{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:OSBXBOCCAO44FY2UWDWXZQWIRB","short_pith_number":"pith:OSBXBOCC","canonical_record":{"source":{"id":"1809.10384","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DG","submitted_at":"2018-09-27T07:46:02Z","cross_cats_sorted":[],"title_canon_sha256":"a6736351366be7bb864c121776d4fe8354f1ce08ebc4f2ce9d9d97ff0830da75","abstract_canon_sha256":"555a8cbe0e8c422bf4661419b2e909e089ff213938dab92ff62a9db3dbe577ca"},"schema_version":"1.0"},"canonical_sha256":"748370b84203b9c2e354b0ed7cc2c88850db0073313d5d24aea4f33459668958","source":{"kind":"arxiv","id":"1809.10384","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.10384","created_at":"2026-05-18T00:04:38Z"},{"alias_kind":"arxiv_version","alias_value":"1809.10384v1","created_at":"2026-05-18T00:04:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.10384","created_at":"2026-05-18T00:04:38Z"},{"alias_kind":"pith_short_12","alias_value":"OSBXBOCCAO44","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_16","alias_value":"OSBXBOCCAO44FY2U","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_8","alias_value":"OSBXBOCC","created_at":"2026-05-18T12:32:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:OSBXBOCCAO44FY2UWDWXZQWIRB","target":"record","payload":{"canonical_record":{"source":{"id":"1809.10384","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DG","submitted_at":"2018-09-27T07:46:02Z","cross_cats_sorted":[],"title_canon_sha256":"a6736351366be7bb864c121776d4fe8354f1ce08ebc4f2ce9d9d97ff0830da75","abstract_canon_sha256":"555a8cbe0e8c422bf4661419b2e909e089ff213938dab92ff62a9db3dbe577ca"},"schema_version":"1.0"},"canonical_sha256":"748370b84203b9c2e354b0ed7cc2c88850db0073313d5d24aea4f33459668958","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:04:38.474136Z","signature_b64":"C+y4vLAkj15heHs9MMeldU/tMwiQzr424h0yyzi87hE4w2veCUCmK6QzKYDSMIradNrlQ9jSkzEOoZiA9O4IAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"748370b84203b9c2e354b0ed7cc2c88850db0073313d5d24aea4f33459668958","last_reissued_at":"2026-05-18T00:04:38.473564Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:04:38.473564Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1809.10384","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":"2026-05-18T00:04:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nnKfgINJGYTPAbN8cRyVXr97XgfF1m4qF6UOq1EaEIM80IMy8rQDCicWnsYEt22onJAJboOWHIl8Uc12GgyzDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T12:17:12.191634Z"},"content_sha256":"f1ffaaba2a7591ba922354687f4c4d0551399e47b1e043c82936f298df95c0b8","schema_version":"1.0","event_id":"sha256:f1ffaaba2a7591ba922354687f4c4d0551399e47b1e043c82936f298df95c0b8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:OSBXBOCCAO44FY2UWDWXZQWIRB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"First Chern class and birational germs of Kato surfaces","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.DG","authors_text":"Massimiliano Pontecorvo","submitted_at":"2018-09-27T07:46:02Z","abstract_excerpt":"We describe some relations between coefficients of irreducible components of the first Chern class [FP15] and birational germs introduced by Dloussky {Dl16] for intermediate Kato surfaces."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.10384","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":"2026-05-18T00:04:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LP5u1WpILFC98TnEjmgz7YdNx1MvRzej3M0sAopflYQXxek1gi4coS3BWE8IIHqcM6q3Q97nWb+BEgleJO9NDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T12:17:12.191981Z"},"content_sha256":"522087e2329fb0a319b5654702c86a0c7f34244633eeebf309afa264375525be","schema_version":"1.0","event_id":"sha256:522087e2329fb0a319b5654702c86a0c7f34244633eeebf309afa264375525be"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OSBXBOCCAO44FY2UWDWXZQWIRB/bundle.json","state_url":"https://pith