{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2004:3JEGDOHXGT3HQXUHUVTAFPVLGK","short_pith_number":"pith:3JEGDOHX","canonical_record":{"source":{"id":"astro-ph/0410164","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2004-10-07T19:48:03Z","cross_cats_sorted":[],"title_canon_sha256":"9dfc9bb65e551eff286694ac788b946b2d1491b104fa7037650df4bb8df23f62","abstract_canon_sha256":"5013fa57c62157708703fbba43473d41cae06d62973338f0fde9194bed7a0a6b"},"schema_version":"1.0"},"canonical_sha256":"da4861b8f734f6785e87a56602beab32ad45ee089943710604287c418a0ab857","source":{"kind":"arxiv","id":"astro-ph/0410164","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0410164","created_at":"2026-07-04T15:23:01Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0410164v2","created_at":"2026-07-04T15:23:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0410164","created_at":"2026-07-04T15:23:01Z"},{"alias_kind":"pith_short_12","alias_value":"3JEGDOHXGT3H","created_at":"2026-07-04T15:23:01Z"},{"alias_kind":"pith_short_16","alias_value":"3JEGDOHXGT3HQXUH","created_at":"2026-07-04T15:23:01Z"},{"alias_kind":"pith_short_8","alias_value":"3JEGDOHX","created_at":"2026-07-04T15:23:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2004:3JEGDOHXGT3HQXUHUVTAFPVLGK","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0410164","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2004-10-07T19:48:03Z","cross_cats_sorted":[],"title_canon_sha256":"9dfc9bb65e551eff286694ac788b946b2d1491b104fa7037650df4bb8df23f62","abstract_canon_sha256":"5013fa57c62157708703fbba43473d41cae06d62973338f0fde9194bed7a0a6b"},"schema_version":"1.0"},"canonical_sha256":"da4861b8f734f6785e87a56602beab32ad45ee089943710604287c418a0ab857","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:23:01.085194Z","signature_b64":"XbGBCFCqETh/DWv78DFaw+Q3sxrN0ptoQ8nRVKjJUAra5VR93mCkLJi11Gu0grjhyqPjgEUVqtnEJ/V45+rZCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"da4861b8f734f6785e87a56602beab32ad45ee089943710604287c418a0ab857","last_reissued_at":"2026-07-04T15:23:01.084848Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:23:01.084848Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0410164","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":"2026-07-04T15:23:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ln+Bcv6DMowDndRTJlLNRu9C5VMlzIhJqCIJYPzkxQgmSUH2q2ywBxbnNeB/KA17szIhLmKLCCecP3C73cW5Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T17:37:40.081291Z"},"content_sha256":"0d6c3c36b41dcc392283a11782305a457dc850327c5565591c759d1612266635","schema_version":"1.0","event_id":"sha256:0d6c3c36b41dcc392283a11782305a457dc850327c5565591c759d1612266635"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2004:3JEGDOHXGT3HQXUHUVTAFPVLGK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The properties and luminosity function of extremely low luminosity galaxies","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"David J. Schlegel, J. Brinkmann, Jon Loveday, Masataka Fukugita, Michael A. Strauss, Michael R. Blanton, Robert H. Lupton","submitted_at":"2004-10-07T19:48:03Z","abstract_excerpt":"We examine a sample of low redshift (10 < d < 150 Mpc) galaxies including galaxies with r-band absolute magnitudes as faint as -12.5 (for h=1), selected from the Sloan Digital Sky Survey Data Release 2 (SDSS). The sample is unique in containing galaxies of extremely low luminosities in a wide range of environments, selected with uniform and well-understood criteria. We present the luminosity function as well as the broad-band properties of low luminosity galaxies in this sample. A Schechter function is an insufficient parameterization of the r-band luminosity function; there is an upturn in th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0410164","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0410164/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":"2026-07-04T15:23:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Xi+c+hly9mdUPK9EthzfFUjgk1PWNUuTEC5hAZs+/5PWI0sq2iJsS4rLm39y1OgP68OidXR8f0OQMHXY2DtyAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T17:37:40.081890Z"},"content_sha256":"c565c98174aff9168df166fcbb539b413733ee67b00acde2703578b516eae6c3","schema_version":"1.0","event_id":"sha256:c565c98174aff9168df166fcbb539b413733ee67b00acde2703578b516eae6c3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3JEGDOHXGT3HQXUHUVTAFPVLGK/bundle.json","state_url":"https://pith.science