{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:H4ZLCCNUW5YYBUWV7HEUYPXG62","short_pith_number":"pith:H4ZLCCNU","canonical_record":{"source":{"id":"1308.4462","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2013-08-21T01:23:52Z","cross_cats_sorted":[],"title_canon_sha256":"af49fbbd052bbf7b0de10c07201dc848f19e9652c5b2cad77b5a1c88273bfd9f","abstract_canon_sha256":"cc6c0a713d6b982eba81dea98b8592de4cf5c52857329f23fef427dc14c09c65"},"schema_version":"1.0"},"canonical_sha256":"3f32b109b4b77180d2d5f9c94c3ee6f6bee0af3c146c1ea02159896f0af0bb72","source":{"kind":"arxiv","id":"1308.4462","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.4462","created_at":"2026-05-18T03:15:31Z"},{"alias_kind":"arxiv_version","alias_value":"1308.4462v1","created_at":"2026-05-18T03:15:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.4462","created_at":"2026-05-18T03:15:31Z"},{"alias_kind":"pith_short_12","alias_value":"H4ZLCCNUW5YY","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_16","alias_value":"H4ZLCCNUW5YYBUWV","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_8","alias_value":"H4ZLCCNU","created_at":"2026-05-18T12:27:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:H4ZLCCNUW5YYBUWV7HEUYPXG62","target":"record","payload":{"canonical_record":{"source":{"id":"1308.4462","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2013-08-21T01:23:52Z","cross_cats_sorted":[],"title_canon_sha256":"af49fbbd052bbf7b0de10c07201dc848f19e9652c5b2cad77b5a1c88273bfd9f","abstract_canon_sha256":"cc6c0a713d6b982eba81dea98b8592de4cf5c52857329f23fef427dc14c09c65"},"schema_version":"1.0"},"canonical_sha256":"3f32b109b4b77180d2d5f9c94c3ee6f6bee0af3c146c1ea02159896f0af0bb72","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:15:31.775233Z","signature_b64":"vWzDeMiFPpNu5DTUOJqKpUAt+o8dMOYhhDKmWisLq5v6hMH352kZoTSVhjB+cKdVl3jTf9Pfi8crgyGfTca6DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3f32b109b4b77180d2d5f9c94c3ee6f6bee0af3c146c1ea02159896f0af0bb72","last_reissued_at":"2026-05-18T03:15:31.774386Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:15:31.774386Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1308.4462","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":"2026-05-18T03:15:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3qbaUvnS87AlFh/+MmAM2RiwGPx/InPsaYTfin+GUg6YNdn2K92miHYwvDBIpFU8LtwnM7VH4dZiMlONDE3pCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T10:26:02.581529Z"},"content_sha256":"e34f0b418549d4bbce92493e6233b1c7b3f4c383c294206f58e6f06077dbbe70","schema_version":"1.0","event_id":"sha256:e34f0b418549d4bbce92493e6233b1c7b3f4c383c294206f58e6f06077dbbe70"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:H4ZLCCNUW5YYBUWV7HEUYPXG62","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Twisting the Alive Particle Filter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"stat.ME","authors_text":"Adam Persing, Ajay Jasra","submitted_at":"2013-08-21T01:23:52Z","abstract_excerpt":"This work focuses on sampling from hidden Markov models (Cappe et al, 2005) whose observations have intractable density functions. We develop a new sequential Monte Carlo (Doucet et al, 2000 and Gordon et al, 1993) algorithm and a new particle marginal Metropolis-Hastings (Andrieu et al, 2010) algorithm for these purposes. We build from Jasra, et al (2013) and Whiteley, et al (2013) to construct the sequential Monte Carlo (SMC) algorithm (which we call the alive twisted particle filter). Like the alive particle filter of Jasra, et al (2013), our new SMC algorithm adopts an approximate Bayesian"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.4462","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":"2026-05-18T03:15:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qYEH7yWaWPwnhcsu/lAe+BtGF4G9H7C2PS+k6ZEAJae5qEVtv/3dPL7EF9iNHxYK4j1B3/TEdLni3667V9LoBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T10:26:02.581875Z"},"content_sha256":"4045dff04aec51926c69769aecc5eceea4c73137e198247dd68382be00499c79","schema_version":"1.0","event_id":"sha256:4045dff04aec51926c69769aecc5eceea4c73137e198247dd68382be00499c79"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/H4ZLCCNUW5YYBUWV7HEUYPXG62/bundle.json","state_url":"https://pith.science/pith/H4ZLCCNUW5YYBUWV7HEUYPXG62/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/H4ZLCCNUW5YYBUWV7HEUYPXG62/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":"2026-05-28T10:26:02Z","links":{"resolver":"https://pith.science/pith/H4ZLCCNUW5YYBUWV7HEUYPXG62","bundle":"https://pith.science/pith/H4ZLCCNUW5YYBUWV7HEUYPXG62/bundle.json","state":"https://pith.science/pith/H4ZLCCNUW5YYBUWV7HEUYPXG62/state.json","well_known_bundle":"https://pith.science/.well-known/pith/H4ZLCCNUW5YYBUWV7HEUYPXG62/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:H4ZLCCNUW5YYBUWV7HEUYPXG62","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":"cc6c0a713d6b982eba81dea98b8592de4cf5c52857329f23fef427dc14c09c65","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2013-08-21T01:23:52Z","title_canon_sha256":"af49fbbd052bbf7b0de10c07201dc848f19e9652c5b2cad77b5a1c88273bfd9f"},"schema_version":"1.0","source":{"id":"1308.4462","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.4462","created_at":"2026-05-18T03:15:31Z"},{"alias_kind":"arxiv_version","alias_value":"1308.4462v1","created_at":"2026-05-18T03:15:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.4462","created_at":"2026-05-18T03:15:31Z"},{"alias_kind":"pith_short_12","alias_value":"H4ZLCCNUW5YY","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_16","alias_value":"H4ZLCCNUW5YYBUWV","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_8","alias_value":"H4ZLCCNU","created_at":"2026-05-18T12:27:46Z"}],"graph_snapshots":[{"event_id":"sha256:4045dff04aec51926c69769aecc5eceea4c73137e198247dd68382be00499c79","target":"graph","created_at":"2026-05-18T03:15:31Z","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":"This work focuses on sampling from hidden Markov models (Cappe et al, 2005) whose observations have intractable density functions. We develop a new sequential Monte Carlo (Doucet et al, 2000 and Gordon et al, 1993) algorithm and a new particle marginal Metropolis-Hastings (Andrieu et al, 2010) algorithm for these purposes. We build from Jasra, et al (2013) and Whiteley, et al (2013) to construct the sequential Monte Carlo (SMC) algorithm (which we call the alive twisted particle filter). Like the alive particle filter of Jasra, et al (2013), our new SMC algorithm adopts an approximate Bayesian","authors_text":"Adam Persing, Ajay Jasra","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2013-08-21T01:23:52Z","title":"Twisting the Alive Particle Filter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.4462","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:e34f0b418549d4bbce92493e6233b1c7b3f4c383c294206f58e6f06077dbbe70","target":"record","created_at":"2026-05-18T03:15:31Z","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":"cc6c0a713d6b982eba81dea98b8592de4cf5c52857329f23fef427dc14c09c65","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2013-08-21T01:23:52Z","title_canon_sha256":"af49fbbd052bbf7b0de10c07201dc848f19e9652c5b2cad77b5a1c88273bfd9f"},"schema_version":"1.0","source":{"id":"1308.4462","kind":"arxiv","version":1}},"canonical_sha256":"3f32b109b4b77180d2d5f9c94c3ee6f6bee0af3c146c1ea02159896f0af0bb72","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3f32b109b4b77180d2d5f9c94c3ee6f6bee0af3c146c1ea02159896f0af0bb72","first_computed_at":"2026-05-18T03:15:31.774386Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:15:31.774386Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vWzDeMiFPpNu5DTUOJqKpUAt+o8dMOYhhDKmWisLq5v6hMH352kZoTSVhjB+cKdVl3jTf9Pfi8crgyGfTca6DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:15:31.775233Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.4462","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e34f0b418549d4bbce92493e6233b1c7b3f4c383c294206f58e6f06077dbbe70","sha256:4045dff04aec51926c69769aecc5eceea4c73137e198247dd68382be00499c79"],"state_sha256":"878ae711372d9d08f3c856c76cb30f6152db8838c776e2e875b0100262ab1096"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9Rv2SCJYfZvzN3g/Q87A1pJcYVsni83luiOgPYXc3mzT8oe5ZEM/baohwVtO67rGYxtzxdPqQA4XENGAlj6XBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T10:26:02.583861Z","bundle_sha256":"827ae3d80c81fb488291b9265581f85e9c53eff7deb6a67c1288462968b05d2f"}}