{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:W2O7BHGMUB3HVCLHZRIHVPPW5T","short_pith_number":"pith:W2O7BHGM","canonical_record":{"source":{"id":"1403.5187","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AG","submitted_at":"2014-03-20T16:08:40Z","cross_cats_sorted":["math.NT"],"title_canon_sha256":"dd2d95962a9730916b1e3b55b57e872aa828a831bde7b8981af602defa69c9e5","abstract_canon_sha256":"e2b5718d5c598cb70b2c2f6e6b6310b2c1f1a0c262d3ff148ca3db260e15a192"},"schema_version":"1.0"},"canonical_sha256":"b69df09ccca0767a8967cc507abdf6ecf8a6973d2656f7c6311a137d57a890b8","source":{"kind":"arxiv","id":"1403.5187","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.5187","created_at":"2026-05-18T00:50:52Z"},{"alias_kind":"arxiv_version","alias_value":"1403.5187v2","created_at":"2026-05-18T00:50:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.5187","created_at":"2026-05-18T00:50:52Z"},{"alias_kind":"pith_short_12","alias_value":"W2O7BHGMUB3H","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"W2O7BHGMUB3HVCLH","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"W2O7BHGM","created_at":"2026-05-18T12:28:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:W2O7BHGMUB3HVCLHZRIHVPPW5T","target":"record","payload":{"canonical_record":{"source":{"id":"1403.5187","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AG","submitted_at":"2014-03-20T16:08:40Z","cross_cats_sorted":["math.NT"],"title_canon_sha256":"dd2d95962a9730916b1e3b55b57e872aa828a831bde7b8981af602defa69c9e5","abstract_canon_sha256":"e2b5718d5c598cb70b2c2f6e6b6310b2c1f1a0c262d3ff148ca3db260e15a192"},"schema_version":"1.0"},"canonical_sha256":"b69df09ccca0767a8967cc507abdf6ecf8a6973d2656f7c6311a137d57a890b8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:50:52.630229Z","signature_b64":"td+lLdWTXk1u+9XKDpEfLo3vJmDznqnmfBBTcdlo2lfVLVXli6i8qql7FyGgyvfJgatxb6hpdVi8Pykkzi+pAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b69df09ccca0767a8967cc507abdf6ecf8a6973d2656f7c6311a137d57a890b8","last_reissued_at":"2026-05-18T00:50:52.629752Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:50:52.629752Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1403.5187","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":"2026-05-18T00:50:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zYburvZ6G4+8UkK9HQcEtjivjgnsCPBlt95DopJZbd/lNXmM5FXcLDy3+bmiAG8W2Qqi6HG7F/VFuHXxyxcODQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T13:35:18.866563Z"},"content_sha256":"b9293db47c3601adb08eb8b2a2dcbbf365af9530a66745e7e70cf50dcb45b439","schema_version":"1.0","event_id":"sha256:b9293db47c3601adb08eb8b2a2dcbbf365af9530a66745e7e70cf50dcb45b439"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:W2O7BHGMUB3HVCLHZRIHVPPW5T","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Degeneration of Hodge structures over Picard modular surfaces","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.NT"],"primary_cat":"math.AG","authors_text":"Giuseppe Ancona","submitted_at":"2014-03-20T16:08:40Z","abstract_excerpt":"We study variations of Hodge structures over a Picard modular surface, and compute the weights and types of their degenerations through the cusps of the Baily-Borel compactification. The main tool is a theorem of Burgos and Wildeshaus."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.5187","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":"2026-05-18T00:50:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AyUOqw7x3QFmf3PTd/vrYfCxpLG/FgAqmafXM+zOP/3UGJq8I0LZYX1Ztqmmm7HSoUwYpVIPdb3LlfNS/T87AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T13:35:18.866889Z"},"content_sha256":"16f3d46ddc4daef656a4eae26e3452dac1a07f6d5bc9eeaeb67c5842eb95c52c","schema_version":"1.0","event_id":"sha256:16f3d46ddc4daef656a4eae26e3452dac1a07f6d5bc9eeaeb67c5842eb95c52c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/W2O7BHGMUB3HVCLHZRIHVPPW5T/bundle.json","state_url":"https://pith.science/pith/W2O7BHGMUB3HVCLHZRIHVPPW5T/