{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:LVSNIDXQRNOR6KTAWQB4ZPR64Z","short_pith_number":"pith:LVSNIDXQ","canonical_record":{"source":{"id":"2003.10766","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-03-24T10:58:54Z","cross_cats_sorted":[],"title_canon_sha256":"6c06f2e8b079dd08efac6722c3c24f4a899c0435e226c4e0d5be3e869d715987","abstract_canon_sha256":"9be8a175e750edc60ab7105bda1463e28bedebaba7478af5d7c77b8a2ec4b363"},"schema_version":"1.0"},"canonical_sha256":"5d64d40ef08b5d1f2a60b403ccbe3ee667c871fcd20c724a4ff296e2bd2a2fa0","source":{"kind":"arxiv","id":"2003.10766","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2003.10766","created_at":"2026-07-05T00:58:51Z"},{"alias_kind":"arxiv_version","alias_value":"2003.10766v1","created_at":"2026-07-05T00:58:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2003.10766","created_at":"2026-07-05T00:58:51Z"},{"alias_kind":"pith_short_12","alias_value":"LVSNIDXQRNOR","created_at":"2026-07-05T00:58:51Z"},{"alias_kind":"pith_short_16","alias_value":"LVSNIDXQRNOR6KTA","created_at":"2026-07-05T00:58:51Z"},{"alias_kind":"pith_short_8","alias_value":"LVSNIDXQ","created_at":"2026-07-05T00:58:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:LVSNIDXQRNOR6KTAWQB4ZPR64Z","target":"record","payload":{"canonical_record":{"source":{"id":"2003.10766","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-03-24T10:58:54Z","cross_cats_sorted":[],"title_canon_sha256":"6c06f2e8b079dd08efac6722c3c24f4a899c0435e226c4e0d5be3e869d715987","abstract_canon_sha256":"9be8a175e750edc60ab7105bda1463e28bedebaba7478af5d7c77b8a2ec4b363"},"schema_version":"1.0"},"canonical_sha256":"5d64d40ef08b5d1f2a60b403ccbe3ee667c871fcd20c724a4ff296e2bd2a2fa0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:58:51.153096Z","signature_b64":"y6bQRgDlNKir9vTHFLZ311xlzqZkH0pleMnRoN/PsdgfZZ3Gw/Emthk4/q5nLc8gfA/GBqokdEfSJl43rm5+CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5d64d40ef08b5d1f2a60b403ccbe3ee667c871fcd20c724a4ff296e2bd2a2fa0","last_reissued_at":"2026-07-05T00:58:51.152724Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:58:51.152724Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2003.10766","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":"2026-07-05T00:58:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6btei2QqL43ZBQfG16EgjZUO26GoGc4w4M8HLjGB4iXxY2I5rVQiHdiWMhVCUPimGOFvhMptbfAOldcNcqoTCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-13T19:04:36.558251Z"},"content_sha256":"1e8f7133d68c3a0ea6fcab82e6c34efa09fe54825ee7e5516f7f2a0447f0ce38","schema_version":"1.0","event_id":"sha256:1e8f7133d68c3a0ea6fcab82e6c34efa09fe54825ee7e5516f7f2a0447f0ce38"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:LVSNIDXQRNOR6KTAWQB4ZPR64Z","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"PhotoWeb redshift: boosting photometric redshift accuracy with large spectroscopic surveys","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"C. Laigle, C. Pichon, D. Fouchez, D. Vibert, E. Bertin, J. Pasquet, K. Kraljic, Marko Shuntov, M. Treyer, O. Ilbert, S. Arnouts, S. de la Torre, Y. Dubois","submitted_at":"2020-03-24T10:58:54Z","abstract_excerpt":"Improving distance measurements in large imaging surveys is a major challenge to better reveal the distribution of galaxies on a large scale and to link galaxy properties with their environments. Photometric redshifts can be efficiently combined with the cosmic web (CW) extracted from overlapping spectroscopic surveys to improve their accuracy. We apply a similar method using a new generation of photometric redshifts based on a convolution neural network (CNN). The CNN is trained on the SDSS images with the main galaxy sample (SDSS-MGS, $r \\leq 17.8$) and the GAMA spectroscopic redshifts up to"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.10766","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/2003.10766/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":"2026-07-05T00:58:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3IZfW3ZpX+AZcFdBp/5y0xaNU5cze2zZWKmSdQGGVEbTWStyKNgs1ErTqEOu+qXzP8NZ/f0uI10VpsFgfdGNAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-13T19:04:36.558643Z"},"content_sha256":"c81aef8c9ffd722790324ce6ff83359475719b6ac868db0cefcae72c42a8b03c","schema_version":"1.0","event_id":"sha256:c81aef8c9ffd722790324ce6ff83359475719b6ac868db0cefcae72c42a8b03c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LVSNIDXQRNOR6KTAWQB4ZPR64Z/bundle.json","state_url":"https://pith.science