{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:CUHCC6X64AP7AJUDJ7JLC7VKTL","short_pith_number":"pith:CUHCC6X6","canonical_record":{"source":{"id":"1708.02919","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AG","submitted_at":"2017-08-09T17:24:39Z","cross_cats_sorted":[],"title_canon_sha256":"275764cb30cd7d8e48b72a6319f0e6ea3cf1cbbadd70737d0de6fed9b152c00a","abstract_canon_sha256":"0908bb042f0991c493864e7ae0c5687911b76a03299ea65b87971e84a94df5ad"},"schema_version":"1.0"},"canonical_sha256":"150e217afee01ff026834fd2b17eaa9ac5f663b56de51aa735c744376c099b3e","source":{"kind":"arxiv","id":"1708.02919","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.02919","created_at":"2026-05-18T00:03:56Z"},{"alias_kind":"arxiv_version","alias_value":"1708.02919v3","created_at":"2026-05-18T00:03:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.02919","created_at":"2026-05-18T00:03:56Z"},{"alias_kind":"pith_short_12","alias_value":"CUHCC6X64AP7","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"CUHCC6X64AP7AJUD","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"CUHCC6X6","created_at":"2026-05-18T12:31:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:CUHCC6X64AP7AJUDJ7JLC7VKTL","target":"record","payload":{"canonical_record":{"source":{"id":"1708.02919","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AG","submitted_at":"2017-08-09T17:24:39Z","cross_cats_sorted":[],"title_canon_sha256":"275764cb30cd7d8e48b72a6319f0e6ea3cf1cbbadd70737d0de6fed9b152c00a","abstract_canon_sha256":"0908bb042f0991c493864e7ae0c5687911b76a03299ea65b87971e84a94df5ad"},"schema_version":"1.0"},"canonical_sha256":"150e217afee01ff026834fd2b17eaa9ac5f663b56de51aa735c744376c099b3e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:03:56.914528Z","signature_b64":"oSV54VQZsIBDkN5rlhFdBxL1aHCMCIjIP8J3uDw0LxkWPr6u1zWztGKNqiE0S32l3UPh2syL5qQgyFHl/7nVAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"150e217afee01ff026834fd2b17eaa9ac5f663b56de51aa735c744376c099b3e","last_reissued_at":"2026-05-18T00:03:56.913884Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:03:56.913884Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1708.02919","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:03:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MRcgHhuU9LlnM944kNwKjsqdoDiaNn6jEuYIXO1iMauN+nO/S317TRG47bkrWbkSylJYJmD83xk7zHx+8TTYBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T12:21:02.888399Z"},"content_sha256":"bf10207e62ea246c8c5c89bfcfb611f20efda7a77032349a9d3a5d349409c297","schema_version":"1.0","event_id":"sha256:bf10207e62ea246c8c5c89bfcfb611f20efda7a77032349a9d3a5d349409c297"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:CUHCC6X64AP7AJUDJ7JLC7VKTL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The generalized Franchetta conjecture for some hyper-K\\\"ahler varieties","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.AG","authors_text":"Charles Vial, Lie Fu, Mingmin Shen, Robert Laterveer","submitted_at":"2017-08-09T17:24:39Z","abstract_excerpt":"The generalized Franchetta conjecture for hyper-K\\\"ahler varieties predicts that an algebraic cycle on the universal family of certain polarized hyper-K\\\"ahler varieties is fiberwise rationally equivalent to zero if and only if it vanishes in cohomology fiberwise. We establish Franchetta-type results for certain low (Hilbert) powers of low degree K3 surfaces, for the Beauville--Donagi family of Fano varieties of lines on cubic fourfolds and its relative square, and for $0$-cycles and codimension-$2$ cycles for the Lehn--Lehn--Sorger--van Straten family of hyper-K\\\"ahler eightfolds. We also dra"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.02919","kind":"arxiv","version":3},"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":"2026-05-18T00:03:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hgCRcAFZG2ODgRUoRZuP8y60PPJt/0WxxlKw9Ye8nJRsMUaTKUMeXGOS9NQJXaGjdmzr+a26yIg05eOnWd3DAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T12:21:02.889114Z"},"content_sha256":"13b1584cbfb9ef90bafe82893447e015d10343810ebfaf109880eb813607c3d6","schema_version":"1.0","event_id":"sha256:13b1584cbfb9ef90bafe82893447e015d10343810ebfaf109880eb813607c3d6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CUHCC6X64AP7AJUDJ7JLC7VKTL/bundle.json","state_url":"https://pith.science