{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:UMWFVRYE3ZZINAHPKWG54XI4Y5","short_pith_number":"pith:UMWFVRYE","canonical_record":{"source":{"id":"1907.03778","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-07-08T18:00:10Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"a658e8aa30c6d2a470e8a4bd15aef406c32cec2de33e222a4df617808bd9e37e","abstract_canon_sha256":"625a64905e516ee28b06adab52c3a961895550cec5b71c0e3dbbf975f8fac2cb"},"schema_version":"1.0"},"canonical_sha256":"a32c5ac704de728680ef558dde5d1cc77d0d0c3689fbd21f940016965ae42f74","source":{"kind":"arxiv","id":"1907.03778","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.03778","created_at":"2026-07-05T00:54:22Z"},{"alias_kind":"arxiv_version","alias_value":"1907.03778v4","created_at":"2026-07-05T00:54:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.03778","created_at":"2026-07-05T00:54:22Z"},{"alias_kind":"pith_short_12","alias_value":"UMWFVRYE3ZZI","created_at":"2026-07-05T00:54:22Z"},{"alias_kind":"pith_short_16","alias_value":"UMWFVRYE3ZZINAHP","created_at":"2026-07-05T00:54:22Z"},{"alias_kind":"pith_short_8","alias_value":"UMWFVRYE","created_at":"2026-07-05T00:54:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:UMWFVRYE3ZZINAHPKWG54XI4Y5","target":"record","payload":{"canonical_record":{"source":{"id":"1907.03778","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-07-08T18:00:10Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"a658e8aa30c6d2a470e8a4bd15aef406c32cec2de33e222a4df617808bd9e37e","abstract_canon_sha256":"625a64905e516ee28b06adab52c3a961895550cec5b71c0e3dbbf975f8fac2cb"},"schema_version":"1.0"},"canonical_sha256":"a32c5ac704de728680ef558dde5d1cc77d0d0c3689fbd21f940016965ae42f74","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:54:22.703406Z","signature_b64":"4IwjXTwl62fo62cC8hbVWZ1haWoKfRD41zICToW3sMFcAB6uaPu8m6pUuNTvCRbfayOOnZ+JO4/FlDqPDMf5BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a32c5ac704de728680ef558dde5d1cc77d0d0c3689fbd21f940016965ae42f74","last_reissued_at":"2026-07-05T00:54:22.702958Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:54:22.702958Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.03778","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":"2026-07-05T00:54:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OgdmIF39lifDHi4iguQGmaRzx8yaTP0r7PQ78647Ojpl8DnxFOdiCEL5Q3s4BkY0VHIgGrdDaCuFoy1PzKl5Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T19:53:18.491106Z"},"content_sha256":"58ff35dada1837374ed3d02ef96fdeac9f237250ebe58caada4b87454c468f3a","schema_version":"1.0","event_id":"sha256:58ff35dada1837374ed3d02ef96fdeac9f237250ebe58caada4b87454c468f3a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:UMWFVRYE3ZZINAHPKWG54XI4Y5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A local resolution of the Hubble tension: The impact of screened fifth forces on the cosmic distance ladder","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"Bhuvnesh Jain, Harry Desmond, Jeremy Sakstein","submitted_at":"2019-07-08T18:00:10Z","abstract_excerpt":"The discrepancy between the values of the Hubble constant $H_0$ derived from the local distance ladder and the cosmic microwave background provides a tantalising hint of new physics. We explore a potential resolution involving screened fifth forces in the local Universe, which alter the Cepheid calibration of supernova distances. In particular, if the Cepheids with direct distance measurements from parallax or water masers are screened but a significant fraction of those in other galaxies are not, neglecting the difference between their underlying period--luminosity relations biases the local "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.03778","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/1907.03778/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":"2026-07-05T00:54:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"llBafIPQRjggWDupZWwFgIqNlBoZnpCRwXeEHR3V60JKWyvjAMfj8pi7/Lvjx9CUIYl+1y8x+jk0oMyDOefOBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T19:53:18.491616Z"},"content_sha256":"e30d13368a1cf401e894d80cc62946a509176efa161103324e53ddd37cfd8390","schema_version":"1.0","event_id":"sha256:e30d13368a1cf401e894d80cc62946a509176efa161103324e53ddd37cfd8390"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UMWFVRYE3ZZINAHPKWG54XI4Y5/bundle.json","state_url":"https://pith