{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:2VMFDQP25KXMH3NONUWFEWVM6C","short_pith_number":"pith:2VMFDQP2","canonical_record":{"source":{"id":"0902.4399","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-02-25T15:44:56Z","cross_cats_sorted":[],"title_canon_sha256":"5e0b3bdcd5b537fd093a632243da835382a4989fa6ae9cf952cc90522b04e5c9","abstract_canon_sha256":"aa9d761072642131c333cb53905e640c254efb2f2a138f2b08cb6eb25e1ed370"},"schema_version":"1.0"},"canonical_sha256":"d55851c1faeaaec3edae6d2c525aacf09e7689737a3fc6a2a3493fa0bae6f325","source":{"kind":"arxiv","id":"0902.4399","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0902.4399","created_at":"2026-05-18T04:29:16Z"},{"alias_kind":"arxiv_version","alias_value":"0902.4399v1","created_at":"2026-05-18T04:29:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0902.4399","created_at":"2026-05-18T04:29:16Z"},{"alias_kind":"pith_short_12","alias_value":"2VMFDQP25KXM","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"2VMFDQP25KXMH3NO","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"2VMFDQP2","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:2VMFDQP25KXMH3NONUWFEWVM6C","target":"record","payload":{"canonical_record":{"source":{"id":"0902.4399","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-02-25T15:44:56Z","cross_cats_sorted":[],"title_canon_sha256":"5e0b3bdcd5b537fd093a632243da835382a4989fa6ae9cf952cc90522b04e5c9","abstract_canon_sha256":"aa9d761072642131c333cb53905e640c254efb2f2a138f2b08cb6eb25e1ed370"},"schema_version":"1.0"},"canonical_sha256":"d55851c1faeaaec3edae6d2c525aacf09e7689737a3fc6a2a3493fa0bae6f325","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:29:16.265543Z","signature_b64":"yxiauszGZKzvDSluqnV5Sff3Xp38GIf/0578wC16SiZy0swtpcyp9ciSFokeLcsnAkDUfkDNxXhW80kesqy5DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d55851c1faeaaec3edae6d2c525aacf09e7689737a3fc6a2a3493fa0bae6f325","last_reissued_at":"2026-05-18T04:29:16.265116Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:29:16.265116Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0902.4399","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":"2026-05-18T04:29:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VP23IIOyzC+KNhZF/JxpkZGTqa6BX4zC4t0x74/Q6X5lhrqUUnllwDf7mlSORvu2TN42BrLY4iZXMtEsYK9zDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T21:07:50.707986Z"},"content_sha256":"b288ec80059eb9d360dba5be2a9416cfe1c97623f682feab5a9fa33a27bf9e10","schema_version":"1.0","event_id":"sha256:b288ec80059eb9d360dba5be2a9416cfe1c97623f682feab5a9fa33a27bf9e10"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:2VMFDQP25KXMH3NONUWFEWVM6C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Optimal Binning of the Primordial Power Spectrum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Andrew H. Jaffe, Paniez Paykari","submitted_at":"2009-02-25T15:44:56Z","abstract_excerpt":"The primordial power spectrum describes the initial perturbations in the Universe which eventually grew into the large-scale structure we observe today, and thereby provides an indirect probe of inflation or other structure-formation mechanisms. In this paper we will investigate the best scales the primordial power spectrum can be probed, in accordance with the knowledge about other cosmological parameters such as $\\Omega_{b}$, $\\Omega_{c}$, $\\Omega_{\\Lambda}$, $h$ and $\\tau$. The aim is to find the most informative way of measuring the primordial power spectrum at different length scales, usi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0902.4399","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":"2026-05-18T04:29:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bYsjQDkDKMl3Ch/5p5lnGb2eqc1tVfMmmm74LG6RdZcPoLee9CbHv9jYu6PM1IN4j2bZu9/8ToKnKoh1lAnnDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T21:07:50.711752Z"},"content_sha256":"2f9daa8cd055c76ced3ca5b1198e8b65406e2c21bd667f14ea55b3fdcab1aa17","schema_version":"1.0","event_id":"sha256:2f9daa8cd055c76ced3ca5b1198e8b65406e2c21bd667f14ea55b3fdcab1aa17"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2VMFDQP25KXMH3NONUWFEWVM6C/bundle.json","state_url":"https://pith.science