{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:532OZADD6BOGPGMSDUEATABNNI","short_pith_number":"pith:532OZADD","canonical_record":{"source":{"id":"astro-ph/0606709","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-06-29T04:33:35Z","cross_cats_sorted":[],"title_canon_sha256":"39f56b5dfb426a53cf65fbd61c46d0270956566423efd0bc40063cb5a82dcb87","abstract_canon_sha256":"33e23cf59cca987eeefdf4dae2b9554f1d2a9db6f544e99cf8fddd2d3f887b1a"},"schema_version":"1.0"},"canonical_sha256":"eef4ec8063f05c6799921d0809802d6a0ea648f6ff3bed1a0f3aaad8e0f37675","source":{"kind":"arxiv","id":"astro-ph/0606709","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0606709","created_at":"2026-07-04T15:19:06Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0606709v1","created_at":"2026-07-04T15:19:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0606709","created_at":"2026-07-04T15:19:06Z"},{"alias_kind":"pith_short_12","alias_value":"532OZADD6BOG","created_at":"2026-07-04T15:19:06Z"},{"alias_kind":"pith_short_16","alias_value":"532OZADD6BOGPGMS","created_at":"2026-07-04T15:19:06Z"},{"alias_kind":"pith_short_8","alias_value":"532OZADD","created_at":"2026-07-04T15:19:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:532OZADD6BOGPGMSDUEATABNNI","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0606709","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-06-29T04:33:35Z","cross_cats_sorted":[],"title_canon_sha256":"39f56b5dfb426a53cf65fbd61c46d0270956566423efd0bc40063cb5a82dcb87","abstract_canon_sha256":"33e23cf59cca987eeefdf4dae2b9554f1d2a9db6f544e99cf8fddd2d3f887b1a"},"schema_version":"1.0"},"canonical_sha256":"eef4ec8063f05c6799921d0809802d6a0ea648f6ff3bed1a0f3aaad8e0f37675","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:19:06.783117Z","signature_b64":"ikxL/qOKy2iK1SNq6QhzYuHfExVeViYmBMGAhoiufb3emVZKYZn8h9i8d/jFHOl0gCcC/ABuxwzmF7SdJO+wCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eef4ec8063f05c6799921d0809802d6a0ea648f6ff3bed1a0f3aaad8e0f37675","last_reissued_at":"2026-07-04T15:19:06.782661Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:19:06.782661Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0606709","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":"2026-07-04T15:19:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XmCy61mNBIWiMyS5uOeFLDxA9VTjQp77vhrbtU5d+p4kj4FY23dg1BwD0lZNWsQNqx2DC/hLTleteAM99qxHDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T10:58:13.513127Z"},"content_sha256":"b33259c7c3bd35fef5d379376c03c3b0b42b532011058952b5c04ec84247759f","schema_version":"1.0","event_id":"sha256:b33259c7c3bd35fef5d379376c03c3b0b42b532011058952b5c04ec84247759f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:532OZADD6BOGPGMSDUEATABNNI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Pico: Parameters for the Impatient Cosmologist","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Benjamin D. Wandelt (UIUC), William A. Fendt","submitted_at":"2006-06-29T04:33:35Z","abstract_excerpt":"We present a fast, accurate, robust and flexible method of accelerating parameter estimation. This algorithm, called Pico, can compute the CMB power spectrum and matter transfer function as well as any computationally expensive likelihoods in a few milliseconds. By removing these bottlenecks from parameter estimation codes, Pico decreases their computational time by 1 or 2 orders of magnitude. Pico has several important properties. First, it is extremely fast and accurate over a large volume of parameter space. Furthermore, its accuracy can continue to be improved by using a larger training se"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0606709","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0606709/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":"2026-07-04T15:19:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sn+ptIVBpJ+G7iUK0/ReiAvsreU30bHnSZzkwB97KDCT+wLVn0HPyVpk8iGlTb98Xpt0fHLnuT8UXnAZTtwaAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T10:58:13.513654Z"},"content_sha256":"afdbe8f4af87168bbc3fab7b5571aab3ed8d3704884259e3e8089edeb902ecfb","schema_version":"1.0","event_id":"sha256:afdbe8f4af87168bbc3fab7b5571aab3ed8d3704884259e3e8089edeb902ecfb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/532OZADD6BOGPGMSDUEATABNNI/bundle.json","state_url":"https://pith.science