/pith/LVSNIDXQRNOR6KTAWQB4ZPR64Z/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LVSNIDXQRNOR6KTAWQB4ZPR64Z/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":"2026-07-13T19:04:36Z","links":{"resolver":"https://pith.science/pith/LVSNIDXQRNOR6KTAWQB4ZPR64Z","bundle":"https://pith.science/pith/LVSNIDXQRNOR6KTAWQB4ZPR64Z/bundle.json","state":"https://pith.science/pith/LVSNIDXQRNOR6KTAWQB4ZPR64Z/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LVSNIDXQRNOR6KTAWQB4ZPR64Z/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:LVSNIDXQRNOR6KTAWQB4ZPR64Z","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":"9be8a175e750edc60ab7105bda1463e28bedebaba7478af5d7c77b8a2ec4b363","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-03-24T10:58:54Z","title_canon_sha256":"6c06f2e8b079dd08efac6722c3c24f4a899c0435e226c4e0d5be3e869d715987"},"schema_version":"1.0","source":{"id":"2003.10766","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2003.10766","created_at":"2026-07-05T00:58:51Z"},{"alias_kind":"arxiv_version","alias_value":"2003.10766v1","created_at":"2026-07-05T00:58:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2003.10766","created_at":"2026-07-05T00:58:51Z"},{"alias_kind":"pith_short_12","alias_value":"LVSNIDXQRNOR","created_at":"2026-07-05T00:58:51Z"},{"alias_kind":"pith_short_16","alias_value":"LVSNIDXQRNOR6KTA","created_at":"2026-07-05T00:58:51Z"},{"alias_kind":"pith_short_8","alias_value":"LVSNIDXQ","created_at":"2026-07-05T00:58:51Z"}],"graph_snapshots":[{"event_id":"sha256:c81aef8c9ffd722790324ce6ff83359475719b6ac868db0cefcae72c42a8b03c","target":"graph","created_at":"2026-07-05T00:58:51Z","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/2003.10766/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Improving distance measurements in large imaging surveys is a major challenge to better reveal the distribution of galaxies on a large scale and to link galaxy properties with their environments. Photometric redshifts can be efficiently combined with the cosmic web (CW) extracted from overlapping spectroscopic surveys to improve their accuracy. We apply a similar method using a new generation of photometric redshifts based on a convolution neural network (CNN). The CNN is trained on the SDSS images with the main galaxy sample (SDSS-MGS, $r \\leq 17.8$) and the GAMA spectroscopic redshifts up to","authors_text":"C. Laigle, C. Pichon, D. Fouchez, D. Vibert, E. Bertin, J. Pasquet, K. Kraljic, Marko Shuntov, M. Treyer, O. Ilbert, S. Arnouts, S. de la Torre, Y. Dubois","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-03-24T10:58:54Z","title":"PhotoWeb redshift: boosting photometric redshift accuracy with large spectroscopic surveys"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.10766","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":"sha256:1e8f7133d68c3a0ea6fcab82e6c34efa09fe54825ee7e5516f7f2a0447f0ce38","target":"record","created_at":"2026-07-05T00:58:51Z","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":"9be8a175e750edc60ab7105bda1463e28bedebaba7478af5d7c77b8a2ec4b363","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-03-24T10:58:54Z","title_canon_sha256":"6c06f2e8b079dd08efac6722c3c24f4a899c0435e226c4e0d5be3e869d715987"},"schema_version":"1.0","source":{"id":"2003.10766","kind":"arxiv","version":1}},"canonical_sha256":"5d64d40ef08b5d1f2a60b403ccbe3ee667c871fcd20c724a4ff296e2bd2a2fa0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5d64d40ef08b5d1f2a60b403ccbe3ee667c871fcd20c724a4ff296e2bd2a2fa0","first_computed_at":"2026-07-05T00:58:51.152724Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:58:51.152724Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"y6bQRgDlNKir9vTHFLZ311xlzqZkH0pleMnRoN/PsdgfZZ3Gw/Emthk4/q5nLc8gfA/GBqokdEfSJl43rm5+CQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:58:51.153096Z","signed_message":"canonical_sha256_bytes"},"source_id":"2003.10766","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1e8f7133d68c3a0ea6fcab82e6c34efa09fe54825ee7e5516f7f2a0447f0ce38","sha256:c81aef8c9ffd722790324ce6ff83359475719b6ac868db0cefcae72c42a8b03c"],"state_sha256":"c168045ad8b49e4f142936a8172de4701ee02cb1dc3c4cd965331f9b8fcfe539"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sfLB1B6b5p6uKYJIWMXSuISqRVcUMUNtcUINf2ntbLrTDQP9iFGIuCqpsDuJejsEwlrKDThlCgnx59uZM618Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-13T19:04:36.560937Z","bundle_sha256":"ab7cf00d37b2f672d49c8198700840b46220ea8323a8d5100a0a4c5ae8d3fd67"}}