{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:VQ33DGQSULCBCQ4F2EAXXXHHLZ","short_pith_number":"pith:VQ33DGQS","canonical_record":{"source":{"id":"2007.01846","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-07-03T17:54:18Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"93c9a2a096eb86a0093178367b8a11b67422e5fc4a20193f1bb89c9b1163bb2e","abstract_canon_sha256":"1d01d9cdf4d6d8690f339837e1b9614ccfd278570b6fba28768c66dfca5c463d"},"schema_version":"1.0"},"canonical_sha256":"ac37b19a12a2c4114385d1017bdce75e6c081a003b720695131995ae7bf62da6","source":{"kind":"arxiv","id":"2007.01846","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.01846","created_at":"2026-07-05T02:31:59Z"},{"alias_kind":"arxiv_version","alias_value":"2007.01846v3","created_at":"2026-07-05T02:31:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.01846","created_at":"2026-07-05T02:31:59Z"},{"alias_kind":"pith_short_12","alias_value":"VQ33DGQSULCB","created_at":"2026-07-05T02:31:59Z"},{"alias_kind":"pith_short_16","alias_value":"VQ33DGQSULCBCQ4F","created_at":"2026-07-05T02:31:59Z"},{"alias_kind":"pith_short_8","alias_value":"VQ33DGQS","created_at":"2026-07-05T02:31:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:VQ33DGQSULCBCQ4F2EAXXXHHLZ","target":"record","payload":{"canonical_record":{"source":{"id":"2007.01846","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-07-03T17:54:18Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"93c9a2a096eb86a0093178367b8a11b67422e5fc4a20193f1bb89c9b1163bb2e","abstract_canon_sha256":"1d01d9cdf4d6d8690f339837e1b9614ccfd278570b6fba28768c66dfca5c463d"},"schema_version":"1.0"},"canonical_sha256":"ac37b19a12a2c4114385d1017bdce75e6c081a003b720695131995ae7bf62da6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:31:59.639476Z","signature_b64":"KnokN0EkgRX6iIcVjHo27MMCza4U/UhEw58gxi5XdHZhcSiNF9rURT2x/wp67/qnQjtsPFL9nGIsDap9HVdhBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ac37b19a12a2c4114385d1017bdce75e6c081a003b720695131995ae7bf62da6","last_reissued_at":"2026-07-05T02:31:59.639048Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:31:59.639048Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2007.01846","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":"2026-07-05T02:31:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BQR2wrnVdSuYnjgdHNJSZ2arn3mWryujvIbvfXXTJY2lw/rX+hwT48b3aZsrOPXDPXdPdTknWfnI/9u2nKmnDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T00:00:10.435884Z"},"content_sha256":"7d0155319f8d9f1b193cf1a687bc3be43ffa3f09dd8f77bedb3900160b0ec634","schema_version":"1.0","event_id":"sha256:7d0155319f8d9f1b193cf1a687bc3be43ffa3f09dd8f77bedb3900160b0ec634"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:VQ33DGQSULCBCQ4F2EAXXXHHLZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Testing KiDS cross-correlation redshifts with simulations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.CO","authors_text":"A. H. Wright, B. Joachimi, C. Blake, C. B. Morrison, C. Heymans, E. N. Taylor, H. Hildebrandt, J. L. van den Busch, K. Kuijken, T. Erben","submitted_at":"2020-07-03T17:54:18Z","abstract_excerpt":"Measuring cosmic shear in wide-field imaging surveys requires accurate knowledge of the redshift distribution of all sources. The clustering-redshift technique exploits the angular cross-correlation of a target galaxy sample with unknown redshifts and a reference sample with known redshifts, and is an attractive alternative to colour-based methods of redshift calibration. We test the performance of such clustering redshift measurements using mock catalogues that resemble the Kilo-Degree Survey (KiDS). These mocks are created from the MICE simulation and closely mimic the properties of the KiDS"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.01846","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2007.01846/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":"2026-07-05T02:31:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7KrnX2zxCtK8AM49nTdrlFozGTSAMW9U1D5cxpYkRMYuG9hPGjo6jb39PXLSG4CyvXVJXmrdtZUNSPqHAto8DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T00:00:10.436826Z"},"content_sha256":"9af3a1d45368fc39cc1e230c7db504f845c180b76dce8e97c7f84c464deb552f","schema_version":"1.0","event_id":"sha256:9af3a1d45368fc39cc1e230c7db504f845c180b76dce8e97c7f84c464deb552f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VQ33DGQSULCBCQ4F2EAXXXHHLZ/bundle.json","state_url":"https