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/W2O7BHGMUB3HVCLHZRIHVPPW5T/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":"2026-06-26T13:35:18Z","links":{"resolver":"https://pith.science/pith/W2O7BHGMUB3HVCLHZRIHVPPW5T","bundle":"https://pith.science/pith/W2O7BHGMUB3HVCLHZRIHVPPW5T/bundle.json","state":"https://pith.science/pith/W2O7BHGMUB3HVCLHZRIHVPPW5T/state.json","well_known_bundle":"https://pith.science/.well-known/pith/W2O7BHGMUB3HVCLHZRIHVPPW5T/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:W2O7BHGMUB3HVCLHZRIHVPPW5T","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":"e2b5718d5c598cb70b2c2f6e6b6310b2c1f1a0c262d3ff148ca3db260e15a192","cross_cats_sorted":["math.NT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AG","submitted_at":"2014-03-20T16:08:40Z","title_canon_sha256":"dd2d95962a9730916b1e3b55b57e872aa828a831bde7b8981af602defa69c9e5"},"schema_version":"1.0","source":{"id":"1403.5187","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.5187","created_at":"2026-05-18T00:50:52Z"},{"alias_kind":"arxiv_version","alias_value":"1403.5187v2","created_at":"2026-05-18T00:50:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.5187","created_at":"2026-05-18T00:50:52Z"},{"alias_kind":"pith_short_12","alias_value":"W2O7BHGMUB3H","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"W2O7BHGMUB3HVCLH","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"W2O7BHGM","created_at":"2026-05-18T12:28:54Z"}],"graph_snapshots":[{"event_id":"sha256:16f3d46ddc4daef656a4eae26e3452dac1a07f6d5bc9eeaeb67c5842eb95c52c","target":"graph","created_at":"2026-05-18T00:50:52Z","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"},"paper":{"abstract_excerpt":"We study variations of Hodge structures over a Picard modular surface, and compute the weights and types of their degenerations through the cusps of the Baily-Borel compactification. The main tool is a theorem of Burgos and Wildeshaus.","authors_text":"Giuseppe Ancona","cross_cats":["math.NT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AG","submitted_at":"2014-03-20T16:08:40Z","title":"Degeneration of Hodge structures over Picard modular surfaces"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.5187","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:b9293db47c3601adb08eb8b2a2dcbbf365af9530a66745e7e70cf50dcb45b439","target":"record","created_at":"2026-05-18T00:50:52Z","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":"e2b5718d5c598cb70b2c2f6e6b6310b2c1f1a0c262d3ff148ca3db260e15a192","cross_cats_sorted":["math.NT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AG","submitted_at":"2014-03-20T16:08:40Z","title_canon_sha256":"dd2d95962a9730916b1e3b55b57e872aa828a831bde7b8981af602defa69c9e5"},"schema_version":"1.0","source":{"id":"1403.5187","kind":"arxiv","version":2}},"canonical_sha256":"b69df09ccca0767a8967cc507abdf6ecf8a6973d2656f7c6311a137d57a890b8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b69df09ccca0767a8967cc507abdf6ecf8a6973d2656f7c6311a137d57a890b8","first_computed_at":"2026-05-18T00:50:52.629752Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:50:52.629752Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"td+lLdWTXk1u+9XKDpEfLo3vJmDznqnmfBBTcdlo2lfVLVXli6i8qql7FyGgyvfJgatxb6hpdVi8Pykkzi+pAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:50:52.630229Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.5187","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b9293db47c3601adb08eb8b2a2dcbbf365af9530a66745e7e70cf50dcb45b439","sha256:16f3d46ddc4daef656a4eae26e3452dac1a07f6d5bc9eeaeb67c5842eb95c52c"],"state_sha256":"5983137299dde601b3a581199d047d6a37471dc3f8ff8179d8dbb83e0aada42f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ArVY8GTiJIx/DYQFLm1Nv0bD9nPj2ic16aAoT0UDB6PCS43nrTj88oCstFyHTmnYpMPycH0NvrWWZTY0wrkrAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-26T13:35:18.868775Z","bundle_sha256":"b7bb3d307de31aadbcb8515c1477ed385a733eb7250e8e8c62dfc9369dc216bf"}}