{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:7BUHGKWZTDBWUWIB2DJEY7Z2L7","short_pith_number":"pith:7BUHGKWZ","canonical_record":{"source":{"id":"1601.00357","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-01-04T01:03:30Z","cross_cats_sorted":[],"title_canon_sha256":"6a463944ecda343cd07f39510950db9f10bf5324796e99bff7a364055aed25f3","abstract_canon_sha256":"275a25bc33c02df98ab499ca2f94feb7dbef4658bcc7ed78df800ac04b527764"},"schema_version":"1.0"},"canonical_sha256":"f868732ad998c36a5901d0d24c7f3a5fe4542d2c78bc88a48e310f53425a120b","source":{"kind":"arxiv","id":"1601.00357","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.00357","created_at":"2026-05-18T01:12:30Z"},{"alias_kind":"arxiv_version","alias_value":"1601.00357v2","created_at":"2026-05-18T01:12:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.00357","created_at":"2026-05-18T01:12:30Z"},{"alias_kind":"pith_short_12","alias_value":"7BUHGKWZTDBW","created_at":"2026-05-18T12:30:04Z"},{"alias_kind":"pith_short_16","alias_value":"7BUHGKWZTDBWUWIB","created_at":"2026-05-18T12:30:04Z"},{"alias_kind":"pith_short_8","alias_value":"7BUHGKWZ","created_at":"2026-05-18T12:30:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:7BUHGKWZTDBWUWIB2DJEY7Z2L7","target":"record","payload":{"canonical_record":{"source":{"id":"1601.00357","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-01-04T01:03:30Z","cross_cats_sorted":[],"title_canon_sha256":"6a463944ecda343cd07f39510950db9f10bf5324796e99bff7a364055aed25f3","abstract_canon_sha256":"275a25bc33c02df98ab499ca2f94feb7dbef4658bcc7ed78df800ac04b527764"},"schema_version":"1.0"},"canonical_sha256":"f868732ad998c36a5901d0d24c7f3a5fe4542d2c78bc88a48e310f53425a120b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:12:30.213092Z","signature_b64":"cRGobOUCBMK1l32JgugktpGZ7klNd/9hoo4lCK0GoWVw4Ay+DhncpA2wzeCJ0y1mqUpudA04Dl0fjBewvTViCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f868732ad998c36a5901d0d24c7f3a5fe4542d2c78bc88a48e310f53425a120b","last_reissued_at":"2026-05-18T01:12:30.212773Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:12:30.212773Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1601.00357","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":"2026-05-18T01:12:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4Q5Jhy4HL1ruc09QrsRTeysXQA5Dw6XigmACSSjCJVuC/hlFMxUnBSuLUScavW19bzEU07hi2UNqvKXUXPxABw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T09:40:17.313632Z"},"content_sha256":"d311806466bf8db5fa2051a35252da14f82805ea2ea35b51cdbca51a32ad4453","schema_version":"1.0","event_id":"sha256:d311806466bf8db5fa2051a35252da14f82805ea2ea35b51cdbca51a32ad4453"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:7BUHGKWZTDBWUWIB2DJEY7Z2L7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Galaxy clustering with photometric surveys using PDF redshift information","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"I. Sevilla-Noarbe, J. Asorey, J. Thaler, M. Carrasco Kind, R. J. Brunner","submitted_at":"2016-01-04T01:03:30Z","abstract_excerpt":"Photometric surveys produce large-area maps of the galaxy distribution, but with less accurate redshift information than is obtained from spectroscopic methods. Modern photometric redshift (photo-z) algorithms use galaxy magnitudes, or colors, that are obtained through multi-band imaging to produce a probability density function (PDF) for each galaxy in the map. We used simulated data to study the effect of using different photo-z estimators to assign galaxies to redshift bins in order to compare their effects on angular clustering and galaxy bias measurements. We found that if we use the enti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.00357","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":"2026-05-18T01:12:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LZWXtXWBpPM7p2tg/3K8KreVqJhMEVXE4wTt6XJBWodPuFFnwJjGE1kw0K2G5rJIqQsXIMp+tlgYLQUwg4WLCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T09:40:17.314335Z"},"content_sha256":"e76828d99d0246cca247e455fc395f772463ca40f2bf0ca2ee27dd78be8f3b4e","schema_version":"1.0","event_id":"sha256:e76828d99d0246cca247e455fc395f772463ca40f2bf0ca2ee27dd78be8f3b4e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7BUHGKWZTDBWUWIB2DJEY7Z2L7/bundle.json","state_url":"https://pith.science