{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:2V35WW3JUPEOP6PTNEUKOGRFLJ","short_pith_number":"pith:2V35WW3J","canonical_record":{"source":{"id":"1307.8062","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-07-30T17:43:45Z","cross_cats_sorted":[],"title_canon_sha256":"3471c969b0db132bdbad545c2284488ed1a7ffc5373539b9f519d78f14e09d7e","abstract_canon_sha256":"a2fbc1f6faa5d33ec6b75cecaf77eda9092ebdc0f468b0c5961f14e58765a448"},"schema_version":"1.0"},"canonical_sha256":"d577db5b69a3c8e7f9f36928a71a255a60e7c0925be3509997ade24a754a87bc","source":{"kind":"arxiv","id":"1307.8062","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.8062","created_at":"2026-05-18T00:49:19Z"},{"alias_kind":"arxiv_version","alias_value":"1307.8062v1","created_at":"2026-05-18T00:49:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.8062","created_at":"2026-05-18T00:49:19Z"},{"alias_kind":"pith_short_12","alias_value":"2V35WW3JUPEO","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"2V35WW3JUPEOP6PT","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"2V35WW3J","created_at":"2026-05-18T12:27:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:2V35WW3JUPEOP6PTNEUKOGRFLJ","target":"record","payload":{"canonical_record":{"source":{"id":"1307.8062","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-07-30T17:43:45Z","cross_cats_sorted":[],"title_canon_sha256":"3471c969b0db132bdbad545c2284488ed1a7ffc5373539b9f519d78f14e09d7e","abstract_canon_sha256":"a2fbc1f6faa5d33ec6b75cecaf77eda9092ebdc0f468b0c5961f14e58765a448"},"schema_version":"1.0"},"canonical_sha256":"d577db5b69a3c8e7f9f36928a71a255a60e7c0925be3509997ade24a754a87bc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:49:19.580561Z","signature_b64":"0qAc/ter3kzUuUEAP6DUGW2MqXhqOi6O37aVK3QKE5NLt1ZdbVP7acuGV6vXNY1UvW1v6GshG5zgvWFl4LkqAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d577db5b69a3c8e7f9f36928a71a255a60e7c0925be3509997ade24a754a87bc","last_reissued_at":"2026-05-18T00:49:19.580155Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:49:19.580155Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1307.8062","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":"2026-05-18T00:49:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QSi3CoeeOxOreVOs6qKvPuMfx/beQu3ia4POuoZgQSi/w6rxapE6l7qgCgjaHg1Wj1iwvAYrikiCK8R+YARdAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T05:57:05.980704Z"},"content_sha256":"3c4d5d8c8b4b49b2662f0f1dd7863303b8cb560dd91af36b8707b81d9a5daa36","schema_version":"1.0","event_id":"sha256:3c4d5d8c8b4b49b2662f0f1dd7863303b8cb560dd91af36b8707b81d9a5daa36"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:2V35WW3JUPEOP6PTNEUKOGRFLJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Optimising Spectroscopic and Photometric Galaxy Surveys: Same-sky Benefits for Dark Energy and Modified Gravity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Donnacha Kirk, Filipe B. Abdalla, Joshua A. Frieman, Ofer Lahav, Sarah Bridle, Stephanie Jouvel","submitted_at":"2013-07-30T17:43:45Z","abstract_excerpt":"The combination of multiple cosmological probes can produce measurements of cosmological parameters much more stringent than those possible with any individual probe. We examine the combination of two highly correlated probes of late-time structure growth: (i) weak gravitational lensing from a survey with photometric redshifts and (ii) galaxy clustering and redshift space distortions from a survey with spectroscopic redshifts. We choose generic survey designs so that our results are applicable to a range of current and future photometric redshift (e.g. KiDS, DES, HSC, Euclid) and spectroscopic"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.8062","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":""},"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":"2026-05-18T00:49:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fiaOyTBG6p5o5b6OzWXjePWaWjoxk7HxsELhRtMi8tMComkxLjm/9DEXbKS0oOeqWZBPb+MRzWlL+Bn3J+LsBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T05:57:05.981052Z"},"content_sha256":"6ef8021dae673789de0606e38acf3e0173cf78db7ad23480a0560e9871f59290","schema_version":"1.0","event_id":"sha256:6ef8021dae673789de0606e38acf3e0173cf78db7ad23480a0560e9871f59290"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2V35WW3JUPEOP6PTNEUKOGRFLJ/bundle.json