{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:DUELWIQW6CEO36DEKXJXGKORL3","short_pith_number":"pith:DUELWIQW","canonical_record":{"source":{"id":"0909.3569","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-09-19T08:38:50Z","cross_cats_sorted":[],"title_canon_sha256":"acf1459c07b52cc582b3f44618f31d640396472772f3382282f93c104598c0e5","abstract_canon_sha256":"a72a434d067474116e12248f7d342732120ddb0331b83bc08cdef18a1c51e13e"},"schema_version":"1.0"},"canonical_sha256":"1d08bb2216f088edf86455d37329d15efaa49106b17302322e64a0a1851faabb","source":{"kind":"arxiv","id":"0909.3569","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.3569","created_at":"2026-05-18T02:11:46Z"},{"alias_kind":"arxiv_version","alias_value":"0909.3569v1","created_at":"2026-05-18T02:11:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.3569","created_at":"2026-05-18T02:11:46Z"},{"alias_kind":"pith_short_12","alias_value":"DUELWIQW6CEO","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_16","alias_value":"DUELWIQW6CEO36DE","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_8","alias_value":"DUELWIQW","created_at":"2026-05-18T12:25:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:DUELWIQW6CEO36DEKXJXGKORL3","target":"record","payload":{"canonical_record":{"source":{"id":"0909.3569","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-09-19T08:38:50Z","cross_cats_sorted":[],"title_canon_sha256":"acf1459c07b52cc582b3f44618f31d640396472772f3382282f93c104598c0e5","abstract_canon_sha256":"a72a434d067474116e12248f7d342732120ddb0331b83bc08cdef18a1c51e13e"},"schema_version":"1.0"},"canonical_sha256":"1d08bb2216f088edf86455d37329d15efaa49106b17302322e64a0a1851faabb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:11:46.175037Z","signature_b64":"puGUtEBax63Cb5LZAqVqn+l0TKA7VVa02gLwasSFpRiyAl6iciXfxuaFo6xeOUsq3ydccomFeKHZ2oJXbyeSBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1d08bb2216f088edf86455d37329d15efaa49106b17302322e64a0a1851faabb","last_reissued_at":"2026-05-18T02:11:46.174227Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:11:46.174227Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0909.3569","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":"2026-05-18T02:11:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I/8L4ViX4Fqd5MaAANJ7bpNdc1rl40lhdF0HGtqP7OBGfUAkwPY7wFNl7bR8v8d2Nrealgdgng+mWc0TQ2hzDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T05:39:50.626867Z"},"content_sha256":"26e653b1b8ecd68aa931f2c0be1195762f64a362024daa986abebe43ae3b29e2","schema_version":"1.0","event_id":"sha256:26e653b1b8ecd68aa931f2c0be1195762f64a362024daa986abebe43ae3b29e2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:DUELWIQW6CEO36DEKXJXGKORL3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Effect of Dust Extinction on the Observed Properties of Galaxies in the Near-Infrared","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Ihab F. Riad (1), Patrick A. Woudt (1) ((1) Department of Astronomy, Ren\\'ee C. Kraan-Korteweg (1), South Africa), University of Cape Town","submitted_at":"2009-09-19T08:38:50Z","abstract_excerpt":"Galaxies behind the Milky Way suffer size reduction and dimming due to their obscuration by dust in the disk of our Galaxy. The degree of obscuration is wavelength dependent. It decreases towards longer wavelengths. Compared to the optical, the Near InfraRed (NIR) $K_s$ band extinction is only $\\approx10%$ that of the $B$ band. This makes NIR surveys well suited for galaxy surveys close to the Galactic Plane where extinction is severe.\n  While Galactic obscuration is less prominent in the NIR it is not negligible. In this paper we derive empirical relations to correct isophotal radii and magni"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.3569","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":"2026-05-18T02:11:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fhA6k8AUgcgEIxtrYINgNmg6Db6IUvJUbu+YPJP6Dc2EQg1Cdun8b+HVoTUGWKvlDKK10ZyIzmXj7rpjXhirCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T05:39:50.627205Z"},"content_sha256":"c50bba6e5c509da2f6b93116bf1df0c675b7ccf7ef42e1509c3f58c49e30e4a2","schema_version":"1.0","event_id":"sha256:c50bba6e5c509da2f6b93116bf1df0c675b7ccf7ef42e1509c3f58c49e30e4a2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DUELWIQW6CEO36DEKXJXGKORL3/bundle.json","state_url":"https://pith.science/