{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:EO3RMBMSS5PLYM752C3PQJZZOA","short_pith_number":"pith:EO3RMBMS","canonical_record":{"source":{"id":"2007.08992","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-07-17T14:09:49Z","cross_cats_sorted":[],"title_canon_sha256":"d72d6876ce4ba5b259fe6b6f1e837dc12660d5ab90927e4799c184911014fa4c","abstract_canon_sha256":"7b46c84d4f8c3f429c499b81cc94acfb6494a51a87694d2d3a27dc3b1cf3dc9b"},"schema_version":"1.0"},"canonical_sha256":"23b7160592975ebc33fdd0b6f82739700cf5efca1ed943976a24a91ec62eaf15","source":{"kind":"arxiv","id":"2007.08992","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.08992","created_at":"2026-07-05T01:39:03Z"},{"alias_kind":"arxiv_version","alias_value":"2007.08992v1","created_at":"2026-07-05T01:39:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.08992","created_at":"2026-07-05T01:39:03Z"},{"alias_kind":"pith_short_12","alias_value":"EO3RMBMSS5PL","created_at":"2026-07-05T01:39:03Z"},{"alias_kind":"pith_short_16","alias_value":"EO3RMBMSS5PLYM75","created_at":"2026-07-05T01:39:03Z"},{"alias_kind":"pith_short_8","alias_value":"EO3RMBMS","created_at":"2026-07-05T01:39:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:EO3RMBMSS5PLYM752C3PQJZZOA","target":"record","payload":{"canonical_record":{"source":{"id":"2007.08992","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-07-17T14:09:49Z","cross_cats_sorted":[],"title_canon_sha256":"d72d6876ce4ba5b259fe6b6f1e837dc12660d5ab90927e4799c184911014fa4c","abstract_canon_sha256":"7b46c84d4f8c3f429c499b81cc94acfb6494a51a87694d2d3a27dc3b1cf3dc9b"},"schema_version":"1.0"},"canonical_sha256":"23b7160592975ebc33fdd0b6f82739700cf5efca1ed943976a24a91ec62eaf15","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:39:03.530835Z","signature_b64":"JxqMPITgBTN525Kya4Axi76XJkVqoITFOam1gKnUpdpws2U4KWiwbRtTPCkTv9P1UDuFMhnG9JY/K0UIFi7NCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"23b7160592975ebc33fdd0b6f82739700cf5efca1ed943976a24a91ec62eaf15","last_reissued_at":"2026-07-05T01:39:03.530353Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:39:03.530353Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2007.08992","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:39:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AXpiNikSIpRggG5SAQbtD1abGG2R20alZ49gqqksE3oMV0fYWcmQCYw+k1/A8oZfJCYit5xmH7xR/0lCLSWFCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-19T23:56:54.534121Z"},"content_sha256":"164b4dae94689dd43902c9fb61620d688574399ab836cb5e54b35a67692ea816","schema_version":"1.0","event_id":"sha256:164b4dae94689dd43902c9fb61620d688574399ab836cb5e54b35a67692ea816"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:EO3RMBMSS5PLYM752C3PQJZZOA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Removing Imaging Systematics from Galaxy Clustering Measurements with Obiwan : Application to the SDSS-IV extended Baryon Oscillation Spectroscopic Survey Emission Line Galaxy Sample","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Anand Raichoor, Arnaud de Mattia, Ashley Ross, Cheng Zhao, Chia-Hsun Chuang, Graziano Rossi, H\\'elion du Mas des Bourboux, Hui Kong, Johan Comparat, John Moustakas, Kaylan J. Burleigh, Klaus Honscheid, Sichen Lin","submitted_at":"2020-07-17T14:09:49Z","abstract_excerpt":"This work presents the application of a new tool, Obiwan , which uses image simulations to determine the selection function of a galaxy redshift survey and calculate 3-dimensional (3D) clustering statistics. This is a forward model of the process by which images of the night sky are transformed into a 3D large--scale structure catalog. The photometric pipeline automatically detects and models galaxies and then generates a catalog of such galaxies with detailed information for each one of them, including their location, redshift and so on. Systematic biases in the imaging data are therefore imp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.08992","kind":"arxiv","version":1},"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/2007.08992/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":"2026-07-05T01:39:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CjW8inDTXHQxW2DqgMFauACtaYzOJPMzQDSHu74GvXPiAU8SHPgc17iO3niD5kZzdO6A+rsYVkvD6P2wVMm7Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-19T23:56:54.534517Z"},"content_sha256":"e1bed6b80d46d465ae88e9d4e53cfbbe4bbbd0d19fe769bf06a28a5a87ec9b60","schema_version":"1.0","event_id":"sha256:e1bed6b80d46d465ae88e9d4e53cfbbe4bbbd0d19fe769bf06a28a5a87ec9b60"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EO3RMBMSS5PLYM752C3PQJZZOA/bundle.json","state_url":"https://pith.science