{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:MNUT4ANURWDPBG6AUPDSFZFO3A","short_pith_number":"pith:MNUT4ANU","canonical_record":{"source":{"id":"1807.01533","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2018-07-04T12:10:56Z","cross_cats_sorted":["eess.SP"],"title_canon_sha256":"1e71c063723cbced59754a38860adc745fc00abee5dd5d19c4755f32dbde80d6","abstract_canon_sha256":"2069ec186266c63634d6cbf8a768303e5ff4a5591e4ffbffb2a6f26cb601a334"},"schema_version":"1.0"},"canonical_sha256":"63693e01b48d86f09bc0a3c722e4aed825bd94745e7af82da4be98fe2c6c555f","source":{"kind":"arxiv","id":"1807.01533","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.01533","created_at":"2026-05-18T00:11:29Z"},{"alias_kind":"arxiv_version","alias_value":"1807.01533v1","created_at":"2026-05-18T00:11:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.01533","created_at":"2026-05-18T00:11:29Z"},{"alias_kind":"pith_short_12","alias_value":"MNUT4ANURWDP","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"MNUT4ANURWDPBG6A","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"MNUT4ANU","created_at":"2026-05-18T12:32:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:MNUT4ANURWDPBG6AUPDSFZFO3A","target":"record","payload":{"canonical_record":{"source":{"id":"1807.01533","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2018-07-04T12:10:56Z","cross_cats_sorted":["eess.SP"],"title_canon_sha256":"1e71c063723cbced59754a38860adc745fc00abee5dd5d19c4755f32dbde80d6","abstract_canon_sha256":"2069ec186266c63634d6cbf8a768303e5ff4a5591e4ffbffb2a6f26cb601a334"},"schema_version":"1.0"},"canonical_sha256":"63693e01b48d86f09bc0a3c722e4aed825bd94745e7af82da4be98fe2c6c555f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:11:29.510720Z","signature_b64":"yD6wEHy6CbpObEjeIyh6seCLki60MS5KpBG3mvStAqOSKmyn7/WBbAFMIAa7TKMNGZGIFrNzKhkK0qV7MUIkBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"63693e01b48d86f09bc0a3c722e4aed825bd94745e7af82da4be98fe2c6c555f","last_reissued_at":"2026-05-18T00:11:29.510175Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:11:29.510175Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.01533","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":"2026-05-18T00:11:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M/CVQ7GSRdjK4bUpV3nBK2J9B0e9qknglEABvvampcRCeNu2sSMa1lNkJkESZoXo96IXteiwg4r7XeVacyt3BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T01:17:31.858520Z"},"content_sha256":"3bcc260213d7184e4af1e141b3ae0f0061bf161333bc958e85d09e96b0d5151e","schema_version":"1.0","event_id":"sha256:3bcc260213d7184e4af1e141b3ae0f0061bf161333bc958e85d09e96b0d5151e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:MNUT4ANURWDPBG6AUPDSFZFO3A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Distributed Estimation Via a Roaming Token","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["eess.SP"],"primary_cat":"cs.SY","authors_text":"Bruno Sinopoli, Jo\\~ao Xavier, Lucas Balthazar","submitted_at":"2018-07-04T12:10:56Z","abstract_excerpt":"We present an algorithm for the problem of linear distributed estimation of a parameter in a network where a set of agents are successively taking measurements. The approach considers a roaming token in a network that carries the estimate, and jumps from one agent to another in its vicinity according to the probabilities of a Markov chain. When the token is at an agent it records the agent's local information. We analyze the proposed algorithm and show that it is consistent and asymptotically optimal, in the sense that its mean-square-error (MSE) rate of decay approaches the centralized one as"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.01533","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":"2026-05-18T00:11:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OAMq1KxHg7KvRPa1L3zVT5O6UpE4vr9SzI//aoIN9sQgKNdrYElcpl2hJCh1w7ZrZtS3slaEFS13EAfjpOThDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T01:17:31.858904Z"},"content_sha256":"242955637ecf2953c341dbfd6b2d0d227bbae2f9ac8ea987aeee0eb58b6c1c80","schema_version":"1.0","event_id":"sha256:242955637ecf2953c341dbfd6b2d0d227bbae2f9ac8ea987aeee0eb58b6c1c80"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MNUT4ANURWDPBG6AUPDSFZFO3A/bundle.json","state_url":"https://pith.science/pith