.science/pith/OSBXBOCCAO44FY2UWDWXZQWIRB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OSBXBOCCAO44FY2UWDWXZQWIRB/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":"2026-07-01T12:17:12Z","links":{"resolver":"https://pith.science/pith/OSBXBOCCAO44FY2UWDWXZQWIRB","bundle":"https://pith.science/pith/OSBXBOCCAO44FY2UWDWXZQWIRB/bundle.json","state":"https://pith.science/pith/OSBXBOCCAO44FY2UWDWXZQWIRB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OSBXBOCCAO44FY2UWDWXZQWIRB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:OSBXBOCCAO44FY2UWDWXZQWIRB","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":"555a8cbe0e8c422bf4661419b2e909e089ff213938dab92ff62a9db3dbe577ca","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DG","submitted_at":"2018-09-27T07:46:02Z","title_canon_sha256":"a6736351366be7bb864c121776d4fe8354f1ce08ebc4f2ce9d9d97ff0830da75"},"schema_version":"1.0","source":{"id":"1809.10384","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.10384","created_at":"2026-05-18T00:04:38Z"},{"alias_kind":"arxiv_version","alias_value":"1809.10384v1","created_at":"2026-05-18T00:04:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.10384","created_at":"2026-05-18T00:04:38Z"},{"alias_kind":"pith_short_12","alias_value":"OSBXBOCCAO44","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_16","alias_value":"OSBXBOCCAO44FY2U","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_8","alias_value":"OSBXBOCC","created_at":"2026-05-18T12:32:43Z"}],"graph_snapshots":[{"event_id":"sha256:522087e2329fb0a319b5654702c86a0c7f34244633eeebf309afa264375525be","target":"graph","created_at":"2026-05-18T00:04:38Z","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 describe some relations between coefficients of irreducible components of the first Chern class [FP15] and birational germs introduced by Dloussky {Dl16] for intermediate Kato surfaces.","authors_text":"Massimiliano Pontecorvo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DG","submitted_at":"2018-09-27T07:46:02Z","title":"First Chern class and birational germs of Kato surfaces"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.10384","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:f1ffaaba2a7591ba922354687f4c4d0551399e47b1e043c82936f298df95c0b8","target":"record","created_at":"2026-05-18T00:04:38Z","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":"555a8cbe0e8c422bf4661419b2e909e089ff213938dab92ff62a9db3dbe577ca","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DG","submitted_at":"2018-09-27T07:46:02Z","title_canon_sha256":"a6736351366be7bb864c121776d4fe8354f1ce08ebc4f2ce9d9d97ff0830da75"},"schema_version":"1.0","source":{"id":"1809.10384","kind":"arxiv","version":1}},"canonical_sha256":"748370b84203b9c2e354b0ed7cc2c88850db0073313d5d24aea4f33459668958","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"748370b84203b9c2e354b0ed7cc2c88850db0073313d5d24aea4f33459668958","first_computed_at":"2026-05-18T00:04:38.473564Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:04:38.473564Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"C+y4vLAkj15heHs9MMeldU/tMwiQzr424h0yyzi87hE4w2veCUCmK6QzKYDSMIradNrlQ9jSkzEOoZiA9O4IAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:04:38.474136Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.10384","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f1ffaaba2a7591ba922354687f4c4d0551399e47b1e043c82936f298df95c0b8","sha256:522087e2329fb0a319b5654702c86a0c7f34244633eeebf309afa264375525be"],"state_sha256":"5e120bb64cccd2a03cdc76201eb9deaeff397248437dd349802e6ae9b4b5d949"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Aq+DTxtvQRJgD1cn0y3hfbLpgrvfxfUWaGfutvKvTS6Hmo9G3YtBDnO2FJUW/aeD1WTEWL5cditVJi7o5SkeCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-01T12:17:12.193961Z","bundle_sha256":"0590bee5b7b5d58c5b6db3ec6553dbb29b137163a66a73398e3b7fb28dff57fb"}}