{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:6JLGPZAX4EOTDHSXOCEMZQFN7W","short_pith_number":"pith:6JLGPZAX","canonical_record":{"source":{"id":"2308.04863","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2023-08-09T10:54:24Z","cross_cats_sorted":["astro-ph.GA","astro-ph.HE"],"title_canon_sha256":"f57768e4faa8ed8120af42ef80de171d86fda815c06437605dd980b0f58ee122","abstract_canon_sha256":"6b188e37e349b096018e6b96f9652decc2465ef2606228f5670c3ac888e92101"},"schema_version":"1.0"},"canonical_sha256":"f25667e417e11d319e577088ccc0adfda452f953b5e88681775695fbe1123118","source":{"kind":"arxiv","id":"2308.04863","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2308.04863","created_at":"2026-07-05T06:39:44Z"},{"alias_kind":"arxiv_version","alias_value":"2308.04863v1","created_at":"2026-07-05T06:39:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2308.04863","created_at":"2026-07-05T06:39:44Z"},{"alias_kind":"pith_short_12","alias_value":"6JLGPZAX4EOT","created_at":"2026-07-05T06:39:44Z"},{"alias_kind":"pith_short_16","alias_value":"6JLGPZAX4EOTDHSX","created_at":"2026-07-05T06:39:44Z"},{"alias_kind":"pith_short_8","alias_value":"6JLGPZAX","created_at":"2026-07-05T06:39:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:6JLGPZAX4EOTDHSXOCEMZQFN7W","target":"record","payload":{"canonical_record":{"source":{"id":"2308.04863","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2023-08-09T10:54:24Z","cross_cats_sorted":["astro-ph.GA","astro-ph.HE"],"title_canon_sha256":"f57768e4faa8ed8120af42ef80de171d86fda815c06437605dd980b0f58ee122","abstract_canon_sha256":"6b188e37e349b096018e6b96f9652decc2465ef2606228f5670c3ac888e92101"},"schema_version":"1.0"},"canonical_sha256":"f25667e417e11d319e577088ccc0adfda452f953b5e88681775695fbe1123118","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:39:44.059353Z","signature_b64":"lYFKK9mzjDPfWgLZ3z5uA22RXOoiVX1kPZxh4cI6QWeI5HVtyvUf+0wJ2J05BrA2Pj6l4YERjbY+VRFOpnz+BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f25667e417e11d319e577088ccc0adfda452f953b5e88681775695fbe1123118","last_reissued_at":"2026-07-05T06:39:44.058868Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:39:44.058868Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2308.04863","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":"2026-07-05T06:39:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a0Ih4Z/GyZbwxCzj8FIsgYulGdxR6a1T3kuj+3pCw1nvyYawpklyD92as2sGQGymQjzEjcFngYZBjVeWG7OHDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T00:01:40.601362Z"},"content_sha256":"9284393c9c999a0ccd9365d21ce2124823f1ca0bcf30fb687fec927a57543ca5","schema_version":"1.0","event_id":"sha256:9284393c9c999a0ccd9365d21ce2124823f1ca0bcf30fb687fec927a57543ca5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:6JLGPZAX4EOTDHSXOCEMZQFN7W","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Using 4MOST to refine the measurement of galaxy properties: A case study of Supernova hosts","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.GA","astro-ph.HE"],"primary_cat":"astro-ph.IM","authors_text":"A. Fritz, A. Humphrey, A. Milligan, B. F. Roukema, B. Holwerda, D. Head, G. A. Lowes, I. M. Hook, J. Dumayne, M. Nicholl, O. Graur, P. Wiseman, S. C. Williams","submitted_at":"2023-08-09T10:54:24Z","abstract_excerpt":"The Rubin Observatory's 10-year Legacy Survey of Space and Time will observe near to 20 billion galaxies. For each galaxy the properties can be inferred. Approximately $10^5$ galaxies observed per year will contain Type Ia supernovae (SNe), allowing SN host-galaxy properties to be calculated on a large scale. Measuring the properties of SN host-galaxies serves two main purposes. The first is that there are known correlations between host-galaxy type and supernova type, which can be used to aid in the classification of SNe. Secondly, Type Ia SNe exhibit correlations between host-galaxy properti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2308.04863","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/2308.04863/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":"2026-07-05T06:39:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+XFUUq+b/As9bEHp2A6kG4P4FDTEapK15lGNajjyId7Zg0ym/fPLJDp8VhiCAEqY4dr8ASR2D6AnqSNzS4gCCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T00:01:40.601900Z"},"content_sha256":"7187cf9292b4d22b75388c1d5e5869621873e6821f4e08d099d029f5c2dbbb81","schema_version":"1.0","event_id":"sha256:7187cf9292b4d22b75388c1d5e5869621873e6821f4e08d099d029f5c2dbbb81"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6JLGPZAX4EOTDHSXOCEMZQFN7W/bundle.json","state_url":"https://pith.science/pith/6JLGPZAX4EOTDHSXOCEMZQFN7W/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6JLGPZAX4EOTDHSXOCEMZQFN7W/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":"2026-08-07T00:01:40Z","links":{"resolver":"https://pith.science/pith/6JLGPZAX4EOTDHSXOCEMZQFN7W","bundle":"https://pith.science/pith/6JLGPZAX4EOTDHSXOCEMZQFN7W/bundle.json","state":"https://pith.science/pith/6JLGPZAX4EOTDHSXOCEMZQFN7W/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6JLGPZAX4EOTDHSXOCEMZQFN7W/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:6JLGPZAX4EOTDHSXOCEMZQFN7W","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":"6b188e37e349b096018e6b96f9652decc2465ef2606228f5670c3ac888e92101","cross_cats_sorted":["astro-ph.GA","astro-ph.HE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2023-08-09T10:54:24Z","title_canon_sha256":"f57768e4faa8ed8120af42ef80de171d86fda815c06437605dd980b0f58ee122"},"schema_version":"1.0","source":{"id":"2308.04863","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2308.04863","created_at":"2026-07-05T06:39:44Z"},{"alias_kind":"arxiv_version","alias_value":"2308.04863v1","created_at":"2026-07-05T06:39:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2308.04863","created_at":"2026-07-05T06:39:44Z"},{"alias_kind":"pith_short_12","alias_value":"6JLGPZAX4EOT","created_at":"2026-07-05T06:39:44Z"},{"alias_kind":"pith_short_16","alias_value":"6JLGPZAX4EOTDHSX","created_at":"2026-07-05T06:39:44Z"},{"alias_kind":"pith_short_8","alias_value":"6JLGPZAX","created_at":"2026-07-05T06:39:44Z"}],"graph_snapshots":[{"event_id":"sha256:7187cf9292b4d22b75388c1d5e5869621873e6821f4e08d099d029f5c2dbbb81","target":"graph","created_at":"2026-07-05T06:39:44Z","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/2308.04863/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Rubin Observatory's 10-year Legacy Survey of Space and Time will observe near to 20 billion galaxies. For each galaxy the properties can be inferred. Approximately $10^5$ galaxies observed per year will contain Type Ia supernovae (SNe), allowing SN host-galaxy properties to be calculated on a large scale. Measuring the properties of SN host-galaxies serves two main purposes. The first is that there are known correlations between host-galaxy type and supernova type, which can be used to aid in the classification of SNe. Secondly, Type Ia SNe exhibit correlations between host-galaxy properti","authors_text":"A. Fritz, A. Humphrey, A. Milligan, B. F. Roukema, B. Holwerda, D. Head, G. A. Lowes, I. M. Hook, J. Dumayne, M. Nicholl, O. Graur, P. Wiseman, S. C. Williams","cross_cats":["astro-ph.GA","astro-ph.HE"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2023-08-09T10:54:24Z","title":"Using 4MOST to refine the measurement of galaxy properties: A case study of Supernova hosts"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2308.04863","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":"sha256:9284393c9c999a0ccd9365d21ce2124823f1ca0bcf30fb687fec927a57543ca5","target":"record","created_at":"2026-07-05T06:39:44Z","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":"6b188e37e349b096018e6b96f9652decc2465ef2606228f5670c3ac888e92101","cross_cats_sorted":["astro-ph.GA","astro-ph.HE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2023-08-09T10:54:24Z","title_canon_sha256":"f57768e4faa8ed8120af42ef80de171d86fda815c06437605dd980b0f58ee122"},"schema_version":"1.0","source":{"id":"2308.04863","kind":"arxiv","version":1}},"canonical_sha256":"f25667e417e11d319e577088ccc0adfda452f953b5e88681775695fbe1123118","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f25667e417e11d319e577088ccc0adfda452f953b5e88681775695fbe1123118","first_computed_at":"2026-07-05T06:39:44.058868Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:39:44.058868Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lYFKK9mzjDPfWgLZ3z5uA22RXOoiVX1kPZxh4cI6QWeI5HVtyvUf+0wJ2J05BrA2Pj6l4YERjbY+VRFOpnz+BQ==","signature_status":"signed_v1","signed_at":"2026-07-05T06:39:44.059353Z","signed_message":"canonical_sha256_bytes"},"source_id":"2308.04863","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9284393c9c999a0ccd9365d21ce2124823f1ca0bcf30fb687fec927a57543ca5","sha256:7187cf9292b4d22b75388c1d5e5869621873e6821f4e08d099d029f5c2dbbb81"],"state_sha256":"44eb44fd2c03d7f420b3dfbf3b9ad94ee98059ed82cfd9be0692891e139aff25"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NmARLEZ9ARNT0vCOLAuJbAXDh9CFdd3VkEgHLsZcZtHe7d2TMGO8QW6yYMx7S9wCU6XazIco0EONhGU4cNWtBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T00:01:40.630284Z","bundle_sha256":"42c3d2cce1fdbac41c6ad1b8a48c44f281bf650725f073e05b18c6d504f17d32"}}