{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:4JZQTECG4P3DSD24GS26EUM4AC","short_pith_number":"pith:4JZQTECG","canonical_record":{"source":{"id":"1404.3168","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2014-04-11T17:52:34Z","cross_cats_sorted":["astro-ph.CO","stat.AP"],"title_canon_sha256":"03e8bca6b06c7862de56d85c7dca6a22b7993eec04b23d9e8e96c97d7c8f84e8","abstract_canon_sha256":"fab7470d8863d7f69c7913ff620f4ad712dbfd9fb13d40e484fa02eba2916453"},"schema_version":"1.0"},"canonical_sha256":"e273099046e3f6390f5c34b5e2519c00a7f3200a6aeb52d3551f811366dc45e7","source":{"kind":"arxiv","id":"1404.3168","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.3168","created_at":"2026-05-18T02:54:22Z"},{"alias_kind":"arxiv_version","alias_value":"1404.3168v1","created_at":"2026-05-18T02:54:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.3168","created_at":"2026-05-18T02:54:22Z"},{"alias_kind":"pith_short_12","alias_value":"4JZQTECG4P3D","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_16","alias_value":"4JZQTECG4P3DSD24","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_8","alias_value":"4JZQTECG","created_at":"2026-05-18T12:28:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:4JZQTECG4P3DSD24GS26EUM4AC","target":"record","payload":{"canonical_record":{"source":{"id":"1404.3168","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2014-04-11T17:52:34Z","cross_cats_sorted":["astro-ph.CO","stat.AP"],"title_canon_sha256":"03e8bca6b06c7862de56d85c7dca6a22b7993eec04b23d9e8e96c97d7c8f84e8","abstract_canon_sha256":"fab7470d8863d7f69c7913ff620f4ad712dbfd9fb13d40e484fa02eba2916453"},"schema_version":"1.0"},"canonical_sha256":"e273099046e3f6390f5c34b5e2519c00a7f3200a6aeb52d3551f811366dc45e7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:54:22.058862Z","signature_b64":"oPplWBvd50LyipHuWDQQYYn8KIMut0liWRuQHlwohfyKSKHvln5/dBqu+dk4y1YaTGeFJF1roxsW/usDnt84Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e273099046e3f6390f5c34b5e2519c00a7f3200a6aeb52d3551f811366dc45e7","last_reissued_at":"2026-05-18T02:54:22.058483Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:54:22.058483Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1404.3168","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":"2026-05-18T02:54:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gWveR6KC9RBz7hb7qJnBYgPWOLDRHKhNHcAR44dUFA8YB2VsSJwtoeRj89rfJw5M8Ecj975ckP8t3oESd4V1AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:03:53.921301Z"},"content_sha256":"21bc40d9f5987d4e41f244abe0423d17770bb57bf53689bbd3951fb461dd5f30","schema_version":"1.0","event_id":"sha256:21bc40d9f5987d4e41f244abe0423d17770bb57bf53689bbd3951fb461dd5f30"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:4JZQTECG4P3DSD24GS26EUM4AC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Functional Regression for Quasar Spectra","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","stat.AP"],"primary_cat":"stat.ME","authors_text":"Christopher Genovese, Jessi Cisewski, Jing Lei, Larry Wasserman, Mattia Ciollaro, Peter Freeman, Ross O'Connell","submitted_at":"2014-04-11T17:52:34Z","abstract_excerpt":"The Lyman-alpha forest is a portion of the observed light spectrum of distant galactic nuclei which allows us to probe remote regions of the Universe that are otherwise inaccessible. The observed Lyman-alpha forest of a quasar light spectrum can be modeled as a noisy realization of a smooth curve that is affected by a `damping effect' which occurs whenever the light emitted by the quasar travels through regions of the Universe with higher matter concentration. To decode the information conveyed by the Lyman-alpha forest about the matter distribution, we must be able to separate the smooth `con"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.3168","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":"2026-05-18T02:54:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vHMfTSi7OEljBEGVKzEyrj2cUFOkZQteSEkd6589hcBDvF/g9yLTXe/j4Ce1IESV3PiJsB9j7p4WqA5XGSwFDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:03:53.921882Z"},"content_sha256":"2ce055626f73bce80f884d279f95911e593cd9fe67b304866b5cf1178e1ea991","schema_version":"1.0","event_id":"sha256:2ce055626f73bce80f884d279f95911e593cd9fe67b304866b5cf1178e1ea991"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4JZQTECG4P3DSD24GS26EUM4AC/bundle.json","state_url":"https://pith.science/pith/4JZQTECG4P