{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:UOZPDWVGBHDTM5DDXPP2NOXR4R","short_pith_number":"pith:UOZPDWVG","canonical_record":{"source":{"id":"1902.09330","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-02-21T22:00:22Z","cross_cats_sorted":[],"title_canon_sha256":"ce4938b414fbc5f66b92934e9b5278aca254df2b70e95f80dfd914b7f7262aab","abstract_canon_sha256":"6af71e3d57c847f9623110ec214e683a58e73e519da96d4c8fa2d3b9d4bb47da"},"schema_version":"1.0"},"canonical_sha256":"a3b2f1daa609c7367463bbdfa6baf1e4779bc1dcca2475f73aa2eeb8e063f277","source":{"kind":"arxiv","id":"1902.09330","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.09330","created_at":"2026-05-17T23:52:46Z"},{"alias_kind":"arxiv_version","alias_value":"1902.09330v1","created_at":"2026-05-17T23:52:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.09330","created_at":"2026-05-17T23:52:46Z"},{"alias_kind":"pith_short_12","alias_value":"UOZPDWVGBHDT","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"UOZPDWVGBHDTM5DD","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"UOZPDWVG","created_at":"2026-05-18T12:33:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:UOZPDWVGBHDTM5DDXPP2NOXR4R","target":"record","payload":{"canonical_record":{"source":{"id":"1902.09330","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-02-21T22:00:22Z","cross_cats_sorted":[],"title_canon_sha256":"ce4938b414fbc5f66b92934e9b5278aca254df2b70e95f80dfd914b7f7262aab","abstract_canon_sha256":"6af71e3d57c847f9623110ec214e683a58e73e519da96d4c8fa2d3b9d4bb47da"},"schema_version":"1.0"},"canonical_sha256":"a3b2f1daa609c7367463bbdfa6baf1e4779bc1dcca2475f73aa2eeb8e063f277","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:52:46.040028Z","signature_b64":"YMelTEef9OjbB5u6wlGRcdYlMjJ/dBVb/aOzTpvIND3gjSn/kzLNisiY0SRqU9CytSpNRj9T74n+C8A9telmBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a3b2f1daa609c7367463bbdfa6baf1e4779bc1dcca2475f73aa2eeb8e063f277","last_reissued_at":"2026-05-17T23:52:46.039430Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:52:46.039430Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1902.09330","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":"2026-05-17T23:52:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sS1vnNkfE486odECLNRhhLmtB/dx6yeov2aAHYDD2dAFgsNXgM4sGpnmD2H6GwNXbfxtatyY4kRXA/Retmy/AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T14:14:05.403741Z"},"content_sha256":"7c01a4caf92664940aacd6070e6b4d35a3f0083fa86c7b30e2184fa8ca2c82a0","schema_version":"1.0","event_id":"sha256:7c01a4caf92664940aacd6070e6b4d35a3f0083fa86c7b30e2184fa8ca2c82a0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:UOZPDWVGBHDTM5DDXPP2NOXR4R","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"PReS: Power Peak Reduction by Real-time Scheduling for Urban Railway Transit","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Ning Zhou, Shiqiong Tong, Yu Chen, Zekun Yang","submitted_at":"2019-02-21T22:00:22Z","abstract_excerpt":"Railway transportation is one of the most popular options for Urban Massive Transportation Systems (UMTS) because of many attractive features. A robust electric power supply is essential to enable normal operation. However, the power peaks appearing at the start time of the vehicles put heavy pressure on the power grid. Reduction of the power peak is a key issue in improving urban railway transit's power efficiency. Researchers have tried to address this problem by making a delicate timetable, but this method often failed to serve the purpose because of the punctuality problem. In this work, t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.09330","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":"2026-05-17T23:52:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1kQ4/qKO41WQdG8usOmA7wMKDqCiZbxuK0EbrQNlrv9YAf80hve1s/09F8CQgw86cRLH/EHgSA7TYLvXBKZvDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T14:14:05.404429Z"},"content_sha256":"7aa4b9efb80cb69fc8234e466b4b74f07eccdd997b5f2f3ee3a3c06ce33573f6","schema_version":"1.0","event_id":"sha256:7aa4b9efb80cb69fc8234e466b4b74f07eccdd997b5f2f3ee3a3c06ce33573f6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UOZPDWVGBHDTM5DDXPP2NOXR4R/bundle.json","state_url":"https://pith.science