{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:WPJ4FH4CC2XLKELUKDY3VN5IHD","short_pith_number":"pith:WPJ4FH4C","canonical_record":{"source":{"id":"2302.07484","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-02-15T06:07:57Z","cross_cats_sorted":[],"title_canon_sha256":"3b2bdd9a3fdd99691982f01c07c34d764e6b12b946a93495e20f2fd6d41f333d","abstract_canon_sha256":"d3b5f7185c5d3f7bb5403bd3af944a2b24fa7592f0c8f61b057c4f1a5c1a4b95"},"schema_version":"1.0"},"canonical_sha256":"b3d3c29f8216aeb5117450f1bab7a838e85ce8e275ff746c9cabf3b64b17e08b","source":{"kind":"arxiv","id":"2302.07484","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.07484","created_at":"2026-07-05T06:57:21Z"},{"alias_kind":"arxiv_version","alias_value":"2302.07484v3","created_at":"2026-07-05T06:57:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.07484","created_at":"2026-07-05T06:57:21Z"},{"alias_kind":"pith_short_12","alias_value":"WPJ4FH4CC2XL","created_at":"2026-07-05T06:57:21Z"},{"alias_kind":"pith_short_16","alias_value":"WPJ4FH4CC2XLKELU","created_at":"2026-07-05T06:57:21Z"},{"alias_kind":"pith_short_8","alias_value":"WPJ4FH4C","created_at":"2026-07-05T06:57:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:WPJ4FH4CC2XLKELUKDY3VN5IHD","target":"record","payload":{"canonical_record":{"source":{"id":"2302.07484","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-02-15T06:07:57Z","cross_cats_sorted":[],"title_canon_sha256":"3b2bdd9a3fdd99691982f01c07c34d764e6b12b946a93495e20f2fd6d41f333d","abstract_canon_sha256":"d3b5f7185c5d3f7bb5403bd3af944a2b24fa7592f0c8f61b057c4f1a5c1a4b95"},"schema_version":"1.0"},"canonical_sha256":"b3d3c29f8216aeb5117450f1bab7a838e85ce8e275ff746c9cabf3b64b17e08b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:57:21.286651Z","signature_b64":"nQ/IONC2H0INd5OJZWgafWBXcUzVnJ0p6rK3MgX4iJTtfup/TJpgn5qCB597yatr+r8/94+GEgMZGMIeEezxBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b3d3c29f8216aeb5117450f1bab7a838e85ce8e275ff746c9cabf3b64b17e08b","last_reissued_at":"2026-07-05T06:57:21.286156Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:57:21.286156Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2302.07484","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T06:57:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WfO7Wni+zgFBHvyHvk4y2/Gz98KJcqmd3CUBu+v1+cqL2ZGZ+IjEMB8tuY7z3UHzdhs5uMmxo5ooAWw7yGUvCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T20:11:10.555312Z"},"content_sha256":"ad45a5dee58b2a9f3c7b880899a0161c0902718cc627c32862bea418da1d57e5","schema_version":"1.0","event_id":"sha256:ad45a5dee58b2a9f3c7b880899a0161c0902718cc627c32862bea418da1d57e5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:WPJ4FH4CC2XLKELUKDY3VN5IHD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Measurement of the matter-radiation equality scale using the extended Baryon Oscillation Spectroscopic Survey Quasar Sample","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Benedict Bahr-Kalus, David Parkinson, Eva-Maria Mueller","submitted_at":"2023-02-15T06:07:57Z","abstract_excerpt":"The position of the peak of the matter power spectrum, the so-called turnover scale, is set by the horizon size at the epoch of matter-radiation equality. It can easily be predicted in terms of the physics of the Universe in the relativistic era, and so can be used as a standard ruler, independent of other features present in the matter power spectrum, such as baryon acoustic oscillations (BAO). We use the distribution of quasars measured by the extended Baryon Oscillation Spectroscopic Survey (eBOSS) to determine the turnover scale in a model-independent fashion statistically. We avoid modell"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.07484","kind":"arxiv","version":3},"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/2302.07484/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":"2026-07-05T06:57:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9N8LZh8IB0ABwHbEmcnS/s6/lehz3nBbMDJSGVCnIbhCMHieSvKdHNCY5lCjEVLEM4X4Xi8Y3Wsfwf+GaMarDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T20:11:10.555831Z"},"content_sha256":"ac9d3513aaa5897bfdf48746ea33558984ef8160b62d918146eb260fac751912","schema_version":"1.0","event_id":"sha256:ac9d3513aaa5897bfdf48746ea33558984ef8160b62d918146eb260fac751912"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WPJ4FH4CC2XLKELUKDY3VN5IHD/bundle.json","state_url":"https://pith.science/pith