{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:6FXI3RQM6QE5YGEJYATNJBQN2D","short_pith_number":"pith:6FXI3RQM","canonical_record":{"source":{"id":"1301.3010","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-01-14T15:18:47Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"bdc2a5c9b5942b99d56a9a2002922709f4210aa1e577b4f5eb2b9d1aad2acfec","abstract_canon_sha256":"290c737883e0435e838c2c6b46d5657e9bef2200be86645ff82e59179b53c5b2"},"schema_version":"1.0"},"canonical_sha256":"f16e8dc60cf409dc1889c026d4860dd0ee3b176d1956f5b1603a0d49707046c4","source":{"kind":"arxiv","id":"1301.3010","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.3010","created_at":"2026-05-18T01:52:12Z"},{"alias_kind":"arxiv_version","alias_value":"1301.3010v2","created_at":"2026-05-18T01:52:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.3010","created_at":"2026-05-18T01:52:12Z"},{"alias_kind":"pith_short_12","alias_value":"6FXI3RQM6QE5","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_16","alias_value":"6FXI3RQM6QE5YGEJ","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_8","alias_value":"6FXI3RQM","created_at":"2026-05-18T12:27:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:6FXI3RQM6QE5YGEJYATNJBQN2D","target":"record","payload":{"canonical_record":{"source":{"id":"1301.3010","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-01-14T15:18:47Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"bdc2a5c9b5942b99d56a9a2002922709f4210aa1e577b4f5eb2b9d1aad2acfec","abstract_canon_sha256":"290c737883e0435e838c2c6b46d5657e9bef2200be86645ff82e59179b53c5b2"},"schema_version":"1.0"},"canonical_sha256":"f16e8dc60cf409dc1889c026d4860dd0ee3b176d1956f5b1603a0d49707046c4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:52:12.623431Z","signature_b64":"nXrUXiYEQikzxN9TN8aKPNSFXmjqvGdF3AqcMhHi+xT1cztQJJTPp63fLWhxeLdOnqY9pOtg2R8EOc90OeExAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f16e8dc60cf409dc1889c026d4860dd0ee3b176d1956f5b1603a0d49707046c4","last_reissued_at":"2026-05-18T01:52:12.622869Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:52:12.622869Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1301.3010","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":"2026-05-18T01:52:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"isBEM/5Rr0VwEeSSVLBLcnOeCiqChy9NMF35uBOxxehfyS+ElolwH7a4og475eFuOnS+zRFb9g/tRcghP/d0Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T10:45:15.246169Z"},"content_sha256":"7d2bf0b3ae0c9eca00f5f05fe79d3748b43a04407f655a9625f1ab43fc99b6a3","schema_version":"1.0","event_id":"sha256:7d2bf0b3ae0c9eca00f5f05fe79d3748b43a04407f655a9625f1ab43fc99b6a3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:6FXI3RQM6QE5YGEJYATNJBQN2D","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A new method to improve photometric redshift reconstruction. Applications to the Large Synoptic Survey Telescope","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.CO","authors_text":"Alexandra Abate, Alexia Gorecki, Aur\\'elien Barrau, Jean-St\\'ephane Ricol, Marc Moniez, R\\'eza Ansari, Sylvain Baumont","submitted_at":"2013-01-14T15:18:47Z","abstract_excerpt":"In the next decade, the LSST will become a major facility for the astronomical community. However accurately determining the redshifts of the observed galaxies without using spectroscopy is a major challenge. Reconstruction of the redshifts with high resolution and well-understood uncertainties is mandatory for many science goals, including the study of baryonic acoustic oscillations. We investigate different approaches to establish the accuracy that can be reached by the LSST six-band photometry. We construct a realistic mock galaxy catalog, based on the GOODS survey luminosity function, by