{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:2YZKAT55HJDZTA75CI7IWIQNE7","short_pith_number":"pith:2YZKAT55","canonical_record":{"source":{"id":"1706.02186","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2017-06-07T13:48:28Z","cross_cats_sorted":["physics.soc-ph"],"title_canon_sha256":"a6f7321694afa6682daef46ea58b074c1207c1e898dc3531ab47c3f8dff39232","abstract_canon_sha256":"0be8ec040dc583acf0ebee4ad6c1343f7d94cc851928f83424df4d040064240c"},"schema_version":"1.0"},"canonical_sha256":"d632a04fbd3a479983fd123e8b220d27c359d2a62cb90e1b7468271dcf83eefb","source":{"kind":"arxiv","id":"1706.02186","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.02186","created_at":"2026-05-18T00:42:11Z"},{"alias_kind":"arxiv_version","alias_value":"1706.02186v2","created_at":"2026-05-18T00:42:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.02186","created_at":"2026-05-18T00:42:11Z"},{"alias_kind":"pith_short_12","alias_value":"2YZKAT55HJDZ","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_16","alias_value":"2YZKAT55HJDZTA75","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_8","alias_value":"2YZKAT55","created_at":"2026-05-18T12:30:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:2YZKAT55HJDZTA75CI7IWIQNE7","target":"record","payload":{"canonical_record":{"source":{"id":"1706.02186","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2017-06-07T13:48:28Z","cross_cats_sorted":["physics.soc-ph"],"title_canon_sha256":"a6f7321694afa6682daef46ea58b074c1207c1e898dc3531ab47c3f8dff39232","abstract_canon_sha256":"0be8ec040dc583acf0ebee4ad6c1343f7d94cc851928f83424df4d040064240c"},"schema_version":"1.0"},"canonical_sha256":"d632a04fbd3a479983fd123e8b220d27c359d2a62cb90e1b7468271dcf83eefb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:42:11.889352Z","signature_b64":"cEAXeBflmiw6KTWyI0qK6L6Xa0O4i0jXcNFLWwad25hzU/WqONvLADxtfT7e7dM4kIgdFu8lOB8jVu60LDZUCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d632a04fbd3a479983fd123e8b220d27c359d2a62cb90e1b7468271dcf83eefb","last_reissued_at":"2026-05-18T00:42:11.888585Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:42:11.888585Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1706.02186","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:42:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/Jhz4Ib5LAU8I4HzCAGOUGUn3dbVcsSIsh9r3qjOVhyDn73oCKio14g5eJE032T0VZamaf9HrHiDByFbvBHHDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T23:33:02.072491Z"},"content_sha256":"1455c563f7dcc0c55b456f85bcb44d4d47b4ff6e5cfa460dd99be4f8c0c73eb2","schema_version":"1.0","event_id":"sha256:1455c563f7dcc0c55b456f85bcb44d4d47b4ff6e5cfa460dd99be4f8c0c73eb2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:2YZKAT55HJDZTA75CI7IWIQNE7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Hierarchical Change Point Detection on Dynamic Networks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.soc-ph"],"primary_cat":"cs.SI","authors_text":"Aniket Chakrabarti, David Sivakoff, Srinivasan Parthasarathy, Yu Wang","submitted_at":"2017-06-07T13:48:28Z","abstract_excerpt":"This paper studies change point detection on networks with community structures. It proposes a framework that can detect both local and global changes in networks efficiently. Importantly, it can clearly distinguish the two types of changes. The framework design is generic and as such several state-of-the-art change point detection algorithms can fit in this design. Experiments on both synthetic and real-world networks show that this framework can accurately detect changes while achieving up to 800X speedup."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.02186","kind":"arxiv","version":2},"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":"2026-05-18T00:42:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HYoD9OSovEQPGuGWLjZJJIpPliEi0DkqxFXfpS5rtVf0YFNGNLgLeQ7SnbGwGZcBC35MaMavq8EgaMTiNNxABw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T23:33:02.073127Z"},"content_sha256":"44546316215dbe2bd08d900b3129c453ed34457de55eed21da3a855041c703dd","schema_version":"1.0","event_id":"sha256:44546316215dbe2bd08d900b3129c453ed34457de55eed21da3a855041c703dd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2YZKAT55HJDZTA75CI7IWIQNE7/bundle.json","state_url":"https://pith.science/pith/2YZKAT55HJDZTA75CI7IWIQNE7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2YZKAT55HJDZTA75CI7IWIQNE7/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":"2026-06-04T23:33:02Z","links":{"resolver":"https://pith.science/pith/2YZKAT55HJDZTA75CI7IWIQNE7","bundle":"https://pith.science/pith/2YZKAT55HJDZTA75CI7IWIQNE7/bundle.json","state":"https://pith.science/pith/2YZKAT55HJDZTA75CI7IWIQNE7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2YZKAT55HJDZTA75CI7IWIQNE7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:2YZKAT55HJDZTA75CI7IWIQNE7","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":"0be8ec040dc583acf0ebee4ad6c1343f7d94cc851928f83424df4d040064240c","cross_cats_sorted":["physics.soc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2017-06-07T13:48:28Z","title_canon_sha256":"a6f7321694afa6682daef46ea58b074c1207c1e898dc3531ab47c3f8dff39232"},"schema_version":"1.0","source":{"id":"1706.02186","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.02186","created_at":"2026-05-18T00:42:11Z"},{"alias_kind":"arxiv_version","alias_value":"1706.02186v2","created_at":"2026-05-18T00:42:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.02186","created_at":"2026-05-18T00:42:11Z"},{"alias_kind":"pith_short_12","alias_value":"2YZKAT55HJDZ","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_16","alias_value":"2YZKAT55HJDZTA75","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_8","alias_value":"2YZKAT55","created_at":"2026-05-18T12:30:55Z"}],"graph_snapshots":[{"event_id":"sha256:44546316215dbe2bd08d900b3129c453ed34457de55eed21da3a855041c703dd","target":"graph","created_at":"2026-05-18T00:42:11Z","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":"This paper studies change point detection on networks with community structures. It proposes a framework that can detect both local and global changes in networks efficiently. Importantly, it can clearly distinguish the two types of changes. The framework design is generic and as such several state-of-the-art change point detection algorithms can fit in this design. Experiments on both synthetic and real-world networks show that this framework can accurately detect changes while achieving up to 800X speedup.","authors_text":"Aniket Chakrabarti, David Sivakoff, Srinivasan Parthasarathy, Yu Wang","cross_cats":["physics.soc-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2017-06-07T13:48:28Z","title":"Hierarchical Change Point Detection on Dynamic Networks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.02186","kind":"arxiv","version":2},"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":"sha256:1455c563f7dcc0c55b456f85bcb44d4d47b4ff6e5cfa460dd99be4f8c0c73eb2","target":"record","created_at":"2026-05-18T00:42:11Z","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":"0be8ec040dc583acf0ebee4ad6c1343f7d94cc851928f83424df4d040064240c","cross_cats_sorted":["physics.soc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2017-06-07T13:48:28Z","title_canon_sha256":"a6f7321694afa6682daef46ea58b074c1207c1e898dc3531ab47c3f8dff39232"},"schema_version":"1.0","source":{"id":"1706.02186","kind":"arxiv","version":2}},"canonical_sha256":"d632a04fbd3a479983fd123e8b220d27c359d2a62cb90e1b7468271dcf83eefb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d632a04fbd3a479983fd123e8b220d27c359d2a62cb90e1b7468271dcf83eefb","first_computed_at":"2026-05-18T00:42:11.888585Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:42:11.888585Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cEAXeBflmiw6KTWyI0qK6L6Xa0O4i0jXcNFLWwad25hzU/WqONvLADxtfT7e7dM4kIgdFu8lOB8jVu60LDZUCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:42:11.889352Z","signed_message":"canonical_sha256_bytes"},"source_id":"1706.02186","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1455c563f7dcc0c55b456f85bcb44d4d47b4ff6e5cfa460dd99be4f8c0c73eb2","sha256:44546316215dbe2bd08d900b3129c453ed34457de55eed21da3a855041c703dd"],"state_sha256":"88c4a74b357133242c2fda837e1724baed01d7b683af56a22da3807acb666ef0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7TarIeQfvexzGOBUjzq0FS2nMD4W0qArhE2jwWKrypvoHbWvrxe4/WdMngYPqvqM5tTryo7yRexTz2aMVxcqAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T23:33:02.075712Z","bundle_sha256":"39705caef6e7dfe72f93a1322ccba45d2f88e66239f58e05ec3da6c61138c187"}}