{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:4BSGQASQV63QAIYVER6EEQUFYQ","short_pith_number":"pith:4BSGQASQ","canonical_record":{"source":{"id":"1608.00458","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-08-01T14:52:41Z","cross_cats_sorted":[],"title_canon_sha256":"9f872a265159741ee0ac1ddb9e1d21772b3db1e2e0aeb6f0d24a202842641ffb","abstract_canon_sha256":"4c65bb12a24603d07f1408df6ff38901d6aa4b8bc66903b3e6774efc57ac616e"},"schema_version":"1.0"},"canonical_sha256":"e064680250afb7002315247c424285c42402c0cf0122746dd3440aaa7eec7e41","source":{"kind":"arxiv","id":"1608.00458","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.00458","created_at":"2026-05-18T00:41:26Z"},{"alias_kind":"arxiv_version","alias_value":"1608.00458v3","created_at":"2026-05-18T00:41:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.00458","created_at":"2026-05-18T00:41:26Z"},{"alias_kind":"pith_short_12","alias_value":"4BSGQASQV63Q","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_16","alias_value":"4BSGQASQV63QAIYV","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_8","alias_value":"4BSGQASQ","created_at":"2026-05-18T12:29:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:4BSGQASQV63QAIYVER6EEQUFYQ","target":"record","payload":{"canonical_record":{"source":{"id":"1608.00458","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-08-01T14:52:41Z","cross_cats_sorted":[],"title_canon_sha256":"9f872a265159741ee0ac1ddb9e1d21772b3db1e2e0aeb6f0d24a202842641ffb","abstract_canon_sha256":"4c65bb12a24603d07f1408df6ff38901d6aa4b8bc66903b3e6774efc57ac616e"},"schema_version":"1.0"},"canonical_sha256":"e064680250afb7002315247c424285c42402c0cf0122746dd3440aaa7eec7e41","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:41:26.062010Z","signature_b64":"LAXdgtYMnzQnb06ehMj6T9nuedd1wyFcdmSkLlucgWdi3ZNzYUMylosI2YbSilBtiQEUpmeCPfnXS0hIiU+IBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e064680250afb7002315247c424285c42402c0cf0122746dd3440aaa7eec7e41","last_reissued_at":"2026-05-18T00:41:26.061344Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:41:26.061344Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1608.00458","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":"2026-05-18T00:41:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"h4RGLPTo++DtrDRMH0VNAOA8qCzrQSHkWoEp5EkdjL8VeqbbjXVnjiBE6ZAVpmgd3EwxoWzRBMbk+Rm0LjCGBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T13:07:47.209298Z"},"content_sha256":"92eee3b893aa6a9c575533434591bcc302813fad22715de92d9a59195de7b57a","schema_version":"1.0","event_id":"sha256:92eee3b893aa6a9c575533434591bcc302813fad22715de92d9a59195de7b57a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:4BSGQASQV63QAIYVER6EEQUFYQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Improving Fisher matrix forecasts for galaxy surveys: window function, bin cross-correlation, and bin redshift uncertainty","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Alberto Bailoni, Alessio Spurio Mancini, Luca Amendola","submitted_at":"2016-08-01T14:52:41Z","abstract_excerpt":"The Fisher matrix is a widely used tool to forecast the performance of future experiments and approximate the likelihood of large data sets. Most of the forecasts for cosmological parameters in galaxy clustering studies rely on the Fisher matrix approach for large-scale experiments like DES, Euclid, or SKA. Here we improve upon the standard method by taking into account three effects: the finite window function, the correlation between redshift bins, and the uncertainty on the bin redshift. The first two effects are negligible only in the limit of infinite surveys. The third effect, on the con"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.00458","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":"2026-05-18T00:41:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FYXcfyrhjxTLxGAMRM7Wsy6Et0cnBeqsvStjoWT4VlL+gn5TGNt+wqTlhl2hi9t9AD6tY/JNpwQ3EcrGpmhQCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T13:07:47.210059Z"},"content_sha256":"928aadb534062d8116eab3d21306fe9a3f6ccfdbed3bcaa59bcd93f789f839f1","schema_version":"1.0","event_id":"sha256:928aadb534062d8116eab3d21306fe9a3f6ccfdbed3bcaa59bcd93f789f839f1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4BSGQASQV63QAIYVER6EEQUFYQ/bundle.json","state_url":"https://pith.science/pith/4BSGQASQV63QAIYVER6EEQUFYQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4BSGQASQV63QAIYVER6EEQUFYQ/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":"2026-06-10T13:07:47Z","links":{"resolver":"https://pith.science/pith/4BSGQASQV63QAIYVER6EEQUFYQ","bundle":"https://pith.science/pith/4BSGQASQV63QAIYVER6EEQUFYQ/bundle.json","state":"https://pith.science/pith/4BSGQASQV63QAIYVER6EEQUFYQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4BSGQASQV63QAIYVER6EEQUFYQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:4BSGQASQV63QAIYVER6EEQUFYQ","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":"4c65bb12a24603d07f1408df6ff38901d6aa4b8bc66903b3e6774efc57ac616e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-08-01T14:52:41Z","title_canon_sha256":"9f872a265159741ee0ac1ddb9e1d21772b3db1e2e0aeb6f0d24a202842641ffb"},"schema_version":"1.0","source":{"id":"1608.00458","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.00458","created_at":"2026-05-18T00:41:26Z"},{"alias_kind":"arxiv_version","alias_value":"1608.00458v3","created_at":"2026-05-18T00:41:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.00458","created_at":"2026-05-18T00:41:26Z"},{"alias_kind":"pith_short_12","alias_value":"4BSGQASQV63Q","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_16","alias_value":"4BSGQASQV63QAIYV","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_8","alias_value":"4BSGQASQ","created_at":"2026-05-18T12:29:58Z"}],"graph_snapshots":[{"event_id":"sha256:928aadb534062d8116eab3d21306fe9a3f6ccfdbed3bcaa59bcd93f789f839f1","target":"graph","created_at":"2026-05-18T00:41:26Z","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 Fisher matrix is a widely used tool to forecast the performance of future experiments and approximate the likelihood of large data sets. Most of the forecasts for cosmological parameters in galaxy clustering studies rely on the Fisher matrix approach for large-scale experiments like DES, Euclid, or SKA. Here we improve upon the standard method by taking into account three effects: the finite window function, the correlation between redshift bins, and the uncertainty on the bin redshift. The first two effects are negligible only in the limit of infinite surveys. The third effect, on the con","authors_text":"Alberto Bailoni, Alessio Spurio Mancini, Luca Amendola","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-08-01T14:52:41Z","title":"Improving Fisher matrix forecasts for galaxy surveys: window function, bin cross-correlation, and bin redshift uncertainty"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.00458","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":"sha256:92eee3b893aa6a9c575533434591bcc302813fad22715de92d9a59195de7b57a","target":"record","created_at":"2026-05-18T00:41:26Z","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":"4c65bb12a24603d07f1408df6ff38901d6aa4b8bc66903b3e6774efc57ac616e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-08-01T14:52:41Z","title_canon_sha256":"9f872a265159741ee0ac1ddb9e1d21772b3db1e2e0aeb6f0d24a202842641ffb"},"schema_version":"1.0","source":{"id":"1608.00458","kind":"arxiv","version":3}},"canonical_sha256":"e064680250afb7002315247c424285c42402c0cf0122746dd3440aaa7eec7e41","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e064680250afb7002315247c424285c42402c0cf0122746dd3440aaa7eec7e41","first_computed_at":"2026-05-18T00:41:26.061344Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:41:26.061344Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LAXdgtYMnzQnb06ehMj6T9nuedd1wyFcdmSkLlucgWdi3ZNzYUMylosI2YbSilBtiQEUpmeCPfnXS0hIiU+IBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:41:26.062010Z","signed_message":"canonical_sha256_bytes"},"source_id":"1608.00458","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:92eee3b893aa6a9c575533434591bcc302813fad22715de92d9a59195de7b57a","sha256:928aadb534062d8116eab3d21306fe9a3f6ccfdbed3bcaa59bcd93f789f839f1"],"state_sha256":"5b28e94e62aaa8b60c48fc6985ca9fd33490bbf24ee9e00641c131ae23534b9f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cqbO0atEz1+Yb6NQ7DdEVL0C9XSDDvvWlOY/Aa+6uOkoznxycIOL3kWJ4/quJ4pQKq4oKc6INSA4NRaC27sfCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T13:07:47.213760Z","bundle_sha256":"c3e8c05b005a94071ec6721958d176e99919ce42a96c58d076d921728636ea53"}}