{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:XQRY6RN3AT53YH4WXIYOUI3Q7U","short_pith_number":"pith:XQRY6RN3","canonical_record":{"source":{"id":"1212.5625","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-12-21T22:52:25Z","cross_cats_sorted":[],"title_canon_sha256":"137f542f7e67fbf25659b0917f3a9e76310e25db525cbd75f54d7275ac05bf31","abstract_canon_sha256":"5ae13f435b182a2c6d6698056c7f63fcb457e0f3380d856144cb662fef9be539"},"schema_version":"1.0"},"canonical_sha256":"bc238f45bb04fbbc1f96ba30ea2370fd0383b39efd034616dc61a0e912ba4949","source":{"kind":"arxiv","id":"1212.5625","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.5625","created_at":"2026-05-18T01:52:28Z"},{"alias_kind":"arxiv_version","alias_value":"1212.5625v1","created_at":"2026-05-18T01:52:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.5625","created_at":"2026-05-18T01:52:28Z"},{"alias_kind":"pith_short_12","alias_value":"XQRY6RN3AT53","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_16","alias_value":"XQRY6RN3AT53YH4W","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_8","alias_value":"XQRY6RN3","created_at":"2026-05-18T12:27:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:XQRY6RN3AT53YH4WXIYOUI3Q7U","target":"record","payload":{"canonical_record":{"source":{"id":"1212.5625","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-12-21T22:52:25Z","cross_cats_sorted":[],"title_canon_sha256":"137f542f7e67fbf25659b0917f3a9e76310e25db525cbd75f54d7275ac05bf31","abstract_canon_sha256":"5ae13f435b182a2c6d6698056c7f63fcb457e0f3380d856144cb662fef9be539"},"schema_version":"1.0"},"canonical_sha256":"bc238f45bb04fbbc1f96ba30ea2370fd0383b39efd034616dc61a0e912ba4949","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:52:28.991956Z","signature_b64":"Cby26lEvUYfH2OgiWPmd58WcrcllLLvgeSCMwUu9Pd8ZDyf39kX1C/sbR2TTyxy9NugsPioGC2HkgRyFR5+5AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bc238f45bb04fbbc1f96ba30ea2370fd0383b39efd034616dc61a0e912ba4949","last_reissued_at":"2026-05-18T01:52:28.991399Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:52:28.991399Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1212.5625","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":"2026-05-18T01:52:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R+7DYbk8/+N1lcoZlHAlJ4yw1RuOWPncDiMVfAwbuzeMg+Zi7t+NKcAwWj5eQu+LfcejseQgYA9HCB7l9sXGCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T19:24:40.438394Z"},"content_sha256":"3e4cc54dc1889bd0ccd5a977de7bd5fd76637b1c13f83f36c70ad7f13666350f","schema_version":"1.0","event_id":"sha256:3e4cc54dc1889bd0ccd5a977de7bd5fd76637b1c13f83f36c70ad7f13666350f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:XQRY6RN3AT53YH4WXIYOUI3Q7U","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On Measuring the CMB Temperature at Redshift 0.89","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Chris L. Carilli, Karl M. Menten, Mark J. Reid, Mayumi Sato","submitted_at":"2012-12-21T22:52:25Z","abstract_excerpt":"We report on a measurement of the temperature of the cosmic microwave background radiation field, T_CMB, at z = 0.88582 by imaging HC3N (3-2) and (5-4) absorption in the foreground galaxy of the gravitationally lens magnified radio source PKS 1830-211 using the Very Long Baseline Array and the phased Very Large Array. Low-resolution imaging of the data yields a value of Trot = 5.6+2.5-0.9 K, for the rotational temperature, Trot, which is consistent with the temperature of the cosmic microwave background at the absorber's redshift of 2.73(1+z) K. However, our high-resolution imaging reveals tha"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.5625","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":"2026-05-18T01:52:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Rojxa/Jzw+S9zErx87ZNDN3THMwOOPxFBsTMXWHWf9QX263ApTSIDi+Y23YqcZJII2oOCFYcQAbzSsCFKejlAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T19:24:40.439079Z"},"content_sha256":"43c790b90f3fb1c84aaab7b0b394b12b85b4531d9907059bc4d59efe60b8857f","schema_version":"1.0","event_id":"sha256:43c790b90f3fb1c84aaab7b0b394b12b85b4531d9907059bc4d59efe60b8857f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XQRY6RN3AT53YH4WXIYOUI3Q7U/bundle.json","state_url":"https://pith.science