{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:FK5SQZLWVWSSYMLV6QXJC2ISR2","short_pith_number":"pith:FK5SQZLW","canonical_record":{"source":{"id":"1705.00994","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-05-02T14:26:56Z","cross_cats_sorted":[],"title_canon_sha256":"1c7eee32cb5faedafbb287df54fcbc7b7a6bbec44668189b9b6eca38a544b0a7","abstract_canon_sha256":"d4842787d845c769e392b8f10e8c85e31a28fb5321c0cadcd0e06a78f8f7ab8f"},"schema_version":"1.0"},"canonical_sha256":"2abb286576ada52c3175f42e9169128eaf1921fd372bc6e43f79f945a38953ab","source":{"kind":"arxiv","id":"1705.00994","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.00994","created_at":"2026-05-18T00:45:09Z"},{"alias_kind":"arxiv_version","alias_value":"1705.00994v1","created_at":"2026-05-18T00:45:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.00994","created_at":"2026-05-18T00:45:09Z"},{"alias_kind":"pith_short_12","alias_value":"FK5SQZLWVWSS","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"FK5SQZLWVWSSYMLV","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"FK5SQZLW","created_at":"2026-05-18T12:31:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:FK5SQZLWVWSSYMLV6QXJC2ISR2","target":"record","payload":{"canonical_record":{"source":{"id":"1705.00994","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-05-02T14:26:56Z","cross_cats_sorted":[],"title_canon_sha256":"1c7eee32cb5faedafbb287df54fcbc7b7a6bbec44668189b9b6eca38a544b0a7","abstract_canon_sha256":"d4842787d845c769e392b8f10e8c85e31a28fb5321c0cadcd0e06a78f8f7ab8f"},"schema_version":"1.0"},"canonical_sha256":"2abb286576ada52c3175f42e9169128eaf1921fd372bc6e43f79f945a38953ab","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:45:09.148577Z","signature_b64":"NDoj5D20liOz6+Xn+jEr86QqwYiOS83YUpyM7kapyyhMuYsgqheTB0P5Y808ItgELn8Tzu9mKJ879w3RfkroBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2abb286576ada52c3175f42e9169128eaf1921fd372bc6e43f79f945a38953ab","last_reissued_at":"2026-05-18T00:45:09.147981Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:45:09.147981Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1705.00994","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":"2026-05-18T00:45:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Yr7tAqj9vaFw1Gnc6XlwlQDn6equE2N1BRr+eK2R6Oo3pSD/GniFmMP4koodgshEkVCNR2YZ9ZxCa/wtj739Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T18:28:05.819814Z"},"content_sha256":"5be1c372d355f9529c6376badd0259e4c5035f49d0ac1b3246d348a8c36b6213","schema_version":"1.0","event_id":"sha256:5be1c372d355f9529c6376badd0259e4c5035f49d0ac1b3246d348a8c36b6213"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:FK5SQZLWVWSSYMLV6QXJC2ISR2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Testing the Copernican principle with future radio-astronomy observations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Hertzog L. Bester, Julien Larena, Nigel T. Bishop","submitted_at":"2017-05-02T14:26:56Z","abstract_excerpt":"We use a direct observational approach to investigate the possibility of testing the Copernican principle with data from upcoming radio surveys. In particular we illustrate the importance of measuring derivatives transverse to the past light-cone when prior knowledge of the value of the cosmological constant is not available."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.00994","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":""},"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":"2026-05-18T00:45:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tKYPJdcf2TWHqKzvugxl3+FOXwMB+zhgrpcDqutCNlUlCUiaSNutb0SLYA7mFBJK0soX6s4RjrM6g9T6u7IeBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T18:28:05.820533Z"},"content_sha256":"8b9f9078027734a0aff85f7cd8e275b01b0028436fc3f4b56d7e711a70132ba5","schema_version":"1.0","event_id":"sha256:8b9f9078027734a0aff85f7cd8e275b01b0028436fc3f4b56d7e711a70132ba5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FK5SQZLWVWSSYMLV6QXJC2ISR2/bundle.json