{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:3YRRQHXLUWFW2LECQQDOJFFYMZ","short_pith_number":"pith:3YRRQHXL","canonical_record":{"source":{"id":"1203.0009","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-02-29T21:00:06Z","cross_cats_sorted":[],"title_canon_sha256":"6700f3f48c07a29a451dcb1bdc0cf4bd63901acd2290c65d6f9efe92d84f31ba","abstract_canon_sha256":"fd1e0e83191c8207519be88ef1afc0811e79b2c1b9fa36cab7baf771471969ac"},"schema_version":"1.0"},"canonical_sha256":"de23181eeba58b6d2c828406e494b8664e1e419a8f64eee80631a324d1fbd50a","source":{"kind":"arxiv","id":"1203.0009","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.0009","created_at":"2026-05-18T03:49:47Z"},{"alias_kind":"arxiv_version","alias_value":"1203.0009v2","created_at":"2026-05-18T03:49:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.0009","created_at":"2026-05-18T03:49:47Z"},{"alias_kind":"pith_short_12","alias_value":"3YRRQHXLUWFW","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"3YRRQHXLUWFW2LEC","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"3YRRQHXL","created_at":"2026-05-18T12:26:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:3YRRQHXLUWFW2LECQQDOJFFYMZ","target":"record","payload":{"canonical_record":{"source":{"id":"1203.0009","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-02-29T21:00:06Z","cross_cats_sorted":[],"title_canon_sha256":"6700f3f48c07a29a451dcb1bdc0cf4bd63901acd2290c65d6f9efe92d84f31ba","abstract_canon_sha256":"fd1e0e83191c8207519be88ef1afc0811e79b2c1b9fa36cab7baf771471969ac"},"schema_version":"1.0"},"canonical_sha256":"de23181eeba58b6d2c828406e494b8664e1e419a8f64eee80631a324d1fbd50a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:49:47.282977Z","signature_b64":"8KviGjjYO+0YR9WKy8XHhh5s5H+5HO8kjtRWMkto+yW30Xw73pxrPmxwAbFJ4j7W/kZOysfvQJe0ZhyLaqG2Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"de23181eeba58b6d2c828406e494b8664e1e419a8f64eee80631a324d1fbd50a","last_reissued_at":"2026-05-18T03:49:47.281770Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:49:47.281770Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1203.0009","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":"2026-05-18T03:49:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P91WoaDZHEGJzv+3AD2Mc6xLl6L1fdA7tVCM/N6jBXAwzRFOiArHz/TeS6a3cZ6YuCTsLhWj4WoYMfykoy0PDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T10:54:10.329088Z"},"content_sha256":"fd5f7b574a219c201b8b988fecaa34f7c86b1589b9e52f1c571f3634aa53c6e5","schema_version":"1.0","event_id":"sha256:fd5f7b574a219c201b8b988fecaa34f7c86b1589b9e52f1c571f3634aa53c6e5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:3YRRQHXLUWFW2LECQQDOJFFYMZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Satellite abundances around bright isolated galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Simon D. M. White, Wenting Wang","submitted_at":"2012-02-29T21:00:06Z","abstract_excerpt":"We study satellite galaxy abundances in SDSS by counting photometric galaxies around isolated bright primaries. We present results as a function of the luminosity, stellar mass and colour of the satellites, and of the stellar mass and colour of the primaries. For massive primaries the luminosity and stellar mass functions of satellites are similar in shape to those of field galaxies, but for lower mass primaries they are significantly steeper. The steepening is particularly marked for the stellar mass function. Satellite abundance increases strongly with primary stellar mass, approximately in "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.0009","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":"2026-05-18T03:49:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3+1pj4poh6BCBUC5vyKiuRZ/Qk4Zte8doS1We3b1CQ+PFhpOUeHEMZhL4IrRoOXDTOERG0vsckdUvIYJaMYWCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T10:54:10.329450Z"},"content_sha256":"54f2bbbdbfcf2122b30e96e3d93bf43d204add0873ed03a086a00121236dffc0","schema_version":"1.0","event_id":"sha256:54f2bbbdbfcf2122b30e96e3d93bf43d204add0873ed03a086a00121236dffc0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3YRRQHXLUWFW2LECQQDOJFFYMZ/bundle.json","state_url":"https