/pith/CUHCC6X64AP7AJUDJ7JLC7VKTL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CUHCC6X64AP7AJUDJ7JLC7VKTL/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":"2026-06-06T12:21:02Z","links":{"resolver":"https://pith.science/pith/CUHCC6X64AP7AJUDJ7JLC7VKTL","bundle":"https://pith.science/pith/CUHCC6X64AP7AJUDJ7JLC7VKTL/bundle.json","state":"https://pith.science/pith/CUHCC6X64AP7AJUDJ7JLC7VKTL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CUHCC6X64AP7AJUDJ7JLC7VKTL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:CUHCC6X64AP7AJUDJ7JLC7VKTL","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":"0908bb042f0991c493864e7ae0c5687911b76a03299ea65b87971e84a94df5ad","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AG","submitted_at":"2017-08-09T17:24:39Z","title_canon_sha256":"275764cb30cd7d8e48b72a6319f0e6ea3cf1cbbadd70737d0de6fed9b152c00a"},"schema_version":"1.0","source":{"id":"1708.02919","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.02919","created_at":"2026-05-18T00:03:56Z"},{"alias_kind":"arxiv_version","alias_value":"1708.02919v3","created_at":"2026-05-18T00:03:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.02919","created_at":"2026-05-18T00:03:56Z"},{"alias_kind":"pith_short_12","alias_value":"CUHCC6X64AP7","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"CUHCC6X64AP7AJUD","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"CUHCC6X6","created_at":"2026-05-18T12:31:10Z"}],"graph_snapshots":[{"event_id":"sha256:13b1584cbfb9ef90bafe82893447e015d10343810ebfaf109880eb813607c3d6","target":"graph","created_at":"2026-05-18T00:03:56Z","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":"The generalized Franchetta conjecture for hyper-K\\\"ahler varieties predicts that an algebraic cycle on the universal family of certain polarized hyper-K\\\"ahler varieties is fiberwise rationally equivalent to zero if and only if it vanishes in cohomology fiberwise. We establish Franchetta-type results for certain low (Hilbert) powers of low degree K3 surfaces, for the Beauville--Donagi family of Fano varieties of lines on cubic fourfolds and its relative square, and for $0$-cycles and codimension-$2$ cycles for the Lehn--Lehn--Sorger--van Straten family of hyper-K\\\"ahler eightfolds. We also dra","authors_text":"Charles Vial, Lie Fu, Mingmin Shen, Robert Laterveer","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AG","submitted_at":"2017-08-09T17:24:39Z","title":"The generalized Franchetta conjecture for some hyper-K\\\"ahler varieties"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.02919","kind":"arxiv","version":3},"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:bf10207e62ea246c8c5c89bfcfb611f20efda7a77032349a9d3a5d349409c297","target":"record","created_at":"2026-05-18T00:03:56Z","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":"0908bb042f0991c493864e7ae0c5687911b76a03299ea65b87971e84a94df5ad","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AG","submitted_at":"2017-08-09T17:24:39Z","title_canon_sha256":"275764cb30cd7d8e48b72a6319f0e6ea3cf1cbbadd70737d0de6fed9b152c00a"},"schema_version":"1.0","source":{"id":"1708.02919","kind":"arxiv","version":3}},"canonical_sha256":"150e217afee01ff026834fd2b17eaa9ac5f663b56de51aa735c744376c099b3e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"150e217afee01ff026834fd2b17eaa9ac5f663b56de51aa735c744376c099b3e","first_computed_at":"2026-05-18T00:03:56.913884Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:03:56.913884Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oSV54VQZsIBDkN5rlhFdBxL1aHCMCIjIP8J3uDw0LxkWPr6u1zWztGKNqiE0S32l3UPh2syL5qQgyFHl/7nVAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:03:56.914528Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.02919","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bf10207e62ea246c8c5c89bfcfb611f20efda7a77032349a9d3a5d349409c297","sha256:13b1584cbfb9ef90bafe82893447e015d10343810ebfaf109880eb813607c3d6"],"state_sha256":"b64a9efcaa2522eb4807d4d194230682955b0515beaa08fa42c4265300df4a99"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F97z/Qi6i85Vdvdj/TeyOnc3ydB0eC0BQlkKHV32/8WG557jDCoEfN2wMCWD2VgLA2FmzP5J128cRXnRUlKVDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T12:21:02.892818Z","bundle_sha256":"fbe174f2479f9e1f6362a07799b97b54e58611191561187b8f23f0ea203a1248"}}