{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:UA2DREMIQWYAM2R2FJMEAX2YOF","short_pith_number":"pith:UA2DREMI","canonical_record":{"source":{"id":"2108.13228","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-08-30T13:26:35Z","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"title_canon_sha256":"0e9a75b8f51c1c826b05816eb832cffa0326a1a6c346a7ba86be681f05b08f5a","abstract_canon_sha256":"2665b6eae0d85b3017594be2ddc312a5a639d225db2d8f02cf37fbd936ba1c77"},"schema_version":"1.0"},"canonical_sha256":"a03438918885b0066a3a2a58405f5871760d5ee5853cb370a542c4460d2f907c","source":{"kind":"arxiv","id":"2108.13228","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.13228","created_at":"2026-07-05T04:25:45Z"},{"alias_kind":"arxiv_version","alias_value":"2108.13228v3","created_at":"2026-07-05T04:25:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.13228","created_at":"2026-07-05T04:25:45Z"},{"alias_kind":"pith_short_12","alias_value":"UA2DREMIQWYA","created_at":"2026-07-05T04:25:45Z"},{"alias_kind":"pith_short_16","alias_value":"UA2DREMIQWYAM2R2","created_at":"2026-07-05T04:25:45Z"},{"alias_kind":"pith_short_8","alias_value":"UA2DREMI","created_at":"2026-07-05T04:25:45Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:UA2DREMIQWYAM2R2FJMEAX2YOF","target":"record","payload":{"canonical_record":{"source":{"id":"2108.13228","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-08-30T13:26:35Z","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"title_canon_sha256":"0e9a75b8f51c1c826b05816eb832cffa0326a1a6c346a7ba86be681f05b08f5a","abstract_canon_sha256":"2665b6eae0d85b3017594be2ddc312a5a639d225db2d8f02cf37fbd936ba1c77"},"schema_version":"1.0"},"canonical_sha256":"a03438918885b0066a3a2a58405f5871760d5ee5853cb370a542c4460d2f907c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:25:45.237631Z","signature_b64":"+DHCoZckkvm88d66Bx9pf9Mout/xB46IOLlNGKVDp0mztEAxCD9EwmxfGLOdiJWpWQsP11yhLoqpLIHw8HUvCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a03438918885b0066a3a2a58405f5871760d5ee5853cb370a542c4460d2f907c","last_reissued_at":"2026-07-05T04:25:45.237146Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:25:45.237146Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2108.13228","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":"2026-07-05T04:25:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HaXnyj2JW8TW6Mlj3biOPJJtyx48/6nkkudBvULjgYqOmjlUjI1dL9O6Xvkx0KMfD1gpPuYDu3+JP9xn9L3PCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-11T14:10:20.769133Z"},"content_sha256":"27ed383fe46ac9f5f6f996fa0e2a81105bd508fc766b980881d7c7a8b64957c1","schema_version":"1.0","event_id":"sha256:27ed383fe46ac9f5f6f996fa0e2a81105bd508fc766b980881d7c7a8b64957c1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:UA2DREMIQWYAM2R2FJMEAX2YOF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On Larger $H_0$ Values in the CMB Dipole Direction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-ph","hep-th"],"primary_cat":"astro-ph.CO","authors_text":"Eoin \\'O Colg\\'ain, Lu Yin, Marco Muccino, M. M. Sheikh-Jabbari, Orlando Luongo","submitted_at":"2021-08-30T13:26:35Z","abstract_excerpt":"On the assumption that quasars (QSO) and gamma-ray bursts (GRB) represent \\textit{standardisable candles}, we provide evidence that the Hubble constant $H_0$ adopts larger values in hemispheres aligned with the CMB dipole direction. If substantiated, this trend signals a departure from FLRW cosmology. In particular, QSOs show a definite trend, whereas our findings in GRBs are consistent with an isotropic Universe, but we show in a sample of GRBs calibrated with Type Ia supernovae (SN) that this conclusion may change as one focuses on GRBs more closely (mis)aligned with the CMB dipole direction"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.13228","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/2108.13228/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":"2026-07-05T04:25:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tbfrKn/uuaMt5epoosZ2giEtLFfjohpgkva1pi+rtuWge8D7ZbrEvfJQAcRCH1BxrKv8KOjxrlXvAAqZ9MZLCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-11T14:10:20.769528Z"},"content_sha256":"f1a2d76bab87d4e4b61854718fd51286f07775a3429bcf7a33ebb35f7c952f3e","schema_version":"1.0","event_id":"sha256:f1a2d76bab87d4e4b61854718fd51286f07775a3429bcf7a33ebb35f7c952f3e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UA2DREMIQWYAM2R2FJMEAX2YOF/