/pith/EO3RMBMSS5PLYM752C3PQJZZOA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EO3RMBMSS5PLYM752C3PQJZZOA/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":"2026-07-19T23:56:54Z","links":{"resolver":"https://pith.science/pith/EO3RMBMSS5PLYM752C3PQJZZOA","bundle":"https://pith.science/pith/EO3RMBMSS5PLYM752C3PQJZZOA/bundle.json","state":"https://pith.science/pith/EO3RMBMSS5PLYM752C3PQJZZOA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EO3RMBMSS5PLYM752C3PQJZZOA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:EO3RMBMSS5PLYM752C3PQJZZOA","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":"7b46c84d4f8c3f429c499b81cc94acfb6494a51a87694d2d3a27dc3b1cf3dc9b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-07-17T14:09:49Z","title_canon_sha256":"d72d6876ce4ba5b259fe6b6f1e837dc12660d5ab90927e4799c184911014fa4c"},"schema_version":"1.0","source":{"id":"2007.08992","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.08992","created_at":"2026-07-05T01:39:03Z"},{"alias_kind":"arxiv_version","alias_value":"2007.08992v1","created_at":"2026-07-05T01:39:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.08992","created_at":"2026-07-05T01:39:03Z"},{"alias_kind":"pith_short_12","alias_value":"EO3RMBMSS5PL","created_at":"2026-07-05T01:39:03Z"},{"alias_kind":"pith_short_16","alias_value":"EO3RMBMSS5PLYM75","created_at":"2026-07-05T01:39:03Z"},{"alias_kind":"pith_short_8","alias_value":"EO3RMBMS","created_at":"2026-07-05T01:39:03Z"}],"graph_snapshots":[{"event_id":"sha256:e1bed6b80d46d465ae88e9d4e53cfbbe4bbbd0d19fe769bf06a28a5a87ec9b60","target":"graph","created_at":"2026-07-05T01:39:03Z","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/2007.08992/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This work presents the application of a new tool, Obiwan , which uses image simulations to determine the selection function of a galaxy redshift survey and calculate 3-dimensional (3D) clustering statistics. This is a forward model of the process by which images of the night sky are transformed into a 3D large--scale structure catalog. The photometric pipeline automatically detects and models galaxies and then generates a catalog of such galaxies with detailed information for each one of them, including their location, redshift and so on. Systematic biases in the imaging data are therefore imp","authors_text":"Anand Raichoor, Arnaud de Mattia, Ashley Ross, Cheng Zhao, Chia-Hsun Chuang, Graziano Rossi, H\\'elion du Mas des Bourboux, Hui Kong, Johan Comparat, John Moustakas, Kaylan J. Burleigh, Klaus Honscheid, Sichen Lin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-07-17T14:09:49Z","title":"Removing Imaging Systematics from Galaxy Clustering Measurements with Obiwan : Application to the SDSS-IV extended Baryon Oscillation Spectroscopic Survey Emission Line Galaxy Sample"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.08992","kind":"arxiv","version":1},"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":"sha256:164b4dae94689dd43902c9fb61620d688574399ab836cb5e54b35a67692ea816","target":"record","created_at":"2026-07-05T01:39:03Z","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":"7b46c84d4f8c3f429c499b81cc94acfb6494a51a87694d2d3a27dc3b1cf3dc9b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-07-17T14:09:49Z","title_canon_sha256":"d72d6876ce4ba5b259fe6b6f1e837dc12660d5ab90927e4799c184911014fa4c"},"schema_version":"1.0","source":{"id":"2007.08992","kind":"arxiv","version":1}},"canonical_sha256":"23b7160592975ebc33fdd0b6f82739700cf5efca1ed943976a24a91ec62eaf15","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"23b7160592975ebc33fdd0b6f82739700cf5efca1ed943976a24a91ec62eaf15","first_computed_at":"2026-07-05T01:39:03.530353Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:39:03.530353Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JxqMPITgBTN525Kya4Axi76XJkVqoITFOam1gKnUpdpws2U4KWiwbRtTPCkTv9P1UDuFMhnG9JY/K0UIFi7NCw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:39:03.530835Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.08992","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:164b4dae94689dd43902c9fb61620d688574399ab836cb5e54b35a67692ea816","sha256:e1bed6b80d46d465ae88e9d4e53cfbbe4bbbd0d19fe769bf06a28a5a87ec9b60"],"state_sha256":"11f6b66a7333db5cb38b3152d84c8a528d41c600ba8f5adf6b2ae038d9770349"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uLd2s0E0y3DjG0OdnxkPuGqrQvk1YnOuaVnKNXw/w0wx1e0NSWKi21ku7RSdpjIZXso6tNLN2dnoQUpzdMRsCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-19T23:56:54.536957Z","bundle_sha256":"191da9b6353c8f6e0b328843bbb4c24dfb1d0e96ec715d1f34fd4023b94ccdc1"}}