{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:TTFZNHOROOL4XO4I5KS6BDAUDJ","short_pith_number":"pith:TTFZNHOR","canonical_record":{"source":{"id":"1710.09390","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-10-25T18:00:33Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"0f0e4b13d119568a25edd666f99c5a06e01adbfc4dcb71528e4adb0b1fcb9b8b","abstract_canon_sha256":"10819dd8c51c19190f0ed5bc9d621e0648a76f42861b2e513a982408f2428e04"},"schema_version":"1.0"},"canonical_sha256":"9ccb969dd17397cbbb88eaa5e08c141a58a9a0b34b63ba3cdca02ff44c2d3838","source":{"kind":"arxiv","id":"1710.09390","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.09390","created_at":"2026-05-18T00:21:10Z"},{"alias_kind":"arxiv_version","alias_value":"1710.09390v1","created_at":"2026-05-18T00:21:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.09390","created_at":"2026-05-18T00:21:10Z"},{"alias_kind":"pith_short_12","alias_value":"TTFZNHOROOL4","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_16","alias_value":"TTFZNHOROOL4XO4I","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_8","alias_value":"TTFZNHOR","created_at":"2026-05-18T12:31:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:TTFZNHOROOL4XO4I5KS6BDAUDJ","target":"record","payload":{"canonical_record":{"source":{"id":"1710.09390","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-10-25T18:00:33Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"0f0e4b13d119568a25edd666f99c5a06e01adbfc4dcb71528e4adb0b1fcb9b8b","abstract_canon_sha256":"10819dd8c51c19190f0ed5bc9d621e0648a76f42861b2e513a982408f2428e04"},"schema_version":"1.0"},"canonical_sha256":"9ccb969dd17397cbbb88eaa5e08c141a58a9a0b34b63ba3cdca02ff44c2d3838","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:21:10.224059Z","signature_b64":"WWuZbqlkBStOFu7f2uxHiSJWIKorBTQtpjH01XxdQJDlAUiaSOdlI2GO797MTNGm177zIxc3/c2RYrsTKMuqCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9ccb969dd17397cbbb88eaa5e08c141a58a9a0b34b63ba3cdca02ff44c2d3838","last_reissued_at":"2026-05-18T00:21:10.223529Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:21:10.223529Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1710.09390","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":"2026-05-18T00:21:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i4L3llQ1H4VakzfjoyMJalfwmsJ4X71UyqgMP/03ZxG6WfUrq5p0jIwQZ8ep6Sb7vcvq+Fpq+gfOCFWjYo8WAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T02:18:53.070158Z"},"content_sha256":"f4149fef908e17eb121f38f4b0fd6d7ae390c843e43bc33e1029c002b7ec7c29","schema_version":"1.0","event_id":"sha256:f4149fef908e17eb121f38f4b0fd6d7ae390c843e43bc33e1029c002b7ec7c29"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:TTFZNHOROOL4XO4I5KS6BDAUDJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Faint End of the z=5 Quasar Luminosity Function from the CFHTLS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Ian D. McGreer, Linhua Jiang, Xiaohui Fan, Zheng Cai","submitted_at":"2017-10-25T18:00:33Z","abstract_excerpt":"We presents results from a spectroscopic survey of $z\\sim5$ quasars in the CFHT Legacy Survey (CFHTLS). Using both optical color selection and a likelihood method we select 97 candidates over an area of 105 deg$^2$ to a limit of $i_{\\rm AB} < 23.2$, and 7 candidates in the range $23.2 < i_{\\rm AB} < 23.7$ over an area of 18.5 deg$^2$. Spectroscopic observations for 43 candidates were obtained with Gemini, MMT, and LBT, of which 37 are $z>4$ quasars. This sample extends measurements of the quasar luminosity function $\\sim$1.5 mag fainter than our previous work in SDSS Stripe 82. The resulting l"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.09390","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":"2026-05-18T00:21:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SjznreCFKdNnFmoZeNqO1KOFdy2LyX7d+eK+I1R5+ypvnmkp+tn3m9LYdFSsNHpbo7ad2BUmw3OtWnGqSCUMCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T02:18:53.070526Z"},"content_sha256":"207ebb55fa2f12bfcfb60f37741bb01aa9023bb3949680ac3901fb2ce5409f0f","schema_version":"1.0","event_id":"sha256:207ebb55fa2f12bfcfb60f37741bb01aa9023bb3949680ac3901fb2ce5409f0f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TTFZNHOROOL4XO4I5KS6BDAUDJ/bundle.json","state_url":"https://pith