{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:M5CWSBNTNX6NI5OGWMXGBSAY5X","short_pith_number":"pith:M5CWSBNT","canonical_record":{"source":{"id":"1410.5001","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DG","submitted_at":"2014-10-18T20:23:14Z","cross_cats_sorted":["math-ph","math.MP"],"title_canon_sha256":"d84d92f52651b35d96cf540b7c58dd61ca2466d251eb1ce09ec0d7763d4ce0e8","abstract_canon_sha256":"2bccae9aec70e87d31ae1afda4ab0bae46696d11f2779da6d67bb46b95d9f72b"},"schema_version":"1.0"},"canonical_sha256":"67456905b36dfcd475c6b32e60c818edcafc711abd9c7be311642941bc93c0d3","source":{"kind":"arxiv","id":"1410.5001","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.5001","created_at":"2026-05-18T02:19:35Z"},{"alias_kind":"arxiv_version","alias_value":"1410.5001v2","created_at":"2026-05-18T02:19:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.5001","created_at":"2026-05-18T02:19:35Z"},{"alias_kind":"pith_short_12","alias_value":"M5CWSBNTNX6N","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_16","alias_value":"M5CWSBNTNX6NI5OG","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_8","alias_value":"M5CWSBNT","created_at":"2026-05-18T12:28:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:M5CWSBNTNX6NI5OGWMXGBSAY5X","target":"record","payload":{"canonical_record":{"source":{"id":"1410.5001","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DG","submitted_at":"2014-10-18T20:23:14Z","cross_cats_sorted":["math-ph","math.MP"],"title_canon_sha256":"d84d92f52651b35d96cf540b7c58dd61ca2466d251eb1ce09ec0d7763d4ce0e8","abstract_canon_sha256":"2bccae9aec70e87d31ae1afda4ab0bae46696d11f2779da6d67bb46b95d9f72b"},"schema_version":"1.0"},"canonical_sha256":"67456905b36dfcd475c6b32e60c818edcafc711abd9c7be311642941bc93c0d3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:19:35.953005Z","signature_b64":"3ywvPSV3fb216IIxSADgjMtD3Nz3qqO+nJI8PGHaUIiq5FhTA9D4rlWxWZ4BtH14ckny5HszYaJo8hJDviORAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"67456905b36dfcd475c6b32e60c818edcafc711abd9c7be311642941bc93c0d3","last_reissued_at":"2026-05-18T02:19:35.952275Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:19:35.952275Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1410.5001","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":"2026-05-18T02:19:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AQ/d52deuwFwW7Hjee+mZYBZjdu+eth2phuvSunm7hYy4917swWS5H5arEsjtP+2XD8Ttypz1Fn1VPekvVutCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-20T21:16:04.439647Z"},"content_sha256":"f9f6ba52059588a6d3ed110560d8e218f9da535abfb4ec91759dc2948ff9f724","schema_version":"1.0","event_id":"sha256:f9f6ba52059588a6d3ed110560d8e218f9da535abfb4ec91759dc2948ff9f724"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:M5CWSBNTNX6NI5OGWMXGBSAY5X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Conformally K\\\"ahler surfaces and orthogonal holomorphic bisectional curvature","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math-ph","math.MP"],"primary_cat":"math.DG","authors_text":"Caner Koca, Mustafa Kalafat","submitted_at":"2014-10-18T20:23:14Z","abstract_excerpt":"We show that a compact complex surface which admits a conformally K\\\"ahler metric g of positive orthogonal holomorphic bisectional curvature is biholomorphic to the complex projective plane. In addition, if g is a Hermitian metric which is Einstein, then the biholomorphism can be chosen to be an isometry via which g becomes a multiple of the Fubini-Study metric."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.5001","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":""},"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":"2026-05-18T02:19:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UWCcNJ7u2VVv0RvR7892NrXNheDC60vKrHKaNZtWUkA9/YmmGKMC4BN1zxfy9PkOiOr+zuPM+Pdx4OeqgdvYAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-20T21:16:04.439990Z"},"content_sha256":"212c146f45ab6b72c4c7d2d990f3c3d88102074015aff6072671c331ec35b24f","schema_version":"1.0","event_id":"sha256:212c146f45ab6b72c4c7d2d990f3c3d88102074015aff6072671c331ec35b24f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/M5CWSBNTNX6NI5OGWMXGBSAY5X/bundle.json","