/pith/XQRY6RN3AT53YH4WXIYOUI3Q7U/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XQRY6RN3AT53YH4WXIYOUI3Q7U/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":"2026-05-25T19:24:40Z","links":{"resolver":"https://pith.science/pith/XQRY6RN3AT53YH4WXIYOUI3Q7U","bundle":"https://pith.science/pith/XQRY6RN3AT53YH4WXIYOUI3Q7U/bundle.json","state":"https://pith.science/pith/XQRY6RN3AT53YH4WXIYOUI3Q7U/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XQRY6RN3AT53YH4WXIYOUI3Q7U/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:XQRY6RN3AT53YH4WXIYOUI3Q7U","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":"5ae13f435b182a2c6d6698056c7f63fcb457e0f3380d856144cb662fef9be539","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-12-21T22:52:25Z","title_canon_sha256":"137f542f7e67fbf25659b0917f3a9e76310e25db525cbd75f54d7275ac05bf31"},"schema_version":"1.0","source":{"id":"1212.5625","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.5625","created_at":"2026-05-18T01:52:28Z"},{"alias_kind":"arxiv_version","alias_value":"1212.5625v1","created_at":"2026-05-18T01:52:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.5625","created_at":"2026-05-18T01:52:28Z"},{"alias_kind":"pith_short_12","alias_value":"XQRY6RN3AT53","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_16","alias_value":"XQRY6RN3AT53YH4W","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_8","alias_value":"XQRY6RN3","created_at":"2026-05-18T12:27:27Z"}],"graph_snapshots":[{"event_id":"sha256:43c790b90f3fb1c84aaab7b0b394b12b85b4531d9907059bc4d59efe60b8857f","target":"graph","created_at":"2026-05-18T01:52:28Z","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 report on a measurement of the temperature of the cosmic microwave background radiation field, T_CMB, at z = 0.88582 by imaging HC3N (3-2) and (5-4) absorption in the foreground galaxy of the gravitationally lens magnified radio source PKS 1830-211 using the Very Long Baseline Array and the phased Very Large Array. Low-resolution imaging of the data yields a value of Trot = 5.6+2.5-0.9 K, for the rotational temperature, Trot, which is consistent with the temperature of the cosmic microwave background at the absorber's redshift of 2.73(1+z) K. However, our high-resolution imaging reveals tha","authors_text":"Chris L. Carilli, Karl M. Menten, Mark J. Reid, Mayumi Sato","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-12-21T22:52:25Z","title":"On Measuring the CMB Temperature at Redshift 0.89"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.5625","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":"sha256:3e4cc54dc1889bd0ccd5a977de7bd5fd76637b1c13f83f36c70ad7f13666350f","target":"record","created_at":"2026-05-18T01:52:28Z","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":"5ae13f435b182a2c6d6698056c7f63fcb457e0f3380d856144cb662fef9be539","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-12-21T22:52:25Z","title_canon_sha256":"137f542f7e67fbf25659b0917f3a9e76310e25db525cbd75f54d7275ac05bf31"},"schema_version":"1.0","source":{"id":"1212.5625","kind":"arxiv","version":1}},"canonical_sha256":"bc238f45bb04fbbc1f96ba30ea2370fd0383b39efd034616dc61a0e912ba4949","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bc238f45bb04fbbc1f96ba30ea2370fd0383b39efd034616dc61a0e912ba4949","first_computed_at":"2026-05-18T01:52:28.991399Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:52:28.991399Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Cby26lEvUYfH2OgiWPmd58WcrcllLLvgeSCMwUu9Pd8ZDyf39kX1C/sbR2TTyxy9NugsPioGC2HkgRyFR5+5AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:52:28.991956Z","signed_message":"canonical_sha256_bytes"},"source_id":"1212.5625","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3e4cc54dc1889bd0ccd5a977de7bd5fd76637b1c13f83f36c70ad7f13666350f","sha256:43c790b90f3fb1c84aaab7b0b394b12b85b4531d9907059bc4d59efe60b8857f"],"state_sha256":"2d36e041d232aba0944d3dec71ebd7812b54a5a557eea30e85bc917c6b44e132"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3JpdUOW30PpW7FXeOz/pCkcRMbFppaeXwP+hN22N74YXHgTurHiHj+oRyyJELiZCLvO+I//AatQe6JaWUVxLDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T19:24:40.442921Z","bundle_sha256":"651f8c3e32ab473b36bdf02269ebfac1afefb2de6575af7ad44acb1e372c0686"}}