","state_url":"https://pith.science/pith/2V35WW3JUPEOP6PTNEUKOGRFLJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2V35WW3JUPEOP6PTNEUKOGRFLJ/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":"2026-05-31T05:57:05Z","links":{"resolver":"https://pith.science/pith/2V35WW3JUPEOP6PTNEUKOGRFLJ","bundle":"https://pith.science/pith/2V35WW3JUPEOP6PTNEUKOGRFLJ/bundle.json","state":"https://pith.science/pith/2V35WW3JUPEOP6PTNEUKOGRFLJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2V35WW3JUPEOP6PTNEUKOGRFLJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:2V35WW3JUPEOP6PTNEUKOGRFLJ","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":"a2fbc1f6faa5d33ec6b75cecaf77eda9092ebdc0f468b0c5961f14e58765a448","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-07-30T17:43:45Z","title_canon_sha256":"3471c969b0db132bdbad545c2284488ed1a7ffc5373539b9f519d78f14e09d7e"},"schema_version":"1.0","source":{"id":"1307.8062","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.8062","created_at":"2026-05-18T00:49:19Z"},{"alias_kind":"arxiv_version","alias_value":"1307.8062v1","created_at":"2026-05-18T00:49:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.8062","created_at":"2026-05-18T00:49:19Z"},{"alias_kind":"pith_short_12","alias_value":"2V35WW3JUPEO","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"2V35WW3JUPEOP6PT","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"2V35WW3J","created_at":"2026-05-18T12:27:32Z"}],"graph_snapshots":[{"event_id":"sha256:6ef8021dae673789de0606e38acf3e0173cf78db7ad23480a0560e9871f59290","target":"graph","created_at":"2026-05-18T00:49:19Z","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":"The combination of multiple cosmological probes can produce measurements of cosmological parameters much more stringent than those possible with any individual probe. We examine the combination of two highly correlated probes of late-time structure growth: (i) weak gravitational lensing from a survey with photometric redshifts and (ii) galaxy clustering and redshift space distortions from a survey with spectroscopic redshifts. We choose generic survey designs so that our results are applicable to a range of current and future photometric redshift (e.g. KiDS, DES, HSC, Euclid) and spectroscopic","authors_text":"Donnacha Kirk, Filipe B. Abdalla, Joshua A. Frieman, Ofer Lahav, Sarah Bridle, Stephanie Jouvel","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-07-30T17:43:45Z","title":"Optimising Spectroscopic and Photometric Galaxy Surveys: Same-sky Benefits for Dark Energy and Modified Gravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.8062","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":"sha256:3c4d5d8c8b4b49b2662f0f1dd7863303b8cb560dd91af36b8707b81d9a5daa36","target":"record","created_at":"2026-05-18T00:49:19Z","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":"a2fbc1f6faa5d33ec6b75cecaf77eda9092ebdc0f468b0c5961f14e58765a448","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-07-30T17:43:45Z","title_canon_sha256":"3471c969b0db132bdbad545c2284488ed1a7ffc5373539b9f519d78f14e09d7e"},"schema_version":"1.0","source":{"id":"1307.8062","kind":"arxiv","version":1}},"canonical_sha256":"d577db5b69a3c8e7f9f36928a71a255a60e7c0925be3509997ade24a754a87bc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d577db5b69a3c8e7f9f36928a71a255a60e7c0925be3509997ade24a754a87bc","first_computed_at":"2026-05-18T00:49:19.580155Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:49:19.580155Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0qAc/ter3kzUuUEAP6DUGW2MqXhqOi6O37aVK3QKE5NLt1ZdbVP7acuGV6vXNY1UvW1v6GshG5zgvWFl4LkqAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:49:19.580561Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.8062","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3c4d5d8c8b4b49b2662f0f1dd7863303b8cb560dd91af36b8707b81d9a5daa36","sha256:6ef8021dae673789de0606e38acf3e0173cf78db7ad23480a0560e9871f59290"],"state_sha256":"fe19b2d07f9658d02351574e1496dbab365c70142459b74b0688ce657136a7e9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SVLvmptn314N1/8SlJ1KU9Z7GJRYLvE2ylauO0FVmspYM9OepbcWlR3jbGbgG8Z5WJDs/qtR5k9BsZV+J+rICw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T05:57:05.983463Z","bundle_sha256":"9ba975b9fadad5a4b864859a1665bf8ba932268a90f0117f92d77d623a2293ed"}}