state_url":"https://pith.science/pith/M5CWSBNTNX6NI5OGWMXGBSAY5X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/M5CWSBNTNX6NI5OGWMXGBSAY5X/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":"2026-06-20T21:16:04Z","links":{"resolver":"https://pith.science/pith/M5CWSBNTNX6NI5OGWMXGBSAY5X","bundle":"https://pith.science/pith/M5CWSBNTNX6NI5OGWMXGBSAY5X/bundle.json","state":"https://pith.science/pith/M5CWSBNTNX6NI5OGWMXGBSAY5X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/M5CWSBNTNX6NI5OGWMXGBSAY5X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:M5CWSBNTNX6NI5OGWMXGBSAY5X","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":"2bccae9aec70e87d31ae1afda4ab0bae46696d11f2779da6d67bb46b95d9f72b","cross_cats_sorted":["math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DG","submitted_at":"2014-10-18T20:23:14Z","title_canon_sha256":"d84d92f52651b35d96cf540b7c58dd61ca2466d251eb1ce09ec0d7763d4ce0e8"},"schema_version":"1.0","source":{"id":"1410.5001","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.5001","created_at":"2026-05-18T02:19:35Z"},{"alias_kind":"arxiv_version","alias_value":"1410.5001v2","created_at":"2026-05-18T02:19:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.5001","created_at":"2026-05-18T02:19:35Z"},{"alias_kind":"pith_short_12","alias_value":"M5CWSBNTNX6N","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_16","alias_value":"M5CWSBNTNX6NI5OG","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_8","alias_value":"M5CWSBNT","created_at":"2026-05-18T12:28:38Z"}],"graph_snapshots":[{"event_id":"sha256:212c146f45ab6b72c4c7d2d990f3c3d88102074015aff6072671c331ec35b24f","target":"graph","created_at":"2026-05-18T02:19:35Z","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":"We show that a compact complex surface which admits a conformally K\\\"ahler metric g of positive orthogonal holomorphic bisectional curvature is biholomorphic to the complex projective plane. In addition, if g is a Hermitian metric which is Einstein, then the biholomorphism can be chosen to be an isometry via which g becomes a multiple of the Fubini-Study metric.","authors_text":"Caner Koca, Mustafa Kalafat","cross_cats":["math-ph","math.MP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DG","submitted_at":"2014-10-18T20:23:14Z","title":"Conformally K\\\"ahler surfaces and orthogonal holomorphic bisectional curvature"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.5001","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:f9f6ba52059588a6d3ed110560d8e218f9da535abfb4ec91759dc2948ff9f724","target":"record","created_at":"2026-05-18T02:19:35Z","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":"2bccae9aec70e87d31ae1afda4ab0bae46696d11f2779da6d67bb46b95d9f72b","cross_cats_sorted":["math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DG","submitted_at":"2014-10-18T20:23:14Z","title_canon_sha256":"d84d92f52651b35d96cf540b7c58dd61ca2466d251eb1ce09ec0d7763d4ce0e8"},"schema_version":"1.0","source":{"id":"1410.5001","kind":"arxiv","version":2}},"canonical_sha256":"67456905b36dfcd475c6b32e60c818edcafc711abd9c7be311642941bc93c0d3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"67456905b36dfcd475c6b32e60c818edcafc711abd9c7be311642941bc93c0d3","first_computed_at":"2026-05-18T02:19:35.952275Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:19:35.952275Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3ywvPSV3fb216IIxSADgjMtD3Nz3qqO+nJI8PGHaUIiq5FhTA9D4rlWxWZ4BtH14ckny5HszYaJo8hJDviORAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:19:35.953005Z","signed_message":"canonical_sha256_bytes"},"source_id":"1410.5001","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f9f6ba52059588a6d3ed110560d8e218f9da535abfb4ec91759dc2948ff9f724","sha256:212c146f45ab6b72c4c7d2d990f3c3d88102074015aff6072671c331ec35b24f"],"state_sha256":"adee22624fa39bb7538af18acbc3ce8294b0ab30965a0f3be738ea0366b7e43d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CZD9tnsMjzIwh7qkNlVnhq8fZ2+HfhO5HgtxMxg/a0mq9UlQ6wzrdfoi5uvl0J75ze5VMOYCFg7Hvh2IX0NkBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-20T21:16:04.441929Z","bundle_sha256":"8545d9777a0d6e1a1ce9bc14310e55ab7707f4abea7b6ea01f00f780d0f9f0b3"}}