{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:BKPJKO6RZ65NCMQNYAZQUPIIV5","short_pith_number":"pith:BKPJKO6R","canonical_record":{"source":{"id":"astro-ph/0012085","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-12-05T00:02:09Z","cross_cats_sorted":[],"title_canon_sha256":"0e38c46d6802732216200626a19787602c20e13185df1243ba4291e29a18ce6d","abstract_canon_sha256":"c0ca56daa06e61a16d8baac6e1f966fee35837354fdf55e4b8854dbcb3588758"},"schema_version":"1.0"},"canonical_sha256":"0a9e953bd1cfbad1320dc0330a3d08af4afd1c9f805c745182f508d8d5781588","source":{"kind":"arxiv","id":"astro-ph/0012085","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0012085","created_at":"2026-05-18T01:40:45Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0012085v2","created_at":"2026-05-18T01:40:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0012085","created_at":"2026-05-18T01:40:45Z"},{"alias_kind":"pith_short_12","alias_value":"BKPJKO6RZ65N","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"BKPJKO6RZ65NCMQN","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"BKPJKO6R","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:BKPJKO6RZ65NCMQNYAZQUPIIV5","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0012085","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-12-05T00:02:09Z","cross_cats_sorted":[],"title_canon_sha256":"0e38c46d6802732216200626a19787602c20e13185df1243ba4291e29a18ce6d","abstract_canon_sha256":"c0ca56daa06e61a16d8baac6e1f966fee35837354fdf55e4b8854dbcb3588758"},"schema_version":"1.0"},"canonical_sha256":"0a9e953bd1cfbad1320dc0330a3d08af4afd1c9f805c745182f508d8d5781588","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:40:45.215108Z","signature_b64":"qiidV0D2dFx9PcIaOFLmQxy7wMiWwhFivfywy9iLlgguujJeTUuNS5Y0Jx+QAWG9WJZtZW7acK/+wEyIWA5lDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0a9e953bd1cfbad1320dc0330a3d08af4afd1c9f805c745182f508d8d5781588","last_reissued_at":"2026-05-18T01:40:45.214419Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:40:45.214419Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0012085","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":"2026-05-18T01:40:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NiFcVcyhxt5ccFlS2WdatlqhJNIB3Tqw28pgW2AXxfiRixYdebzCkWsqVzTkKbdmYNd8apUCG9bligXq+KXzCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T14:19:44.633271Z"},"content_sha256":"d7e72db2ab7b377f3a6017407e58ce33144cb29c57eebeffceddac9cdf090773","schema_version":"1.0","event_id":"sha256:d7e72db2ab7b377f3a6017407e58ce33144cb29c57eebeffceddac9cdf090773"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:BKPJKO6RZ65NCMQNYAZQUPIIV5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Luminosity Function of Galaxies in SDSS Commissioning Data","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"et al, M. R. Blanton, SDSS Collaboration","submitted_at":"2000-12-05T00:02:09Z","abstract_excerpt":"During commissioning observations, the Sloan Digital Sky Survey (SDSS) has produced one of the largest existing galaxy redshift samples selected from CCD images. Using 11,275 galaxies complete to r^* = 17.6 over 140 square degrees, we compute the luminosity function of galaxies in the r^* band over a range -23 < M < -16 (for h=1). The result is well-described by a Schechter function with parameters phi_* = 0.0146 +/- 0.0012 h^3 Mpc^{-3}, M_* = -20.83 +/- 0.03, and alpha = -1.20 +/- 0.03. The implied luminosity density in r^* is j = (2.6 +/- 0.3) x 10^8 h L_sun Mpc^{-3}. The surface brightness "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0012085","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":""},"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":"2026-05-18T01:40:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rcuoDa2OC7CpDjz3VrhIvNDhBKQ1BK3PYDo64jfmnUefyaq5IRKnjnp4u6dzrGXhRDxK2LB/aZCDuCMSWG9zBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T14:19:44.633639Z"},"content_sha256":"e21e6aad2ed7b057eafe3fd666aef76d4b08ed9da894e641a1751889ba37ebdc","schema_version":"1.0","event_id":"sha256:e21e6aad2ed7b057eafe3fd666aef76d4b08ed9da894e641a1751889ba37ebdc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BKPJKO6RZ65NCMQNYAZQUPIIV5/bundle.json","state_