{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:4BIBZRV7JOI6UNZTIHE53CUPF7","short_pith_number":"pith:4BIBZRV7","canonical_record":{"source":{"id":"1812.05591","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2018-12-13T18:57:53Z","cross_cats_sorted":["cs.AI","cs.MA"],"title_canon_sha256":"ecf53d06d287ee3b9cb0de4cfa27f2bc03f22c3e761038bb7aad8b1bb8e78a9f","abstract_canon_sha256":"10257f2fbb29bbce422716ca000d1b4cc45c21e7978515218a0bcc3c7410ee3b"},"schema_version":"1.0"},"canonical_sha256":"e0501cc6bf4b91ea373341c9dd8a8f2ffa940ffbbd18388b646670199ff04848","source":{"kind":"arxiv","id":"1812.05591","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.05591","created_at":"2026-05-17T23:52:03Z"},{"alias_kind":"arxiv_version","alias_value":"1812.05591v4","created_at":"2026-05-17T23:52:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.05591","created_at":"2026-05-17T23:52:03Z"},{"alias_kind":"pith_short_12","alias_value":"4BIBZRV7JOI6","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"4BIBZRV7JOI6UNZT","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"4BIBZRV7","created_at":"2026-05-18T12:32:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:4BIBZRV7JOI6UNZTIHE53CUPF7","target":"record","payload":{"canonical_record":{"source":{"id":"1812.05591","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2018-12-13T18:57:53Z","cross_cats_sorted":["cs.AI","cs.MA"],"title_canon_sha256":"ecf53d06d287ee3b9cb0de4cfa27f2bc03f22c3e761038bb7aad8b1bb8e78a9f","abstract_canon_sha256":"10257f2fbb29bbce422716ca000d1b4cc45c21e7978515218a0bcc3c7410ee3b"},"schema_version":"1.0"},"canonical_sha256":"e0501cc6bf4b91ea373341c9dd8a8f2ffa940ffbbd18388b646670199ff04848","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:52:03.701922Z","signature_b64":"p5/2IKivKShJCPKSYC7NfoE+LlppZC5ClXXx1jiBHc7wr0JymPLOsx20sfqbZSEoJvOkg2nNscihoUwjWT7QBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e0501cc6bf4b91ea373341c9dd8a8f2ffa940ffbbd18388b646670199ff04848","last_reissued_at":"2026-05-17T23:52:03.701536Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:52:03.701536Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1812.05591","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:52:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rF8H3k+S+m4iNwYqEZy+AhymcFKldLet677ul8+eiGhg3tf+PJH/BuhVrjxj/9BDWQZwj7WWKRH6fLwQXJhZCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T13:38:09.718419Z"},"content_sha256":"5ab4036060034e18f35535da0e12d88c58b44d5c2889db6ecdec3d6a1b51c1e3","schema_version":"1.0","event_id":"sha256:5ab4036060034e18f35535da0e12d88c58b44d5c2889db6ecdec3d6a1b51c1e3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:4BIBZRV7JOI6UNZTIHE53CUPF7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"TuSeRACT: Turn-Sample-Based Real-Time Traffic Signal Control","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI","cs.MA"],"primary_cat":"cs.SY","authors_text":"Pradeep Varakantham, Srishti Dhamija","submitted_at":"2018-12-13T18:57:53Z","abstract_excerpt":"Real-time traffic signal control is a challenging problem owing to constantly changing traffic demand patterns, limited planning time and various sources of uncertainty (e.g., turn movements, vehicle detection) in the real world. SURTRAC (Scalable URban TRAffic Control) is a recently developed traffic signal control approach which computes delay-minimizing and coordinated (across neighbouring traffic lights) schedules of oncoming vehicle clusters in real time. To ensure real-time responsiveness in the presence of turn-induced uncertainty, SURTRAC computes schedules which minimize the delay for"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.05591","kind":"arxiv","version":4},"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":"2026-05-17T23:52:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HxSHXMAZAHfdRHTp1BXzg97Cu0qkp5HsDqMWvjfZtYtDXNl8j0bJhuWoqjwShTugjiEdnassLmIRF2/VmEPYDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T13:38:09.718760Z"},"content_sha256":"163f2e757f0eb9fc55ab31a46004c36fed33c84bef668be12cb845e41d1b8e58","schema_version":"1.0","event_id":"sha256:163f2e757f0eb9fc55ab31a46004c36fed33c84bef668be12cb845e41d1b8e58"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4BIBZRV7JOI6UNZTIHE53CUPF7/bundle.json","state_url":"https://pith.science/pith/4BIBZRV7