{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:V4CGWPILKH42WJ5HNUOUYPFXER","short_pith_number":"pith:V4CGWPIL","canonical_record":{"source":{"id":"astro-ph/0202357","kind":"arxiv","version":4},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-02-19T20:03:51Z","cross_cats_sorted":[],"title_canon_sha256":"478fe9d1dbd5975cab25134206748bcfbf3f80af262be9452d741f5d038c60ca","abstract_canon_sha256":"dea9a49388569f6053e79ff5dda971c0ece59c30b440a8e7d1a9b719c13777d7"},"schema_version":"1.0"},"canonical_sha256":"af046b3d0b51f9ab27a76d1d4c3cb72470303bb5a0c108d78747d95649838def","source":{"kind":"arxiv","id":"astro-ph/0202357","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0202357","created_at":"2026-07-04T16:29:25Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0202357v4","created_at":"2026-07-04T16:29:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0202357","created_at":"2026-07-04T16:29:25Z"},{"alias_kind":"pith_short_12","alias_value":"V4CGWPILKH42","created_at":"2026-07-04T16:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"V4CGWPILKH42WJ5H","created_at":"2026-07-04T16:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"V4CGWPIL","created_at":"2026-07-04T16:29:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:V4CGWPILKH42WJ5HNUOUYPFXER","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0202357","kind":"arxiv","version":4},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-02-19T20:03:51Z","cross_cats_sorted":[],"title_canon_sha256":"478fe9d1dbd5975cab25134206748bcfbf3f80af262be9452d741f5d038c60ca","abstract_canon_sha256":"dea9a49388569f6053e79ff5dda971c0ece59c30b440a8e7d1a9b719c13777d7"},"schema_version":"1.0"},"canonical_sha256":"af046b3d0b51f9ab27a76d1d4c3cb72470303bb5a0c108d78747d95649838def","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:29:25.870601Z","signature_b64":"1adv3oQcubmx+6I2XiafdxQtMyaTN9DAnKpV2neIWdh9QFh2DLlFt9KOMKo5SAXVP9hd8XEi/MamYltG0j5jBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"af046b3d0b51f9ab27a76d1d4c3cb72470303bb5a0c108d78747d95649838def","last_reissued_at":"2026-07-04T16:29:25.870100Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:29:25.870100Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0202357","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T16:29:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u1gvFRf0iTPgIXMdDj1bkEJHKJCbcqmonBvM33ZvIVG4bjrx5xsOyco4MH3/3q26TbdI8Ms7WqKashg6qr9KAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T10:34:10.822672Z"},"content_sha256":"e7ab1833ea214e31fb2c953b47149f9619078c5398cf2dde4871cce61a178da1","schema_version":"1.0","event_id":"sha256:e7ab1833ea214e31fb2c953b47149f9619078c5398cf2dde4871cce61a178da1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:V4CGWPILKH42WJ5HNUOUYPFXER","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"`Hyper Parameters' Approach to Joint Estimation: Applications to Cepheid-Calibrated Distances and X-Ray Clusters","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Ankara), Cambridge, Cambridge), METU, Munich), Ofer Lahav (IoA, Pirin Erdogdu (IoA, Stefano Ettori (ESO","submitted_at":"2002-02-19T20:03:51Z","abstract_excerpt":"We use a generalised procedure for the combined likelihood analysis of different cosmological probes, the `Hyper-Parameters' method, that allows freedom in the relative weights of the raw measurements. We perform a joint analysis of the cepheid-calibrated data from the Hubble Space Telescope Key Project and the baryon mass fraction in clusters to constrain the total matter density of the universe, Omega_m, and the Hubble parameter, h. We compare the results obtained using Hyper-Parameters method with the estimates from standard chi^2 analysis. We assume that the universe is spatially flat, wit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0202357","kind":"arxiv","version":4},"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/0202357/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":"2026-07-04T16:29:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jZHv+JF0CPXzZ5g2FVBufvEhO2E1lvuiirkeWrL7qQQq8KBfVLj6GKs5wukcn/TFafcQuj3hMrIoIhlSQZznDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T10:34:10.823167Z"},"content_sha256":"73475e0a93c69f65cee00a8c6d4d65f00e922841f079abd989046cea147a8e38","schema_version":"1.0","event_id":"sha256:73475e0a93c69f65cee00a8c6d4d65f00e922841f079abd989046cea147a8e38"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/V4CGWPILKH42WJ5HNUOUYPFXER/bundle.json","state_url":"https://pith