{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:2CYHI2H2SHRPWY7GMG3YIGDGGF","short_pith_number":"pith:2CYHI2H2","canonical_record":{"source":{"id":"2304.09256","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-04-18T19:40:19Z","cross_cats_sorted":[],"title_canon_sha256":"db439afd036b82e615571b2d11b41e4a1b7b223d3c7a824da73df806725dd8d3","abstract_canon_sha256":"3f4df9b473202ea7a8f9f25a1eb76849752204c0fb7afd9a004247324704cb8c"},"schema_version":"1.0"},"canonical_sha256":"d0b07468fa91e2fb63e661b7841866314d8067545fbb89c0335fd50e6559a210","source":{"kind":"arxiv","id":"2304.09256","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.09256","created_at":"2026-07-05T06:25:27Z"},{"alias_kind":"arxiv_version","alias_value":"2304.09256v1","created_at":"2026-07-05T06:25:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.09256","created_at":"2026-07-05T06:25:27Z"},{"alias_kind":"pith_short_12","alias_value":"2CYHI2H2SHRP","created_at":"2026-07-05T06:25:27Z"},{"alias_kind":"pith_short_16","alias_value":"2CYHI2H2SHRPWY7G","created_at":"2026-07-05T06:25:27Z"},{"alias_kind":"pith_short_8","alias_value":"2CYHI2H2","created_at":"2026-07-05T06:25:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:2CYHI2H2SHRPWY7GMG3YIGDGGF","target":"record","payload":{"canonical_record":{"source":{"id":"2304.09256","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-04-18T19:40:19Z","cross_cats_sorted":[],"title_canon_sha256":"db439afd036b82e615571b2d11b41e4a1b7b223d3c7a824da73df806725dd8d3","abstract_canon_sha256":"3f4df9b473202ea7a8f9f25a1eb76849752204c0fb7afd9a004247324704cb8c"},"schema_version":"1.0"},"canonical_sha256":"d0b07468fa91e2fb63e661b7841866314d8067545fbb89c0335fd50e6559a210","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:25:27.864996Z","signature_b64":"5tbcbnSRJ7FSnVzOlIDzWdRky+PGaV9CxXEfF66DlSqOxKzW5hcgagYXyZmNiyREoPHreNJmRCAAij8gJBwFCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d0b07468fa91e2fb63e661b7841866314d8067545fbb89c0335fd50e6559a210","last_reissued_at":"2026-07-05T06:25:27.864576Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:25:27.864576Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2304.09256","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":"2026-07-05T06:25:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dsnVaSd0keM+6X98FhBqpzbZJ58ZPxX1XjZQp3b6qH6R8fAJEgBkE3dXOmp5DQ7hKmCZt9cixKNofg8XyERcBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T08:57:45.519211Z"},"content_sha256":"b9155e62f784eb39345f10730641966c0f0cd556ed60b53e0ce197056af9c772","schema_version":"1.0","event_id":"sha256:b9155e62f784eb39345f10730641966c0f0cd556ed60b53e0ce197056af9c772"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:2CYHI2H2SHRPWY7GMG3YIGDGGF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detecting and Characterizing Young Quasars. III. The Impact of Gravitational Lensing Magnification","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Anna-Christina Eilers, Charlotte A. Mason, David DePalma, Erica J. Nelson, Frederick B. Davies, Joseph F. Hennawi, Julian B. Mu\\~noz, Minghao Yue, Robert A. Simcoe, Sandro Tacchella, Sirio Belli","submitted_at":"2023-04-18T19:40:19Z","abstract_excerpt":"We test the impact of gravitational lensing on the lifetime estimates of seven high-redshift quasars at redshift $z\\gtrsim6$. The targeted quasars are identified by their small observed proximity zone sizes, which indicate extremely short quasar lifetimes $(t_Q\\lesssim10^5 \\text{ yrs})$. However, these estimates of quasar lifetimes rely on the assumption that the observed luminosities of the quasars are intrinsic and not magnified by gravitational lensing, which would bias the lifetime estimates towards younger ages. In order to test possible effects of gravitational lensing, we obtain high-re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.09256","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/2304.09256/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":"2026-07-05T06:25:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qMTVqhNymYkYkwoIoLjU5EkaX+6K0d7/oXMsh3sihkxW3TT9Hs0hHyUlg7pVn4jNS0cVui+1HhSU3SyKWJHbBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T08:57:45.519753Z"},"content_sha256":"f0bfc6496f12531aeb5a70dc2ae049fc2f86310983ef5a9a55492881f3a31684","schema_version":"1.0","event_id":"sha256:f0bfc6496f12531aeb5a70dc2ae049fc2f86310983ef5a9a55492881f3a31684"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2CYHI2H2SHRPWY7GMG3YIGDGGF/bundle.json","state_url":"https://pith.science