{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:XAADTDIFXAYXLGOQJUOYEIBGR7","short_pith_number":"pith:XAADTDIF","canonical_record":{"source":{"id":"astro-ph/0006103","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-06-07T23:05:04Z","cross_cats_sorted":[],"title_canon_sha256":"6fb6b738083f2bebd06bc9d5981bceae6c3962806f78046c60db59a34401cea0","abstract_canon_sha256":"054d3ab7c0a097fd5275ca68428b69e7378a414d89662c66172e6beeb213ee49"},"schema_version":"1.0"},"canonical_sha256":"b800398d05b8317599d04d1d8220268fd67c22e58a8806b84b00bde12ba76a30","source":{"kind":"arxiv","id":"astro-ph/0006103","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0006103","created_at":"2026-07-04T16:16:46Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0006103v2","created_at":"2026-07-04T16:16:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0006103","created_at":"2026-07-04T16:16:46Z"},{"alias_kind":"pith_short_12","alias_value":"XAADTDIFXAYX","created_at":"2026-07-04T16:16:46Z"},{"alias_kind":"pith_short_16","alias_value":"XAADTDIFXAYXLGOQ","created_at":"2026-07-04T16:16:46Z"},{"alias_kind":"pith_short_8","alias_value":"XAADTDIF","created_at":"2026-07-04T16:16:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:XAADTDIFXAYXLGOQJUOYEIBGR7","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0006103","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-06-07T23:05:04Z","cross_cats_sorted":[],"title_canon_sha256":"6fb6b738083f2bebd06bc9d5981bceae6c3962806f78046c60db59a34401cea0","abstract_canon_sha256":"054d3ab7c0a097fd5275ca68428b69e7378a414d89662c66172e6beeb213ee49"},"schema_version":"1.0"},"canonical_sha256":"b800398d05b8317599d04d1d8220268fd67c22e58a8806b84b00bde12ba76a30","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:16:46.380337Z","signature_b64":"rqLMJ3G6EXagzscwQALoNwOA6BFJjppnLYvC21AvLrkb57tji0Gjo05OmGx3lKU0Au1SYxmqts1d8cVGTmA7Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b800398d05b8317599d04d1d8220268fd67c22e58a8806b84b00bde12ba76a30","last_reissued_at":"2026-07-04T16:16:46.379850Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:16:46.379850Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0006103","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":"2026-07-04T16:16:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TiTLL1Lcxtz8xW1M3oBhGW1dFS0RvZqUGuJErVLvba7fswEEfHx2d9F3Z7lOH5QZwJ/Y8Dz+0QgQarasJlY8BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T06:07:47.751022Z"},"content_sha256":"d68d4a142f8b314fafa9006a965219903a57577f4f5767c02768b09c87e40961","schema_version":"1.0","event_id":"sha256:d68d4a142f8b314fafa9006a965219903a57577f4f5767c02768b09c87e40961"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:XAADTDIFXAYXLGOQJUOYEIBGR7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Median Statistics, H_0, and the Accelerating Universe","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Bharat Ratra, J. Richard Gott III, Michael S. Vogeley, Silviu Podariu","submitted_at":"2000-06-07T23:05:04Z","abstract_excerpt":"(Abridged) We develop median statistics that provide powerful alternatives to chi-squared likelihood methods and require fewer assumptions about the data. Applying median statistics to Huchra's compilation of nearly all estimates of the Hubble constant, we find a median value H_0=67 km/s/Mpc. Median statistics assume only that the measurements are independent and free of systematic errors. This estimate is arguably the best summary of current knowledge because it uses all available data and, unlike other estimates, makes no assumption about the distribution of measurement errors. The 95% range"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0006103","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/astro-ph/0006103/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":"2026-07-04T16:16:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RwtVKsTBUUCNFScNI4BV3E57ES4htQabmfpolkX2aNPbpR1f3Cc4ntA84doDj2pnd0YLd6JyRbkkhYg0j2jmBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T06:07:47.751877Z"},"content_sha256":"b6c2c0c6efeea8f0acbc7c038850d187796efc180dc7e9c453268356e1d4d600","schema_version":"1.0","event_id":"sha256:b6c2c0c6efeea8f0acbc7c038850d187796efc180dc7e9c453268356e1d4d600"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XAADTDIFXAYXLGOQJUOYEIBGR7/bundle.json","state_url":"https://pith.science/