{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:6QIOE2HYPRLS7HXMOGQDG6IGM5","short_pith_number":"pith:6QIOE2HY","canonical_record":{"source":{"id":"1908.02401","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-08-06T23:51:56Z","cross_cats_sorted":[],"title_canon_sha256":"f06bd081931474c1c2331ef654c89b6b2bfa468f87ba23d9841c536027a7ce3d","abstract_canon_sha256":"245414a56bc6a42618ed0ce1d8cd3bbffc64b634a782df47b6fbf3fa35d97ce6"},"schema_version":"1.0"},"canonical_sha256":"f410e268f87c572f9eec71a03379066741392179a31580a2835a1073eb447485","source":{"kind":"arxiv","id":"1908.02401","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.02401","created_at":"2026-07-04T23:55:48Z"},{"alias_kind":"arxiv_version","alias_value":"1908.02401v1","created_at":"2026-07-04T23:55:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.02401","created_at":"2026-07-04T23:55:48Z"},{"alias_kind":"pith_short_12","alias_value":"6QIOE2HYPRLS","created_at":"2026-07-04T23:55:48Z"},{"alias_kind":"pith_short_16","alias_value":"6QIOE2HYPRLS7HXM","created_at":"2026-07-04T23:55:48Z"},{"alias_kind":"pith_short_8","alias_value":"6QIOE2HY","created_at":"2026-07-04T23:55:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:6QIOE2HYPRLS7HXMOGQDG6IGM5","target":"record","payload":{"canonical_record":{"source":{"id":"1908.02401","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-08-06T23:51:56Z","cross_cats_sorted":[],"title_canon_sha256":"f06bd081931474c1c2331ef654c89b6b2bfa468f87ba23d9841c536027a7ce3d","abstract_canon_sha256":"245414a56bc6a42618ed0ce1d8cd3bbffc64b634a782df47b6fbf3fa35d97ce6"},"schema_version":"1.0"},"canonical_sha256":"f410e268f87c572f9eec71a03379066741392179a31580a2835a1073eb447485","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:55:48.897631Z","signature_b64":"Hd/dj9X3pkuN4W04qYpMJEGZG0tjx/DqmNGhytRSYtocDVauN1KoRpetGPA+waRRZs0VIc54z/sUV1qgxTWDCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f410e268f87c572f9eec71a03379066741392179a31580a2835a1073eb447485","last_reissued_at":"2026-07-04T23:55:48.897181Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:55:48.897181Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.02401","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":"2026-07-04T23:55:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Bjpmyptm644RGcyrXjYWu6JjIYy5irTu+WImW5e8XkXbLi8lhzKgdmFaJutWR8m4TBmKZ6Xamy5r47coF06lBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T12:32:06.133686Z"},"content_sha256":"672e6ddb21293321f77a2dae4646182bb0231e74c9c4c62d56c92231929d711f","schema_version":"1.0","event_id":"sha256:672e6ddb21293321f77a2dae4646182bb0231e74c9c4c62d56c92231929d711f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:6QIOE2HYPRLS7HXMOGQDG6IGM5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Hubble-Lema\\^{i}tre constant and sound horizon from low-redshift probes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Adriano Agnello, Rados{\\l}aw Wojtak","submitted_at":"2019-08-06T23:51:56Z","abstract_excerpt":"We revisit the claimed tension, or lack thereof, of measured values of the Hubble-Lema\\^{i}tre parameter $H_0$ from Cosmic Microwave Background (CMB) data and low-redshift indicators. Baryon Acoustic Oscillations (BAO) rely on the scale of the sound horizon at recombination $r_s$ to convert angular measurements into angular-diameter distances, so fixing $r_s$ from CMB measurements already constrains $H_0.$ If departures from concordance cosmology are to be constrained, truly independent measurements of $H_0$ are needed. We use the angular-diameter distances to three time-delay lenses from the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.02401","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/1908.02401/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":"2026-07-04T23:55:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Bp1dPEuNM771nFK1TaOiCKuxOawO+Wycfbc5F0OUDhDLdgkr6NtvG3aR0TEl3UGKLZbIpVlL4yzFzIHTTsW1Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T12:32:06.134520Z"},"content_sha256":"633fcfa543f98c985c6107abc6d84e940564d692a0b67d39dfed78be25b419a2","schema_version":"1.0","event_id":"sha256:633fcfa543f98c985c6107abc6d84e940564d692a0b67d39dfed78be25b419a2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6QIOE2HYPRLS7HXMOGQDG6IGM5/bundle.json","state_url":"https://pith.science/pith/6QIOE2HYPRLS7HXMOGQDG6IGM5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6QIOE2HYPRLS7HXMOGQDG6IGM5/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":"2026-08-15T12:32:06Z","links":{"resolver":"https://pith.science/pith/6QIOE2HYPRLS7HXMOGQDG6IGM5","bundle":"https://pith.science/pith/6QIOE2HYPRLS7HXMOGQDG6IGM5/bundle.json","state":"https://pith.science/pith/6QIOE2HYPRLS7HXMOGQDG6IGM5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6QIOE2HYPRLS7HXMOGQDG6IGM5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:6QIOE2HYPRLS7HXMOGQDG6IGM5","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":"245414a56bc6a42618ed0ce1d8cd3bbffc64b634a782df47b6fbf3fa35d97ce6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-08-06T23:51:56Z","title_canon_sha256":"f06bd081931474c1c2331ef654c89b6b2bfa468f87ba23d9841c536027a7ce3d"},"schema_version":"1.0","source":{"id":"1908.02401","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.02401","created_at":"2026-07-04T23:55:48Z"},{"alias_kind":"arxiv_version","alias_value":"1908.02401v1","created_at":"2026-07-04T23:55:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.02401","created_at":"2026-07-04T23:55:48Z"},{"alias_kind":"pith_short_12","alias_value":"6QIOE2HYPRLS","created_at":"2026-07-04T23:55:48Z"},{"alias_kind":"pith_short_16","alias_value":"6QIOE2HYPRLS7HXM","created_at":"2026-07-04T23:55:48Z"},{"alias_kind":"pith_short_8","alias_value":"6QIOE2HY","created_at":"2026-07-04T23:55:48Z"}],"graph_snapshots":[{"event_id":"sha256:633fcfa543f98c985c6107abc6d84e940564d692a0b67d39dfed78be25b419a2","target":"graph","created_at":"2026-07-04T23:55:48Z","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/1908.02401/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We revisit the claimed tension, or lack thereof, of measured values of the Hubble-Lema\\^{i}tre parameter $H_0$ from Cosmic Microwave Background (CMB) data and low-redshift indicators. Baryon Acoustic Oscillations (BAO) rely on the scale of the sound horizon at recombination $r_s$ to convert angular measurements into angular-diameter distances, so fixing $r_s$ from CMB measurements already constrains $H_0.$ If departures from concordance cosmology are to be constrained, truly independent measurements of $H_0$ are needed. We use the angular-diameter distances to three time-delay lenses from the ","authors_text":"Adriano Agnello, Rados{\\l}aw Wojtak","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-08-06T23:51:56Z","title":"The Hubble-Lema\\^{i}tre constant and sound horizon from low-redshift probes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.02401","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":"sha256:672e6ddb21293321f77a2dae4646182bb0231e74c9c4c62d56c92231929d711f","target":"record","created_at":"2026-07-04T23:55:48Z","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":"245414a56bc6a42618ed0ce1d8cd3bbffc64b634a782df47b6fbf3fa35d97ce6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-08-06T23:51:56Z","title_canon_sha256":"f06bd081931474c1c2331ef654c89b6b2bfa468f87ba23d9841c536027a7ce3d"},"schema_version":"1.0","source":{"id":"1908.02401","kind":"arxiv","version":1}},"canonical_sha256":"f410e268f87c572f9eec71a03379066741392179a31580a2835a1073eb447485","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f410e268f87c572f9eec71a03379066741392179a31580a2835a1073eb447485","first_computed_at":"2026-07-04T23:55:48.897181Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:55:48.897181Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Hd/dj9X3pkuN4W04qYpMJEGZG0tjx/DqmNGhytRSYtocDVauN1KoRpetGPA+waRRZs0VIc54z/sUV1qgxTWDCQ==","signature_status":"signed_v1","signed_at":"2026-07-04T23:55:48.897631Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.02401","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:672e6ddb21293321f77a2dae4646182bb0231e74c9c4c62d56c92231929d711f","sha256:633fcfa543f98c985c6107abc6d84e940564d692a0b67d39dfed78be25b419a2"],"state_sha256":"a52d3271c2a5fdd3e81ee8e6ed02565f87198f80c70d31f85e95f59c035c6daa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"saosZ4kQe7YbGdbgEgvQsxRPfNIKmt+3s3xTrggbtqQSkKbKG+nS0s+tff7vlfCo3+cQx7OtY8peq5fdq5rBAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T12:32:06.141428Z","bundle_sha256":"646cc676c52df62a08002826d2b52e157a5f2cf26cc11a8a911b52bbc4f778ba"}}