/pith/532OZADD6BOGPGMSDUEATABNNI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/532OZADD6BOGPGMSDUEATABNNI/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":"2026-08-05T10:58:13Z","links":{"resolver":"https://pith.science/pith/532OZADD6BOGPGMSDUEATABNNI","bundle":"https://pith.science/pith/532OZADD6BOGPGMSDUEATABNNI/bundle.json","state":"https://pith.science/pith/532OZADD6BOGPGMSDUEATABNNI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/532OZADD6BOGPGMSDUEATABNNI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:532OZADD6BOGPGMSDUEATABNNI","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":"33e23cf59cca987eeefdf4dae2b9554f1d2a9db6f544e99cf8fddd2d3f887b1a","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-06-29T04:33:35Z","title_canon_sha256":"39f56b5dfb426a53cf65fbd61c46d0270956566423efd0bc40063cb5a82dcb87"},"schema_version":"1.0","source":{"id":"astro-ph/0606709","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0606709","created_at":"2026-07-04T15:19:06Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0606709v1","created_at":"2026-07-04T15:19:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0606709","created_at":"2026-07-04T15:19:06Z"},{"alias_kind":"pith_short_12","alias_value":"532OZADD6BOG","created_at":"2026-07-04T15:19:06Z"},{"alias_kind":"pith_short_16","alias_value":"532OZADD6BOGPGMS","created_at":"2026-07-04T15:19:06Z"},{"alias_kind":"pith_short_8","alias_value":"532OZADD","created_at":"2026-07-04T15:19:06Z"}],"graph_snapshots":[{"event_id":"sha256:afdbe8f4af87168bbc3fab7b5571aab3ed8d3704884259e3e8089edeb902ecfb","target":"graph","created_at":"2026-07-04T15:19:06Z","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/astro-ph/0606709/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a fast, accurate, robust and flexible method of accelerating parameter estimation. This algorithm, called Pico, can compute the CMB power spectrum and matter transfer function as well as any computationally expensive likelihoods in a few milliseconds. By removing these bottlenecks from parameter estimation codes, Pico decreases their computational time by 1 or 2 orders of magnitude. Pico has several important properties. First, it is extremely fast and accurate over a large volume of parameter space. Furthermore, its accuracy can continue to be improved by using a larger training se","authors_text":"Benjamin D. Wandelt (UIUC), William A. Fendt","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-06-29T04:33:35Z","title":"Pico: Parameters for the Impatient Cosmologist"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0606709","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:b33259c7c3bd35fef5d379376c03c3b0b42b532011058952b5c04ec84247759f","target":"record","created_at":"2026-07-04T15:19:06Z","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":"33e23cf59cca987eeefdf4dae2b9554f1d2a9db6f544e99cf8fddd2d3f887b1a","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-06-29T04:33:35Z","title_canon_sha256":"39f56b5dfb426a53cf65fbd61c46d0270956566423efd0bc40063cb5a82dcb87"},"schema_version":"1.0","source":{"id":"astro-ph/0606709","kind":"arxiv","version":1}},"canonical_sha256":"eef4ec8063f05c6799921d0809802d6a0ea648f6ff3bed1a0f3aaad8e0f37675","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eef4ec8063f05c6799921d0809802d6a0ea648f6ff3bed1a0f3aaad8e0f37675","first_computed_at":"2026-07-04T15:19:06.782661Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:19:06.782661Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ikxL/qOKy2iK1SNq6QhzYuHfExVeViYmBMGAhoiufb3emVZKYZn8h9i8d/jFHOl0gCcC/ABuxwzmF7SdJO+wCQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:19:06.783117Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0606709","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b33259c7c3bd35fef5d379376c03c3b0b42b532011058952b5c04ec84247759f","sha256:afdbe8f4af87168bbc3fab7b5571aab3ed8d3704884259e3e8089edeb902ecfb"],"state_sha256":"49a2678295d5a64221c1ae6eb72102cf70fb70be4d9e0a416febecbb13047a39"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x+72R9YERSQonCUofa/ag4eciFyi7mgFik46tDu00tUDix183XCgFvA9QYyWhX0m9NsQqKHMVh0jlNFF9NHfAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T10:58:13.518782Z","bundle_sha256":"9006a24b7d49de3290eb90f3ec9883eae465fabf3c505bf17f7e1e81b5866de3"}}