{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:FSMTOE4ALIGM7BQNHGEGW4XRMP","short_pith_number":"pith:FSMTOE4A","canonical_record":{"source":{"id":"1505.04302","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2015-05-16T17:58:26Z","cross_cats_sorted":[],"title_canon_sha256":"6369de5b7a41c5b11939301e1d884be99cb03d9ef443d759b1b453e3f7fb37ce","abstract_canon_sha256":"c29792da54704b1d9deb54e95efeeb790f59faa94ad17a044c4ae03db8c8d719"},"schema_version":"1.0"},"canonical_sha256":"2c993713805a0ccf860d39886b72f163cdcd2f84cfde9659e079522d09844ffe","source":{"kind":"arxiv","id":"1505.04302","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.04302","created_at":"2026-05-18T02:07:25Z"},{"alias_kind":"arxiv_version","alias_value":"1505.04302v1","created_at":"2026-05-18T02:07:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.04302","created_at":"2026-05-18T02:07:25Z"},{"alias_kind":"pith_short_12","alias_value":"FSMTOE4ALIGM","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_16","alias_value":"FSMTOE4ALIGM7BQN","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_8","alias_value":"FSMTOE4A","created_at":"2026-05-18T12:29:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:FSMTOE4ALIGM7BQNHGEGW4XRMP","target":"record","payload":{"canonical_record":{"source":{"id":"1505.04302","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2015-05-16T17:58:26Z","cross_cats_sorted":[],"title_canon_sha256":"6369de5b7a41c5b11939301e1d884be99cb03d9ef443d759b1b453e3f7fb37ce","abstract_canon_sha256":"c29792da54704b1d9deb54e95efeeb790f59faa94ad17a044c4ae03db8c8d719"},"schema_version":"1.0"},"canonical_sha256":"2c993713805a0ccf860d39886b72f163cdcd2f84cfde9659e079522d09844ffe","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:07:25.793237Z","signature_b64":"vQRpKgu8eJmJ1nKJpJg2QK9bQokkGYsSwwv1Ben+aW3sqcqHLlrw9JCQWGzkRAMVZJaCFL2a8iZPcnxkldKsDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2c993713805a0ccf860d39886b72f163cdcd2f84cfde9659e079522d09844ffe","last_reissued_at":"2026-05-18T02:07:25.792599Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:07:25.792599Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1505.04302","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":"2026-05-18T02:07:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bKdrUwfoOM3xh07wRiZwxuKzoeFL4UZPpEr2JrDyTJIeRFUfWn/a8psQFeZA0F0sYR8ObRb4L6aOWZ24LYXhAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T22:23:22.785470Z"},"content_sha256":"94025edf1b1d213b26b6bf0975e5a4d2402c089c488c402c0f867b770d58f092","schema_version":"1.0","event_id":"sha256:94025edf1b1d213b26b6bf0975e5a4d2402c089c488c402c0f867b770d58f092"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:FSMTOE4ALIGM7BQNHGEGW4XRMP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Change Points via Probabilistically Pruned Objectives","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"stat.ME","authors_text":"David S. Matteson, Nicholas A. James","submitted_at":"2015-05-16T17:58:26Z","abstract_excerpt":"The concept of homogeneity plays a critical role in statistics, both in its applications as well as its theory. Change point analysis is a statistical tool that aims to attain homogeneity within time series data. This is accomplished through partitioning the time series into a number of contiguous homogeneous segments. The applications of such techniques range from identifying chromosome alterations to solar flare detection. In this manuscript we present a general purpose search algorithm called cp3o that can be used to identify change points in multivariate time series. This new search proced"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.04302","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":"2026-05-18T02:07:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r1vDuxNzmNeQToCouT7ZO20u6SNJKqR9YHKPa74jK3JHFD3g6kgmz5dXYEWlQotBk64xwSJNXvN++C914svMCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T22:23:22.786193Z"},"content_sha256":"662724ef6fc146e7226ed70dea477a7ffd8d4733bbf63e511adcacfe62dec2a5","schema_version":"1.0","event_id":"sha256:662724ef6fc146e7226ed70dea477a7ffd8d4733bbf63e511adcacfe62dec2a5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FSMTOE4ALIGM7BQNHGEGW4XRMP/bundle.json","state_url":"https://