{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:V2E6PFN6EWW34G7T3XQIZQT3L6","short_pith_number":"pith:V2E6PFN6","canonical_record":{"source":{"id":"2007.14989","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-07-29T17:59:06Z","cross_cats_sorted":[],"title_canon_sha256":"ef6a108d906580acda5d11a357322fdec22b6b41e8178473b1e0d2fbb8a2dded","abstract_canon_sha256":"bbb02c94dec79f1ee4b4e850af8c2430bb2e08da7fc019f6006cc99b40cc3a6f"},"schema_version":"1.0"},"canonical_sha256":"ae89e795be25adbe1bf3dde08cc27b5fbea029c587a61f062e98760e4f894517","source":{"kind":"arxiv","id":"2007.14989","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.14989","created_at":"2026-07-05T01:50:28Z"},{"alias_kind":"arxiv_version","alias_value":"2007.14989v2","created_at":"2026-07-05T01:50:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.14989","created_at":"2026-07-05T01:50:28Z"},{"alias_kind":"pith_short_12","alias_value":"V2E6PFN6EWW3","created_at":"2026-07-05T01:50:28Z"},{"alias_kind":"pith_short_16","alias_value":"V2E6PFN6EWW34G7T","created_at":"2026-07-05T01:50:28Z"},{"alias_kind":"pith_short_8","alias_value":"V2E6PFN6","created_at":"2026-07-05T01:50:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:V2E6PFN6EWW34G7T3XQIZQT3L6","target":"record","payload":{"canonical_record":{"source":{"id":"2007.14989","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-07-29T17:59:06Z","cross_cats_sorted":[],"title_canon_sha256":"ef6a108d906580acda5d11a357322fdec22b6b41e8178473b1e0d2fbb8a2dded","abstract_canon_sha256":"bbb02c94dec79f1ee4b4e850af8c2430bb2e08da7fc019f6006cc99b40cc3a6f"},"schema_version":"1.0"},"canonical_sha256":"ae89e795be25adbe1bf3dde08cc27b5fbea029c587a61f062e98760e4f894517","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:50:28.112011Z","signature_b64":"XijnbB0KYQ822mRmfDiAMQRYHKFtvPXvegEm5tZx3t/sh/+VbmsZ5cQjzQ1xpny9RJD17FVanuHHF3WNQ9SvDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ae89e795be25adbe1bf3dde08cc27b5fbea029c587a61f062e98760e4f894517","last_reissued_at":"2026-07-05T01:50:28.111590Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:50:28.111590Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2007.14989","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":"2026-07-05T01:50:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KJLz1BvYBAks3p3I2+3zteJi5+9A5cvvan1G8aikesVyhtjlc53FAstS0TERCPUMk2Cd54f2Rs66Tqe1atE0Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T08:23:46.961822Z"},"content_sha256":"43aa0bd487b5a7fee5cf52e39752d31422e826a82f6fe0a48aa6efbaa83dc208","schema_version":"1.0","event_id":"sha256:43aa0bd487b5a7fee5cf52e39752d31422e826a82f6fe0a48aa6efbaa83dc208"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:V2E6PFN6EWW34G7T3XQIZQT3L6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Analytic marginalization of $N(z)$ uncertainties in tomographic galaxy surveys","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Andrina Nicola, An\\v{z}e Slosar, Boryana Hadzhiyska, David Alonso","submitted_at":"2020-07-29T17:59:06Z","abstract_excerpt":"We present a new method to marginalize over uncertainties in redshift distributions, $N(z)$, within tomographic cosmological analyses applicable to current and upcoming photometric galaxy surveys. We allow for arbitrary deviations from the best-guess $N(z)$ governed by a general covariance matrix describing the uncertainty in our knowledge of redshift distributions. In principle, this is marginalization over hundreds or thousands of new parameters describing potential deviations as a function of redshift and tomographic bin. However, by linearly expanding the theory predictions around a fiduci"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.14989","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2007.14989/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T01:50:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IAs3L2PH/c8hnRWdtIPb3Hvyy/oZ3p9WUnHjhaVtyfLnWiftll2x6seHFJUqnd1sgFgfMkNjvjN3npLkLhLPCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T08:23:46.972965Z"},"content_sha256":"5ca9e7ec6af2d461a327bbec4333cb1e9bb307660ea45acda1e92f19a4e8f399","schema_version":"1.0","event_id":"sha256:5ca9e7ec6af2d461a327bbec4333cb1e9bb307660ea45acda1e92f19a4e8f399"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/V2E6PFN6EWW34G7T3XQIZQT3L6/bundle.json","state_url":"https://pith.science/pith