{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:FTS466QO7ETVD3GPAZEWVKHNXN","short_pith_number":"pith:FTS466QO","canonical_record":{"source":{"id":"1804.09906","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-04-26T06:30:57Z","cross_cats_sorted":["astro-ph.HE","gr-qc","hep-ph"],"title_canon_sha256":"a97e10685ad4fc9460dddb1205b81145830159ff65bd5bb3f80b792b6b5050b4","abstract_canon_sha256":"83d7a2e36e0f12aa64e3c606ed128f0019010721f2fe2a8ab475ac92edfbfdfe"},"schema_version":"1.0"},"canonical_sha256":"2ce5cf7a0ef92751eccf06496aa8edbb5117394db8e3aba83894d7269447f605","source":{"kind":"arxiv","id":"1804.09906","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.09906","created_at":"2026-05-18T00:00:35Z"},{"alias_kind":"arxiv_version","alias_value":"1804.09906v2","created_at":"2026-05-18T00:00:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.09906","created_at":"2026-05-18T00:00:35Z"},{"alias_kind":"pith_short_12","alias_value":"FTS466QO7ETV","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"FTS466QO7ETVD3GP","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"FTS466QO","created_at":"2026-05-18T12:32:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:FTS466QO7ETVD3GPAZEWVKHNXN","target":"record","payload":{"canonical_record":{"source":{"id":"1804.09906","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-04-26T06:30:57Z","cross_cats_sorted":["astro-ph.HE","gr-qc","hep-ph"],"title_canon_sha256":"a97e10685ad4fc9460dddb1205b81145830159ff65bd5bb3f80b792b6b5050b4","abstract_canon_sha256":"83d7a2e36e0f12aa64e3c606ed128f0019010721f2fe2a8ab475ac92edfbfdfe"},"schema_version":"1.0"},"canonical_sha256":"2ce5cf7a0ef92751eccf06496aa8edbb5117394db8e3aba83894d7269447f605","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:00:35.235847Z","signature_b64":"dvvLn7f7040PZ7yFo8m9NoCEb+JopTg39lGTGsEtQHgUi+b7betfKT6GyAHcH4pkecSYny2vji2GA0L1QSqxBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2ce5cf7a0ef92751eccf06496aa8edbb5117394db8e3aba83894d7269447f605","last_reissued_at":"2026-05-18T00:00:35.235413Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:00:35.235413Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.09906","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:00:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ByYupLNStmeIpW2d5fNqVjaxxgIITVMqSy55qxERVRyfw/rSZ2kFzrmanYdpSzs8WRrNv6SpmU8+0mB6wzVJBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T02:04:50.518227Z"},"content_sha256":"b4ecf8c4746690f05d0aed0372e949f45adec44ed45d4036353570634aa2f0b9","schema_version":"1.0","event_id":"sha256:b4ecf8c4746690f05d0aed0372e949f45adec44ed45d4036353570634aa2f0b9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:FTS466QO7ETVD3GPAZEWVKHNXN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A comparison of the R_h=ct and LCDM cosmologies using the Cosmic Distance Duality Relation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","gr-qc","hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"Fulvio Melia","submitted_at":"2018-04-26T06:30:57Z","abstract_excerpt":"The cosmic distance duality (CDD) relation (based on the Etherington reciprocity theorem) plays a crucial role in a wide assortment of cosmological measurements. Attempts at confirming it observationally have met with mixed results, though the general consensus appears to be that the data do support its existence in nature. A common limitation with past approaches has been their reliance on a specific cosmological model, or on measurements of the luminosity distance to Type Ia SNe, which introduces a dependence on the presumed cosmology in spite of beliefs to the contrary. Confirming that the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.09906","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-18T00:00:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IAJYMKAPm9GN9T5k8Ta1UNV6n9i/LVkXQ6zvVttKpzT2SFwRMTh8bmrLXZ+5BaNX16JjAzD/irtiEP9YYVBdAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T02:04:50.518715Z"},"content_sha256":"792b5dd4e95895133244937c5ac20b76faf179908395d2d3d83ece7439b0c427","schema_version":"1.0","event_id":"sha256:792b5dd4e95895133244937c5ac20b76faf179908395d2d3d83ece7439b0c427"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FTS466QO7ETVD3GPAZEWVKHNXN/bundle.json","state_url":"https://pith.science/pith/FTS466QO7ETVD3GPAZEWVKHNXN