/pith/UOZPDWVGBHDTM5DDXPP2NOXR4R/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UOZPDWVGBHDTM5DDXPP2NOXR4R/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":"2026-05-30T14:14:05Z","links":{"resolver":"https://pith.science/pith/UOZPDWVGBHDTM5DDXPP2NOXR4R","bundle":"https://pith.science/pith/UOZPDWVGBHDTM5DDXPP2NOXR4R/bundle.json","state":"https://pith.science/pith/UOZPDWVGBHDTM5DDXPP2NOXR4R/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UOZPDWVGBHDTM5DDXPP2NOXR4R/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:UOZPDWVGBHDTM5DDXPP2NOXR4R","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":"6af71e3d57c847f9623110ec214e683a58e73e519da96d4c8fa2d3b9d4bb47da","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-02-21T22:00:22Z","title_canon_sha256":"ce4938b414fbc5f66b92934e9b5278aca254df2b70e95f80dfd914b7f7262aab"},"schema_version":"1.0","source":{"id":"1902.09330","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.09330","created_at":"2026-05-17T23:52:46Z"},{"alias_kind":"arxiv_version","alias_value":"1902.09330v1","created_at":"2026-05-17T23:52:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.09330","created_at":"2026-05-17T23:52:46Z"},{"alias_kind":"pith_short_12","alias_value":"UOZPDWVGBHDT","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"UOZPDWVGBHDTM5DD","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"UOZPDWVG","created_at":"2026-05-18T12:33:30Z"}],"graph_snapshots":[{"event_id":"sha256:7aa4b9efb80cb69fc8234e466b4b74f07eccdd997b5f2f3ee3a3c06ce33573f6","target":"graph","created_at":"2026-05-17T23:52:46Z","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":"Railway transportation is one of the most popular options for Urban Massive Transportation Systems (UMTS) because of many attractive features. A robust electric power supply is essential to enable normal operation. However, the power peaks appearing at the start time of the vehicles put heavy pressure on the power grid. Reduction of the power peak is a key issue in improving urban railway transit's power efficiency. Researchers have tried to address this problem by making a delicate timetable, but this method often failed to serve the purpose because of the punctuality problem. In this work, t","authors_text":"Ning Zhou, Shiqiong Tong, Yu Chen, Zekun Yang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-02-21T22:00:22Z","title":"PReS: Power Peak Reduction by Real-time Scheduling for Urban Railway Transit"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.09330","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":"sha256:7c01a4caf92664940aacd6070e6b4d35a3f0083fa86c7b30e2184fa8ca2c82a0","target":"record","created_at":"2026-05-17T23:52:46Z","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":"6af71e3d57c847f9623110ec214e683a58e73e519da96d4c8fa2d3b9d4bb47da","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-02-21T22:00:22Z","title_canon_sha256":"ce4938b414fbc5f66b92934e9b5278aca254df2b70e95f80dfd914b7f7262aab"},"schema_version":"1.0","source":{"id":"1902.09330","kind":"arxiv","version":1}},"canonical_sha256":"a3b2f1daa609c7367463bbdfa6baf1e4779bc1dcca2475f73aa2eeb8e063f277","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a3b2f1daa609c7367463bbdfa6baf1e4779bc1dcca2475f73aa2eeb8e063f277","first_computed_at":"2026-05-17T23:52:46.039430Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:52:46.039430Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YMelTEef9OjbB5u6wlGRcdYlMjJ/dBVb/aOzTpvIND3gjSn/kzLNisiY0SRqU9CytSpNRj9T74n+C8A9telmBg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:52:46.040028Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.09330","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7c01a4caf92664940aacd6070e6b4d35a3f0083fa86c7b30e2184fa8ca2c82a0","sha256:7aa4b9efb80cb69fc8234e466b4b74f07eccdd997b5f2f3ee3a3c06ce33573f6"],"state_sha256":"6be902cc2ca68850b244784890679728db03abe4cbd1d86b41195a994b8d6db4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uATsPbdCWAuKp4Z/szao7GOKN1TCkgIYy0mJzOappuwERGyb+0TuG/D6jvjSLYARgEjRGwHC0m2xWrd6FhKQAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T14:14:05.408207Z","bundle_sha256":"fa3a727346b1b4128acda254a2a2ba3d6b1152f3046a0e1947549810d86b657c"}}