{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:PYJZFIRCUEPHRTKX3L53MOBWO3","short_pith_number":"pith:PYJZFIRC","canonical_record":{"source":{"id":"2208.11232","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2022-08-23T23:39:06Z","cross_cats_sorted":["cs.SY"],"title_canon_sha256":"47451747e53dd8d71f90760934611b59c11e02d3260061e22fe8de49bb1c5c50","abstract_canon_sha256":"915f178f5b614ed58ba2386dfa9fc917634173401a3245411212fa370afa89b0"},"schema_version":"1.0"},"canonical_sha256":"7e1392a222a11e78cd57dafbb6383676d151c93a387a3cc8d1eb641da3502aaa","source":{"kind":"arxiv","id":"2208.11232","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2208.11232","created_at":"2026-07-05T04:51:12Z"},{"alias_kind":"arxiv_version","alias_value":"2208.11232v1","created_at":"2026-07-05T04:51:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2208.11232","created_at":"2026-07-05T04:51:12Z"},{"alias_kind":"pith_short_12","alias_value":"PYJZFIRCUEPH","created_at":"2026-07-05T04:51:12Z"},{"alias_kind":"pith_short_16","alias_value":"PYJZFIRCUEPHRTKX","created_at":"2026-07-05T04:51:12Z"},{"alias_kind":"pith_short_8","alias_value":"PYJZFIRC","created_at":"2026-07-05T04:51:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:PYJZFIRCUEPHRTKX3L53MOBWO3","target":"record","payload":{"canonical_record":{"source":{"id":"2208.11232","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2022-08-23T23:39:06Z","cross_cats_sorted":["cs.SY"],"title_canon_sha256":"47451747e53dd8d71f90760934611b59c11e02d3260061e22fe8de49bb1c5c50","abstract_canon_sha256":"915f178f5b614ed58ba2386dfa9fc917634173401a3245411212fa370afa89b0"},"schema_version":"1.0"},"canonical_sha256":"7e1392a222a11e78cd57dafbb6383676d151c93a387a3cc8d1eb641da3502aaa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:51:12.820001Z","signature_b64":"pzqw8xDKI3DkDUrq2quWqfHPvf4EXgirIsQ6NaSg0E2akfntZ4d1RuIo9yOvNQGwpTzWotkKOUZkoBJxDxGrDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7e1392a222a11e78cd57dafbb6383676d151c93a387a3cc8d1eb641da3502aaa","last_reissued_at":"2026-07-05T04:51:12.819494Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:51:12.819494Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2208.11232","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":"2026-07-05T04:51:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Q6NII4OBsw89ojadwGdTzRAxVPp8geFqhOfcqj60tB+eT6OHpd0GMD8YuNy9ogohMXAC+rWwLLAxVABtZO3ECA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T22:36:57.286384Z"},"content_sha256":"ef7074c81f9ebabf60318941210629902371b1ca8a63a252c6549eefd262aca2","schema_version":"1.0","event_id":"sha256:ef7074c81f9ebabf60318941210629902371b1ca8a63a252c6549eefd262aca2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:PYJZFIRCUEPHRTKX3L53MOBWO3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Effects of Correctly Modeling Generator Step-Up Transformer Status in Geomagnetic Disturbance Studies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SY"],"primary_cat":"eess.SY","authors_text":"Jessica L. Wert, Jonathan Snodgrass, Pooria Dehghanian, Thomas J. Overbye","submitted_at":"2022-08-23T23:39:06Z","abstract_excerpt":"In order to correctly model the impacts of geomagnetically induced current (GIC) flows, the generator step-up (GSU) transformer status must be properly modeled. In power flow studies, generators are typically removed from service without disconnecting their GSU transformers since the GSU transformer status has little to no impact on the power flow result. In reality, removing a generator from service involves also removing its GSU transformer from service. This difference presents a discrepancy between simulated behavior and system observations during geomagnetic disturbance (GMD) events. This"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2208.11232","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/2208.11232/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":"2026-07-05T04:51:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mmpCZwSnqfTZm0JdCplswQPfwy5uGBs31aGE+CkeH9rpQ5jHH+9HGZepFZKrlaU8qqQAS49gqOqukGjwUTfRBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T22:36:57.286904Z"},"content_sha256":"61819bfe2c8b0ae99dfea19d205d351868f77805b2aa0f5815086b5d27468cb2","schema_version":"1.0","event_id":"sha256:61819bfe2c8b0ae99dfea19d205d351868f77805b2aa0f5815086b5d27468cb2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PYJZFIRCUEPHRTKX3L53MOBWO3/bundle.json","state_url":"https://pith.science/pith/PYJZFIRCUEPHRTKX3L53MOBWO3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PYJZFIRCUEPHRTKX3L53MOBWO3/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":"2026-08-21T22:36:57Z","links":{"resolver":"https://pith.science/pith/PYJZFIRCUEPHRTKX3L53MOBWO3","bundle":"https://pith.science/pith/PYJZFIRCUEPHRTKX3L53MOBWO3/bundle.json","state":"https://pith.science/pith/PYJZFIRCUEPHRTKX3L53MOBWO3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PYJZFIRCUEPHRTKX3L53MOBWO3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:PYJZFIRCUEPHRTKX3L53MOBWO3","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":"915f178f5b614ed58ba2386dfa9fc917634173401a3245411212fa370afa89b0","cross_cats_sorted":["cs.SY"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2022-08-23T23:39:06Z","title_canon_sha256":"47451747e53dd8d71f90760934611b59c11e02d3260061e22fe8de49bb1c5c50"},"schema_version":"1.0","source":{"id":"2208.11232","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2208.11232","created_at":"2026-07-05T04:51:12Z"},{"alias_kind":"arxiv_version","alias_value":"2208.11232v1","created_at":"2026-07-05T04:51:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2208.11232","created_at":"2026-07-05T04:51:12Z"},{"alias_kind":"pith_short_12","alias_value":"PYJZFIRCUEPH","created_at":"2026-07-05T04:51:12Z"},{"alias_kind":"pith_short_16","alias_value":"PYJZFIRCUEPHRTKX","created_at":"2026-07-05T04:51:12Z"},{"alias_kind":"pith_short_8","alias_value":"PYJZFIRC","created_at":"2026-07-05T04:51:12Z"}],"graph_snapshots":[{"event_id":"sha256:61819bfe2c8b0ae99dfea19d205d351868f77805b2aa0f5815086b5d27468cb2","target":"graph","created_at":"2026-07-05T04:51:12Z","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/2208.11232/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In order to correctly model the impacts of geomagnetically induced current (GIC) flows, the generator step-up (GSU) transformer status must be properly modeled. In power flow studies, generators are typically removed from service without disconnecting their GSU transformers since the GSU transformer status has little to no impact on the power flow result. In reality, removing a generator from service involves also removing its GSU transformer from service. This difference presents a discrepancy between simulated behavior and system observations during geomagnetic disturbance (GMD) events. This","authors_text":"Jessica L. Wert, Jonathan Snodgrass, Pooria Dehghanian, Thomas J. Overbye","cross_cats":["cs.SY"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2022-08-23T23:39:06Z","title":"The Effects of Correctly Modeling Generator Step-Up Transformer Status in Geomagnetic Disturbance Studies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2208.11232","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:ef7074c81f9ebabf60318941210629902371b1ca8a63a252c6549eefd262aca2","target":"record","created_at":"2026-07-05T04:51:12Z","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":"915f178f5b614ed58ba2386dfa9fc917634173401a3245411212fa370afa89b0","cross_cats_sorted":["cs.SY"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2022-08-23T23:39:06Z","title_canon_sha256":"47451747e53dd8d71f90760934611b59c11e02d3260061e22fe8de49bb1c5c50"},"schema_version":"1.0","source":{"id":"2208.11232","kind":"arxiv","version":1}},"canonical_sha256":"7e1392a222a11e78cd57dafbb6383676d151c93a387a3cc8d1eb641da3502aaa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7e1392a222a11e78cd57dafbb6383676d151c93a387a3cc8d1eb641da3502aaa","first_computed_at":"2026-07-05T04:51:12.819494Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:51:12.819494Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pzqw8xDKI3DkDUrq2quWqfHPvf4EXgirIsQ6NaSg0E2akfntZ4d1RuIo9yOvNQGwpTzWotkKOUZkoBJxDxGrDA==","signature_status":"signed_v1","signed_at":"2026-07-05T04:51:12.820001Z","signed_message":"canonical_sha256_bytes"},"source_id":"2208.11232","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ef7074c81f9ebabf60318941210629902371b1ca8a63a252c6549eefd262aca2","sha256:61819bfe2c8b0ae99dfea19d205d351868f77805b2aa0f5815086b5d27468cb2"],"state_sha256":"706ef73668441836894ef881c3223c47da51ee6ee5415c34673bc460330927d6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Vn4aIj5EtoG11L+WUUA9sgkv8pSmQi9WM6aO+Vl96Q5xJ0157G2P+k7X5hVWZpJc5sGC53Tea4fHSARz4YedDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T22:36:57.294011Z","bundle_sha256":"fb8bcc7a15bb639e46c7d2eee6aa92a2a326eb308bed69a406b61699ba3316a9"}}