s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.3010","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":"2026-05-18T01:52:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ho6f71J2OOqtuWAKSi4yYMzowxQh19SaFFiqlXO/Fg7ewhHe8dboZIFxJJfrOrvK5Oi7jL8jW2SZMieXYgQcBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T10:45:15.246538Z"},"content_sha256":"08f109b1728c8b81c38cfe6f05691785514bae58381b2b7c8d3458c6b11ab8dc","schema_version":"1.0","event_id":"sha256:08f109b1728c8b81c38cfe6f05691785514bae58381b2b7c8d3458c6b11ab8dc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6FXI3RQM6QE5YGEJYATNJBQN2D/bundle.json","state_url":"https://pith.science/pith/6FXI3RQM6QE5YGEJYATNJBQN2D/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6FXI3RQM6QE5YGEJYATNJBQN2D/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":"2026-06-01T10:45:15Z","links":{"resolver":"https://pith.science/pith/6FXI3RQM6QE5YGEJYATNJBQN2D","bundle":"https://pith.science/pith/6FXI3RQM6QE5YGEJYATNJBQN2D/bundle.json","state":"https://pith.science/pith/6FXI3RQM6QE5YGEJYATNJBQN2D/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6FXI3RQM6QE5YGEJYATNJBQN2D/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:6FXI3RQM6QE5YGEJYATNJBQN2D","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":"290c737883e0435e838c2c6b46d5657e9bef2200be86645ff82e59179b53c5b2","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-01-14T15:18:47Z","title_canon_sha256":"bdc2a5c9b5942b99d56a9a2002922709f4210aa1e577b4f5eb2b9d1aad2acfec"},"schema_version":"1.0","source":{"id":"1301.3010","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.3010","created_at":"2026-05-18T01:52:12Z"},{"alias_kind":"arxiv_version","alias_value":"1301.3010v2","created_at":"2026-05-18T01:52:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.3010","created_at":"2026-05-18T01:52:12Z"},{"alias_kind":"pith_short_12","alias_value":"6FXI3RQM6QE5","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_16","alias_value":"6FXI3RQM6QE5YGEJ","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_8","alias_value":"6FXI3RQM","created_at":"2026-05-18T12:27:36Z"}],"graph_snapshots":[{"event_id":"sha256:08f109b1728c8b81c38cfe6f05691785514bae58381b2b7c8d3458c6b11ab8dc","target":"graph","created_at":"2026-05-18T01:52:12Z","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":"In the next decade, the LSST will become a major facility for the astronomical community. However accurately determining the redshifts of the observed galaxies without using spectroscopy is a major challenge. Reconstruction of the redshifts with high resolution and well-understood uncertainties is mandatory for many science goals, including the study of baryonic acoustic oscillations. We investigate different approaches to establish the accuracy that can be reached by the LSST six-band photometry. We construct a realistic mock galaxy catalog, based on the GOODS survey luminosity function, by s","authors_text":"Alexandra Abate, Alexia Gorecki, Aur\\'elien Barrau, Jean-St\\'ephane Ricol, Marc Moniez, R\\'eza Ansari, Sylvain Baumont","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-01-14T15:18:47Z","title":"A new method to improve photometric redshift reconstruction. Applications to the Large Synoptic Survey Telescope"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.3010","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":"sha256:7d2bf0b3ae0c9eca00f5f05fe79d3748b43a04407f655a9625f1ab43fc99b6a3","target":"record","created_at":"2026-05-18T01:52:12Z","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":"290c737883e0435e838c2c6b46d5657e9bef2200be86645ff82e59179b53c5b2","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-01-14T15:18:47Z","title_canon_sha256":"bdc2a5c9b5942b99d56a9a2002922709f4210aa1e577b4f5eb2b9d1aad2acfec"},"schema_version":"1.0","source":{"id":"1301.3010","kind":"arxiv","version":2}},"canonical_sha256":"f16e8dc60cf409dc1889c026d4860dd0ee3b176d1956f5b1603a0d49707046c4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f16e8dc60cf409dc1889c026d4860dd0ee3b176d1956f5b1603a0d49707046c4","first_computed_at":"2026-05-18T01:52:12.622869Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:52:12.622869Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nXrUXiYEQikzxN9TN8aKPNSFXmjqvGdF3AqcMhHi+xT1cztQJJTPp63fLWhxeLdOnqY9pOtg2R8EOc90OeExAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:52:12.623431Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.3010","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7d2bf0b3ae0c9eca00f5f05fe79d3748b43a04407f655a9625f1ab43fc99b6a3","sha256:08f109b1728c8b81c38cfe6f05691785514bae58381b2b7c8d3458c6b11ab8dc"],"state_sha256":"d767cfa02e2001335edcd1b043f5d6b2e7b013046e983c6fd52ab86c05c0dc90"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QCOQMHr5gSmzCt4PPAKg5XaGc2IIcM7nrlyW+UDvmnPYL/Iv1Uut/mKd8KmI31H61hjsaV3ZtM+F1Du93MFcBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T10:45:15.248487Z","bundle_sha256":"2bc00f4bbc0f748395f30f1328d381c0a8abe8f4c935c2cd314954257058d433"}}