url":"https://pith.science/pith/BKPJKO6RZ65NCMQNYAZQUPIIV5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BKPJKO6RZ65NCMQNYAZQUPIIV5/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":"2026-06-11T14:19:44Z","links":{"resolver":"https://pith.science/pith/BKPJKO6RZ65NCMQNYAZQUPIIV5","bundle":"https://pith.science/pith/BKPJKO6RZ65NCMQNYAZQUPIIV5/bundle.json","state":"https://pith.science/pith/BKPJKO6RZ65NCMQNYAZQUPIIV5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BKPJKO6RZ65NCMQNYAZQUPIIV5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:BKPJKO6RZ65NCMQNYAZQUPIIV5","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":"c0ca56daa06e61a16d8baac6e1f966fee35837354fdf55e4b8854dbcb3588758","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-12-05T00:02:09Z","title_canon_sha256":"0e38c46d6802732216200626a19787602c20e13185df1243ba4291e29a18ce6d"},"schema_version":"1.0","source":{"id":"astro-ph/0012085","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0012085","created_at":"2026-05-18T01:40:45Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0012085v2","created_at":"2026-05-18T01:40:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0012085","created_at":"2026-05-18T01:40:45Z"},{"alias_kind":"pith_short_12","alias_value":"BKPJKO6RZ65N","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"BKPJKO6RZ65NCMQN","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"BKPJKO6R","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:e21e6aad2ed7b057eafe3fd666aef76d4b08ed9da894e641a1751889ba37ebdc","target":"graph","created_at":"2026-05-18T01:40:45Z","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":"During commissioning observations, the Sloan Digital Sky Survey (SDSS) has produced one of the largest existing galaxy redshift samples selected from CCD images. Using 11,275 galaxies complete to r^* = 17.6 over 140 square degrees, we compute the luminosity function of galaxies in the r^* band over a range -23 < M < -16 (for h=1). The result is well-described by a Schechter function with parameters phi_* = 0.0146 +/- 0.0012 h^3 Mpc^{-3}, M_* = -20.83 +/- 0.03, and alpha = -1.20 +/- 0.03. The implied luminosity density in r^* is j = (2.6 +/- 0.3) x 10^8 h L_sun Mpc^{-3}. The surface brightness ","authors_text":"et al, M. R. Blanton, SDSS Collaboration","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2000-12-05T00:02:09Z","title":"The Luminosity Function of Galaxies in SDSS Commissioning Data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0012085","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:d7e72db2ab7b377f3a6017407e58ce33144cb29c57eebeffceddac9cdf090773","target":"record","created_at":"2026-05-18T01:40:45Z","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":"c0ca56daa06e61a16d8baac6e1f966fee35837354fdf55e4b8854dbcb3588758","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-12-05T00:02:09Z","title_canon_sha256":"0e38c46d6802732216200626a19787602c20e13185df1243ba4291e29a18ce6d"},"schema_version":"1.0","source":{"id":"astro-ph/0012085","kind":"arxiv","version":2}},"canonical_sha256":"0a9e953bd1cfbad1320dc0330a3d08af4afd1c9f805c745182f508d8d5781588","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0a9e953bd1cfbad1320dc0330a3d08af4afd1c9f805c745182f508d8d5781588","first_computed_at":"2026-05-18T01:40:45.214419Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:45.214419Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qiidV0D2dFx9PcIaOFLmQxy7wMiWwhFivfywy9iLlgguujJeTUuNS5Y0Jx+QAWG9WJZtZW7acK/+wEyIWA5lDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:45.215108Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0012085","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d7e72db2ab7b377f3a6017407e58ce33144cb29c57eebeffceddac9cdf090773","sha256:e21e6aad2ed7b057eafe3fd666aef76d4b08ed9da894e641a1751889ba37ebdc"],"state_sha256":"a3cbff0126af932b13bfadceea46d5d8a524b4c7a3f8a6e951d2e4f29caec032"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"umRNeq+SrCi6v3PIa3nTViC4G1GMm8tXtxXBOqpDRaeGX590WL8Mv2LG4/d2gP4cYJt4+Pt0Ta7x3NhSDNTcCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T14:19:44.635738Z","bundle_sha256":"e838a23a4106660be7a64b4054015aafa4acddba65595a82340a1e348599796e"}}