pith/DUELWIQW6CEO36DEKXJXGKORL3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DUELWIQW6CEO36DEKXJXGKORL3/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":"2026-06-03T05:39:50Z","links":{"resolver":"https://pith.science/pith/DUELWIQW6CEO36DEKXJXGKORL3","bundle":"https://pith.science/pith/DUELWIQW6CEO36DEKXJXGKORL3/bundle.json","state":"https://pith.science/pith/DUELWIQW6CEO36DEKXJXGKORL3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DUELWIQW6CEO36DEKXJXGKORL3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:DUELWIQW6CEO36DEKXJXGKORL3","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":"a72a434d067474116e12248f7d342732120ddb0331b83bc08cdef18a1c51e13e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-09-19T08:38:50Z","title_canon_sha256":"acf1459c07b52cc582b3f44618f31d640396472772f3382282f93c104598c0e5"},"schema_version":"1.0","source":{"id":"0909.3569","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.3569","created_at":"2026-05-18T02:11:46Z"},{"alias_kind":"arxiv_version","alias_value":"0909.3569v1","created_at":"2026-05-18T02:11:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.3569","created_at":"2026-05-18T02:11:46Z"},{"alias_kind":"pith_short_12","alias_value":"DUELWIQW6CEO","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_16","alias_value":"DUELWIQW6CEO36DE","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_8","alias_value":"DUELWIQW","created_at":"2026-05-18T12:25:59Z"}],"graph_snapshots":[{"event_id":"sha256:c50bba6e5c509da2f6b93116bf1df0c675b7ccf7ef42e1509c3f58c49e30e4a2","target":"graph","created_at":"2026-05-18T02:11:46Z","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":"Galaxies behind the Milky Way suffer size reduction and dimming due to their obscuration by dust in the disk of our Galaxy. The degree of obscuration is wavelength dependent. It decreases towards longer wavelengths. Compared to the optical, the Near InfraRed (NIR) $K_s$ band extinction is only $\\approx10%$ that of the $B$ band. This makes NIR surveys well suited for galaxy surveys close to the Galactic Plane where extinction is severe.\n  While Galactic obscuration is less prominent in the NIR it is not negligible. In this paper we derive empirical relations to correct isophotal radii and magni","authors_text":"Ihab F. Riad (1), Patrick A. Woudt (1) ((1) Department of Astronomy, Ren\\'ee C. Kraan-Korteweg (1), South Africa), University of Cape Town","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-09-19T08:38:50Z","title":"The Effect of Dust Extinction on the Observed Properties of Galaxies in the Near-Infrared"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.3569","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":"sha256:26e653b1b8ecd68aa931f2c0be1195762f64a362024daa986abebe43ae3b29e2","target":"record","created_at":"2026-05-18T02:11:46Z","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":"a72a434d067474116e12248f7d342732120ddb0331b83bc08cdef18a1c51e13e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-09-19T08:38:50Z","title_canon_sha256":"acf1459c07b52cc582b3f44618f31d640396472772f3382282f93c104598c0e5"},"schema_version":"1.0","source":{"id":"0909.3569","kind":"arxiv","version":1}},"canonical_sha256":"1d08bb2216f088edf86455d37329d15efaa49106b17302322e64a0a1851faabb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1d08bb2216f088edf86455d37329d15efaa49106b17302322e64a0a1851faabb","first_computed_at":"2026-05-18T02:11:46.174227Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:11:46.174227Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"puGUtEBax63Cb5LZAqVqn+l0TKA7VVa02gLwasSFpRiyAl6iciXfxuaFo6xeOUsq3ydccomFeKHZ2oJXbyeSBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:11:46.175037Z","signed_message":"canonical_sha256_bytes"},"source_id":"0909.3569","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:26e653b1b8ecd68aa931f2c0be1195762f64a362024daa986abebe43ae3b29e2","sha256:c50bba6e5c509da2f6b93116bf1df0c675b7ccf7ef42e1509c3f58c49e30e4a2"],"state_sha256":"a0147ea9b92c6e517eff2739d6412371fd3f551e1b26fdef4bf615f64f612be4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5+bVnWFXaePYJMWh/rkHRzcGTWOAzbGjbbdZ2gxFseAiIs2qjm/SbSTYzTObJZgfuEoEgZz8rgBTnoegsUXwBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T05:39:50.629108Z","bundle_sha256":"f9f91f1d46ab3fa71ab576df1f81531401711a28fcc6c076bb96ae36f00d920f"}}