{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:V5INMR3VJA6WHZ2H7YOTTKQISE","short_pith_number":"pith:V5INMR3V","canonical_record":{"source":{"id":"2606.15083","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-06-13T03:30:50Z","cross_cats_sorted":["cs.SY","eess.SY"],"title_canon_sha256":"195890815012c9ddc047efcafb824609aa75e5f8eef23429099556528444d452","abstract_canon_sha256":"efa67705a7ba115cc23878bad80acbf1a5870cdc7f60413a3a910fc306531923"},"schema_version":"1.0"},"canonical_sha256":"af50d64775483d63e747fe1d39aa08912b29695ecadda1f15a3190b60e72fc63","source":{"kind":"arxiv","id":"2606.15083","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.15083","created_at":"2026-06-30T01:17:41Z"},{"alias_kind":"arxiv_version","alias_value":"2606.15083v2","created_at":"2026-06-30T01:17:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.15083","created_at":"2026-06-30T01:17:41Z"},{"alias_kind":"pith_short_12","alias_value":"V5INMR3VJA6W","created_at":"2026-06-30T01:17:41Z"},{"alias_kind":"pith_short_16","alias_value":"V5INMR3VJA6WHZ2H","created_at":"2026-06-30T01:17:41Z"},{"alias_kind":"pith_short_8","alias_value":"V5INMR3V","created_at":"2026-06-30T01:17:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:V5INMR3VJA6WHZ2H7YOTTKQISE","target":"record","payload":{"canonical_record":{"source":{"id":"2606.15083","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-06-13T03:30:50Z","cross_cats_sorted":["cs.SY","eess.SY"],"title_canon_sha256":"195890815012c9ddc047efcafb824609aa75e5f8eef23429099556528444d452","abstract_canon_sha256":"efa67705a7ba115cc23878bad80acbf1a5870cdc7f60413a3a910fc306531923"},"schema_version":"1.0"},"canonical_sha256":"af50d64775483d63e747fe1d39aa08912b29695ecadda1f15a3190b60e72fc63","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-30T01:17:41.787624Z","signature_b64":"1J5XEPdQSgEXsx66sy8OOVRNp/IHsxcClsJWHiOhZX+oEnA/lhVk2Ul48tNHXsTb8i3hdAyZ0uEX3d+QqkLMCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"af50d64775483d63e747fe1d39aa08912b29695ecadda1f15a3190b60e72fc63","last_reissued_at":"2026-06-30T01:17:41.786725Z","signature_status":"signed_v1","first_computed_at":"2026-06-30T01:17:41.786725Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.15083","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-30T01:17:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dFnrvw2WtZcs5RGSHNOq6h4jDhZTOP8IK/M4jgA8AB8AmUWyr7Jl1bf70kHhjC+RMnxEc8QZOJoXhus+FS67Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-03T18:30:57.873131Z"},"content_sha256":"6e33a3e5e2d555bf72426030997c291d821749694b73ca492a53bc8ae3f32507","schema_version":"1.0","event_id":"sha256:6e33a3e5e2d555bf72426030997c291d821749694b73ca492a53bc8ae3f32507"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:V5INMR3VJA6WHZ2H7YOTTKQISE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"REGRID-QAOA: A Resource-Efficient Hybrid QAOA Framework for Physics-Constrained Power System Islanding","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SY","eess.SY"],"primary_cat":"quant-ph","authors_text":"Ganesh Kumar Venayagamoorthy, Qiang Guan, Yan Li, Yuqi Jiang, Yuqi Zhang, Zhiding Liang","submitted_at":"2026-06-13T03:30:50Z","abstract_excerpt":"Quantum computing has rapidly emerged as a powerful paradigm for tackling computationally demanding problems. In particular, quantum optimization shows strong promise for hard combinatorial problems in power systems, where increasing distributed energy penetration heightens the need for intentional islanding to maintain grid reliability and resilience. However, power system islanding is an NP-hard combinatorial optimization problem that becomes computationally prohibitive for classical solvers as network size grows, motivating the use of quantum computing as a promising alternative pipeline. T"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.15083","kind":"arxiv","version":2},"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/2606.15083/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":"2026-06-30T01:17:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fr/sTi5gwgqFsvAqW0gU2wNO7ER4b/P137XPnF6+xnUnlO6ziUos6ls+mODu7Q3YgMRuXSFi6XgtFAKB7z5YDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-03T18:30:57.873519Z"},"content_sha256":"2919b31160bbb1b4c79bc4ce894d009e37dfa2dac3d60515ad83ff0c0ee6820d","schema_version":"1.0","event_id":"sha256:2919b31160bbb1b4c79bc4ce894d009e37dfa2dac3d60515ad83ff0c0ee6820d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/V5INMR3VJA6WHZ2H7YOTTKQISE/bundle.json","state_url":"https://pith.science/pith