{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:7MTONK6VA4XOIYZOFTFKQTZI4X","short_pith_number":"pith:7MTONK6V","canonical_record":{"source":{"id":"2307.02049","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2023-07-05T06:09:25Z","cross_cats_sorted":["cs.LG","cs.SY"],"title_canon_sha256":"3d0a7dbb8129e98868f75ad9cac18495ac9b5bb4a18638520da90c94b15c4c6f","abstract_canon_sha256":"39dbe7f31f1029308a07a35a4cea4729add2cd0a47a9d289c90ea1cc8e87f458"},"schema_version":"1.0"},"canonical_sha256":"fb26e6abd5072ee4632e2ccaa84f28e5c0c53da9a4695d483e84b8c1f10e81a9","source":{"kind":"arxiv","id":"2307.02049","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.02049","created_at":"2026-07-05T06:28:04Z"},{"alias_kind":"arxiv_version","alias_value":"2307.02049v1","created_at":"2026-07-05T06:28:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.02049","created_at":"2026-07-05T06:28:04Z"},{"alias_kind":"pith_short_12","alias_value":"7MTONK6VA4XO","created_at":"2026-07-05T06:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"7MTONK6VA4XOIYZO","created_at":"2026-07-05T06:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"7MTONK6V","created_at":"2026-07-05T06:28:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:7MTONK6VA4XOIYZOFTFKQTZI4X","target":"record","payload":{"canonical_record":{"source":{"id":"2307.02049","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2023-07-05T06:09:25Z","cross_cats_sorted":["cs.LG","cs.SY"],"title_canon_sha256":"3d0a7dbb8129e98868f75ad9cac18495ac9b5bb4a18638520da90c94b15c4c6f","abstract_canon_sha256":"39dbe7f31f1029308a07a35a4cea4729add2cd0a47a9d289c90ea1cc8e87f458"},"schema_version":"1.0"},"canonical_sha256":"fb26e6abd5072ee4632e2ccaa84f28e5c0c53da9a4695d483e84b8c1f10e81a9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:28:04.395951Z","signature_b64":"Y+2SB2LSLIzhkUJPmjYV0nzEdLau8gBm/yUFMgfq3OZMcmmIcPb51EDppft1sr3DyyBf8lSb7YyCAAs3/fL3AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fb26e6abd5072ee4632e2ccaa84f28e5c0c53da9a4695d483e84b8c1f10e81a9","last_reissued_at":"2026-07-05T06:28:04.395534Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:28:04.395534Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2307.02049","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":"2026-07-05T06:28:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"56KFip6PjFi/HIaNbUn42O+naBz6symcSh4R+wL8ufc+UIGpJRJVk3Y8XeBrlFXQJQTPchm2OO59op6B12+BDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T16:42:49.615991Z"},"content_sha256":"197e6f991f2182b0b8143290485fca1549f3cce6535e009332287fe52932260a","schema_version":"1.0","event_id":"sha256:197e6f991f2182b0b8143290485fca1549f3cce6535e009332287fe52932260a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:7MTONK6VA4XOIYZOFTFKQTZI4X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Graph Neural Network-based Power Flow Model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.LG","cs.SY"],"primary_cat":"eess.SY","authors_text":"Mingjian Tuo, Tianxia Zhao, Xingpeng Li","submitted_at":"2023-07-05T06:09:25Z","abstract_excerpt":"Power flow analysis plays a crucial role in examining the electricity flow within a power system network. By performing power flow calculations, the system's steady-state variables, including voltage magnitude, phase angle at each bus, active/reactive power flow across branches, can be determined. While the widely used DC power flow model offers speed and robustness, it may yield inaccurate line flow results for certain transmission lines. This issue becomes more critical when dealing with renewable energy sources such as wind farms, which are often located far from the main grid. Obtaining pr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.02049","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2307.02049/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T06:28:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aVFbHYGEbpYMJkq/vc0nEVOvIp1OqVitw0Etl640AduixnbRytdxAipylSMU6tGMBMunwojuZ1RsDoJo4WPkDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T16:42:49.616476Z"},"content_sha256":"2d454af35685e32beac2a67bcd8844f0b26f2bd0202eff6e4efbe942686bf8ef","schema_version":"1.0","event_id":"sha256:2d454af35685e32beac2a67bcd8844f0b26f2bd0202eff6e4efbe942686bf8ef"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7MTONK6VA4XOIYZOFTFKQTZI4X/bundle.json","state_url":"https://pith.science/pith/7MTONK6VA4XOIYZOFTFKQTZI4X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7MTONK6VA4XOIYZOFTFKQTZI4X/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":"2026-08-05T16:42:49Z","links":{"resolver":"https://pith.science/pith/7MTONK6VA4XOIYZOFTFKQTZI4X","bundle":"https://pith.science/pith/7MTONK6VA4XOIYZOFTFKQTZI4X/bundle.json","state":"https://pith.science/pith/7MTONK6VA4XOIYZOFTFKQTZI4X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7MTONK6VA4XOIYZOFTFKQTZI4X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:7MTONK6VA4XOIYZOFTFKQTZI4X","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":"39dbe7f31f1029308a07a35a4cea4729add2cd0a47a9d289c90ea1cc8e87f458","cross_cats_sorted":["cs.LG","cs.SY"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2023-07-05T06:09:25Z","title_canon_sha256":"3d0a7dbb8129e98868f75ad9cac18495ac9b5bb4a18638520da90c94b15c4c6f"},"schema_version":"1.0","source":{"id":"2307.02049","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.02049","created_at":"2026-07-05T06:28:04Z"},{"alias_kind":"arxiv_version","alias_value":"2307.02049v1","created_at":"2026-07-05T06:28:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.02049","created_at":"2026-07-05T06:28:04Z"},{"alias_kind":"pith_short_12","alias_value":"7MTONK6VA4XO","created_at":"2026-07-05T06:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"7MTONK6VA4XOIYZO","created_at":"2026-07-05T06:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"7MTONK6V","created_at":"2026-07-05T06:28:04Z"}],"graph_snapshots":[{"event_id":"sha256:2d454af35685e32beac2a67bcd8844f0b26f2bd0202eff6e4efbe942686bf8ef","target":"graph","created_at":"2026-07-05T06:28:04Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2307.02049/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Power flow analysis plays a crucial role in examining the electricity flow within a power system network. By performing power flow calculations, the system's steady-state variables, including voltage magnitude, phase angle at each bus, active/reactive power flow across branches, can be determined. While the widely used DC power flow model offers speed and robustness, it may yield inaccurate line flow results for certain transmission lines. This issue becomes more critical when dealing with renewable energy sources such as wind farms, which are often located far from the main grid. Obtaining pr","authors_text":"Mingjian Tuo, Tianxia Zhao, Xingpeng Li","cross_cats":["cs.LG","cs.SY"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2023-07-05T06:09:25Z","title":"Graph Neural Network-based Power Flow Model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.02049","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":"sha256:197e6f991f2182b0b8143290485fca1549f3cce6535e009332287fe52932260a","target":"record","created_at":"2026-07-05T06:28:04Z","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":"39dbe7f31f1029308a07a35a4cea4729add2cd0a47a9d289c90ea1cc8e87f458","cross_cats_sorted":["cs.LG","cs.SY"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2023-07-05T06:09:25Z","title_canon_sha256":"3d0a7dbb8129e98868f75ad9cac18495ac9b5bb4a18638520da90c94b15c4c6f"},"schema_version":"1.0","source":{"id":"2307.02049","kind":"arxiv","version":1}},"canonical_sha256":"fb26e6abd5072ee4632e2ccaa84f28e5c0c53da9a4695d483e84b8c1f10e81a9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fb26e6abd5072ee4632e2ccaa84f28e5c0c53da9a4695d483e84b8c1f10e81a9","first_computed_at":"2026-07-05T06:28:04.395534Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:28:04.395534Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Y+2SB2LSLIzhkUJPmjYV0nzEdLau8gBm/yUFMgfq3OZMcmmIcPb51EDppft1sr3DyyBf8lSb7YyCAAs3/fL3AA==","signature_status":"signed_v1","signed_at":"2026-07-05T06:28:04.395951Z","signed_message":"canonical_sha256_bytes"},"source_id":"2307.02049","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:197e6f991f2182b0b8143290485fca1549f3cce6535e009332287fe52932260a","sha256:2d454af35685e32beac2a67bcd8844f0b26f2bd0202eff6e4efbe942686bf8ef"],"state_sha256":"da99f68e4f820ba3274b6813d20e2dcdae7ac4c94986f1d5e624635a12e180f3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B+0RZG04L32852UWY5MQQ12hztk/xLj+5xU4TWYHVf0ifbLlOJKfeiem57IhH2+hNy1VXwICOqYB9SWtJSJ8Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T16:42:49.633318Z","bundle_sha256":"2f2cb23d7e1c7238ba69bf4b14c5586f63c9f769d5a101862a4b77a0357195f6"}}