{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:26HCVBJH4Y3DUL46CZAA3GTGHP","short_pith_number":"pith:26HCVBJH","canonical_record":{"source":{"id":"0907.2819","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-07-16T12:18:56Z","cross_cats_sorted":[],"title_canon_sha256":"dfc8e83ef6a7559e6ee4974fd9be10bd675dbc85645e8c8a1a724fca1bf0f48f","abstract_canon_sha256":"d10ac8e9fdc49d4d3ed4c228b1003bdd65b3de9b34df0435246d2c28331e3dd5"},"schema_version":"1.0"},"canonical_sha256":"d78e2a8527e6363a2f9e16400d9a663bedf34987b9bff7f5aac4b5a9b7ce654c","source":{"kind":"arxiv","id":"0907.2819","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0907.2819","created_at":"2026-05-18T02:13:02Z"},{"alias_kind":"arxiv_version","alias_value":"0907.2819v1","created_at":"2026-05-18T02:13:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0907.2819","created_at":"2026-05-18T02:13:02Z"},{"alias_kind":"pith_short_12","alias_value":"26HCVBJH4Y3D","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"26HCVBJH4Y3DUL46","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"26HCVBJH","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:26HCVBJH4Y3DUL46CZAA3GTGHP","target":"record","payload":{"canonical_record":{"source":{"id":"0907.2819","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-07-16T12:18:56Z","cross_cats_sorted":[],"title_canon_sha256":"dfc8e83ef6a7559e6ee4974fd9be10bd675dbc85645e8c8a1a724fca1bf0f48f","abstract_canon_sha256":"d10ac8e9fdc49d4d3ed4c228b1003bdd65b3de9b34df0435246d2c28331e3dd5"},"schema_version":"1.0"},"canonical_sha256":"d78e2a8527e6363a2f9e16400d9a663bedf34987b9bff7f5aac4b5a9b7ce654c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:13:02.435994Z","signature_b64":"F9vpxEbwh3Ac2TibF6qT4Kc7pYVFTEFkKD0j+WYDsj9ypJXZsTQT5e5XuDAeCkDu0dBGfTXB4GnEECAJ/+RcDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d78e2a8527e6363a2f9e16400d9a663bedf34987b9bff7f5aac4b5a9b7ce654c","last_reissued_at":"2026-05-18T02:13:02.435267Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:13:02.435267Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0907.2819","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":"2026-05-18T02:13:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nn5+gtqOKV/awO05ptwOBC5f5aMl4jTuyiTLT+8tS80RxMcVIKSAoHRkDz5Ytl+nXYu6G+WoL6rUS2oI/8lMDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T10:03:31.614536Z"},"content_sha256":"163eb05c179c1c62bb7dae3e8483f13978f93c3145b3f49adf8cb8f0b9d35705","schema_version":"1.0","event_id":"sha256:163eb05c179c1c62bb7dae3e8483f13978f93c3145b3f49adf8cb8f0b9d35705"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:26HCVBJH4Y3DUL46CZAA3GTGHP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The infrared emission of ultraviolet selected galaxies from z = 0 to z=1","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"D. Burgarella, E. Giovannoli, K.L. Murata, T. T. Takeuchi, V. Buat","submitted_at":"2009-07-16T12:18:56Z","abstract_excerpt":"We select galaxies in UV rest-frame at z=0, z~0.7 and z~1 together with a sample of LBGs at z~1, the samples are built in order to sample the same range of luminosity at any redshift. The evolution of the IR and UV luminosities with z is analysed for individual galaxies as well as in terms of luminosity functions. The L_IR/L_UV ratio is used to measure dust attenuation. This ratio does not exhibit a strong evolution with z for the bulk of our sample galaxies but some trends are found for galaxies with a strong dust attenuation and for UV luminous sources: galaxies with L_IR/L_UV>10 are more fr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0907.2819","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":"2026-05-18T02:13:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6ioqokzgHJwJaVlht4kzkI4gUJCjIKJqXzI8DkVNe9qc+NHHNRft7Vw2XEyNRBcm0QSx0+3zkevVjgFGn8y5DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T10:03:31.614881Z"},"content_sha256":"7233b95de189a6055c5d9761819b4221199b998abd2a4daba4fa3a45c9af78d6","schema_version":"1.0","event_id":"sha256:7233b95de189a6055c5d9761819b4221199b998abd2a4daba4fa3a45c9af78d6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/26HCVBJH4Y3DUL46CZAA3GTGHP/bundle.json","state_url":"https://pith.science/pith/26HCVBJH4Y3DUL46CZAA3GTGHP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/26HCVBJH4Y3DUL46CZAA3GTGHP/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":"2026-06-02T10:03:31Z","links":{"resolver":"https://pith.science/pith/26HCVBJH4Y3DUL46CZAA3GTGHP","bundle":"https://pith.science/pith/26HCVBJH4Y3DUL46CZAA3GTGHP/bundle.json","state":"https://pith.science/pith/26HCVBJH4Y3DUL46CZAA3GTGHP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/26HCVBJH4Y3DUL46CZAA3GTGHP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:26HCVBJH4Y3DUL46CZAA3GTGHP","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":"d10ac8e9fdc49d4d3ed4c228b1003bdd65b3de9b34df0435246d2c28331e3dd5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-07-16T12:18:56Z","title_canon_sha256":"dfc8e83ef6a7559e6ee4974fd9be10bd675dbc85645e8c8a1a724fca1bf0f48f"},"schema_version":"1.0","source":{"id":"0907.2819","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0907.2819","created_at":"2026-05-18T02:13:02Z"},{"alias_kind":"arxiv_version","alias_value":"0907.2819v1","created_at":"2026-05-18T02:13:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0907.2819","created_at":"2026-05-18T02:13:02Z"},{"alias_kind":"pith_short_12","alias_value":"26HCVBJH4Y3D","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"26HCVBJH4Y3DUL46","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"26HCVBJH","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:7233b95de189a6055c5d9761819b4221199b998abd2a4daba4fa3a45c9af78d6","target":"graph","created_at":"2026-05-18T02:13:02Z","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":"We select galaxies in UV rest-frame at z=0, z~0.7 and z~1 together with a sample of LBGs at z~1, the samples are built in order to sample the same range of luminosity at any redshift. The evolution of the IR and UV luminosities with z is analysed for individual galaxies as well as in terms of luminosity functions. The L_IR/L_UV ratio is used to measure dust attenuation. This ratio does not exhibit a strong evolution with z for the bulk of our sample galaxies but some trends are found for galaxies with a strong dust attenuation and for UV luminous sources: galaxies with L_IR/L_UV>10 are more fr","authors_text":"D. Burgarella, E. Giovannoli, K.L. Murata, T. T. Takeuchi, V. Buat","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-07-16T12:18:56Z","title":"The infrared emission of ultraviolet selected galaxies from z = 0 to z=1"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0907.2819","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":"sha256:163eb05c179c1c62bb7dae3e8483f13978f93c3145b3f49adf8cb8f0b9d35705","target":"record","created_at":"2026-05-18T02:13:02Z","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":"d10ac8e9fdc49d4d3ed4c228b1003bdd65b3de9b34df0435246d2c28331e3dd5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-07-16T12:18:56Z","title_canon_sha256":"dfc8e83ef6a7559e6ee4974fd9be10bd675dbc85645e8c8a1a724fca1bf0f48f"},"schema_version":"1.0","source":{"id":"0907.2819","kind":"arxiv","version":1}},"canonical_sha256":"d78e2a8527e6363a2f9e16400d9a663bedf34987b9bff7f5aac4b5a9b7ce654c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d78e2a8527e6363a2f9e16400d9a663bedf34987b9bff7f5aac4b5a9b7ce654c","first_computed_at":"2026-05-18T02:13:02.435267Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:13:02.435267Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"F9vpxEbwh3Ac2TibF6qT4Kc7pYVFTEFkKD0j+WYDsj9ypJXZsTQT5e5XuDAeCkDu0dBGfTXB4GnEECAJ/+RcDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:13:02.435994Z","signed_message":"canonical_sha256_bytes"},"source_id":"0907.2819","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:163eb05c179c1c62bb7dae3e8483f13978f93c3145b3f49adf8cb8f0b9d35705","sha256:7233b95de189a6055c5d9761819b4221199b998abd2a4daba4fa3a45c9af78d6"],"state_sha256":"4e38ee14a3082786f84325b71580165b810e97ef8d3857300be4cc338afc4956"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wSodUeEumI2J/YILQsOAKvlCd6uo/nhqiub7bbRVlbrUHmpIat7393ZBtxvxJoLnyo4F3x4jbOWrp0X1DKlLAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T10:03:31.616826Z","bundle_sha256":"195633e19ff642f56eff55a6834c0d87607bdee280b03d9dc04d957960980e20"}}