{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:2Y6WHGUNTZNL6WSHEXA6HQUYQH","short_pith_number":"pith:2Y6WHGUN","canonical_record":{"source":{"id":"astro-ph/0205143","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-05-09T20:06:19Z","cross_cats_sorted":[],"title_canon_sha256":"11271288580364401ef6c3f7f8fef67efe3127e5644e275fe2f3b48e276b8151","abstract_canon_sha256":"0c1dee6e557a9092033d49df41b61aa03f2981738a3bf2e2ddc7e41e1d755d6d"},"schema_version":"1.0"},"canonical_sha256":"d63d639a8d9e5abf5a4725c1e3c29881f364d413a4369c46a98d986be65d3c45","source":{"kind":"arxiv","id":"astro-ph/0205143","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0205143","created_at":"2026-07-04T16:29:59Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0205143v1","created_at":"2026-07-04T16:29:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0205143","created_at":"2026-07-04T16:29:59Z"},{"alias_kind":"pith_short_12","alias_value":"2Y6WHGUNTZNL","created_at":"2026-07-04T16:29:59Z"},{"alias_kind":"pith_short_16","alias_value":"2Y6WHGUNTZNL6WSH","created_at":"2026-07-04T16:29:59Z"},{"alias_kind":"pith_short_8","alias_value":"2Y6WHGUN","created_at":"2026-07-04T16:29:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:2Y6WHGUNTZNL6WSHEXA6HQUYQH","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0205143","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-05-09T20:06:19Z","cross_cats_sorted":[],"title_canon_sha256":"11271288580364401ef6c3f7f8fef67efe3127e5644e275fe2f3b48e276b8151","abstract_canon_sha256":"0c1dee6e557a9092033d49df41b61aa03f2981738a3bf2e2ddc7e41e1d755d6d"},"schema_version":"1.0"},"canonical_sha256":"d63d639a8d9e5abf5a4725c1e3c29881f364d413a4369c46a98d986be65d3c45","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:29:59.554144Z","signature_b64":"4C5KaDX8MQEoKaj+4qGK1dUrikWXC/xfsbiu+k7raAMDcxvI0DtHDdYXteUXrGuCsw9tKv3mxt85sv++xd7gAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d63d639a8d9e5abf5a4725c1e3c29881f364d413a4369c46a98d986be65d3c45","last_reissued_at":"2026-07-04T16:29:59.553592Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:29:59.553592Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0205143","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":"2026-07-04T16:29:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0MoF+H7bB9m7/rhYdR2gWnpv4w6rvt1hHP+4ux7w9zExesqtEzIqAnp/Gkt5A/Pp0mnD86PAlMZL9Io0v7rZAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T10:06:16.515649Z"},"content_sha256":"5961a6042661ab0f61497dc56241174c058f256e356012009424b805b89890e9","schema_version":"1.0","event_id":"sha256:5961a6042661ab0f61497dc56241174c058f256e356012009424b805b89890e9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:2Y6WHGUNTZNL6WSHEXA6HQUYQH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Constraint on the Gravitational Lensing Magnification and Age of the Redshift z=6.28 Quasar SDSS 1030+0524","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Renyue Cen (Princeton University), Zoltan Haiman","submitted_at":"2002-05-09T20:06:19Z","abstract_excerpt":"The recent discovery of bright quasars around redshift z=6 suggests that black holes (BHs) with masses in excess of 10^9 Msun have already assembled at a very early stage in the evolution of the universe. An alternative interpretation is that these quasars are powered by less massive BHs, but their fluxes are strongly magnified through gravitational lensing by intervening galaxies. Here we analyze the flux distribution of the Ly alpha emission of the quasar with the highest known redshift, SDSS 1030+0524, at z=6.28. We show that this object could not have been magnified by lensing by more than"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0205143","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0205143/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":"2026-07-04T16:29:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T9PreLbCfxfe9L3UW1iIsPkFxKyoghmDGVCYU+klCengjFgJrEu1DTjJTo0+rYTK00QcQPg70gyOvhd4eGt1BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T10:06:16.516020Z"},"content_sha256":"42400ea109c652793dc383b880d57f817b57410eeeb525f1033dc60924ba7e1f","schema_version":"1.0","event_id":"sha256:42400ea109c652793dc383b880d57f817b57410eeeb525f1033dc60924ba7e1f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2Y6WHGUNTZNL6WSHEXA6HQUYQH/bundle.json","state_url":"https://pith.science/pith/2Y6WHGUNTZNL6WSHEXA6HQUYQH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2Y6WHGUNTZNL6WSHEXA6HQUYQH/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":"2026-07-05T10:06:16Z","links":{"resolver":"https://pith.science/pith/2Y6WHGUNTZNL6WSHEXA6HQUYQH","bundle":"https://pith.science/pith/2Y6WHGUNTZNL6WSHEXA6HQUYQH/bundle.json","state":"https://pith.science/pith/2Y6WHGUNTZNL6WSHEXA6HQUYQH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2Y6WHGUNTZNL6WSHEXA6HQUYQH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:2Y6WHGUNTZNL6WSHEXA6HQUYQH","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":"0c1dee6e557a9092033d49df41b61aa03f2981738a3bf2e2ddc7e41e1d755d6d","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-05-09T20:06:19Z","title_canon_sha256":"11271288580364401ef6c3f7f8fef67efe3127e5644e275fe2f3b48e276b8151"},"schema_version":"1.0","source":{"id":"astro-ph/0205143","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0205143","created_at":"2026-07-04T16:29:59Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0205143v1","created_at":"2026-07-04T16:29:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0205143","created_at":"2026-07-04T16:29:59Z"},{"alias_kind":"pith_short_12","alias_value":"2Y6WHGUNTZNL","created_at":"2026-07-04T16:29:59Z"},{"alias_kind":"pith_short_16","alias_value":"2Y6WHGUNTZNL6WSH","created_at":"2026-07-04T16:29:59Z"},{"alias_kind":"pith_short_8","alias_value":"2Y6WHGUN","created_at":"2026-07-04T16:29:59Z"}],"graph_snapshots":[{"event_id":"sha256:42400ea109c652793dc383b880d57f817b57410eeeb525f1033dc60924ba7e1f","target":"graph","created_at":"2026-07-04T16:29:59Z","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/0205143/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The recent discovery of bright quasars around redshift z=6 suggests that black holes (BHs) with masses in excess of 10^9 Msun have already assembled at a very early stage in the evolution of the universe. An alternative interpretation is that these quasars are powered by less massive BHs, but their fluxes are strongly magnified through gravitational lensing by intervening galaxies. Here we analyze the flux distribution of the Ly alpha emission of the quasar with the highest known redshift, SDSS 1030+0524, at z=6.28. We show that this object could not have been magnified by lensing by more than","authors_text":"Renyue Cen (Princeton University), Zoltan Haiman","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2002-05-09T20:06:19Z","title":"A Constraint on the Gravitational Lensing Magnification and Age of the Redshift z=6.28 Quasar SDSS 1030+0524"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0205143","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":"sha256:5961a6042661ab0f61497dc56241174c058f256e356012009424b805b89890e9","target":"record","created_at":"2026-07-04T16:29:59Z","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":"0c1dee6e557a9092033d49df41b61aa03f2981738a3bf2e2ddc7e41e1d755d6d","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-05-09T20:06:19Z","title_canon_sha256":"11271288580364401ef6c3f7f8fef67efe3127e5644e275fe2f3b48e276b8151"},"schema_version":"1.0","source":{"id":"astro-ph/0205143","kind":"arxiv","version":1}},"canonical_sha256":"d63d639a8d9e5abf5a4725c1e3c29881f364d413a4369c46a98d986be65d3c45","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d63d639a8d9e5abf5a4725c1e3c29881f364d413a4369c46a98d986be65d3c45","first_computed_at":"2026-07-04T16:29:59.553592Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:29:59.553592Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4C5KaDX8MQEoKaj+4qGK1dUrikWXC/xfsbiu+k7raAMDcxvI0DtHDdYXteUXrGuCsw9tKv3mxt85sv++xd7gAg==","signature_status":"signed_v1","signed_at":"2026-07-04T16:29:59.554144Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0205143","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5961a6042661ab0f61497dc56241174c058f256e356012009424b805b89890e9","sha256:42400ea109c652793dc383b880d57f817b57410eeeb525f1033dc60924ba7e1f"],"state_sha256":"5acd707488977cf98cff0eac32c79ebf85698de36e5d8e2f92da60484361c307"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zOs2P8nqiS4LaRu/yBcBvOx2znUfpu7nET1QaVKvzhmzIqhN6QbbYm9KZdwg64Vw50b7mUSCFx13JYxAXQzxAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T10:06:16.517890Z","bundle_sha256":"7b87975cbd32fad8311ad47faec03f87b333f1385eebdd76f24314977ec1ffce"}}