","state_url":"https://pith.science/pith/FK5SQZLWVWSSYMLV6QXJC2ISR2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FK5SQZLWVWSSYMLV6QXJC2ISR2/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":"2026-05-27T18:28:05Z","links":{"resolver":"https://pith.science/pith/FK5SQZLWVWSSYMLV6QXJC2ISR2","bundle":"https://pith.science/pith/FK5SQZLWVWSSYMLV6QXJC2ISR2/bundle.json","state":"https://pith.science/pith/FK5SQZLWVWSSYMLV6QXJC2ISR2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FK5SQZLWVWSSYMLV6QXJC2ISR2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:FK5SQZLWVWSSYMLV6QXJC2ISR2","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":"d4842787d845c769e392b8f10e8c85e31a28fb5321c0cadcd0e06a78f8f7ab8f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-05-02T14:26:56Z","title_canon_sha256":"1c7eee32cb5faedafbb287df54fcbc7b7a6bbec44668189b9b6eca38a544b0a7"},"schema_version":"1.0","source":{"id":"1705.00994","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.00994","created_at":"2026-05-18T00:45:09Z"},{"alias_kind":"arxiv_version","alias_value":"1705.00994v1","created_at":"2026-05-18T00:45:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.00994","created_at":"2026-05-18T00:45:09Z"},{"alias_kind":"pith_short_12","alias_value":"FK5SQZLWVWSS","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"FK5SQZLWVWSSYMLV","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"FK5SQZLW","created_at":"2026-05-18T12:31:15Z"}],"graph_snapshots":[{"event_id":"sha256:8b9f9078027734a0aff85f7cd8e275b01b0028436fc3f4b56d7e711a70132ba5","target":"graph","created_at":"2026-05-18T00:45:09Z","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":"We use a direct observational approach to investigate the possibility of testing the Copernican principle with data from upcoming radio surveys. In particular we illustrate the importance of measuring derivatives transverse to the past light-cone when prior knowledge of the value of the cosmological constant is not available.","authors_text":"Hertzog L. Bester, Julien Larena, Nigel T. Bishop","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-05-02T14:26:56Z","title":"Testing the Copernican principle with future radio-astronomy observations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.00994","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":"sha256:5be1c372d355f9529c6376badd0259e4c5035f49d0ac1b3246d348a8c36b6213","target":"record","created_at":"2026-05-18T00:45:09Z","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":"d4842787d845c769e392b8f10e8c85e31a28fb5321c0cadcd0e06a78f8f7ab8f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-05-02T14:26:56Z","title_canon_sha256":"1c7eee32cb5faedafbb287df54fcbc7b7a6bbec44668189b9b6eca38a544b0a7"},"schema_version":"1.0","source":{"id":"1705.00994","kind":"arxiv","version":1}},"canonical_sha256":"2abb286576ada52c3175f42e9169128eaf1921fd372bc6e43f79f945a38953ab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2abb286576ada52c3175f42e9169128eaf1921fd372bc6e43f79f945a38953ab","first_computed_at":"2026-05-18T00:45:09.147981Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:45:09.147981Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NDoj5D20liOz6+Xn+jEr86QqwYiOS83YUpyM7kapyyhMuYsgqheTB0P5Y808ItgELn8Tzu9mKJ879w3RfkroBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:45:09.148577Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.00994","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5be1c372d355f9529c6376badd0259e4c5035f49d0ac1b3246d348a8c36b6213","sha256:8b9f9078027734a0aff85f7cd8e275b01b0028436fc3f4b56d7e711a70132ba5"],"state_sha256":"07ab3db5e8e63c689e5a40ef7f5b81bd42d7b94548c4e0cd8160838b5d98bd41"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2LxOqzDFFSeM6Et40vKOVHh3drbrrZ2GgmDsPKCJcbGxJJW467fINtp3l8lNYmlPBGqVVq2cHhoWxShcLpz7CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T18:28:05.824302Z","bundle_sha256":"caa7179241bf0fb994f71c3d4447fd07df753bfd4a8bbd176bca3b11e4e26ede"}}