{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:YGXJSLM2ZLMFZKGPXCOTRGN2GE","short_pith_number":"pith:YGXJSLM2","canonical_record":{"source":{"id":"1905.12000","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-05-28T18:00:50Z","cross_cats_sorted":[],"title_canon_sha256":"ddb133588aae97be9b4a8446187489410336d6adc936a85108c781e913eedf0a","abstract_canon_sha256":"ba0095dccfd00dcb325845b456027b68d3ef9111ca9d609096cb43505259217c"},"schema_version":"1.0"},"canonical_sha256":"c1ae992d9acad85ca8cfb89d3899ba3114a94de9ea71507d5513f2c0d58de43e","source":{"kind":"arxiv","id":"1905.12000","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.12000","created_at":"2026-07-05T00:42:19Z"},{"alias_kind":"arxiv_version","alias_value":"1905.12000v3","created_at":"2026-07-05T00:42:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.12000","created_at":"2026-07-05T00:42:19Z"},{"alias_kind":"pith_short_12","alias_value":"YGXJSLM2ZLMF","created_at":"2026-07-05T00:42:19Z"},{"alias_kind":"pith_short_16","alias_value":"YGXJSLM2ZLMFZKGP","created_at":"2026-07-05T00:42:19Z"},{"alias_kind":"pith_short_8","alias_value":"YGXJSLM2","created_at":"2026-07-05T00:42:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:YGXJSLM2ZLMFZKGPXCOTRGN2GE","target":"record","payload":{"canonical_record":{"source":{"id":"1905.12000","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-05-28T18:00:50Z","cross_cats_sorted":[],"title_canon_sha256":"ddb133588aae97be9b4a8446187489410336d6adc936a85108c781e913eedf0a","abstract_canon_sha256":"ba0095dccfd00dcb325845b456027b68d3ef9111ca9d609096cb43505259217c"},"schema_version":"1.0"},"canonical_sha256":"c1ae992d9acad85ca8cfb89d3899ba3114a94de9ea71507d5513f2c0d58de43e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:42:19.258219Z","signature_b64":"aMVpkaWCohDBJ2wnfe6Jdv7F2u/EPyKPo3Xu9l5rx82roCNiEcncK4ua5K0611fNh+/AhkrUxcs076hm+8PLDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c1ae992d9acad85ca8cfb89d3899ba3114a94de9ea71507d5513f2c0d58de43e","last_reissued_at":"2026-07-05T00:42:19.257650Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:42:19.257650Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1905.12000","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T00:42:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8ucRDA5HFssL49FGXmjbVU0hQMugf2vcrot1UwO0iqOUkoa9p1jLcLq5Yy93NjMoNQRN6skMqkJAEn05DqEmBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T07:33:34.348304Z"},"content_sha256":"74d71839f1f5f94108e15ce399f722245dff8fe047af655e720ea7c58b787fac","schema_version":"1.0","event_id":"sha256:74d71839f1f5f94108e15ce399f722245dff8fe047af655e720ea7c58b787fac"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:YGXJSLM2ZLMFZKGPXCOTRGN2GE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Low-redshift measurement of the sound horizon through gravitational time-delays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Adriano Agnello, Nikki Arendse, Rados{\\l}aw Wojtak","submitted_at":"2019-05-28T18:00:50Z","abstract_excerpt":"The matter sound horizon can be inferred from the cosmic microwave background within the Standard Model. Independent direct measurements of the sound horizon are then a probe of possible deviations from the Standard Model. We aim at measuring the sound horizon $r_s$ from low-redshift indicators, which are completely independent of CMB inference. We used the measured product $H(z)r_s$ from baryon acoustic oscillations (BAO) together with supernovae~\\textsc{I}a to constrain $H(z)/H_{0}$ and time-delay lenses analysed by the H0LiCOW collaboration to anchor cosmological distances ($\\propto H_{0}^{"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.12000","kind":"arxiv","version":3},"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/1905.12000/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":"2026-07-05T00:42:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kMss7qCu31GTpdoEyi+NZtozGa7Tt9D0Tm++z+bu4wRJTUmiiJ2mTVGZwhcHOMhu7g0xuoazKOiXUDwq/YcACg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T07:33:34.350327Z"},"content_sha256":"38dbd5373cd27b44bffdfa88c71e2cd7201790594bdf2660dc614c052ed9dcba","schema_version":"1.0","event_id":"sha256:38dbd5373cd27b44bffdfa88c71e2cd7201790594bdf2660dc614c052ed9dcba"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YGXJSLM2ZLMFZKGPXCOTRGN2GE/bundle.json","state_url":"https://pith.science/pith/YGXJSLM2ZLMFZKGPXCOTRGN2GE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YGXJSLM2ZLMFZKGPXCOTRGN2GE/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":"2026-08-15T07:33:34Z","links":{"resolver":"https://pith.science/pith/YGXJSLM2ZLMFZKGPXCOTRGN2GE","bundle":"https://pith.science/pith/YGXJSLM2ZLMFZKGPXCOTRGN2GE/bundle.json","state":"https://pith.science/pith/YGXJSLM2ZLMFZKGPXCOTRGN2GE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YGXJSLM2ZLMFZKGPXCOTRGN2GE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:YGXJSLM2ZLMFZKGPXCOTRGN2GE","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":"ba0095dccfd00dcb325845b456027b68d3ef9111ca9d609096cb43505259217c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-05-28T18:00:50Z","title_canon_sha256":"ddb133588aae97be9b4a8446187489410336d6adc936a85108c781e913eedf0a"},"schema_version":"1.0","source":{"id":"1905.12000","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.12000","created_at":"2026-07-05T00:42:19Z"},{"alias_kind":"arxiv_version","alias_value":"1905.12000v3","created_at":"2026-07-05T00:42:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.12000","created_at":"2026-07-05T00:42:19Z"},{"alias_kind":"pith_short_12","alias_value":"YGXJSLM2ZLMF","created_at":"2026-07-05T00:42:19Z"},{"alias_kind":"pith_short_16","alias_value":"YGXJSLM2ZLMFZKGP","created_at":"2026-07-05T00:42:19Z"},{"alias_kind":"pith_short_8","alias_value":"YGXJSLM2","created_at":"2026-07-05T00:42:19Z"}],"graph_snapshots":[{"event_id":"sha256:38dbd5373cd27b44bffdfa88c71e2cd7201790594bdf2660dc614c052ed9dcba","target":"graph","created_at":"2026-07-05T00:42:19Z","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/1905.12000/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The matter sound horizon can be inferred from the cosmic microwave background within the Standard Model. Independent direct measurements of the sound horizon are then a probe of possible deviations from the Standard Model. We aim at measuring the sound horizon $r_s$ from low-redshift indicators, which are completely independent of CMB inference. We used the measured product $H(z)r_s$ from baryon acoustic oscillations (BAO) together with supernovae~\\textsc{I}a to constrain $H(z)/H_{0}$ and time-delay lenses analysed by the H0LiCOW collaboration to anchor cosmological distances ($\\propto H_{0}^{","authors_text":"Adriano Agnello, Nikki Arendse, Rados{\\l}aw Wojtak","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-05-28T18:00:50Z","title":"Low-redshift measurement of the sound horizon through gravitational time-delays"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.12000","kind":"arxiv","version":3},"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":"sha256:74d71839f1f5f94108e15ce399f722245dff8fe047af655e720ea7c58b787fac","target":"record","created_at":"2026-07-05T00:42:19Z","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":"ba0095dccfd00dcb325845b456027b68d3ef9111ca9d609096cb43505259217c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-05-28T18:00:50Z","title_canon_sha256":"ddb133588aae97be9b4a8446187489410336d6adc936a85108c781e913eedf0a"},"schema_version":"1.0","source":{"id":"1905.12000","kind":"arxiv","version":3}},"canonical_sha256":"c1ae992d9acad85ca8cfb89d3899ba3114a94de9ea71507d5513f2c0d58de43e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c1ae992d9acad85ca8cfb89d3899ba3114a94de9ea71507d5513f2c0d58de43e","first_computed_at":"2026-07-05T00:42:19.257650Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:42:19.257650Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aMVpkaWCohDBJ2wnfe6Jdv7F2u/EPyKPo3Xu9l5rx82roCNiEcncK4ua5K0611fNh+/AhkrUxcs076hm+8PLDg==","signature_status":"signed_v1","signed_at":"2026-07-05T00:42:19.258219Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.12000","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:74d71839f1f5f94108e15ce399f722245dff8fe047af655e720ea7c58b787fac","sha256:38dbd5373cd27b44bffdfa88c71e2cd7201790594bdf2660dc614c052ed9dcba"],"state_sha256":"af25da55cb6f051c0eab7a0a76b04184575e4e53e13489b76d560367df30df8d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vlHq2SoRoM58LaQTDtITANXAMhNiEhYEPJOOorqMRMMLTAu30GidqQeaw0hb4cOuGznCc1xRYBT9a3LE5dv8CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T07:33:34.365867Z","bundle_sha256":"ea9cf2079c8c7ee47f170229fa545538d8ce5d52777af3ec4b8e58532474568c"}}