{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:2WEDU6ZND265W7BA77Q7BZZ3AE","short_pith_number":"pith:2WEDU6ZN","canonical_record":{"source":{"id":"2605.18245","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"math.AG","submitted_at":"2026-05-18T11:40:57Z","cross_cats_sorted":[],"title_canon_sha256":"d34cf7d12e6ccebaca49ddda4e880af03d228ffbbd83628bfc8110ef3495634b","abstract_canon_sha256":"b54a7ac4e8b40949f15cc0ea6a81ea5557774f49689b7b2819b4a9d97b61c012"},"schema_version":"1.0"},"canonical_sha256":"d5883a7b2d1ebddb7c20ffe1f0e73b0130a86f357e0fbee466e2b527a09b4d3c","source":{"kind":"arxiv","id":"2605.18245","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.18245","created_at":"2026-05-20T00:05:52Z"},{"alias_kind":"arxiv_version","alias_value":"2605.18245v1","created_at":"2026-05-20T00:05:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.18245","created_at":"2026-05-20T00:05:52Z"},{"alias_kind":"pith_short_12","alias_value":"2WEDU6ZND265","created_at":"2026-05-20T00:05:52Z"},{"alias_kind":"pith_short_16","alias_value":"2WEDU6ZND265W7BA","created_at":"2026-05-20T00:05:52Z"},{"alias_kind":"pith_short_8","alias_value":"2WEDU6ZN","created_at":"2026-05-20T00:05:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:2WEDU6ZND265W7BA77Q7BZZ3AE","target":"record","payload":{"canonical_record":{"source":{"id":"2605.18245","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"math.AG","submitted_at":"2026-05-18T11:40:57Z","cross_cats_sorted":[],"title_canon_sha256":"d34cf7d12e6ccebaca49ddda4e880af03d228ffbbd83628bfc8110ef3495634b","abstract_canon_sha256":"b54a7ac4e8b40949f15cc0ea6a81ea5557774f49689b7b2819b4a9d97b61c012"},"schema_version":"1.0"},"canonical_sha256":"d5883a7b2d1ebddb7c20ffe1f0e73b0130a86f357e0fbee466e2b527a09b4d3c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-20T00:05:52.014710Z","signature_b64":"E78idkB6/cj3f9nKIvSDNlCRKdvI4gz7Mrm3pjvL2yLAZLS/Cz35B6oHxs1YbUqGWFy/jnJdeWkwZmY/eZezDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d5883a7b2d1ebddb7c20ffe1f0e73b0130a86f357e0fbee466e2b527a09b4d3c","last_reissued_at":"2026-05-20T00:05:52.014234Z","signature_status":"signed_v1","first_computed_at":"2026-05-20T00:05:52.014234Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.18245","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":"2026-05-20T00:05:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9ErRPpQKwJsHQuj1vTjHN+qc9tKSo2YsqhPsE1PK7juWJEqfMm5Z71ZYxxNFnHEqScYnU1SAuYXe3ocZm43uCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T13:48:26.214008Z"},"content_sha256":"9ecd97488b559a5c075ea06404e778d1706d7e18ec2568a2537766775f4abd64","schema_version":"1.0","event_id":"sha256:9ecd97488b559a5c075ea06404e778d1706d7e18ec2568a2537766775f4abd64"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:2WEDU6ZND265W7BA77Q7BZZ3AE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Zero-cycles on Moduli Spaces of Twisted Sheaves and Applications to Double EPW Quartics","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"math.AG","authors_text":"Carl Mazzanti","submitted_at":"2026-05-18T11:40:57Z","abstract_excerpt":"Chen, Li, Zhang, and Zhang extended the results of Shen, Yin, and Zhao on zero-cycles on moduli spaces of stable objects on $K3$ surfaces to the twisted setting. In this work, we complement this by extending results by Vial and Martin--Vial to moduli spaces on twisted $K3$ surfaces. Exploiting the fact that double EPW quartics can be realised as moduli spaces of twisted sheaves, we show that effective zero-cycles agree if and only if they agree in the associated Verra fourfold and show that the twisted Beauville--Voisin class of Chen, Li, Zhang, and Zhang agrees with the Beauville--Voisin clas"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.18245","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/2605.18245/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"ai_meta_artifact","ran_at":"2026-05-19T23:33:35.275187Z","status":"skipped","version":"1.0.0","findings_count":0},{"name":"claim_evidence","ran_at":"2026-05-19T23:21:59.007141Z","status":"completed","version":"1.0.0","findings_count":0}],"snapshot_sha256":"dc0f461b99a12a4d90e25658d7796b7a6e1c074aa825eaaaf2160a89b52a023d"},"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":"2026-05-20T00:05:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LqDwurcsvu7KcauzogJO1c9vOT9H/hxKi6FxdItL3e1PXRaig970ohBwpXclApJrgPwhN1D9PPGGyXi5R7OYAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T13:48:26.214871Z"},"content_sha256":"a405baed6a43c1a0ac92638a72523ba22672535a1e37faa891fc1e90731b04fa","schema_version":"1.0","event_id":"sha256:a405baed6a43c1a0ac92638a72523ba22672535a1e37faa891fc1e90731b04fa"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2WEDU6ZND265W7BA77Q7BZZ3AE/bundle.json","state_url":"https://pith.science