/V5INMR3VJA6WHZ2H7YOTTKQISE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/V5INMR3VJA6WHZ2H7YOTTKQISE/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":"2026-07-03T18:30:57Z","links":{"resolver":"https://pith.science/pith/V5INMR3VJA6WHZ2H7YOTTKQISE","bundle":"https://pith.science/pith/V5INMR3VJA6WHZ2H7YOTTKQISE/bundle.json","state":"https://pith.science/pith/V5INMR3VJA6WHZ2H7YOTTKQISE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/V5INMR3VJA6WHZ2H7YOTTKQISE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:V5INMR3VJA6WHZ2H7YOTTKQISE","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":"efa67705a7ba115cc23878bad80acbf1a5870cdc7f60413a3a910fc306531923","cross_cats_sorted":["cs.SY","eess.SY"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-06-13T03:30:50Z","title_canon_sha256":"195890815012c9ddc047efcafb824609aa75e5f8eef23429099556528444d452"},"schema_version":"1.0","source":{"id":"2606.15083","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.15083","created_at":"2026-06-30T01:17:41Z"},{"alias_kind":"arxiv_version","alias_value":"2606.15083v2","created_at":"2026-06-30T01:17:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.15083","created_at":"2026-06-30T01:17:41Z"},{"alias_kind":"pith_short_12","alias_value":"V5INMR3VJA6W","created_at":"2026-06-30T01:17:41Z"},{"alias_kind":"pith_short_16","alias_value":"V5INMR3VJA6WHZ2H","created_at":"2026-06-30T01:17:41Z"},{"alias_kind":"pith_short_8","alias_value":"V5INMR3V","created_at":"2026-06-30T01:17:41Z"}],"graph_snapshots":[{"event_id":"sha256:2919b31160bbb1b4c79bc4ce894d009e37dfa2dac3d60515ad83ff0c0ee6820d","target":"graph","created_at":"2026-06-30T01:17:41Z","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/2606.15083/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Quantum computing has rapidly emerged as a powerful paradigm for tackling computationally demanding problems. In particular, quantum optimization shows strong promise for hard combinatorial problems in power systems, where increasing distributed energy penetration heightens the need for intentional islanding to maintain grid reliability and resilience. However, power system islanding is an NP-hard combinatorial optimization problem that becomes computationally prohibitive for classical solvers as network size grows, motivating the use of quantum computing as a promising alternative pipeline. T","authors_text":"Ganesh Kumar Venayagamoorthy, Qiang Guan, Yan Li, Yuqi Jiang, Yuqi Zhang, Zhiding Liang","cross_cats":["cs.SY","eess.SY"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-06-13T03:30:50Z","title":"REGRID-QAOA: A Resource-Efficient Hybrid QAOA Framework for Physics-Constrained Power System Islanding"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.15083","kind":"arxiv","version":2},"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":"sha256:6e33a3e5e2d555bf72426030997c291d821749694b73ca492a53bc8ae3f32507","target":"record","created_at":"2026-06-30T01:17:41Z","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":"efa67705a7ba115cc23878bad80acbf1a5870cdc7f60413a3a910fc306531923","cross_cats_sorted":["cs.SY","eess.SY"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-06-13T03:30:50Z","title_canon_sha256":"195890815012c9ddc047efcafb824609aa75e5f8eef23429099556528444d452"},"schema_version":"1.0","source":{"id":"2606.15083","kind":"arxiv","version":2}},"canonical_sha256":"af50d64775483d63e747fe1d39aa08912b29695ecadda1f15a3190b60e72fc63","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"af50d64775483d63e747fe1d39aa08912b29695ecadda1f15a3190b60e72fc63","first_computed_at":"2026-06-30T01:17:41.786725Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-30T01:17:41.786725Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1J5XEPdQSgEXsx66sy8OOVRNp/IHsxcClsJWHiOhZX+oEnA/lhVk2Ul48tNHXsTb8i3hdAyZ0uEX3d+QqkLMCw==","signature_status":"signed_v1","signed_at":"2026-06-30T01:17:41.787624Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.15083","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6e33a3e5e2d555bf72426030997c291d821749694b73ca492a53bc8ae3f32507","sha256:2919b31160bbb1b4c79bc4ce894d009e37dfa2dac3d60515ad83ff0c0ee6820d"],"state_sha256":"92fb692e47cad755b0d0652b89e34b825e7378c3c6bf01eaeb8b9fbfa45f9825"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4ortWdLfpCaA+OHWqYn8MGd1XlvFgYQHP+jh9zpPX7JWCY04i7RKH8+MN/L9unJHIqwp7d4S/1PBp7JiA59NCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-03T18:30:57.875474Z","bundle_sha256":"104ea73dca00e6f67a782c2b0b4867abfb000357d307923646bf8faed1335e3a"}}