{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:B5HVIFKQOWI6EXJDHPQX4FRBPQ","short_pith_number":"pith:B5HVIFKQ","canonical_record":{"source":{"id":"2505.24543","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-05-30T12:50:16Z","cross_cats_sorted":[],"title_canon_sha256":"07b2415d0c42319e2b13e28a1cefd26420b9e3b7d05fb353efedf1d7d6e06ceb","abstract_canon_sha256":"7abcd9aaacef30d00c503ec2e4f124a4ac9995b7ea9353529911a24bb32daaa6"},"schema_version":"1.0"},"canonical_sha256":"0f4f5415507591e25d233be17e16217c24131b6429622d0487046f7911df8685","source":{"kind":"arxiv","id":"2505.24543","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.24543","created_at":"2026-07-05T11:12:52Z"},{"alias_kind":"arxiv_version","alias_value":"2505.24543v1","created_at":"2026-07-05T11:12:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.24543","created_at":"2026-07-05T11:12:52Z"},{"alias_kind":"pith_short_12","alias_value":"B5HVIFKQOWI6","created_at":"2026-07-05T11:12:52Z"},{"alias_kind":"pith_short_16","alias_value":"B5HVIFKQOWI6EXJD","created_at":"2026-07-05T11:12:52Z"},{"alias_kind":"pith_short_8","alias_value":"B5HVIFKQ","created_at":"2026-07-05T11:12:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:B5HVIFKQOWI6EXJDHPQX4FRBPQ","target":"record","payload":{"canonical_record":{"source":{"id":"2505.24543","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-05-30T12:50:16Z","cross_cats_sorted":[],"title_canon_sha256":"07b2415d0c42319e2b13e28a1cefd26420b9e3b7d05fb353efedf1d7d6e06ceb","abstract_canon_sha256":"7abcd9aaacef30d00c503ec2e4f124a4ac9995b7ea9353529911a24bb32daaa6"},"schema_version":"1.0"},"canonical_sha256":"0f4f5415507591e25d233be17e16217c24131b6429622d0487046f7911df8685","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:12:52.004960Z","signature_b64":"r6d44Jqwv3C77XEYukps4hzdNf0RsErfFUV7cbV3gNmFpxorB/Yf06EDJNz+rW8QlcWhaf6+HdsLcBMmMbATCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0f4f5415507591e25d233be17e16217c24131b6429622d0487046f7911df8685","last_reissued_at":"2026-07-05T11:12:52.004488Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:12:52.004488Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.24543","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":"2026-07-05T11:12:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9FY/iUYEhkO/Qt0WaRnY82MaWBS3QfHB/6O61FhIsNJRHkzxwNRicFE/vMSA5FeTUjcUVB2PFwDCLTuN2IzNAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T04:03:57.152783Z"},"content_sha256":"a5f5dc3982a6201e1ffe20578e45106dbbaa2450832a50294f8e2f5525a9fb83","schema_version":"1.0","event_id":"sha256:a5f5dc3982a6201e1ffe20578e45106dbbaa2450832a50294f8e2f5525a9fb83"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:B5HVIFKQOWI6EXJDHPQX4FRBPQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Revisiting the temperature evolution law of the CMB with gaussian processes","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Alexander Bonilla Rivera, Armando Bernui, Felipe Avila, Rafael C. Nunes, R.F.L. Holanda","submitted_at":"2025-05-30T12:50:16Z","abstract_excerpt":"In this work, we perform a statistical inference of the classical background law governing the evolution of the temperature of the cosmic microwave background radiation (CMB), given by $T_{\\rm CMB}(z) = T_0(1 + z)$. To this end, we employ Gaussian Process (GP) regression techniques to reconstruct the temperature evolution based on two observational datasets: (i) CMB-Sunyaev-Zel'dovich (SZ) cluster measurements and (ii) CMB-interstellar medium (ISM) interaction data. Our analysis reveals interesting results that may suggest potential deviations from the standard temperature-redshift relation, p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.24543","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/2505.24543/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":"2026-07-05T11:12:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LhyBzTqmx4RHeE/q1uhS2RI2P4ZR1IsLTfzOf8KHt082Y43odWHbLdVhxTQiu/JHaD0i7DtbfFmvvIeIkf3kDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T04:03:57.153361Z"},"content_sha256":"a2c6e34426d2f609e3cb86e95001bd4edbae6f850e87ae6dab0ef25c23fe6d7e","schema_version":"1.0","event_id":"sha256:a2c6e34426d2f609e3cb86e95001bd4edbae6f850e87ae6dab0ef25c23fe6d7e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/B5HVIFKQOWI6EXJDHPQX4FRBPQ/bundle.json","state_url":"https://pith