/pith/2WEDU6ZND265W7BA77Q7BZZ3AE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2WEDU6ZND265W7BA77Q7BZZ3AE/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":"2026-05-27T13:48:26Z","links":{"resolver":"https://pith.science/pith/2WEDU6ZND265W7BA77Q7BZZ3AE","bundle":"https://pith.science/pith/2WEDU6ZND265W7BA77Q7BZZ3AE/bundle.json","state":"https://pith.science/pith/2WEDU6ZND265W7BA77Q7BZZ3AE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2WEDU6ZND265W7BA77Q7BZZ3AE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:2WEDU6ZND265W7BA77Q7BZZ3AE","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":"b54a7ac4e8b40949f15cc0ea6a81ea5557774f49689b7b2819b4a9d97b61c012","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"math.AG","submitted_at":"2026-05-18T11:40:57Z","title_canon_sha256":"d34cf7d12e6ccebaca49ddda4e880af03d228ffbbd83628bfc8110ef3495634b"},"schema_version":"1.0","source":{"id":"2605.18245","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.18245","created_at":"2026-05-20T00:05:52Z"},{"alias_kind":"arxiv_version","alias_value":"2605.18245v1","created_at":"2026-05-20T00:05:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.18245","created_at":"2026-05-20T00:05:52Z"},{"alias_kind":"pith_short_12","alias_value":"2WEDU6ZND265","created_at":"2026-05-20T00:05:52Z"},{"alias_kind":"pith_short_16","alias_value":"2WEDU6ZND265W7BA","created_at":"2026-05-20T00:05:52Z"},{"alias_kind":"pith_short_8","alias_value":"2WEDU6ZN","created_at":"2026-05-20T00:05:52Z"}],"graph_snapshots":[{"event_id":"sha256:a405baed6a43c1a0ac92638a72523ba22672535a1e37faa891fc1e90731b04fa","target":"graph","created_at":"2026-05-20T00:05:52Z","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":[{"findings_count":0,"name":"ai_meta_artifact","ran_at":"2026-05-19T23:33:35.275187Z","status":"skipped","version":"1.0.0"},{"findings_count":0,"name":"claim_evidence","ran_at":"2026-05-19T23:21:59.007141Z","status":"completed","version":"1.0.0"}],"endpoint":"/pith/2605.18245/integrity.json","findings":[],"snapshot_sha256":"dc0f461b99a12a4d90e25658d7796b7a6e1c074aa825eaaaf2160a89b52a023d","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Chen, Li, Zhang, and Zhang extended the results of Shen, Yin, and Zhao on zero-cycles on moduli spaces of stable objects on $K3$ surfaces to the twisted setting. In this work, we complement this by extending results by Vial and Martin--Vial to moduli spaces on twisted $K3$ surfaces. Exploiting the fact that double EPW quartics can be realised as moduli spaces of twisted sheaves, we show that effective zero-cycles agree if and only if they agree in the associated Verra fourfold and show that the twisted Beauville--Voisin class of Chen, Li, Zhang, and Zhang agrees with the Beauville--Voisin clas","authors_text":"Carl Mazzanti","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"math.AG","submitted_at":"2026-05-18T11:40:57Z","title":"Zero-cycles on Moduli Spaces of Twisted Sheaves and Applications to Double EPW Quartics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.18245","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":"sha256:9ecd97488b559a5c075ea06404e778d1706d7e18ec2568a2537766775f4abd64","target":"record","created_at":"2026-05-20T00:05:52Z","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":"b54a7ac4e8b40949f15cc0ea6a81ea5557774f49689b7b2819b4a9d97b61c012","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"math.AG","submitted_at":"2026-05-18T11:40:57Z","title_canon_sha256":"d34cf7d12e6ccebaca49ddda4e880af03d228ffbbd83628bfc8110ef3495634b"},"schema_version":"1.0","source":{"id":"2605.18245","kind":"arxiv","version":1}},"canonical_sha256":"d5883a7b2d1ebddb7c20ffe1f0e73b0130a86f357e0fbee466e2b527a09b4d3c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d5883a7b2d1ebddb7c20ffe1f0e73b0130a86f357e0fbee466e2b527a09b4d3c","first_computed_at":"2026-05-20T00:05:52.014234Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T00:05:52.014234Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"E78idkB6/cj3f9nKIvSDNlCRKdvI4gz7Mrm3pjvL2yLAZLS/Cz35B6oHxs1YbUqGWFy/jnJdeWkwZmY/eZezDA==","signature_status":"signed_v1","signed_at":"2026-05-20T00:05:52.014710Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.18245","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9ecd97488b559a5c075ea06404e778d1706d7e18ec2568a2537766775f4abd64","sha256:a405baed6a43c1a0ac92638a72523ba22672535a1e37faa891fc1e90731b04fa"],"state_sha256":"514952512b861f6ec38f5ab69abfcad111afff36e469f889418d1a207ac2a66a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5ZW806kbmwfeX/bEVhnGq1qKalEixFmf3rbiiZ6lp6Zwyn3CQNXMywuIQpSozctcvPABqHPjgCYK+R+D3UkCCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T13:48:26.219576Z","bundle_sha256":"4b62c88de1e451b6bff4a68d5d764cd10f46248f1b465503f7eaea7d55415806"}}