pith/XAADTDIFXAYXLGOQJUOYEIBGR7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XAADTDIFXAYXLGOQJUOYEIBGR7/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":"2026-08-16T06:07:47Z","links":{"resolver":"https://pith.science/pith/XAADTDIFXAYXLGOQJUOYEIBGR7","bundle":"https://pith.science/pith/XAADTDIFXAYXLGOQJUOYEIBGR7/bundle.json","state":"https://pith.science/pith/XAADTDIFXAYXLGOQJUOYEIBGR7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XAADTDIFXAYXLGOQJUOYEIBGR7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:XAADTDIFXAYXLGOQJUOYEIBGR7","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":"054d3ab7c0a097fd5275ca68428b69e7378a414d89662c66172e6beeb213ee49","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-06-07T23:05:04Z","title_canon_sha256":"6fb6b738083f2bebd06bc9d5981bceae6c3962806f78046c60db59a34401cea0"},"schema_version":"1.0","source":{"id":"astro-ph/0006103","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0006103","created_at":"2026-07-04T16:16:46Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0006103v2","created_at":"2026-07-04T16:16:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0006103","created_at":"2026-07-04T16:16:46Z"},{"alias_kind":"pith_short_12","alias_value":"XAADTDIFXAYX","created_at":"2026-07-04T16:16:46Z"},{"alias_kind":"pith_short_16","alias_value":"XAADTDIFXAYXLGOQ","created_at":"2026-07-04T16:16:46Z"},{"alias_kind":"pith_short_8","alias_value":"XAADTDIF","created_at":"2026-07-04T16:16:46Z"}],"graph_snapshots":[{"event_id":"sha256:b6c2c0c6efeea8f0acbc7c038850d187796efc180dc7e9c453268356e1d4d600","target":"graph","created_at":"2026-07-04T16:16:46Z","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/0006103/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"(Abridged) We develop median statistics that provide powerful alternatives to chi-squared likelihood methods and require fewer assumptions about the data. Applying median statistics to Huchra's compilation of nearly all estimates of the Hubble constant, we find a median value H_0=67 km/s/Mpc. Median statistics assume only that the measurements are independent and free of systematic errors. This estimate is arguably the best summary of current knowledge because it uses all available data and, unlike other estimates, makes no assumption about the distribution of measurement errors. The 95% range","authors_text":"Bharat Ratra, J. Richard Gott III, Michael S. Vogeley, Silviu Podariu","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2000-06-07T23:05:04Z","title":"Median Statistics, H_0, and the Accelerating Universe"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0006103","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:d68d4a142f8b314fafa9006a965219903a57577f4f5767c02768b09c87e40961","target":"record","created_at":"2026-07-04T16:16:46Z","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":"054d3ab7c0a097fd5275ca68428b69e7378a414d89662c66172e6beeb213ee49","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-06-07T23:05:04Z","title_canon_sha256":"6fb6b738083f2bebd06bc9d5981bceae6c3962806f78046c60db59a34401cea0"},"schema_version":"1.0","source":{"id":"astro-ph/0006103","kind":"arxiv","version":2}},"canonical_sha256":"b800398d05b8317599d04d1d8220268fd67c22e58a8806b84b00bde12ba76a30","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b800398d05b8317599d04d1d8220268fd67c22e58a8806b84b00bde12ba76a30","first_computed_at":"2026-07-04T16:16:46.379850Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:16:46.379850Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rqLMJ3G6EXagzscwQALoNwOA6BFJjppnLYvC21AvLrkb57tji0Gjo05OmGx3lKU0Au1SYxmqts1d8cVGTmA7Bw==","signature_status":"signed_v1","signed_at":"2026-07-04T16:16:46.380337Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0006103","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d68d4a142f8b314fafa9006a965219903a57577f4f5767c02768b09c87e40961","sha256:b6c2c0c6efeea8f0acbc7c038850d187796efc180dc7e9c453268356e1d4d600"],"state_sha256":"99829ba358b549db50e79e97bbfa2c185601efad6e05fdee7b795c0fa754d364"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MCz9moErrWWdRJurgifWCUOmsfQb4jBilvDXF0CClat/tHevqW8yQh2Scpx9NmIqsabpUHtytqSPJFAtTc7DDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T06:07:47.756827Z","bundle_sha256":"0f6faa6174cbd09a4146e79be537fbca6ddd7b11c892f649e1a69b02ec84a915"}}