/V2E6PFN6EWW34G7T3XQIZQT3L6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/V2E6PFN6EWW34G7T3XQIZQT3L6/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":"2026-08-14T08:23:46Z","links":{"resolver":"https://pith.science/pith/V2E6PFN6EWW34G7T3XQIZQT3L6","bundle":"https://pith.science/pith/V2E6PFN6EWW34G7T3XQIZQT3L6/bundle.json","state":"https://pith.science/pith/V2E6PFN6EWW34G7T3XQIZQT3L6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/V2E6PFN6EWW34G7T3XQIZQT3L6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:V2E6PFN6EWW34G7T3XQIZQT3L6","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":"bbb02c94dec79f1ee4b4e850af8c2430bb2e08da7fc019f6006cc99b40cc3a6f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-07-29T17:59:06Z","title_canon_sha256":"ef6a108d906580acda5d11a357322fdec22b6b41e8178473b1e0d2fbb8a2dded"},"schema_version":"1.0","source":{"id":"2007.14989","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.14989","created_at":"2026-07-05T01:50:28Z"},{"alias_kind":"arxiv_version","alias_value":"2007.14989v2","created_at":"2026-07-05T01:50:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.14989","created_at":"2026-07-05T01:50:28Z"},{"alias_kind":"pith_short_12","alias_value":"V2E6PFN6EWW3","created_at":"2026-07-05T01:50:28Z"},{"alias_kind":"pith_short_16","alias_value":"V2E6PFN6EWW34G7T","created_at":"2026-07-05T01:50:28Z"},{"alias_kind":"pith_short_8","alias_value":"V2E6PFN6","created_at":"2026-07-05T01:50:28Z"}],"graph_snapshots":[{"event_id":"sha256:5ca9e7ec6af2d461a327bbec4333cb1e9bb307660ea45acda1e92f19a4e8f399","target":"graph","created_at":"2026-07-05T01:50:28Z","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":[],"endpoint":"/pith/2007.14989/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a new method to marginalize over uncertainties in redshift distributions, $N(z)$, within tomographic cosmological analyses applicable to current and upcoming photometric galaxy surveys. We allow for arbitrary deviations from the best-guess $N(z)$ governed by a general covariance matrix describing the uncertainty in our knowledge of redshift distributions. In principle, this is marginalization over hundreds or thousands of new parameters describing potential deviations as a function of redshift and tomographic bin. However, by linearly expanding the theory predictions around a fiduci","authors_text":"Andrina Nicola, An\\v{z}e Slosar, Boryana Hadzhiyska, David Alonso","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-07-29T17:59:06Z","title":"Analytic marginalization of $N(z)$ uncertainties in tomographic galaxy surveys"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.14989","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":"sha256:43aa0bd487b5a7fee5cf52e39752d31422e826a82f6fe0a48aa6efbaa83dc208","target":"record","created_at":"2026-07-05T01:50:28Z","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":"bbb02c94dec79f1ee4b4e850af8c2430bb2e08da7fc019f6006cc99b40cc3a6f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-07-29T17:59:06Z","title_canon_sha256":"ef6a108d906580acda5d11a357322fdec22b6b41e8178473b1e0d2fbb8a2dded"},"schema_version":"1.0","source":{"id":"2007.14989","kind":"arxiv","version":2}},"canonical_sha256":"ae89e795be25adbe1bf3dde08cc27b5fbea029c587a61f062e98760e4f894517","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ae89e795be25adbe1bf3dde08cc27b5fbea029c587a61f062e98760e4f894517","first_computed_at":"2026-07-05T01:50:28.111590Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:50:28.111590Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XijnbB0KYQ822mRmfDiAMQRYHKFtvPXvegEm5tZx3t/sh/+VbmsZ5cQjzQ1xpny9RJD17FVanuHHF3WNQ9SvDA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:50:28.112011Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.14989","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:43aa0bd487b5a7fee5cf52e39752d31422e826a82f6fe0a48aa6efbaa83dc208","sha256:5ca9e7ec6af2d461a327bbec4333cb1e9bb307660ea45acda1e92f19a4e8f399"],"state_sha256":"b25f9b13495d83e024ec159a9ece1073bac8acb2a4e4bb73652ca261b458b0d0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qnQ05JinHN+5zgmo7atcCWCW98F4EAzs5XMRfLD8xI3xvwnjpkcubZugKSZ/Mya87cceVnAF1seXDHEHe4EXCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T08:23:46.997619Z","bundle_sha256":"388e9600ddf8e003f2ae26db6ae21aaa5a088e85348de063f84268b0c124997a"}}