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FTS466QO7ETVD3GPAZEWVKHNXN/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":"2026-08-18T02:04:50Z","links":{"resolver":"https://pith.science/pith/FTS466QO7ETVD3GPAZEWVKHNXN","bundle":"https://pith.science/pith/FTS466QO7ETVD3GPAZEWVKHNXN/bundle.json","state":"https://pith.science/pith/FTS466QO7ETVD3GPAZEWVKHNXN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FTS466QO7ETVD3GPAZEWVKHNXN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:FTS466QO7ETVD3GPAZEWVKHNXN","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":"83d7a2e36e0f12aa64e3c606ed128f0019010721f2fe2a8ab475ac92edfbfdfe","cross_cats_sorted":["astro-ph.HE","gr-qc","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-04-26T06:30:57Z","title_canon_sha256":"a97e10685ad4fc9460dddb1205b81145830159ff65bd5bb3f80b792b6b5050b4"},"schema_version":"1.0","source":{"id":"1804.09906","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.09906","created_at":"2026-05-18T00:00:35Z"},{"alias_kind":"arxiv_version","alias_value":"1804.09906v2","created_at":"2026-05-18T00:00:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.09906","created_at":"2026-05-18T00:00:35Z"},{"alias_kind":"pith_short_12","alias_value":"FTS466QO7ETV","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"FTS466QO7ETVD3GP","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"FTS466QO","created_at":"2026-05-18T12:32:25Z"}],"graph_snapshots":[{"event_id":"sha256:792b5dd4e95895133244937c5ac20b76faf179908395d2d3d83ece7439b0c427","target":"graph","created_at":"2026-05-18T00:00:35Z","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"},"paper":{"abstract_excerpt":"The cosmic distance duality (CDD) relation (based on the Etherington reciprocity theorem) plays a crucial role in a wide assortment of cosmological measurements. Attempts at confirming it observationally have met with mixed results, though the general consensus appears to be that the data do support its existence in nature. A common limitation with past approaches has been their reliance on a specific cosmological model, or on measurements of the luminosity distance to Type Ia SNe, which introduces a dependence on the presumed cosmology in spite of beliefs to the contrary. Confirming that the ","authors_text":"Fulvio Melia","cross_cats":["astro-ph.HE","gr-qc","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-04-26T06:30:57Z","title":"A comparison of the R_h=ct and LCDM cosmologies using the Cosmic Distance Duality Relation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.09906","kind":"arxiv","version":2},"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:b4ecf8c4746690f05d0aed0372e949f45adec44ed45d4036353570634aa2f0b9","target":"record","created_at":"2026-05-18T00:00:35Z","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":"83d7a2e36e0f12aa64e3c606ed128f0019010721f2fe2a8ab475ac92edfbfdfe","cross_cats_sorted":["astro-ph.HE","gr-qc","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-04-26T06:30:57Z","title_canon_sha256":"a97e10685ad4fc9460dddb1205b81145830159ff65bd5bb3f80b792b6b5050b4"},"schema_version":"1.0","source":{"id":"1804.09906","kind":"arxiv","version":2}},"canonical_sha256":"2ce5cf7a0ef92751eccf06496aa8edbb5117394db8e3aba83894d7269447f605","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2ce5cf7a0ef92751eccf06496aa8edbb5117394db8e3aba83894d7269447f605","first_computed_at":"2026-05-18T00:00:35.235413Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:00:35.235413Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dvvLn7f7040PZ7yFo8m9NoCEb+JopTg39lGTGsEtQHgUi+b7betfKT6GyAHcH4pkecSYny2vji2GA0L1QSqxBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:00:35.235847Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.09906","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b4ecf8c4746690f05d0aed0372e949f45adec44ed45d4036353570634aa2f0b9","sha256:792b5dd4e95895133244937c5ac20b76faf179908395d2d3d83ece7439b0c427"],"state_sha256":"791fff5ca607731f9f892ca6b69e55981a2580900111b4aa77f3fb97ad2863b9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gyK6cTpioyxAvxbz07HVWWlx6Ts+ta+437ZLqagZHg+/Dia10Q2f2RXxD3bbctG6R3bDK+TU7unv3FWU8r/UCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T02:04:50.523478Z","bundle_sha256":"e7ad3ba8ad37cf568f34a7d3af59f1aa9f9b3d532c359468ecc9a9ab5be9dfab"}}