d41d94cb4c8243aa9dea9f6f6","target":"graph","created_at":"2026-05-17T23:47:31Z","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":"We present a hierarchical model of non-homogeneous Poisson processes (NHPP) for information diffusion on online social media, in particular Twitter retweets. The retweets of each original tweet are modelled by a NHPP, for which the intensity function is a product of time-decaying components and another component that depends on the follower count of the original tweet author. The latter allows us to explain or predict the ultimate retweet count by a network centrality-related covariate. The inference algorithm enables the Bayes factor to be computed, in order to facilitate model selection. Fin","authors_text":"Clement Lee, Darren J Wilkinson","cross_cats":["cs.SI","stat.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2018-02-06T15:04:02Z","title":"A hierarchical model of non-homogeneous Poisson processes for Twitter retweets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.01987","kind":"arxiv","version":3},"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":"sha256:8997eb9e90a3f173d7ae2c904d5648ac4244fb7df772d76b67acab7cdc8e452f","target":"record","created_at":"2026-05-17T23:47:31Z","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":"855cb2427e6b1d067e669c7bf8c4a7ebe6c77dfabe5c1e90faeb0322611beed9","cross_cats_sorted":["cs.SI","stat.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2018-02-06T15:04:02Z","title_canon_sha256":"a5b57a21e86a6b08e7ac5b4b7bd0c7ce5d2bbd6890cafc12060aa3f2e3fbf549"},"schema_version":"1.0","source":{"id":"1802.01987","kind":"arxiv","version":3}},"canonical_sha256":"4691a3ee862b5d224e22c9ed244c1acacbbba3e66e3a055345362c7cfba4a852","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4691a3ee862b5d224e22c9ed244c1acacbbba3e66e3a055345362c7cfba4a852","first_computed_at":"2026-05-17T23:47:31.493408Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:47:31.493408Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"is5QAe8XsSXB9CpSStAZeUqcZhiN6lME/q87KwPlp63n4zuQMPfQ1rSVzFbVYQkG5m22mt+0YUQ1OOg0Cj6zBA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:47:31.493891Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.01987","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8997eb9e90a3f173d7ae2c904d5648ac4244fb7df772d76b67acab7cdc8e452f","sha256:fa5f5f983218561a71a3e28254620578b5602a0d41d94cb4c8243aa9dea9f6f6"],"state_sha256":"74d1be32d8bb8132d47dfef0243d8fa47df52805d849cdb27fea7463daf11059"}