.science/pith/B5HVIFKQOWI6EXJDHPQX4FRBPQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/B5HVIFKQOWI6EXJDHPQX4FRBPQ/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":"2026-08-08T04:03:57Z","links":{"resolver":"https://pith.science/pith/B5HVIFKQOWI6EXJDHPQX4FRBPQ","bundle":"https://pith.science/pith/B5HVIFKQOWI6EXJDHPQX4FRBPQ/bundle.json","state":"https://pith.science/pith/B5HVIFKQOWI6EXJDHPQX4FRBPQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/B5HVIFKQOWI6EXJDHPQX4FRBPQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:B5HVIFKQOWI6EXJDHPQX4FRBPQ","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":"7abcd9aaacef30d00c503ec2e4f124a4ac9995b7ea9353529911a24bb32daaa6","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-05-30T12:50:16Z","title_canon_sha256":"07b2415d0c42319e2b13e28a1cefd26420b9e3b7d05fb353efedf1d7d6e06ceb"},"schema_version":"1.0","source":{"id":"2505.24543","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.24543","created_at":"2026-07-05T11:12:52Z"},{"alias_kind":"arxiv_version","alias_value":"2505.24543v1","created_at":"2026-07-05T11:12:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.24543","created_at":"2026-07-05T11:12:52Z"},{"alias_kind":"pith_short_12","alias_value":"B5HVIFKQOWI6","created_at":"2026-07-05T11:12:52Z"},{"alias_kind":"pith_short_16","alias_value":"B5HVIFKQOWI6EXJD","created_at":"2026-07-05T11:12:52Z"},{"alias_kind":"pith_short_8","alias_value":"B5HVIFKQ","created_at":"2026-07-05T11:12:52Z"}],"graph_snapshots":[{"event_id":"sha256:a2c6e34426d2f609e3cb86e95001bd4edbae6f850e87ae6dab0ef25c23fe6d7e","target":"graph","created_at":"2026-07-05T11:12:52Z","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/2505.24543/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this work, we perform a statistical inference of the classical background law governing the evolution of the temperature of the cosmic microwave background radiation (CMB), given by $T_{\\rm CMB}(z) = T_0(1 + z)$. To this end, we employ Gaussian Process (GP) regression techniques to reconstruct the temperature evolution based on two observational datasets: (i) CMB-Sunyaev-Zel'dovich (SZ) cluster measurements and (ii) CMB-interstellar medium (ISM) interaction data. Our analysis reveals interesting results that may suggest potential deviations from the standard temperature-redshift relation, p","authors_text":"Alexander Bonilla Rivera, Armando Bernui, Felipe Avila, Rafael C. Nunes, R.F.L. Holanda","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-05-30T12:50:16Z","title":"Revisiting the temperature evolution law of the CMB with gaussian processes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.24543","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:a5f5dc3982a6201e1ffe20578e45106dbbaa2450832a50294f8e2f5525a9fb83","target":"record","created_at":"2026-07-05T11:12:52Z","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":"7abcd9aaacef30d00c503ec2e4f124a4ac9995b7ea9353529911a24bb32daaa6","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-05-30T12:50:16Z","title_canon_sha256":"07b2415d0c42319e2b13e28a1cefd26420b9e3b7d05fb353efedf1d7d6e06ceb"},"schema_version":"1.0","source":{"id":"2505.24543","kind":"arxiv","version":1}},"canonical_sha256":"0f4f5415507591e25d233be17e16217c24131b6429622d0487046f7911df8685","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0f4f5415507591e25d233be17e16217c24131b6429622d0487046f7911df8685","first_computed_at":"2026-07-05T11:12:52.004488Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:12:52.004488Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"r6d44Jqwv3C77XEYukps4hzdNf0RsErfFUV7cbV3gNmFpxorB/Yf06EDJNz+rW8QlcWhaf6+HdsLcBMmMbATCA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:12:52.004960Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.24543","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a5f5dc3982a6201e1ffe20578e45106dbbaa2450832a50294f8e2f5525a9fb83","sha256:a2c6e34426d2f609e3cb86e95001bd4edbae6f850e87ae6dab0ef25c23fe6d7e"],"state_sha256":"f722d3fc2443511fd51658b93173784f9f8901ebc5b5189b6b15c5e955929c10"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"80CAHT18B9JN1JWOpsoLr3XyA2PJyr90WRAzWl9qnkX+YNDX1QK4C68FZpzahZWoRVQ/jKN723ApJjUhqZDXBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T04:03:57.158712Z","bundle_sha256":"e50091f5510575137d46c998cd3c38627209aacb96bee98ee362d62053208eb5"}}