/WPJ4FH4CC2XLKELUKDY3VN5IHD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WPJ4FH4CC2XLKELUKDY3VN5IHD/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":"2026-08-15T20:11:10Z","links":{"resolver":"https://pith.science/pith/WPJ4FH4CC2XLKELUKDY3VN5IHD","bundle":"https://pith.science/pith/WPJ4FH4CC2XLKELUKDY3VN5IHD/bundle.json","state":"https://pith.science/pith/WPJ4FH4CC2XLKELUKDY3VN5IHD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WPJ4FH4CC2XLKELUKDY3VN5IHD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:WPJ4FH4CC2XLKELUKDY3VN5IHD","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":"d3b5f7185c5d3f7bb5403bd3af944a2b24fa7592f0c8f61b057c4f1a5c1a4b95","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-02-15T06:07:57Z","title_canon_sha256":"3b2bdd9a3fdd99691982f01c07c34d764e6b12b946a93495e20f2fd6d41f333d"},"schema_version":"1.0","source":{"id":"2302.07484","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.07484","created_at":"2026-07-05T06:57:21Z"},{"alias_kind":"arxiv_version","alias_value":"2302.07484v3","created_at":"2026-07-05T06:57:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.07484","created_at":"2026-07-05T06:57:21Z"},{"alias_kind":"pith_short_12","alias_value":"WPJ4FH4CC2XL","created_at":"2026-07-05T06:57:21Z"},{"alias_kind":"pith_short_16","alias_value":"WPJ4FH4CC2XLKELU","created_at":"2026-07-05T06:57:21Z"},{"alias_kind":"pith_short_8","alias_value":"WPJ4FH4C","created_at":"2026-07-05T06:57:21Z"}],"graph_snapshots":[{"event_id":"sha256:ac9d3513aaa5897bfdf48746ea33558984ef8160b62d918146eb260fac751912","target":"graph","created_at":"2026-07-05T06:57:21Z","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/2302.07484/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The position of the peak of the matter power spectrum, the so-called turnover scale, is set by the horizon size at the epoch of matter-radiation equality. It can easily be predicted in terms of the physics of the Universe in the relativistic era, and so can be used as a standard ruler, independent of other features present in the matter power spectrum, such as baryon acoustic oscillations (BAO). We use the distribution of quasars measured by the extended Baryon Oscillation Spectroscopic Survey (eBOSS) to determine the turnover scale in a model-independent fashion statistically. We avoid modell","authors_text":"Benedict Bahr-Kalus, David Parkinson, Eva-Maria Mueller","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-02-15T06:07:57Z","title":"Measurement of the matter-radiation equality scale using the extended Baryon Oscillation Spectroscopic Survey Quasar Sample"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.07484","kind":"arxiv","version":3},"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:ad45a5dee58b2a9f3c7b880899a0161c0902718cc627c32862bea418da1d57e5","target":"record","created_at":"2026-07-05T06:57:21Z","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":"d3b5f7185c5d3f7bb5403bd3af944a2b24fa7592f0c8f61b057c4f1a5c1a4b95","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-02-15T06:07:57Z","title_canon_sha256":"3b2bdd9a3fdd99691982f01c07c34d764e6b12b946a93495e20f2fd6d41f333d"},"schema_version":"1.0","source":{"id":"2302.07484","kind":"arxiv","version":3}},"canonical_sha256":"b3d3c29f8216aeb5117450f1bab7a838e85ce8e275ff746c9cabf3b64b17e08b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b3d3c29f8216aeb5117450f1bab7a838e85ce8e275ff746c9cabf3b64b17e08b","first_computed_at":"2026-07-05T06:57:21.286156Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:57:21.286156Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nQ/IONC2H0INd5OJZWgafWBXcUzVnJ0p6rK3MgX4iJTtfup/TJpgn5qCB597yatr+r8/94+GEgMZGMIeEezxBA==","signature_status":"signed_v1","signed_at":"2026-07-05T06:57:21.286651Z","signed_message":"canonical_sha256_bytes"},"source_id":"2302.07484","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ad45a5dee58b2a9f3c7b880899a0161c0902718cc627c32862bea418da1d57e5","sha256:ac9d3513aaa5897bfdf48746ea33558984ef8160b62d918146eb260fac751912"],"state_sha256":"c0dff00c53911d11b202ba506d2edd72174b2239728c9fd8ecdf3ffdb2f15eb6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DTH8ne7IVGThf96XKg6yS+rIJllUrE0cCN6xz15NnFb4y7JxKIvwwqacv+ysuBQqwkCfmJVqltgnnMtRmbhMAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T20:11:10.561202Z","bundle_sha256":"3ad5dcf7210adc2f443dc22e227293794c040ca57a36d4c63cf46a6c6e8f0918"}}