{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:7IANVWGO53O2VQAZ2EVI4BHO4G","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":"b62493282cea65f45a834bd97c6dc8bf59ade61a67ffe9c37ea54d2925b7b067","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-07-21T11:17:00Z","title_canon_sha256":"d2d0eb204fad1beebccbcab6cd355ccc32c3246413526668c7881db4b26a72d1"},"schema_version":"1.0","source":{"id":"2007.10716","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.10716","created_at":"2026-07-05T01:22:02Z"},{"alias_kind":"arxiv_version","alias_value":"2007.10716v2","created_at":"2026-07-05T01:22:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.10716","created_at":"2026-07-05T01:22:02Z"},{"alias_kind":"pith_short_12","alias_value":"7IANVWGO53O2","created_at":"2026-07-05T01:22:02Z"},{"alias_kind":"pith_short_16","alias_value":"7IANVWGO53O2VQAZ","created_at":"2026-07-05T01:22:02Z"},{"alias_kind":"pith_short_8","alias_value":"7IANVWGO","created_at":"2026-07-05T01:22:02Z"}],"graph_snapshots":[{"event_id":"sha256:42fd424c2d8ed0cf527061805b0772694b931682becd076429c63f871dc072ba","target":"graph","created_at":"2026-07-05T01:22:02Z","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/2007.10716/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This is a transcript of a talk that I gave in Cambridge on 17th July 2020 on the `Hubble tension'. I review the SH0ES analyses by Riess and collaborators and point out some internal inconsistencies, including a discrepancy between the relative distances inferred from Cepheids of two of the primary geometric distance anchors, the Large Magellanic Cloud (LMC) and NGC 4258. I then ask `what would it take to make SH0ES compatible with early time measurements?'. The answer is a systematic bias of 0.1 - 0.15 mag in the intercept of the Cepheid period-luminosity relations of SH0ES galaxies. Such a bi","authors_text":"G. Efstathiou","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-07-21T11:17:00Z","title":"A Lockdown Perspective on the Hubble Tension (with comments from the SH0ES team)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.10716","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:d793fe63a8afd1f79ff578a655caf123be7350a0002f4b96b0a97fbd66920f0f","target":"record","created_at":"2026-07-05T01:22:02Z","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":"b62493282cea65f45a834bd97c6dc8bf59ade61a67ffe9c37ea54d2925b7b067","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-07-21T11:17:00Z","title_canon_sha256":"d2d0eb204fad1beebccbcab6cd355ccc32c3246413526668c7881db4b26a72d1"},"schema_version":"1.0","source":{"id":"2007.10716","kind":"arxiv","version":2}},"canonical_sha256":"fa00dad8ceeeddaac019d12a8e04eee1beda2d0f06868c5cdf99285bc2c3710c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fa00dad8ceeeddaac019d12a8e04eee1beda2d0f06868c5cdf99285bc2c3710c","first_computed_at":"2026-07-05T01:22:02.994092Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:22:02.994092Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WYlGG+kWvMF6yh4lpc9vmL7otBIQN0d9iQj5UpR6XxJqS41kcMoS2NnIiZDU7rQzGfD+sse1s9Tg//w9HbutBw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:22:02.994507Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.10716","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d793fe63a8afd1f79ff578a655caf123be7350a0002f4b96b0a97fbd66920f0f","sha256:42fd424c2d8ed0cf527061805b0772694b931682becd076429c63f871dc072ba"],"state_sha256":"50ab9f28f1afd0b6554d1155b4a32e8a8d73a2c573c5341505eb6273140b2297"}