://pith.science/pith/3YRRQHXLUWFW2LECQQDOJFFYMZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3YRRQHXLUWFW2LECQQDOJFFYMZ/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":"2026-06-02T10:54:10Z","links":{"resolver":"https://pith.science/pith/3YRRQHXLUWFW2LECQQDOJFFYMZ","bundle":"https://pith.science/pith/3YRRQHXLUWFW2LECQQDOJFFYMZ/bundle.json","state":"https://pith.science/pith/3YRRQHXLUWFW2LECQQDOJFFYMZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3YRRQHXLUWFW2LECQQDOJFFYMZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:3YRRQHXLUWFW2LECQQDOJFFYMZ","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":"fd1e0e83191c8207519be88ef1afc0811e79b2c1b9fa36cab7baf771471969ac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-02-29T21:00:06Z","title_canon_sha256":"6700f3f48c07a29a451dcb1bdc0cf4bd63901acd2290c65d6f9efe92d84f31ba"},"schema_version":"1.0","source":{"id":"1203.0009","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.0009","created_at":"2026-05-18T03:49:47Z"},{"alias_kind":"arxiv_version","alias_value":"1203.0009v2","created_at":"2026-05-18T03:49:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.0009","created_at":"2026-05-18T03:49:47Z"},{"alias_kind":"pith_short_12","alias_value":"3YRRQHXLUWFW","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"3YRRQHXLUWFW2LEC","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"3YRRQHXL","created_at":"2026-05-18T12:26:53Z"}],"graph_snapshots":[{"event_id":"sha256:54f2bbbdbfcf2122b30e96e3d93bf43d204add0873ed03a086a00121236dffc0","target":"graph","created_at":"2026-05-18T03:49:47Z","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 study satellite galaxy abundances in SDSS by counting photometric galaxies around isolated bright primaries. We present results as a function of the luminosity, stellar mass and colour of the satellites, and of the stellar mass and colour of the primaries. For massive primaries the luminosity and stellar mass functions of satellites are similar in shape to those of field galaxies, but for lower mass primaries they are significantly steeper. The steepening is particularly marked for the stellar mass function. Satellite abundance increases strongly with primary stellar mass, approximately in ","authors_text":"Simon D. M. White, Wenting Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-02-29T21:00:06Z","title":"Satellite abundances around bright isolated galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.0009","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:fd5f7b574a219c201b8b988fecaa34f7c86b1589b9e52f1c571f3634aa53c6e5","target":"record","created_at":"2026-05-18T03:49:47Z","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":"fd1e0e83191c8207519be88ef1afc0811e79b2c1b9fa36cab7baf771471969ac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-02-29T21:00:06Z","title_canon_sha256":"6700f3f48c07a29a451dcb1bdc0cf4bd63901acd2290c65d6f9efe92d84f31ba"},"schema_version":"1.0","source":{"id":"1203.0009","kind":"arxiv","version":2}},"canonical_sha256":"de23181eeba58b6d2c828406e494b8664e1e419a8f64eee80631a324d1fbd50a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"de23181eeba58b6d2c828406e494b8664e1e419a8f64eee80631a324d1fbd50a","first_computed_at":"2026-05-18T03:49:47.281770Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:49:47.281770Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8KviGjjYO+0YR9WKy8XHhh5s5H+5HO8kjtRWMkto+yW30Xw73pxrPmxwAbFJ4j7W/kZOysfvQJe0ZhyLaqG2Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:49:47.282977Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.0009","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fd5f7b574a219c201b8b988fecaa34f7c86b1589b9e52f1c571f3634aa53c6e5","sha256:54f2bbbdbfcf2122b30e96e3d93bf43d204add0873ed03a086a00121236dffc0"],"state_sha256":"af7f49d6f41799621dd4480c63ceac04cea6af8956377a54d425d147698c364f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DvGnBzu52IsRMIGxukux/MMZUWgQenLowgXzoMCrWjh+LM6P0BbNojDQDvFUgciwQ6/9mhEfYxAOOpfothJuAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T10:54:10.331384Z","bundle_sha256":"672c91d9effec349b6f3dc4eee6c2bb98afead621bc19388e73854bcb82ecf11"}}