/pith/3JEGDOHXGT3HQXUHUVTAFPVLGK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3JEGDOHXGT3HQXUHUVTAFPVLGK/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":"2026-08-17T17:37:40Z","links":{"resolver":"https://pith.science/pith/3JEGDOHXGT3HQXUHUVTAFPVLGK","bundle":"https://pith.science/pith/3JEGDOHXGT3HQXUHUVTAFPVLGK/bundle.json","state":"https://pith.science/pith/3JEGDOHXGT3HQXUHUVTAFPVLGK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3JEGDOHXGT3HQXUHUVTAFPVLGK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:3JEGDOHXGT3HQXUHUVTAFPVLGK","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":"5013fa57c62157708703fbba43473d41cae06d62973338f0fde9194bed7a0a6b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2004-10-07T19:48:03Z","title_canon_sha256":"9dfc9bb65e551eff286694ac788b946b2d1491b104fa7037650df4bb8df23f62"},"schema_version":"1.0","source":{"id":"astro-ph/0410164","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0410164","created_at":"2026-07-04T15:23:01Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0410164v2","created_at":"2026-07-04T15:23:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0410164","created_at":"2026-07-04T15:23:01Z"},{"alias_kind":"pith_short_12","alias_value":"3JEGDOHXGT3H","created_at":"2026-07-04T15:23:01Z"},{"alias_kind":"pith_short_16","alias_value":"3JEGDOHXGT3HQXUH","created_at":"2026-07-04T15:23:01Z"},{"alias_kind":"pith_short_8","alias_value":"3JEGDOHX","created_at":"2026-07-04T15:23:01Z"}],"graph_snapshots":[{"event_id":"sha256:c565c98174aff9168df166fcbb539b413733ee67b00acde2703578b516eae6c3","target":"graph","created_at":"2026-07-04T15:23:01Z","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/astro-ph/0410164/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We examine a sample of low redshift (10 < d < 150 Mpc) galaxies including galaxies with r-band absolute magnitudes as faint as -12.5 (for h=1), selected from the Sloan Digital Sky Survey Data Release 2 (SDSS). The sample is unique in containing galaxies of extremely low luminosities in a wide range of environments, selected with uniform and well-understood criteria. We present the luminosity function as well as the broad-band properties of low luminosity galaxies in this sample. A Schechter function is an insufficient parameterization of the r-band luminosity function; there is an upturn in th","authors_text":"David J. Schlegel, J. Brinkmann, Jon Loveday, Masataka Fukugita, Michael A. Strauss, Michael R. Blanton, Robert H. Lupton","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2004-10-07T19:48:03Z","title":"The properties and luminosity function of extremely low luminosity galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0410164","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":"sha256:0d6c3c36b41dcc392283a11782305a457dc850327c5565591c759d1612266635","target":"record","created_at":"2026-07-04T15:23:01Z","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":"5013fa57c62157708703fbba43473d41cae06d62973338f0fde9194bed7a0a6b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2004-10-07T19:48:03Z","title_canon_sha256":"9dfc9bb65e551eff286694ac788b946b2d1491b104fa7037650df4bb8df23f62"},"schema_version":"1.0","source":{"id":"astro-ph/0410164","kind":"arxiv","version":2}},"canonical_sha256":"da4861b8f734f6785e87a56602beab32ad45ee089943710604287c418a0ab857","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"da4861b8f734f6785e87a56602beab32ad45ee089943710604287c418a0ab857","first_computed_at":"2026-07-04T15:23:01.084848Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:23:01.084848Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XbGBCFCqETh/DWv78DFaw+Q3sxrN0ptoQ8nRVKjJUAra5VR93mCkLJi11Gu0grjhyqPjgEUVqtnEJ/V45+rZCQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:23:01.085194Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0410164","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0d6c3c36b41dcc392283a11782305a457dc850327c5565591c759d1612266635","sha256:c565c98174aff9168df166fcbb539b413733ee67b00acde2703578b516eae6c3"],"state_sha256":"87861ff2dc99bfa44c445ad5b22a4e12fc68b42d72d18b516df02d37e511333a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mod0FgUHDiZDiNpPmS/oaUNNLlsvag9CT75a9cpry6aYECtpfFa61DNrapIjtFGcVBnYm7iXe0aAjqQ0PE6nDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T17:37:40.085815Z","bundle_sha256":"443786925c3296d3344d1a7a68e8d4b904523ac62ad24e30b07a036364038043"}}