/pith/7BUHGKWZTDBWUWIB2DJEY7Z2L7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7BUHGKWZTDBWUWIB2DJEY7Z2L7/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":"2026-05-31T09:40:17Z","links":{"resolver":"https://pith.science/pith/7BUHGKWZTDBWUWIB2DJEY7Z2L7","bundle":"https://pith.science/pith/7BUHGKWZTDBWUWIB2DJEY7Z2L7/bundle.json","state":"https://pith.science/pith/7BUHGKWZTDBWUWIB2DJEY7Z2L7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7BUHGKWZTDBWUWIB2DJEY7Z2L7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:7BUHGKWZTDBWUWIB2DJEY7Z2L7","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":"275a25bc33c02df98ab499ca2f94feb7dbef4658bcc7ed78df800ac04b527764","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-01-04T01:03:30Z","title_canon_sha256":"6a463944ecda343cd07f39510950db9f10bf5324796e99bff7a364055aed25f3"},"schema_version":"1.0","source":{"id":"1601.00357","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.00357","created_at":"2026-05-18T01:12:30Z"},{"alias_kind":"arxiv_version","alias_value":"1601.00357v2","created_at":"2026-05-18T01:12:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.00357","created_at":"2026-05-18T01:12:30Z"},{"alias_kind":"pith_short_12","alias_value":"7BUHGKWZTDBW","created_at":"2026-05-18T12:30:04Z"},{"alias_kind":"pith_short_16","alias_value":"7BUHGKWZTDBWUWIB","created_at":"2026-05-18T12:30:04Z"},{"alias_kind":"pith_short_8","alias_value":"7BUHGKWZ","created_at":"2026-05-18T12:30:04Z"}],"graph_snapshots":[{"event_id":"sha256:e76828d99d0246cca247e455fc395f772463ca40f2bf0ca2ee27dd78be8f3b4e","target":"graph","created_at":"2026-05-18T01:12:30Z","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":"Photometric surveys produce large-area maps of the galaxy distribution, but with less accurate redshift information than is obtained from spectroscopic methods. Modern photometric redshift (photo-z) algorithms use galaxy magnitudes, or colors, that are obtained through multi-band imaging to produce a probability density function (PDF) for each galaxy in the map. We used simulated data to study the effect of using different photo-z estimators to assign galaxies to redshift bins in order to compare their effects on angular clustering and galaxy bias measurements. We found that if we use the enti","authors_text":"I. Sevilla-Noarbe, J. Asorey, J. Thaler, M. Carrasco Kind, R. J. Brunner","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-01-04T01:03:30Z","title":"Galaxy clustering with photometric surveys using PDF redshift information"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.00357","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:d311806466bf8db5fa2051a35252da14f82805ea2ea35b51cdbca51a32ad4453","target":"record","created_at":"2026-05-18T01:12:30Z","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":"275a25bc33c02df98ab499ca2f94feb7dbef4658bcc7ed78df800ac04b527764","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-01-04T01:03:30Z","title_canon_sha256":"6a463944ecda343cd07f39510950db9f10bf5324796e99bff7a364055aed25f3"},"schema_version":"1.0","source":{"id":"1601.00357","kind":"arxiv","version":2}},"canonical_sha256":"f868732ad998c36a5901d0d24c7f3a5fe4542d2c78bc88a48e310f53425a120b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f868732ad998c36a5901d0d24c7f3a5fe4542d2c78bc88a48e310f53425a120b","first_computed_at":"2026-05-18T01:12:30.212773Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:12:30.212773Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cRGobOUCBMK1l32JgugktpGZ7klNd/9hoo4lCK0GoWVw4Ay+DhncpA2wzeCJ0y1mqUpudA04Dl0fjBewvTViCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:12:30.213092Z","signed_message":"canonical_sha256_bytes"},"source_id":"1601.00357","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d311806466bf8db5fa2051a35252da14f82805ea2ea35b51cdbca51a32ad4453","sha256:e76828d99d0246cca247e455fc395f772463ca40f2bf0ca2ee27dd78be8f3b4e"],"state_sha256":"a05cf389fd672cfb7e2b08066f6db1aaae7afb0145464d658869124431a9662f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E4EplpHgyguG90u2ZIJayAsly4I5+r7UvdmbXIi8817c7C+6GY+MOUum1fZwkUNFOQMeKnR92O4W7keRLzS3BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T09:40:17.317623Z","bundle_sha256":"fe986a4d6d9a6c6b1b87a5d6cb0d4cd0a1eccd43a4c1d1d7c6975d2851716aed"}}