{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:FA42RSU4PS5QMUZEQ3UX7NERJX","short_pith_number":"pith:FA42RSU4","canonical_record":{"source":{"id":"1803.07734","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2018-03-21T03:44:06Z","cross_cats_sorted":[],"title_canon_sha256":"b125e5c53307302bdbf0ba8b0b1817ad4bd2f2d6e2a59fc7551a81dcdc0326bb","abstract_canon_sha256":"0a74af0274b62bb0f56747707451dfe45a736a01c69beea1eedcdf23868ff381"},"schema_version":"1.0"},"canonical_sha256":"2839a8ca9c7cbb06532486e97fb4914ded1e2139029441419e91cb582a1a9a54","source":{"kind":"arxiv","id":"1803.07734","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.07734","created_at":"2026-05-18T00:20:29Z"},{"alias_kind":"arxiv_version","alias_value":"1803.07734v1","created_at":"2026-05-18T00:20:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.07734","created_at":"2026-05-18T00:20:29Z"},{"alias_kind":"pith_short_12","alias_value":"FA42RSU4PS5Q","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"FA42RSU4PS5QMUZE","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"FA42RSU4","created_at":"2026-05-18T12:32:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:FA42RSU4PS5QMUZEQ3UX7NERJX","target":"record","payload":{"canonical_record":{"source":{"id":"1803.07734","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2018-03-21T03:44:06Z","cross_cats_sorted":[],"title_canon_sha256":"b125e5c53307302bdbf0ba8b0b1817ad4bd2f2d6e2a59fc7551a81dcdc0326bb","abstract_canon_sha256":"0a74af0274b62bb0f56747707451dfe45a736a01c69beea1eedcdf23868ff381"},"schema_version":"1.0"},"canonical_sha256":"2839a8ca9c7cbb06532486e97fb4914ded1e2139029441419e91cb582a1a9a54","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:20:29.121653Z","signature_b64":"SzKkkdQ30ijYGqQGGg45VDpvaSKOPqS0+zIyMeQbsSuONYJmfrbMOwp+6OlSFkA4UctP4OyYJyCTF42v6xtZDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2839a8ca9c7cbb06532486e97fb4914ded1e2139029441419e91cb582a1a9a54","last_reissued_at":"2026-05-18T00:20:29.121199Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:20:29.121199Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1803.07734","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":"2026-05-18T00:20:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b8pblge3bIFNJw9+YxHfLkxDScKwMTLq4jiz5no0nv+R/rtzOBI/SXY3wq6sBehX0ivXU9wz72eElpIbOicBBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T22:18:15.545785Z"},"content_sha256":"37b2bee43be0699ebfee8465ec26813817152a9aeed186aa8ed5e787f6b324ac","schema_version":"1.0","event_id":"sha256:37b2bee43be0699ebfee8465ec26813817152a9aeed186aa8ed5e787f6b324ac"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:FA42RSU4PS5QMUZEQ3UX7NERJX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Adaptive Sequential MCMC for Combined State and Parameter Estimation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"stat.AP","authors_text":"David Bryant, Matthew Parry, Zhanglong Cao","submitted_at":"2018-03-21T03:44:06Z","abstract_excerpt":"In the case of a linear state space model, we implement an MCMC sampler with two phases. In the learning phase, a self-tuning sampler is used to learn the parameter mean and covariance structure. In the estimation phase, the parameter mean and covariance structure informs the proposed mechanism and is also used in a delayed-acceptance algorithm. Information on the resulting state of the system is given by a Gaussian mixture. In on-line mode, the algorithm is adaptive and uses a sliding window approach to accelerate sampling speed and to maintain appropriate acceptance rates. We apply the algor"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.07734","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":"2026-05-18T00:20:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NrCMNpnut77DERqSGT9t1vqSmqyiRMbkFNCVV+FPilC/qAep3yzTc7puYi+pkNWUgkNWi197RCOAl7I/PWeRDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T22:18:15.546133Z"},"content_sha256":"57810e9b71f1cf1d0bca926f1f944055229b642c930db78964b186c847c27ea6","schema_version":"1.0","event_id":"sha256:57810e9b71f1cf1d0bca926f1f944055229b642c930db78964b186c847c27ea6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FA42RSU4PS5QMUZEQ3UX7NERJX/bundle.json","state_url":"https://pith.science/pith/FA42RSU4PS5QMUZEQ3UX7NERJX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FA42RSU4PS5QMUZEQ3UX7NERJX/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":"2026-06-02T22:18:15Z","links":{"resolver":"https://pith.science/pith/FA42RSU4PS5QMUZEQ3UX7NERJX","bundle":"https://pith.science/pith/FA42RSU4PS5QMUZEQ3UX7NERJX/bundle.json","state":"https://pith.science/pith/FA42RSU4PS5QMUZEQ3UX7NERJX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FA42RSU4PS5QMUZEQ3UX7NERJX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:FA42RSU4PS5QMUZEQ3UX7NERJX","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":"0a74af0274b62bb0f56747707451dfe45a736a01c69beea1eedcdf23868ff381","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2018-03-21T03:44:06Z","title_canon_sha256":"b125e5c53307302bdbf0ba8b0b1817ad4bd2f2d6e2a59fc7551a81dcdc0326bb"},"schema_version":"1.0","source":{"id":"1803.07734","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.07734","created_at":"2026-05-18T00:20:29Z"},{"alias_kind":"arxiv_version","alias_value":"1803.07734v1","created_at":"2026-05-18T00:20:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.07734","created_at":"2026-05-18T00:20:29Z"},{"alias_kind":"pith_short_12","alias_value":"FA42RSU4PS5Q","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"FA42RSU4PS5QMUZE","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"FA42RSU4","created_at":"2026-05-18T12:32:22Z"}],"graph_snapshots":[{"event_id":"sha256:57810e9b71f1cf1d0bca926f1f944055229b642c930db78964b186c847c27ea6","target":"graph","created_at":"2026-05-18T00:20:29Z","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":"In the case of a linear state space model, we implement an MCMC sampler with two phases. In the learning phase, a self-tuning sampler is used to learn the parameter mean and covariance structure. In the estimation phase, the parameter mean and covariance structure informs the proposed mechanism and is also used in a delayed-acceptance algorithm. Information on the resulting state of the system is given by a Gaussian mixture. In on-line mode, the algorithm is adaptive and uses a sliding window approach to accelerate sampling speed and to maintain appropriate acceptance rates. We apply the algor","authors_text":"David Bryant, Matthew Parry, Zhanglong Cao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2018-03-21T03:44:06Z","title":"Adaptive Sequential MCMC for Combined State and Parameter Estimation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.07734","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":"sha256:37b2bee43be0699ebfee8465ec26813817152a9aeed186aa8ed5e787f6b324ac","target":"record","created_at":"2026-05-18T00:20:29Z","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":"0a74af0274b62bb0f56747707451dfe45a736a01c69beea1eedcdf23868ff381","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2018-03-21T03:44:06Z","title_canon_sha256":"b125e5c53307302bdbf0ba8b0b1817ad4bd2f2d6e2a59fc7551a81dcdc0326bb"},"schema_version":"1.0","source":{"id":"1803.07734","kind":"arxiv","version":1}},"canonical_sha256":"2839a8ca9c7cbb06532486e97fb4914ded1e2139029441419e91cb582a1a9a54","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2839a8ca9c7cbb06532486e97fb4914ded1e2139029441419e91cb582a1a9a54","first_computed_at":"2026-05-18T00:20:29.121199Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:20:29.121199Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SzKkkdQ30ijYGqQGGg45VDpvaSKOPqS0+zIyMeQbsSuONYJmfrbMOwp+6OlSFkA4UctP4OyYJyCTF42v6xtZDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:20:29.121653Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.07734","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:37b2bee43be0699ebfee8465ec26813817152a9aeed186aa8ed5e787f6b324ac","sha256:57810e9b71f1cf1d0bca926f1f944055229b642c930db78964b186c847c27ea6"],"state_sha256":"84284e6b8151f214a06c70a528226c1ff048ec46d3fa3d84a398dcd158df61b8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H6kSKEBSjtSXP5z3x1QBtjcRCBO1xZ2JZuhqQapX3Mzmp+kEZhBSFQ2/aTDGBv3glk3fBny5Y1VWUw4OowoSCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T22:18:15.548173Z","bundle_sha256":"fb5b8a5b5de20e27f73231b37c8e097301ab395df6a93fcf629c843bd2f039e1"}}