bundle.json","state_url":"https://pith.science/pith/UA2DREMIQWYAM2R2FJMEAX2YOF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UA2DREMIQWYAM2R2FJMEAX2YOF/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":"2026-07-11T14:10:20Z","links":{"resolver":"https://pith.science/pith/UA2DREMIQWYAM2R2FJMEAX2YOF","bundle":"https://pith.science/pith/UA2DREMIQWYAM2R2FJMEAX2YOF/bundle.json","state":"https://pith.science/pith/UA2DREMIQWYAM2R2FJMEAX2YOF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UA2DREMIQWYAM2R2FJMEAX2YOF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:UA2DREMIQWYAM2R2FJMEAX2YOF","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":"2665b6eae0d85b3017594be2ddc312a5a639d225db2d8f02cf37fbd936ba1c77","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-08-30T13:26:35Z","title_canon_sha256":"0e9a75b8f51c1c826b05816eb832cffa0326a1a6c346a7ba86be681f05b08f5a"},"schema_version":"1.0","source":{"id":"2108.13228","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.13228","created_at":"2026-07-05T04:25:45Z"},{"alias_kind":"arxiv_version","alias_value":"2108.13228v3","created_at":"2026-07-05T04:25:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.13228","created_at":"2026-07-05T04:25:45Z"},{"alias_kind":"pith_short_12","alias_value":"UA2DREMIQWYA","created_at":"2026-07-05T04:25:45Z"},{"alias_kind":"pith_short_16","alias_value":"UA2DREMIQWYAM2R2","created_at":"2026-07-05T04:25:45Z"},{"alias_kind":"pith_short_8","alias_value":"UA2DREMI","created_at":"2026-07-05T04:25:45Z"}],"graph_snapshots":[{"event_id":"sha256:f1a2d76bab87d4e4b61854718fd51286f07775a3429bcf7a33ebb35f7c952f3e","target":"graph","created_at":"2026-07-05T04:25:45Z","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/2108.13228/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"On the assumption that quasars (QSO) and gamma-ray bursts (GRB) represent \\textit{standardisable candles}, we provide evidence that the Hubble constant $H_0$ adopts larger values in hemispheres aligned with the CMB dipole direction. If substantiated, this trend signals a departure from FLRW cosmology. In particular, QSOs show a definite trend, whereas our findings in GRBs are consistent with an isotropic Universe, but we show in a sample of GRBs calibrated with Type Ia supernovae (SN) that this conclusion may change as one focuses on GRBs more closely (mis)aligned with the CMB dipole direction","authors_text":"Eoin \\'O Colg\\'ain, Lu Yin, Marco Muccino, M. M. Sheikh-Jabbari, Orlando Luongo","cross_cats":["gr-qc","hep-ph","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-08-30T13:26:35Z","title":"On Larger $H_0$ Values in the CMB Dipole Direction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.13228","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":"sha256:27ed383fe46ac9f5f6f996fa0e2a81105bd508fc766b980881d7c7a8b64957c1","target":"record","created_at":"2026-07-05T04:25:45Z","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":"2665b6eae0d85b3017594be2ddc312a5a639d225db2d8f02cf37fbd936ba1c77","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-08-30T13:26:35Z","title_canon_sha256":"0e9a75b8f51c1c826b05816eb832cffa0326a1a6c346a7ba86be681f05b08f5a"},"schema_version":"1.0","source":{"id":"2108.13228","kind":"arxiv","version":3}},"canonical_sha256":"a03438918885b0066a3a2a58405f5871760d5ee5853cb370a542c4460d2f907c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a03438918885b0066a3a2a58405f5871760d5ee5853cb370a542c4460d2f907c","first_computed_at":"2026-07-05T04:25:45.237146Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:25:45.237146Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+DHCoZckkvm88d66Bx9pf9Mout/xB46IOLlNGKVDp0mztEAxCD9EwmxfGLOdiJWpWQsP11yhLoqpLIHw8HUvCw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:25:45.237631Z","signed_message":"canonical_sha256_bytes"},"source_id":"2108.13228","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:27ed383fe46ac9f5f6f996fa0e2a81105bd508fc766b980881d7c7a8b64957c1","sha256:f1a2d76bab87d4e4b61854718fd51286f07775a3429bcf7a33ebb35f7c952f3e"],"state_sha256":"5641115aad3a973c3d42cd4c184ce1e1a13ba5e3a7ab3113663ab6e26f1110bd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"36opAXtjf98e33rzoseG+0xDfwCHC3G/Wsewsp8hIrYPZEEdBlw7MKF0bXnO22G4CTiwZqi9Fszaj8WYJFLgCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-11T14:10:20.771728Z","bundle_sha256":"f3e68807d39ab68154c0fe4184d8d216756ea8d9da5941c7d225808676fb71ff"}}