pith.science/pith/FSMTOE4ALIGM7BQNHGEGW4XRMP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FSMTOE4ALIGM7BQNHGEGW4XRMP/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":"2026-05-30T22:23:22Z","links":{"resolver":"https://pith.science/pith/FSMTOE4ALIGM7BQNHGEGW4XRMP","bundle":"https://pith.science/pith/FSMTOE4ALIGM7BQNHGEGW4XRMP/bundle.json","state":"https://pith.science/pith/FSMTOE4ALIGM7BQNHGEGW4XRMP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FSMTOE4ALIGM7BQNHGEGW4XRMP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:FSMTOE4ALIGM7BQNHGEGW4XRMP","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":"c29792da54704b1d9deb54e95efeeb790f59faa94ad17a044c4ae03db8c8d719","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2015-05-16T17:58:26Z","title_canon_sha256":"6369de5b7a41c5b11939301e1d884be99cb03d9ef443d759b1b453e3f7fb37ce"},"schema_version":"1.0","source":{"id":"1505.04302","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.04302","created_at":"2026-05-18T02:07:25Z"},{"alias_kind":"arxiv_version","alias_value":"1505.04302v1","created_at":"2026-05-18T02:07:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.04302","created_at":"2026-05-18T02:07:25Z"},{"alias_kind":"pith_short_12","alias_value":"FSMTOE4ALIGM","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_16","alias_value":"FSMTOE4ALIGM7BQN","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_8","alias_value":"FSMTOE4A","created_at":"2026-05-18T12:29:22Z"}],"graph_snapshots":[{"event_id":"sha256:662724ef6fc146e7226ed70dea477a7ffd8d4733bbf63e511adcacfe62dec2a5","target":"graph","created_at":"2026-05-18T02:07:25Z","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":"The concept of homogeneity plays a critical role in statistics, both in its applications as well as its theory. Change point analysis is a statistical tool that aims to attain homogeneity within time series data. This is accomplished through partitioning the time series into a number of contiguous homogeneous segments. The applications of such techniques range from identifying chromosome alterations to solar flare detection. In this manuscript we present a general purpose search algorithm called cp3o that can be used to identify change points in multivariate time series. This new search proced","authors_text":"David S. Matteson, Nicholas A. James","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2015-05-16T17:58:26Z","title":"Change Points via Probabilistically Pruned Objectives"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.04302","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":"sha256:94025edf1b1d213b26b6bf0975e5a4d2402c089c488c402c0f867b770d58f092","target":"record","created_at":"2026-05-18T02:07:25Z","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":"c29792da54704b1d9deb54e95efeeb790f59faa94ad17a044c4ae03db8c8d719","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2015-05-16T17:58:26Z","title_canon_sha256":"6369de5b7a41c5b11939301e1d884be99cb03d9ef443d759b1b453e3f7fb37ce"},"schema_version":"1.0","source":{"id":"1505.04302","kind":"arxiv","version":1}},"canonical_sha256":"2c993713805a0ccf860d39886b72f163cdcd2f84cfde9659e079522d09844ffe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2c993713805a0ccf860d39886b72f163cdcd2f84cfde9659e079522d09844ffe","first_computed_at":"2026-05-18T02:07:25.792599Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:07:25.792599Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vQRpKgu8eJmJ1nKJpJg2QK9bQokkGYsSwwv1Ben+aW3sqcqHLlrw9JCQWGzkRAMVZJaCFL2a8iZPcnxkldKsDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:07:25.793237Z","signed_message":"canonical_sha256_bytes"},"source_id":"1505.04302","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:94025edf1b1d213b26b6bf0975e5a4d2402c089c488c402c0f867b770d58f092","sha256:662724ef6fc146e7226ed70dea477a7ffd8d4733bbf63e511adcacfe62dec2a5"],"state_sha256":"30ee8f28d72d3b7481a1be463213f4eb5eb2f691af467bf83145712c8b56a4f7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KkRtqUlDsW/nYriLioki7XqSpRe/NUy/Hcz8xm23iYwxj9xys/ZHlwjU4DaIqcMI2Jw/SeauzXt5iwaAAPW7Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T22:23:22.789950Z","bundle_sha256":"dd0426603782ab42da5a6736cd08d02c531a954d28adbca33fb97078b9295cf0"}}