/pith/2CYHI2H2SHRPWY7GMG3YIGDGGF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2CYHI2H2SHRPWY7GMG3YIGDGGF/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":"2026-08-12T08:57:45Z","links":{"resolver":"https://pith.science/pith/2CYHI2H2SHRPWY7GMG3YIGDGGF","bundle":"https://pith.science/pith/2CYHI2H2SHRPWY7GMG3YIGDGGF/bundle.json","state":"https://pith.science/pith/2CYHI2H2SHRPWY7GMG3YIGDGGF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2CYHI2H2SHRPWY7GMG3YIGDGGF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:2CYHI2H2SHRPWY7GMG3YIGDGGF","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":"3f4df9b473202ea7a8f9f25a1eb76849752204c0fb7afd9a004247324704cb8c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-04-18T19:40:19Z","title_canon_sha256":"db439afd036b82e615571b2d11b41e4a1b7b223d3c7a824da73df806725dd8d3"},"schema_version":"1.0","source":{"id":"2304.09256","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.09256","created_at":"2026-07-05T06:25:27Z"},{"alias_kind":"arxiv_version","alias_value":"2304.09256v1","created_at":"2026-07-05T06:25:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.09256","created_at":"2026-07-05T06:25:27Z"},{"alias_kind":"pith_short_12","alias_value":"2CYHI2H2SHRP","created_at":"2026-07-05T06:25:27Z"},{"alias_kind":"pith_short_16","alias_value":"2CYHI2H2SHRPWY7G","created_at":"2026-07-05T06:25:27Z"},{"alias_kind":"pith_short_8","alias_value":"2CYHI2H2","created_at":"2026-07-05T06:25:27Z"}],"graph_snapshots":[{"event_id":"sha256:f0bfc6496f12531aeb5a70dc2ae049fc2f86310983ef5a9a55492881f3a31684","target":"graph","created_at":"2026-07-05T06:25:27Z","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/2304.09256/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We test the impact of gravitational lensing on the lifetime estimates of seven high-redshift quasars at redshift $z\\gtrsim6$. The targeted quasars are identified by their small observed proximity zone sizes, which indicate extremely short quasar lifetimes $(t_Q\\lesssim10^5 \\text{ yrs})$. However, these estimates of quasar lifetimes rely on the assumption that the observed luminosities of the quasars are intrinsic and not magnified by gravitational lensing, which would bias the lifetime estimates towards younger ages. In order to test possible effects of gravitational lensing, we obtain high-re","authors_text":"Anna-Christina Eilers, Charlotte A. Mason, David DePalma, Erica J. Nelson, Frederick B. Davies, Joseph F. Hennawi, Julian B. Mu\\~noz, Minghao Yue, Robert A. Simcoe, Sandro Tacchella, Sirio Belli","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-04-18T19:40:19Z","title":"Detecting and Characterizing Young Quasars. III. The Impact of Gravitational Lensing Magnification"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.09256","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:b9155e62f784eb39345f10730641966c0f0cd556ed60b53e0ce197056af9c772","target":"record","created_at":"2026-07-05T06:25:27Z","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":"3f4df9b473202ea7a8f9f25a1eb76849752204c0fb7afd9a004247324704cb8c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-04-18T19:40:19Z","title_canon_sha256":"db439afd036b82e615571b2d11b41e4a1b7b223d3c7a824da73df806725dd8d3"},"schema_version":"1.0","source":{"id":"2304.09256","kind":"arxiv","version":1}},"canonical_sha256":"d0b07468fa91e2fb63e661b7841866314d8067545fbb89c0335fd50e6559a210","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d0b07468fa91e2fb63e661b7841866314d8067545fbb89c0335fd50e6559a210","first_computed_at":"2026-07-05T06:25:27.864576Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:25:27.864576Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5tbcbnSRJ7FSnVzOlIDzWdRky+PGaV9CxXEfF66DlSqOxKzW5hcgagYXyZmNiyREoPHreNJmRCAAij8gJBwFCA==","signature_status":"signed_v1","signed_at":"2026-07-05T06:25:27.864996Z","signed_message":"canonical_sha256_bytes"},"source_id":"2304.09256","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b9155e62f784eb39345f10730641966c0f0cd556ed60b53e0ce197056af9c772","sha256:f0bfc6496f12531aeb5a70dc2ae049fc2f86310983ef5a9a55492881f3a31684"],"state_sha256":"fd548cd23039776e25cb1502374c73090284840c9c496e2443f9b96599f29ca9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2kuG4kvPELovRx0nKNta3nYSIcvEWvdZrOIJKOmGJY9z5766NT4sx+S/nzCGRmm8FpG6i/tzF2UHJGGSFboLBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T08:57:45.524616Z","bundle_sha256":"64d9048d70b777adccd18d1313ff69c2654afd63fd711c1029cc7afd0f71cc1e"}}