{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:3P2PPFMCXK3YTKK4LHDCIIAWAT","short_pith_number":"pith:3P2PPFMC","canonical_record":{"source":{"id":"1910.14024","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-10-30T02:44:57Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"f8ddb36d13e215c7ea07bdac0da202345799738786525fdff300a61517bcae9f","abstract_canon_sha256":"920fafd52f56db583975c4b9339fcc2a2489a40ad57f8896e5a0fa7d5a9f30d8"},"schema_version":"1.0"},"canonical_sha256":"dbf4f79582bab789a95c59c624201604d778b794908de68db6b65af719c0138e","source":{"kind":"arxiv","id":"1910.14024","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.14024","created_at":"2026-07-05T00:16:06Z"},{"alias_kind":"arxiv_version","alias_value":"1910.14024v1","created_at":"2026-07-05T00:16:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.14024","created_at":"2026-07-05T00:16:06Z"},{"alias_kind":"pith_short_12","alias_value":"3P2PPFMCXK3Y","created_at":"2026-07-05T00:16:06Z"},{"alias_kind":"pith_short_16","alias_value":"3P2PPFMCXK3YTKK4","created_at":"2026-07-05T00:16:06Z"},{"alias_kind":"pith_short_8","alias_value":"3P2PPFMC","created_at":"2026-07-05T00:16:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:3P2PPFMCXK3YTKK4LHDCIIAWAT","target":"record","payload":{"canonical_record":{"source":{"id":"1910.14024","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-10-30T02:44:57Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"f8ddb36d13e215c7ea07bdac0da202345799738786525fdff300a61517bcae9f","abstract_canon_sha256":"920fafd52f56db583975c4b9339fcc2a2489a40ad57f8896e5a0fa7d5a9f30d8"},"schema_version":"1.0"},"canonical_sha256":"dbf4f79582bab789a95c59c624201604d778b794908de68db6b65af719c0138e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:16:06.986404Z","signature_b64":"za5D81r0CoNmO+Vv8jmVltcRhVGPG/747vsReVaRghsmfPvjrj4Zs/S7sR0PDDPxoajrdhiv/AqQVw8Ai7hcBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dbf4f79582bab789a95c59c624201604d778b794908de68db6b65af719c0138e","last_reissued_at":"2026-07-05T00:16:06.985984Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:16:06.985984Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1910.14024","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":"2026-07-05T00:16:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M+6bc6k8Lipi8OXzpNhPHUrX+9eOpO3wpXEKr0akxi8Iz300B/dMNUhnX3BlX4eUztvK7VLCtcweGTPprcJWCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T22:03:23.151385Z"},"content_sha256":"806c6bc44dc4f10781c19bb1cf02281c53d637d9cba1c330b15e65d602b6f0a4","schema_version":"1.0","event_id":"sha256:806c6bc44dc4f10781c19bb1cf02281c53d637d9cba1c330b15e65d602b6f0a4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:3P2PPFMCXK3YTKK4LHDCIIAWAT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Testing the $R_{\\rm h}=ct$ Universe Jointly with the Redshift-dependent Expansion rate and Angular-diameter and Luminosity Distances","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"Fulvio Melia, Hao-Yi Wan, Shu-Lei Cao, Tong-Jie Zhang","submitted_at":"2019-10-30T02:44:57Z","abstract_excerpt":"We use three different data sets, specifically $H(z)$ measurements from cosmic chronometers, the HII-galaxy Hubble diagram, and reconstructed quasar-core angular-size measurements, to perform a joint analysis of three flat cosmological models: the $R_{\\rm h}=ct$ Universe, $\\Lambda$CDM, and $w$CDM. For $R_{\\rm h}=ct$, the 1$\\sigma$ best-fit value of the Hubble constant $H_0$ is $62.336\\pm1.464$ $\\mathrm{km \\ s^{-1} \\ Mpc^{-1}}$, which matches previous measurements ($\\sim 63$ $\\mathrm{km \\ s^{-1} \\ Mpc^{-1}}$) based on best fits to individual data sets. For $\\Lambda$CDM, our inferred value of th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.14024","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/1910.14024/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":"2026-07-05T00:16:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UOx43AoYIQAKlEvM7jhTY8gSSt+WS4o4j5TfcukAnHTSZzXAySNt8Tq2uoLgji55Un7TSKCueF7agYIfpT8kBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T22:03:23.152254Z"},"content_sha256":"6b1754041f90aa9c2db373a313baefc64779a6785febf5b50126e10c98c36e3b","schema_version":"1.0","event_id":"sha256:6b1754041f90aa9c2db373a313baefc64779a6785febf5b50126e10c98c36e3b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3P2PPFMCXK3YTKK4LHDCIIAWAT/bundle.json","state_url":"https://pith.science