://pith.science/pith/VQ33DGQSULCBCQ4F2EAXXXHHLZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VQ33DGQSULCBCQ4F2EAXXXHHLZ/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":"2026-08-17T00:00:10Z","links":{"resolver":"https://pith.science/pith/VQ33DGQSULCBCQ4F2EAXXXHHLZ","bundle":"https://pith.science/pith/VQ33DGQSULCBCQ4F2EAXXXHHLZ/bundle.json","state":"https://pith.science/pith/VQ33DGQSULCBCQ4F2EAXXXHHLZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VQ33DGQSULCBCQ4F2EAXXXHHLZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:VQ33DGQSULCBCQ4F2EAXXXHHLZ","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":"1d01d9cdf4d6d8690f339837e1b9614ccfd278570b6fba28768c66dfca5c463d","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-07-03T17:54:18Z","title_canon_sha256":"93c9a2a096eb86a0093178367b8a11b67422e5fc4a20193f1bb89c9b1163bb2e"},"schema_version":"1.0","source":{"id":"2007.01846","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.01846","created_at":"2026-07-05T02:31:59Z"},{"alias_kind":"arxiv_version","alias_value":"2007.01846v3","created_at":"2026-07-05T02:31:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.01846","created_at":"2026-07-05T02:31:59Z"},{"alias_kind":"pith_short_12","alias_value":"VQ33DGQSULCB","created_at":"2026-07-05T02:31:59Z"},{"alias_kind":"pith_short_16","alias_value":"VQ33DGQSULCBCQ4F","created_at":"2026-07-05T02:31:59Z"},{"alias_kind":"pith_short_8","alias_value":"VQ33DGQS","created_at":"2026-07-05T02:31:59Z"}],"graph_snapshots":[{"event_id":"sha256:9af3a1d45368fc39cc1e230c7db504f845c180b76dce8e97c7f84c464deb552f","target":"graph","created_at":"2026-07-05T02:31:59Z","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/2007.01846/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Measuring cosmic shear in wide-field imaging surveys requires accurate knowledge of the redshift distribution of all sources. The clustering-redshift technique exploits the angular cross-correlation of a target galaxy sample with unknown redshifts and a reference sample with known redshifts, and is an attractive alternative to colour-based methods of redshift calibration. We test the performance of such clustering redshift measurements using mock catalogues that resemble the Kilo-Degree Survey (KiDS). These mocks are created from the MICE simulation and closely mimic the properties of the KiDS","authors_text":"A. H. Wright, B. Joachimi, C. Blake, C. B. Morrison, C. Heymans, E. N. Taylor, H. Hildebrandt, J. L. van den Busch, K. Kuijken, T. Erben","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-07-03T17:54:18Z","title":"Testing KiDS cross-correlation redshifts with simulations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.01846","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":"sha256:7d0155319f8d9f1b193cf1a687bc3be43ffa3f09dd8f77bedb3900160b0ec634","target":"record","created_at":"2026-07-05T02:31:59Z","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":"1d01d9cdf4d6d8690f339837e1b9614ccfd278570b6fba28768c66dfca5c463d","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-07-03T17:54:18Z","title_canon_sha256":"93c9a2a096eb86a0093178367b8a11b67422e5fc4a20193f1bb89c9b1163bb2e"},"schema_version":"1.0","source":{"id":"2007.01846","kind":"arxiv","version":3}},"canonical_sha256":"ac37b19a12a2c4114385d1017bdce75e6c081a003b720695131995ae7bf62da6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ac37b19a12a2c4114385d1017bdce75e6c081a003b720695131995ae7bf62da6","first_computed_at":"2026-07-05T02:31:59.639048Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:31:59.639048Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KnokN0EkgRX6iIcVjHo27MMCza4U/UhEw58gxi5XdHZhcSiNF9rURT2x/wp67/qnQjtsPFL9nGIsDap9HVdhBw==","signature_status":"signed_v1","signed_at":"2026-07-05T02:31:59.639476Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.01846","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7d0155319f8d9f1b193cf1a687bc3be43ffa3f09dd8f77bedb3900160b0ec634","sha256:9af3a1d45368fc39cc1e230c7db504f845c180b76dce8e97c7f84c464deb552f"],"state_sha256":"e13b1bb4e6e6fc770477da2806db04e93c74bc5ba6ad6f5d0b52e186e41958f5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iv0tHyq3TuKvGJgjHBUPOEPz1hBbXuLjLWt5xfM1ba5gityUpyKGHu6FhJnYkFWo5Wa8V3fSt4ybu68N6O36CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T00:00:10.441861Z","bundle_sha256":"a00eaa37adfaa0dc203ea1b1a35a0053c4250fa9a97acdfa679a82fb4b2b47ab"}}