{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:NQDYA2W7M5IJQYTVTW4CK7IG72","short_pith_number":"pith:NQDYA2W7","canonical_record":{"source":{"id":"astro-ph/0609169","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-09-06T20:00:03Z","cross_cats_sorted":[],"title_canon_sha256":"236200906179b4f827a31c9ba6a983a84809d7233334bf182e3bd753db50c766","abstract_canon_sha256":"3fbad2ce1fdfe814e1e74c550b041305ace57c941ffa874f9a661639d4d7dd76"},"schema_version":"1.0"},"canonical_sha256":"6c07806adf67509862759db8257d06feb7b75505674d734e7b74c9a1988dc332","source":{"kind":"arxiv","id":"astro-ph/0609169","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0609169","created_at":"2026-05-18T04:36:20Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0609169v1","created_at":"2026-05-18T04:36:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0609169","created_at":"2026-05-18T04:36:20Z"},{"alias_kind":"pith_short_12","alias_value":"NQDYA2W7M5IJ","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"NQDYA2W7M5IJQYTV","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"NQDYA2W7","created_at":"2026-05-18T12:25:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:NQDYA2W7M5IJQYTVTW4CK7IG72","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0609169","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-09-06T20:00:03Z","cross_cats_sorted":[],"title_canon_sha256":"236200906179b4f827a31c9ba6a983a84809d7233334bf182e3bd753db50c766","abstract_canon_sha256":"3fbad2ce1fdfe814e1e74c550b041305ace57c941ffa874f9a661639d4d7dd76"},"schema_version":"1.0"},"canonical_sha256":"6c07806adf67509862759db8257d06feb7b75505674d734e7b74c9a1988dc332","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:36:20.970430Z","signature_b64":"rUEovKtiPNIokctnG1Ood3QCLIGxnka9dSCH1wGK3wQ9q+XyMBKd7PavavFPVd90yZes175rDAkDc6XjyXftBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6c07806adf67509862759db8257d06feb7b75505674d734e7b74c9a1988dc332","last_reissued_at":"2026-05-18T04:36:20.969979Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:36:20.969979Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0609169","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":"2026-05-18T04:36:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q1KFiDLF00THRlKhLIB+zuF7TqngTB8lKM7/aCvAznEe5aXvtiKpq85CUnaY8jvfnQDqfFHxNQQ8o0JOEATgDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T08:27:37.305382Z"},"content_sha256":"4cf36aa1da72d3b043597acfbadfcd4958c32e55b0955aac5ab18c54d38182b1","schema_version":"1.0","event_id":"sha256:4cf36aa1da72d3b043597acfbadfcd4958c32e55b0955aac5ab18c54d38182b1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:NQDYA2W7M5IJQYTVTW4CK7IG72","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Evolution of the K-band Galaxy Cluster Luminosity Function and Scaling Relations","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"2), (2) Pontificia Universidad Catolica de Chile, (3) University of Illinois, (4) University of Florida, (5) University of California, 6) ((1) Princeton University, (6) LLNL), Anthony H. Gonzalez (4), Davis, Joseph J. Mohr (3), S. Adam Stanford (5, Yen-Ting Lin (1","submitted_at":"2006-09-06T20:00:03Z","abstract_excerpt":"We study the evolution of two fundamental properties of galaxy clusters: the luminosity function (LF) and the scaling relations between the total galaxy number N (or luminosity) and cluster mass M. Using a sample of 27 clusters (0<z<0.9) with new near-IR observations and mass estimates derived from X-ray temperatures, in conjunction with data from the literature, we construct the largest sample for such studies to date. The evolution of the characteristic luminosity of the LF can be described by a passively evolving population formed in a single burst at z=1.5-2. Under the assumption that