{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:YAQYC74TDYZRBUYFTCE3YZX5BS","short_pith_number":"pith:YAQYC74T","canonical_record":{"source":{"id":"2403.08241","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-03-13T04:55:09Z","cross_cats_sorted":[],"title_canon_sha256":"2b66d5b4ba82545d7154837764a1edaa4e1c1cfad1f5a4bd9d7649a780fd3b34","abstract_canon_sha256":"e85a36d8b0fc078e33a66818a3646007589ff049263106088aec3835e97593a7"},"schema_version":"1.0"},"canonical_sha256":"c021817f931e3310d3059889bc66fd0ca2724b2928b32bad471e8f5f9a69576a","source":{"kind":"arxiv","id":"2403.08241","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2403.08241","created_at":"2026-07-05T09:04:56Z"},{"alias_kind":"arxiv_version","alias_value":"2403.08241v2","created_at":"2026-07-05T09:04:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.08241","created_at":"2026-07-05T09:04:56Z"},{"alias_kind":"pith_short_12","alias_value":"YAQYC74TDYZR","created_at":"2026-07-05T09:04:56Z"},{"alias_kind":"pith_short_16","alias_value":"YAQYC74TDYZRBUYF","created_at":"2026-07-05T09:04:56Z"},{"alias_kind":"pith_short_8","alias_value":"YAQYC74T","created_at":"2026-07-05T09:04:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:YAQYC74TDYZRBUYFTCE3YZX5BS","target":"record","payload":{"canonical_record":{"source":{"id":"2403.08241","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-03-13T04:55:09Z","cross_cats_sorted":[],"title_canon_sha256":"2b66d5b4ba82545d7154837764a1edaa4e1c1cfad1f5a4bd9d7649a780fd3b34","abstract_canon_sha256":"e85a36d8b0fc078e33a66818a3646007589ff049263106088aec3835e97593a7"},"schema_version":"1.0"},"canonical_sha256":"c021817f931e3310d3059889bc66fd0ca2724b2928b32bad471e8f5f9a69576a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:04:56.780101Z","signature_b64":"z1FiN1zCAQknTLckAQSD7JI0tN9MPGdki+LinJ3FBl6O3bGfpEqC6Gs8iD4cVx7dGVI/5y1Y4Vp0ulHjC7PvDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c021817f931e3310d3059889bc66fd0ca2724b2928b32bad471e8f5f9a69576a","last_reissued_at":"2026-07-05T09:04:56.779623Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:04:56.779623Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2403.08241","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T09:04:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NF000GyKrTZy8o3tjgGsx6q4sdkxkGNeEdohAtdJJ+QnZrwPbpWVIOPKM/I1RcJGj/Qs0WGIVGyS5a+sBt//BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T01:19:49.163406Z"},"content_sha256":"dfb3f54a99f6de487f7ab1eaaf6df32d313b81eff022cb247259e6dc76af7b55","schema_version":"1.0","event_id":"sha256:dfb3f54a99f6de487f7ab1eaaf6df32d313b81eff022cb247259e6dc76af7b55"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:YAQYC74TDYZRBUYFTCE3YZX5BS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The 3D Lyman-$\\alpha$ Forest Power Spectrum from eBOSS DR16","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Julien Guy, Nathalie Palanque-Delabrouille, Oliver H. E. Philcox, Patrick McDonald, Roger de Belsunce, Vid Irsic","submitted_at":"2024-03-13T04:55:09Z","abstract_excerpt":"We measure the three-dimensional power spectrum (P3D) of the transmitted flux in the Lyman-a (Ly-a) forest using the complete extended Baryon Oscillation Spectroscopic Survey data release 16 (eBOSS DR16). This sample consists of 205,012 quasar spectra in the redshift range 2 <= z <= 4 at an effective redshift z=2.334. We propose a pair-count spectral estimator in configuration space, weighting each pair by exp(ikr), for wave vector k and pixel pair separation r, effectively measuring the anisotropic power spectrum without the need for fast Fourier transforms. This accounts for the window matri"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.08241","kind":"arxiv","version":2},"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/2403.08241/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":"2026-07-05T09:04:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2LnldJ0pDzED2GPq0dO3qCzxyCtOdkC3NB+ZMxUo6N+3UhikovjhSVGxKKPBJf4EzRWjEMObkaBrKMcROSgLBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T01:19:49.165153Z"},"content_sha256":"34f23c64213d17c0cfab1b2a9672a2677b12935c7f2a6f21ed6e5c81cb5364b2","schema_version":"1.0","event_id":"sha256:34f23c64213d17c0cfab1b2a9672a2677b12935c7f2a6f21ed6e5c81cb5364b2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YAQYC74TDYZRBUYFTCE3YZX5BS/bundle.json","state_url":"https://pith.science/pith/YAQYC74TDYZRBUYFTCE3YZX5BS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YAQYC74TDYZRBUYFTCE3YZX5BS/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":"2026-08-05T01:19:49Z","links":{"resolver":"https://pith.science/pith/YAQYC74TDYZRBUYFTCE3YZX5BS","bundle":"https://pith.science/pith/YAQYC74TDYZRBUYFTCE3YZX5BS/bundle.json","state":"https://pith.science/pith/YAQYC74TDYZRBUYFTCE3YZX5BS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YAQYC74TDYZRBUYFTCE3YZX5BS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:YAQYC74TDYZRBUYFTCE3YZX5BS","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":"e85a36d8b0fc078e33a66818a3646007589ff049263106088aec3835e97593a7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-03-13T04:55:09Z","title_canon_sha256":"2b66d5b4ba82545d7154837764a1edaa4e1c1cfad1f5a4bd9d7649a780fd3b34"},"schema_version":"1.0","source":{"id":"2403.08241","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2403.08241","created_at":"2026-07-05T09:04:56Z"},{"alias_kind":"arxiv_version","alias_value":"2403.08241v2","created_at":"2026-07-05T09:04:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.08241","created_at":"2026-07-05T09:04:56Z"},{"alias_kind":"pith_short_12","alias_value":"YAQYC74TDYZR","created_at":"2026-07-05T09:04:56Z"},{"alias_kind":"pith_short_16","alias_value":"YAQYC74TDYZRBUYF","created_at":"2026-07-05T09:04:56Z"},{"alias_kind":"pith_short_8","alias_value":"YAQYC74T","created_at":"2026-07-05T09:04:56Z"}],"graph_snapshots":[{"event_id":"sha256:34f23c64213d17c0cfab1b2a9672a2677b12935c7f2a6f21ed6e5c81cb5364b2","target":"graph","created_at":"2026-07-05T09:04:56Z","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/2403.08241/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We measure the three-dimensional power spectrum (P3D) of the transmitted flux in the Lyman-a (Ly-a) forest using the complete extended Baryon Oscillation Spectroscopic Survey data release 16 (eBOSS DR16). This sample consists of 205,012 quasar spectra in the redshift range 2 <= z <= 4 at an effective redshift z=2.334. We propose a pair-count spectral estimator in configuration space, weighting each pair by exp(ikr), for wave vector k and pixel pair separation r, effectively measuring the anisotropic power spectrum without the need for fast Fourier transforms. This accounts for the window matri","authors_text":"Julien Guy, Nathalie Palanque-Delabrouille, Oliver H. E. Philcox, Patrick McDonald, Roger de Belsunce, Vid Irsic","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-03-13T04:55:09Z","title":"The 3D Lyman-$\\alpha$ Forest Power Spectrum from eBOSS DR16"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.08241","kind":"arxiv","version":2},"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:dfb3f54a99f6de487f7ab1eaaf6df32d313b81eff022cb247259e6dc76af7b55","target":"record","created_at":"2026-07-05T09:04:56Z","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":"e85a36d8b0fc078e33a66818a3646007589ff049263106088aec3835e97593a7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-03-13T04:55:09Z","title_canon_sha256":"2b66d5b4ba82545d7154837764a1edaa4e1c1cfad1f5a4bd9d7649a780fd3b34"},"schema_version":"1.0","source":{"id":"2403.08241","kind":"arxiv","version":2}},"canonical_sha256":"c021817f931e3310d3059889bc66fd0ca2724b2928b32bad471e8f5f9a69576a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c021817f931e3310d3059889bc66fd0ca2724b2928b32bad471e8f5f9a69576a","first_computed_at":"2026-07-05T09:04:56.779623Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:04:56.779623Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"z1FiN1zCAQknTLckAQSD7JI0tN9MPGdki+LinJ3FBl6O3bGfpEqC6Gs8iD4cVx7dGVI/5y1Y4Vp0ulHjC7PvDg==","signature_status":"signed_v1","signed_at":"2026-07-05T09:04:56.780101Z","signed_message":"canonical_sha256_bytes"},"source_id":"2403.08241","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dfb3f54a99f6de487f7ab1eaaf6df32d313b81eff022cb247259e6dc76af7b55","sha256:34f23c64213d17c0cfab1b2a9672a2677b12935c7f2a6f21ed6e5c81cb5364b2"],"state_sha256":"46def67b9d39ecda474094948edb51b059015919b422d1892cc734d237516b83"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6xCzxHDCezPfFvlPpof232VWHO6fsThA+fpsjuAZlTkYNt7WDIhEkUy9yJnPWxXbhcG0CWKug4FHTUCBNOyRAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T01:19:49.176537Z","bundle_sha256":"93148139d8ff5372b146ed251790090ca4bef292f9f4643711048b553afb792b"}}