JOI6UNZTIHE53CUPF7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4BIBZRV7JOI6UNZTIHE53CUPF7/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":"2026-07-04T13:38:09Z","links":{"resolver":"https://pith.science/pith/4BIBZRV7JOI6UNZTIHE53CUPF7","bundle":"https://pith.science/pith/4BIBZRV7JOI6UNZTIHE53CUPF7/bundle.json","state":"https://pith.science/pith/4BIBZRV7JOI6UNZTIHE53CUPF7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4BIBZRV7JOI6UNZTIHE53CUPF7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:4BIBZRV7JOI6UNZTIHE53CUPF7","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":"10257f2fbb29bbce422716ca000d1b4cc45c21e7978515218a0bcc3c7410ee3b","cross_cats_sorted":["cs.AI","cs.MA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2018-12-13T18:57:53Z","title_canon_sha256":"ecf53d06d287ee3b9cb0de4cfa27f2bc03f22c3e761038bb7aad8b1bb8e78a9f"},"schema_version":"1.0","source":{"id":"1812.05591","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.05591","created_at":"2026-05-17T23:52:03Z"},{"alias_kind":"arxiv_version","alias_value":"1812.05591v4","created_at":"2026-05-17T23:52:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.05591","created_at":"2026-05-17T23:52:03Z"},{"alias_kind":"pith_short_12","alias_value":"4BIBZRV7JOI6","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"4BIBZRV7JOI6UNZT","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"4BIBZRV7","created_at":"2026-05-18T12:32:05Z"}],"graph_snapshots":[{"event_id":"sha256:163f2e757f0eb9fc55ab31a46004c36fed33c84bef668be12cb845e41d1b8e58","target":"graph","created_at":"2026-05-17T23:52:03Z","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":"Real-time traffic signal control is a challenging problem owing to constantly changing traffic demand patterns, limited planning time and various sources of uncertainty (e.g., turn movements, vehicle detection) in the real world. SURTRAC (Scalable URban TRAffic Control) is a recently developed traffic signal control approach which computes delay-minimizing and coordinated (across neighbouring traffic lights) schedules of oncoming vehicle clusters in real time. To ensure real-time responsiveness in the presence of turn-induced uncertainty, SURTRAC computes schedules which minimize the delay for","authors_text":"Pradeep Varakantham, Srishti Dhamija","cross_cats":["cs.AI","cs.MA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2018-12-13T18:57:53Z","title":"TuSeRACT: Turn-Sample-Based Real-Time Traffic Signal Control"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.05591","kind":"arxiv","version":4},"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":"sha256:5ab4036060034e18f35535da0e12d88c58b44d5c2889db6ecdec3d6a1b51c1e3","target":"record","created_at":"2026-05-17T23:52:03Z","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":"10257f2fbb29bbce422716ca000d1b4cc45c21e7978515218a0bcc3c7410ee3b","cross_cats_sorted":["cs.AI","cs.MA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2018-12-13T18:57:53Z","title_canon_sha256":"ecf53d06d287ee3b9cb0de4cfa27f2bc03f22c3e761038bb7aad8b1bb8e78a9f"},"schema_version":"1.0","source":{"id":"1812.05591","kind":"arxiv","version":4}},"canonical_sha256":"e0501cc6bf4b91ea373341c9dd8a8f2ffa940ffbbd18388b646670199ff04848","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e0501cc6bf4b91ea373341c9dd8a8f2ffa940ffbbd18388b646670199ff04848","first_computed_at":"2026-05-17T23:52:03.701536Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:52:03.701536Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"p5/2IKivKShJCPKSYC7NfoE+LlppZC5ClXXx1jiBHc7wr0JymPLOsx20sfqbZSEoJvOkg2nNscihoUwjWT7QBg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:52:03.701922Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.05591","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5ab4036060034e18f35535da0e12d88c58b44d5c2889db6ecdec3d6a1b51c1e3","sha256:163f2e757f0eb9fc55ab31a46004c36fed33c84bef668be12cb845e41d1b8e58"],"state_sha256":"134a03ad64f7ab247f1112b56ce6b5aaca223923f3508752b23cbb0683f215e7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fxNS8kMdBjXJJXc22LZxiuFzMNju7FlkKOZY5aXPeqjPvO93ZQv7Y98vPCkShuGowNafxmZKOzMG5l3TtDsJCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-04T13:38:09.720600Z","bundle_sha256":"591de11df4404acb69cb04982aa74380363e142c14cd43535391bb347a0789ab"}}