/pith/3P2PPFMCXK3YTKK4LHDCIIAWAT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3P2PPFMCXK3YTKK4LHDCIIAWAT/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":"2026-08-03T22:03:23Z","links":{"resolver":"https://pith.science/pith/3P2PPFMCXK3YTKK4LHDCIIAWAT","bundle":"https://pith.science/pith/3P2PPFMCXK3YTKK4LHDCIIAWAT/bundle.json","state":"https://pith.science/pith/3P2PPFMCXK3YTKK4LHDCIIAWAT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3P2PPFMCXK3YTKK4LHDCIIAWAT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:3P2PPFMCXK3YTKK4LHDCIIAWAT","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":"920fafd52f56db583975c4b9339fcc2a2489a40ad57f8896e5a0fa7d5a9f30d8","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-10-30T02:44:57Z","title_canon_sha256":"f8ddb36d13e215c7ea07bdac0da202345799738786525fdff300a61517bcae9f"},"schema_version":"1.0","source":{"id":"1910.14024","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.14024","created_at":"2026-07-05T00:16:06Z"},{"alias_kind":"arxiv_version","alias_value":"1910.14024v1","created_at":"2026-07-05T00:16:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.14024","created_at":"2026-07-05T00:16:06Z"},{"alias_kind":"pith_short_12","alias_value":"3P2PPFMCXK3Y","created_at":"2026-07-05T00:16:06Z"},{"alias_kind":"pith_short_16","alias_value":"3P2PPFMCXK3YTKK4","created_at":"2026-07-05T00:16:06Z"},{"alias_kind":"pith_short_8","alias_value":"3P2PPFMC","created_at":"2026-07-05T00:16:06Z"}],"graph_snapshots":[{"event_id":"sha256:6b1754041f90aa9c2db373a313baefc64779a6785febf5b50126e10c98c36e3b","target":"graph","created_at":"2026-07-05T00:16:06Z","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/1910.14024/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We use three different data sets, specifically $H(z)$ measurements from cosmic chronometers, the HII-galaxy Hubble diagram, and reconstructed quasar-core angular-size measurements, to perform a joint analysis of three flat cosmological models: the $R_{\\rm h}=ct$ Universe, $\\Lambda$CDM, and $w$CDM. For $R_{\\rm h}=ct$, the 1$\\sigma$ best-fit value of the Hubble constant $H_0$ is $62.336\\pm1.464$ $\\mathrm{km \\ s^{-1} \\ Mpc^{-1}}$, which matches previous measurements ($\\sim 63$ $\\mathrm{km \\ s^{-1} \\ Mpc^{-1}}$) based on best fits to individual data sets. For $\\Lambda$CDM, our inferred value of th","authors_text":"Fulvio Melia, Hao-Yi Wan, Shu-Lei Cao, Tong-Jie Zhang","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-10-30T02:44:57Z","title":"Testing the $R_{\\rm h}=ct$ Universe Jointly with the Redshift-dependent Expansion rate and Angular-diameter and Luminosity Distances"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.14024","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":"sha256:806c6bc44dc4f10781c19bb1cf02281c53d637d9cba1c330b15e65d602b6f0a4","target":"record","created_at":"2026-07-05T00:16:06Z","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":"920fafd52f56db583975c4b9339fcc2a2489a40ad57f8896e5a0fa7d5a9f30d8","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-10-30T02:44:57Z","title_canon_sha256":"f8ddb36d13e215c7ea07bdac0da202345799738786525fdff300a61517bcae9f"},"schema_version":"1.0","source":{"id":"1910.14024","kind":"arxiv","version":1}},"canonical_sha256":"dbf4f79582bab789a95c59c624201604d778b794908de68db6b65af719c0138e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dbf4f79582bab789a95c59c624201604d778b794908de68db6b65af719c0138e","first_computed_at":"2026-07-05T00:16:06.985984Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:16:06.985984Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"za5D81r0CoNmO+Vv8jmVltcRhVGPG/747vsReVaRghsmfPvjrj4Zs/S7sR0PDDPxoajrdhiv/AqQVw8Ai7hcBw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:16:06.986404Z","signed_message":"canonical_sha256_bytes"},"source_id":"1910.14024","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:806c6bc44dc4f10781c19bb1cf02281c53d637d9cba1c330b15e65d602b6f0a4","sha256:6b1754041f90aa9c2db373a313baefc64779a6785febf5b50126e10c98c36e3b"],"state_sha256":"c3921e83d742a26d0d48da83a2ecf97a69b7501e6e1f55999421aa63f0ada2ee"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CwjiWV736pS2Av61iDIegGLXZDrcL3zfi1tI7walCDRZzi1Zu7ryaPho1ZVoJ7WhGVqFd0dZnxa8w+i1w+ZMCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T22:03:23.157174Z","bundle_sha256":"2816500d7815353ea3d32ac2290e20e53f400f1ab4f4b9b45f87efb331494446"}}