.science/pith/UMWFVRYE3ZZINAHPKWG54XI4Y5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UMWFVRYE3ZZINAHPKWG54XI4Y5/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":"2026-08-03T19:53:18Z","links":{"resolver":"https://pith.science/pith/UMWFVRYE3ZZINAHPKWG54XI4Y5","bundle":"https://pith.science/pith/UMWFVRYE3ZZINAHPKWG54XI4Y5/bundle.json","state":"https://pith.science/pith/UMWFVRYE3ZZINAHPKWG54XI4Y5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UMWFVRYE3ZZINAHPKWG54XI4Y5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:UMWFVRYE3ZZINAHPKWG54XI4Y5","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":"625a64905e516ee28b06adab52c3a961895550cec5b71c0e3dbbf975f8fac2cb","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-07-08T18:00:10Z","title_canon_sha256":"a658e8aa30c6d2a470e8a4bd15aef406c32cec2de33e222a4df617808bd9e37e"},"schema_version":"1.0","source":{"id":"1907.03778","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.03778","created_at":"2026-07-05T00:54:22Z"},{"alias_kind":"arxiv_version","alias_value":"1907.03778v4","created_at":"2026-07-05T00:54:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.03778","created_at":"2026-07-05T00:54:22Z"},{"alias_kind":"pith_short_12","alias_value":"UMWFVRYE3ZZI","created_at":"2026-07-05T00:54:22Z"},{"alias_kind":"pith_short_16","alias_value":"UMWFVRYE3ZZINAHP","created_at":"2026-07-05T00:54:22Z"},{"alias_kind":"pith_short_8","alias_value":"UMWFVRYE","created_at":"2026-07-05T00:54:22Z"}],"graph_snapshots":[{"event_id":"sha256:e30d13368a1cf401e894d80cc62946a509176efa161103324e53ddd37cfd8390","target":"graph","created_at":"2026-07-05T00:54:22Z","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/1907.03778/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The discrepancy between the values of the Hubble constant $H_0$ derived from the local distance ladder and the cosmic microwave background provides a tantalising hint of new physics. We explore a potential resolution involving screened fifth forces in the local Universe, which alter the Cepheid calibration of supernova distances. In particular, if the Cepheids with direct distance measurements from parallax or water masers are screened but a significant fraction of those in other galaxies are not, neglecting the difference between their underlying period--luminosity relations biases the local ","authors_text":"Bhuvnesh Jain, Harry Desmond, Jeremy Sakstein","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-07-08T18:00:10Z","title":"A local resolution of the Hubble tension: The impact of screened fifth forces on the cosmic distance ladder"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.03778","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":"sha256:58ff35dada1837374ed3d02ef96fdeac9f237250ebe58caada4b87454c468f3a","target":"record","created_at":"2026-07-05T00:54:22Z","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":"625a64905e516ee28b06adab52c3a961895550cec5b71c0e3dbbf975f8fac2cb","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-07-08T18:00:10Z","title_canon_sha256":"a658e8aa30c6d2a470e8a4bd15aef406c32cec2de33e222a4df617808bd9e37e"},"schema_version":"1.0","source":{"id":"1907.03778","kind":"arxiv","version":4}},"canonical_sha256":"a32c5ac704de728680ef558dde5d1cc77d0d0c3689fbd21f940016965ae42f74","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a32c5ac704de728680ef558dde5d1cc77d0d0c3689fbd21f940016965ae42f74","first_computed_at":"2026-07-05T00:54:22.702958Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:54:22.702958Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4IwjXTwl62fo62cC8hbVWZ1haWoKfRD41zICToW3sMFcAB6uaPu8m6pUuNTvCRbfayOOnZ+JO4/FlDqPDMf5BQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:54:22.703406Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.03778","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:58ff35dada1837374ed3d02ef96fdeac9f237250ebe58caada4b87454c468f3a","sha256:e30d13368a1cf401e894d80cc62946a509176efa161103324e53ddd37cfd8390"],"state_sha256":"c8b2c49c3c0f41d05d8ef6728e5daa839dd65c0a6c81548e77d4d1d90ae18279"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LsHh9Wx5SdPAdrworohi+GAxssUIhGVPsfbV2NyBJpE8D1VnA1WfhIV5JEOWioq/tzsN3+qn5oSNsQ8LvXtMAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T19:53:18.496743Z","bundle_sha256":"7eb0b1f9139f17a40818b8e1737364c8c6e654438d62d077b930c2904fc0d82d"}}