/MNUT4ANURWDPBG6AUPDSFZFO3A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MNUT4ANURWDPBG6AUPDSFZFO3A/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":"2026-05-30T01:17:31Z","links":{"resolver":"https://pith.science/pith/MNUT4ANURWDPBG6AUPDSFZFO3A","bundle":"https://pith.science/pith/MNUT4ANURWDPBG6AUPDSFZFO3A/bundle.json","state":"https://pith.science/pith/MNUT4ANURWDPBG6AUPDSFZFO3A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MNUT4ANURWDPBG6AUPDSFZFO3A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:MNUT4ANURWDPBG6AUPDSFZFO3A","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":"2069ec186266c63634d6cbf8a768303e5ff4a5591e4ffbffb2a6f26cb601a334","cross_cats_sorted":["eess.SP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2018-07-04T12:10:56Z","title_canon_sha256":"1e71c063723cbced59754a38860adc745fc00abee5dd5d19c4755f32dbde80d6"},"schema_version":"1.0","source":{"id":"1807.01533","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.01533","created_at":"2026-05-18T00:11:29Z"},{"alias_kind":"arxiv_version","alias_value":"1807.01533v1","created_at":"2026-05-18T00:11:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.01533","created_at":"2026-05-18T00:11:29Z"},{"alias_kind":"pith_short_12","alias_value":"MNUT4ANURWDP","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"MNUT4ANURWDPBG6A","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"MNUT4ANU","created_at":"2026-05-18T12:32:37Z"}],"graph_snapshots":[{"event_id":"sha256:242955637ecf2953c341dbfd6b2d0d227bbae2f9ac8ea987aeee0eb58b6c1c80","target":"graph","created_at":"2026-05-18T00:11:29Z","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":"We present an algorithm for the problem of linear distributed estimation of a parameter in a network where a set of agents are successively taking measurements. The approach considers a roaming token in a network that carries the estimate, and jumps from one agent to another in its vicinity according to the probabilities of a Markov chain. When the token is at an agent it records the agent's local information. We analyze the proposed algorithm and show that it is consistent and asymptotically optimal, in the sense that its mean-square-error (MSE) rate of decay approaches the centralized one as","authors_text":"Bruno Sinopoli, Jo\\~ao Xavier, Lucas Balthazar","cross_cats":["eess.SP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2018-07-04T12:10:56Z","title":"Distributed Estimation Via a Roaming Token"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.01533","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":"sha256:3bcc260213d7184e4af1e141b3ae0f0061bf161333bc958e85d09e96b0d5151e","target":"record","created_at":"2026-05-18T00:11:29Z","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":"2069ec186266c63634d6cbf8a768303e5ff4a5591e4ffbffb2a6f26cb601a334","cross_cats_sorted":["eess.SP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2018-07-04T12:10:56Z","title_canon_sha256":"1e71c063723cbced59754a38860adc745fc00abee5dd5d19c4755f32dbde80d6"},"schema_version":"1.0","source":{"id":"1807.01533","kind":"arxiv","version":1}},"canonical_sha256":"63693e01b48d86f09bc0a3c722e4aed825bd94745e7af82da4be98fe2c6c555f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"63693e01b48d86f09bc0a3c722e4aed825bd94745e7af82da4be98fe2c6c555f","first_computed_at":"2026-05-18T00:11:29.510175Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:11:29.510175Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yD6wEHy6CbpObEjeIyh6seCLki60MS5KpBG3mvStAqOSKmyn7/WBbAFMIAa7TKMNGZGIFrNzKhkK0qV7MUIkBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:11:29.510720Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.01533","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3bcc260213d7184e4af1e141b3ae0f0061bf161333bc958e85d09e96b0d5151e","sha256:242955637ecf2953c341dbfd6b2d0d227bbae2f9ac8ea987aeee0eb58b6c1c80"],"state_sha256":"3fca16f6117d13743e5c8222447717766fb983fada9facaea3c54df25823ca55"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"icFcO31kZANBZQmVNxe8OLGGeJ/ur/FWSg1JnNThhduqWhuqMz9yleDnqQk5qlbbdjA1/QNQeoVt47ztuPqECA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T01:17:31.862005Z","bundle_sha256":"eb7f6ab1e986ac6b72cfdbe0283f98c85ec2c8f15f0bbf2542e8052d193ea88f"}}