/pith/2VMFDQP25KXMH3NONUWFEWVM6C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2VMFDQP25KXMH3NONUWFEWVM6C/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":"2026-05-20T21:07:50Z","links":{"resolver":"https://pith.science/pith/2VMFDQP25KXMH3NONUWFEWVM6C","bundle":"https://pith.science/pith/2VMFDQP25KXMH3NONUWFEWVM6C/bundle.json","state":"https://pith.science/pith/2VMFDQP25KXMH3NONUWFEWVM6C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2VMFDQP25KXMH3NONUWFEWVM6C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:2VMFDQP25KXMH3NONUWFEWVM6C","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":"aa9d761072642131c333cb53905e640c254efb2f2a138f2b08cb6eb25e1ed370","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-02-25T15:44:56Z","title_canon_sha256":"5e0b3bdcd5b537fd093a632243da835382a4989fa6ae9cf952cc90522b04e5c9"},"schema_version":"1.0","source":{"id":"0902.4399","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0902.4399","created_at":"2026-05-18T04:29:16Z"},{"alias_kind":"arxiv_version","alias_value":"0902.4399v1","created_at":"2026-05-18T04:29:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0902.4399","created_at":"2026-05-18T04:29:16Z"},{"alias_kind":"pith_short_12","alias_value":"2VMFDQP25KXM","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"2VMFDQP25KXMH3NO","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"2VMFDQP2","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:2f9daa8cd055c76ced3ca5b1198e8b65406e2c21bd667f14ea55b3fdcab1aa17","target":"graph","created_at":"2026-05-18T04:29:16Z","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 primordial power spectrum describes the initial perturbations in the Universe which eventually grew into the large-scale structure we observe today, and thereby provides an indirect probe of inflation or other structure-formation mechanisms. In this paper we will investigate the best scales the primordial power spectrum can be probed, in accordance with the knowledge about other cosmological parameters such as $\\Omega_{b}$, $\\Omega_{c}$, $\\Omega_{\\Lambda}$, $h$ and $\\tau$. The aim is to find the most informative way of measuring the primordial power spectrum at different length scales, usi","authors_text":"Andrew H. Jaffe, Paniez Paykari","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-02-25T15:44:56Z","title":"Optimal Binning of the Primordial Power Spectrum"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0902.4399","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:b288ec80059eb9d360dba5be2a9416cfe1c97623f682feab5a9fa33a27bf9e10","target":"record","created_at":"2026-05-18T04:29:16Z","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":"aa9d761072642131c333cb53905e640c254efb2f2a138f2b08cb6eb25e1ed370","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-02-25T15:44:56Z","title_canon_sha256":"5e0b3bdcd5b537fd093a632243da835382a4989fa6ae9cf952cc90522b04e5c9"},"schema_version":"1.0","source":{"id":"0902.4399","kind":"arxiv","version":1}},"canonical_sha256":"d55851c1faeaaec3edae6d2c525aacf09e7689737a3fc6a2a3493fa0bae6f325","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d55851c1faeaaec3edae6d2c525aacf09e7689737a3fc6a2a3493fa0bae6f325","first_computed_at":"2026-05-18T04:29:16.265116Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:29:16.265116Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yxiauszGZKzvDSluqnV5Sff3Xp38GIf/0578wC16SiZy0swtpcyp9ciSFokeLcsnAkDUfkDNxXhW80kesqy5DA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:29:16.265543Z","signed_message":"canonical_sha256_bytes"},"source_id":"0902.4399","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b288ec80059eb9d360dba5be2a9416cfe1c97623f682feab5a9fa33a27bf9e10","sha256:2f9daa8cd055c76ced3ca5b1198e8b65406e2c21bd667f14ea55b3fdcab1aa17"],"state_sha256":"ebfaf42a36bd58810ac5de6adf28e8a33920c49ef966471bca02a6b3575fe2b6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N+90JfmIWqVfx0QS9cd98zgr0F+vtWByZeZX3yQBoQRYsMM3Qe7CaaO9KRdqjcfOEKB1JTkkeXdiBWV4TS3DAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T21:07:50.727299Z","bundle_sha256":"07951a43d6629118ecc23b433e112198ac1b255e66b8d74a85b00dfe9ab89d0e"}}