.science/pith/TTFZNHOROOL4XO4I5KS6BDAUDJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TTFZNHOROOL4XO4I5KS6BDAUDJ/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":"2026-05-28T02:18:53Z","links":{"resolver":"https://pith.science/pith/TTFZNHOROOL4XO4I5KS6BDAUDJ","bundle":"https://pith.science/pith/TTFZNHOROOL4XO4I5KS6BDAUDJ/bundle.json","state":"https://pith.science/pith/TTFZNHOROOL4XO4I5KS6BDAUDJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TTFZNHOROOL4XO4I5KS6BDAUDJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:TTFZNHOROOL4XO4I5KS6BDAUDJ","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":"10819dd8c51c19190f0ed5bc9d621e0648a76f42861b2e513a982408f2428e04","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-10-25T18:00:33Z","title_canon_sha256":"0f0e4b13d119568a25edd666f99c5a06e01adbfc4dcb71528e4adb0b1fcb9b8b"},"schema_version":"1.0","source":{"id":"1710.09390","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.09390","created_at":"2026-05-18T00:21:10Z"},{"alias_kind":"arxiv_version","alias_value":"1710.09390v1","created_at":"2026-05-18T00:21:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.09390","created_at":"2026-05-18T00:21:10Z"},{"alias_kind":"pith_short_12","alias_value":"TTFZNHOROOL4","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_16","alias_value":"TTFZNHOROOL4XO4I","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_8","alias_value":"TTFZNHOR","created_at":"2026-05-18T12:31:46Z"}],"graph_snapshots":[{"event_id":"sha256:207ebb55fa2f12bfcfb60f37741bb01aa9023bb3949680ac3901fb2ce5409f0f","target":"graph","created_at":"2026-05-18T00:21:10Z","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 presents results from a spectroscopic survey of $z\\sim5$ quasars in the CFHT Legacy Survey (CFHTLS). Using both optical color selection and a likelihood method we select 97 candidates over an area of 105 deg$^2$ to a limit of $i_{\\rm AB} < 23.2$, and 7 candidates in the range $23.2 < i_{\\rm AB} < 23.7$ over an area of 18.5 deg$^2$. Spectroscopic observations for 43 candidates were obtained with Gemini, MMT, and LBT, of which 37 are $z>4$ quasars. This sample extends measurements of the quasar luminosity function $\\sim$1.5 mag fainter than our previous work in SDSS Stripe 82. The resulting l","authors_text":"Ian D. McGreer, Linhua Jiang, Xiaohui Fan, Zheng Cai","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-10-25T18:00:33Z","title":"The Faint End of the z=5 Quasar Luminosity Function from the CFHTLS"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.09390","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:f4149fef908e17eb121f38f4b0fd6d7ae390c843e43bc33e1029c002b7ec7c29","target":"record","created_at":"2026-05-18T00:21:10Z","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":"10819dd8c51c19190f0ed5bc9d621e0648a76f42861b2e513a982408f2428e04","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-10-25T18:00:33Z","title_canon_sha256":"0f0e4b13d119568a25edd666f99c5a06e01adbfc4dcb71528e4adb0b1fcb9b8b"},"schema_version":"1.0","source":{"id":"1710.09390","kind":"arxiv","version":1}},"canonical_sha256":"9ccb969dd17397cbbb88eaa5e08c141a58a9a0b34b63ba3cdca02ff44c2d3838","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9ccb969dd17397cbbb88eaa5e08c141a58a9a0b34b63ba3cdca02ff44c2d3838","first_computed_at":"2026-05-18T00:21:10.223529Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:21:10.223529Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WWuZbqlkBStOFu7f2uxHiSJWIKorBTQtpjH01XxdQJDlAUiaSOdlI2GO797MTNGm177zIxc3/c2RYrsTKMuqCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:21:10.224059Z","signed_message":"canonical_sha256_bytes"},"source_id":"1710.09390","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f4149fef908e17eb121f38f4b0fd6d7ae390c843e43bc33e1029c002b7ec7c29","sha256:207ebb55fa2f12bfcfb60f37741bb01aa9023bb3949680ac3901fb2ce5409f0f"],"state_sha256":"d7c1b4d1e00ac387a79bc5232b8ab0965c1826845e68505b0d3f900b32c95955"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HmBjJUX9j6PDU/L/pOqflqlfVwlIyyVNUo9IeYUdcPyngMBID3D4ApipZ5BUjySEQl9Gm8c8svOcsU1kLafSCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T02:18:53.072806Z","bundle_sha256":"d0b8df8d3983d9e167ed81be67c6a2343b186103dde02da4ac6a7542e89a026a"}}