the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0609169","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":"2026-05-18T04:36:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CpY6twc1zQsxn+OSmi9U1YDQtf1rpoSkPQX2gOpMCSaMKTlGAjAY5bw8XbpTDkw1DvY0WdIYcAsbj4Hr0wr5DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T08:27:37.305740Z"},"content_sha256":"d2bc48036b95a9b7d3a1efde65c0bb1493d122fe747c60da0287ca8d5e064eb5","schema_version":"1.0","event_id":"sha256:d2bc48036b95a9b7d3a1efde65c0bb1493d122fe747c60da0287ca8d5e064eb5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NQDYA2W7M5IJQYTVTW4CK7IG72/bundle.json","state_url":"https://pith.science/pith/NQDYA2W7M5IJQYTVTW4CK7IG72/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NQDYA2W7M5IJQYTVTW4CK7IG72/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":"2026-05-28T08:27:37Z","links":{"resolver":"https://pith.science/pith/NQDYA2W7M5IJQYTVTW4CK7IG72","bundle":"https://pith.science/pith/NQDYA2W7M5IJQYTVTW4CK7IG72/bundle.json","state":"https://pith.science/pith/NQDYA2W7M5IJQYTVTW4CK7IG72/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NQDYA2W7M5IJQYTVTW4CK7IG72/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:NQDYA2W7M5IJQYTVTW4CK7IG72","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":"3fbad2ce1fdfe814e1e74c550b041305ace57c941ffa874f9a661639d4d7dd76","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-09-06T20:00:03Z","title_canon_sha256":"236200906179b4f827a31c9ba6a983a84809d7233334bf182e3bd753db50c766"},"schema_version":"1.0","source":{"id":"astro-ph/0609169","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0609169","created_at":"2026-05-18T04:36:20Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0609169v1","created_at":"2026-05-18T04:36:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0609169","created_at":"2026-05-18T04:36:20Z"},{"alias_kind":"pith_short_12","alias_value":"NQDYA2W7M5IJ","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"NQDYA2W7M5IJQYTV","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"NQDYA2W7","created_at":"2026-05-18T12:25:54Z"}],"graph_snapshots":[{"event_id":"sha256:d2bc48036b95a9b7d3a1efde65c0bb1493d122fe747c60da0287ca8d5e064eb5","target":"graph","created_at":"2026-05-18T04:36:20Z","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 the evolution of two fundamental properties of galaxy clusters: the luminosity function (LF) and the scaling relations between the total galaxy number N (or luminosity) and cluster mass M. Using a sample of 27 clusters (0<z<0.9) with new near-IR observations and mass estimates derived from X-ray temperatures, in conjunction with data from the literature, we construct the largest sample for such studies to date. The evolution of the characteristic luminosity of the LF can be described by a passively evolving population formed in a single burst at z=1.5-2. Under the assumption that the ","authors_text":"2), (2) Pontificia Universidad Catolica de Chile, (3) University of Illinois, (4) University of Florida, (5) University of California, 6) ((1) Princeton University, (6) LLNL), Anthony H. Gonzalez (4), Davis, Joseph J. Mohr (3), S. Adam Stanford (5, Yen-Ting Lin (1","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-09-06T20:00:03Z","title":"Evolution of the K-band Galaxy Cluster Luminosity Function and Scaling Relations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0609169","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":"sha256:4cf36aa1da72d3b043597acfbadfcd4958c32e55b0955aac5ab18c54d38182b1","target":"record","created_at":"2026-05-18T04:36:20Z","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":"3fbad2ce1fdfe814e1e74c550b041305ace57c941ffa874f9a661639d4d7dd76","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-09-06T20:00:03Z","title_canon_sha256":"236200906179b4f827a31c9ba6a983a84809d7233334bf182e3bd753db50c766"},"schema_version":"1.0","source":{"id":"astro-ph/0609169","kind":"arxiv","version":1}},"canonical_sha256":"6c07806adf67509862759db8257d06feb7b75505674d734e7b74c9a1988dc332","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6c07806adf67509862759db8257d06feb7b75505674d734e7b74c9a1988dc332","first_computed_at":"2026-05-18T04:36:20.969979Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:36:20.969979Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rUEovKtiPNIokctnG1Ood3QCLIGxnka9dSCH1wGK3wQ9q+XyMBKd7PavavFPVd90yZes175rDAkDc6XjyXftBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:36:20.970430Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0609169","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4cf36aa1da72d3b043597acfbadfcd4958c32e55b0955aac5ab18c54d38182b1","sha256:d2bc48036b95a9b7d3a1efde65c0bb1493d122fe747c60da0287ca8d5e064eb5"],"state_sha256":"4787021c9f2d86486ea8ce77a62decb7b3e25114600e2b42c53a2f3524f0bd81"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dMTVR7gHc9g9e/YqlNlLeI0jc7V8Hz877gm+pKl7xH3mAYVU84MvpVbBqBmX8vmKkZa1jRUbSvX8FLAJlDW4Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T08:27:37.307748Z","bundle_sha256":"3a3b2b09b7a8412b769df0003602a9cd1a997ff6f0c49ab638a6ff1f6d9deda0"}}