.science/pith/V4CGWPILKH42WJ5HNUOUYPFXER/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/V4CGWPILKH42WJ5HNUOUYPFXER/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":"2026-08-05T10:34:10Z","links":{"resolver":"https://pith.science/pith/V4CGWPILKH42WJ5HNUOUYPFXER","bundle":"https://pith.science/pith/V4CGWPILKH42WJ5HNUOUYPFXER/bundle.json","state":"https://pith.science/pith/V4CGWPILKH42WJ5HNUOUYPFXER/state.json","well_known_bundle":"https://pith.science/.well-known/pith/V4CGWPILKH42WJ5HNUOUYPFXER/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:V4CGWPILKH42WJ5HNUOUYPFXER","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":"dea9a49388569f6053e79ff5dda971c0ece59c30b440a8e7d1a9b719c13777d7","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-02-19T20:03:51Z","title_canon_sha256":"478fe9d1dbd5975cab25134206748bcfbf3f80af262be9452d741f5d038c60ca"},"schema_version":"1.0","source":{"id":"astro-ph/0202357","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0202357","created_at":"2026-07-04T16:29:25Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0202357v4","created_at":"2026-07-04T16:29:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0202357","created_at":"2026-07-04T16:29:25Z"},{"alias_kind":"pith_short_12","alias_value":"V4CGWPILKH42","created_at":"2026-07-04T16:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"V4CGWPILKH42WJ5H","created_at":"2026-07-04T16:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"V4CGWPIL","created_at":"2026-07-04T16:29:25Z"}],"graph_snapshots":[{"event_id":"sha256:73475e0a93c69f65cee00a8c6d4d65f00e922841f079abd989046cea147a8e38","target":"graph","created_at":"2026-07-04T16:29:25Z","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/0202357/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We use a generalised procedure for the combined likelihood analysis of different cosmological probes, the `Hyper-Parameters' method, that allows freedom in the relative weights of the raw measurements. We perform a joint analysis of the cepheid-calibrated data from the Hubble Space Telescope Key Project and the baryon mass fraction in clusters to constrain the total matter density of the universe, Omega_m, and the Hubble parameter, h. We compare the results obtained using Hyper-Parameters method with the estimates from standard chi^2 analysis. We assume that the universe is spatially flat, wit","authors_text":"Ankara), Cambridge, Cambridge), METU, Munich), Ofer Lahav (IoA, Pirin Erdogdu (IoA, Stefano Ettori (ESO","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2002-02-19T20:03:51Z","title":"`Hyper Parameters' Approach to Joint Estimation: Applications to Cepheid-Calibrated Distances and X-Ray Clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0202357","kind":"arxiv","version":4},"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:e7ab1833ea214e31fb2c953b47149f9619078c5398cf2dde4871cce61a178da1","target":"record","created_at":"2026-07-04T16:29:25Z","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":"dea9a49388569f6053e79ff5dda971c0ece59c30b440a8e7d1a9b719c13777d7","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-02-19T20:03:51Z","title_canon_sha256":"478fe9d1dbd5975cab25134206748bcfbf3f80af262be9452d741f5d038c60ca"},"schema_version":"1.0","source":{"id":"astro-ph/0202357","kind":"arxiv","version":4}},"canonical_sha256":"af046b3d0b51f9ab27a76d1d4c3cb72470303bb5a0c108d78747d95649838def","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"af046b3d0b51f9ab27a76d1d4c3cb72470303bb5a0c108d78747d95649838def","first_computed_at":"2026-07-04T16:29:25.870100Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:29:25.870100Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1adv3oQcubmx+6I2XiafdxQtMyaTN9DAnKpV2neIWdh9QFh2DLlFt9KOMKo5SAXVP9hd8XEi/MamYltG0j5jBg==","signature_status":"signed_v1","signed_at":"2026-07-04T16:29:25.870601Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0202357","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e7ab1833ea214e31fb2c953b47149f9619078c5398cf2dde4871cce61a178da1","sha256:73475e0a93c69f65cee00a8c6d4d65f00e922841f079abd989046cea147a8e38"],"state_sha256":"5a2f8f9c6099e3831dbc7a77a4e6fe0a4154e5afc53281d0c0772207e8b50fa8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W6A6HjJe2cqlndj0L7rzEEoc5xOYyCAGUUUWt7kexPt/Xou/IpFKKbEwRra+OR/702A2PpvR2qdhU5/kDG1ADw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T10:34:10.827557Z","bundle_sha256":"b6ee12c9fef48b333b65c49b0122f4af4d0abdacdd490d874f59b93fcc3103f7"}}