3DSD24GS26EUM4AC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4JZQTECG4P3DSD24GS26EUM4AC/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":"2026-05-25T22:03:53Z","links":{"resolver":"https://pith.science/pith/4JZQTECG4P3DSD24GS26EUM4AC","bundle":"https://pith.science/pith/4JZQTECG4P3DSD24GS26EUM4AC/bundle.json","state":"https://pith.science/pith/4JZQTECG4P3DSD24GS26EUM4AC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4JZQTECG4P3DSD24GS26EUM4AC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:4JZQTECG4P3DSD24GS26EUM4AC","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":"fab7470d8863d7f69c7913ff620f4ad712dbfd9fb13d40e484fa02eba2916453","cross_cats_sorted":["astro-ph.CO","stat.AP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2014-04-11T17:52:34Z","title_canon_sha256":"03e8bca6b06c7862de56d85c7dca6a22b7993eec04b23d9e8e96c97d7c8f84e8"},"schema_version":"1.0","source":{"id":"1404.3168","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.3168","created_at":"2026-05-18T02:54:22Z"},{"alias_kind":"arxiv_version","alias_value":"1404.3168v1","created_at":"2026-05-18T02:54:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.3168","created_at":"2026-05-18T02:54:22Z"},{"alias_kind":"pith_short_12","alias_value":"4JZQTECG4P3D","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_16","alias_value":"4JZQTECG4P3DSD24","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_8","alias_value":"4JZQTECG","created_at":"2026-05-18T12:28:14Z"}],"graph_snapshots":[{"event_id":"sha256:2ce055626f73bce80f884d279f95911e593cd9fe67b304866b5cf1178e1ea991","target":"graph","created_at":"2026-05-18T02:54:22Z","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":"The Lyman-alpha forest is a portion of the observed light spectrum of distant galactic nuclei which allows us to probe remote regions of the Universe that are otherwise inaccessible. The observed Lyman-alpha forest of a quasar light spectrum can be modeled as a noisy realization of a smooth curve that is affected by a `damping effect' which occurs whenever the light emitted by the quasar travels through regions of the Universe with higher matter concentration. To decode the information conveyed by the Lyman-alpha forest about the matter distribution, we must be able to separate the smooth `con","authors_text":"Christopher Genovese, Jessi Cisewski, Jing Lei, Larry Wasserman, Mattia Ciollaro, Peter Freeman, Ross O'Connell","cross_cats":["astro-ph.CO","stat.AP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2014-04-11T17:52:34Z","title":"Functional Regression for Quasar Spectra"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.3168","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":"sha256:21bc40d9f5987d4e41f244abe0423d17770bb57bf53689bbd3951fb461dd5f30","target":"record","created_at":"2026-05-18T02:54:22Z","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":"fab7470d8863d7f69c7913ff620f4ad712dbfd9fb13d40e484fa02eba2916453","cross_cats_sorted":["astro-ph.CO","stat.AP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2014-04-11T17:52:34Z","title_canon_sha256":"03e8bca6b06c7862de56d85c7dca6a22b7993eec04b23d9e8e96c97d7c8f84e8"},"schema_version":"1.0","source":{"id":"1404.3168","kind":"arxiv","version":1}},"canonical_sha256":"e273099046e3f6390f5c34b5e2519c00a7f3200a6aeb52d3551f811366dc45e7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e273099046e3f6390f5c34b5e2519c00a7f3200a6aeb52d3551f811366dc45e7","first_computed_at":"2026-05-18T02:54:22.058483Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:54:22.058483Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oPplWBvd50LyipHuWDQQYYn8KIMut0liWRuQHlwohfyKSKHvln5/dBqu+dk4y1YaTGeFJF1roxsW/usDnt84Aw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:54:22.058862Z","signed_message":"canonical_sha256_bytes"},"source_id":"1404.3168","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:21bc40d9f5987d4e41f244abe0423d17770bb57bf53689bbd3951fb461dd5f30","sha256:2ce055626f73bce80f884d279f95911e593cd9fe67b304866b5cf1178e1ea991"],"state_sha256":"d649e4059a071f30404f3caa0d8313a89a2993a785106c365470f885da7d8fd9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ydW7vVkKOEMfD8erx+65UJPa0tXR8LL1ST7bv2BaP59QeBN/HDJRy2pvBDPYky7oguX/rpWXpRGzrxXov/jJBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T22:03:53.925142Z","bundle_sha256":"e654fa136058c32a41ed1a2b7910c3597178514ff1d889af3e8a9b387fb01ad3"}}