{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:VRSZMUKQPZPIZNVFHR6YLIFSL7","short_pith_number":"pith:VRSZMUKQ","canonical_record":{"source":{"id":"astro-ph/0002044","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-02-02T07:51:59Z","cross_cats_sorted":[],"title_canon_sha256":"50ad6dcdab5bac473f03bd7eca6419a40e24b6794e34f74cd14cb2455bf99670","abstract_canon_sha256":"1b9efd106bed7788df9828c34a0ba99e8f247c4104b2c18b9b8a92fa9b844ffe"},"schema_version":"1.0"},"canonical_sha256":"ac659651507e5e8cb6a53c7d85a0b25fdb8e6a1695ad1ce4cd5ec7ec79b32e03","source":{"kind":"arxiv","id":"astro-ph/0002044","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0002044","created_at":"2026-07-04T16:16:00Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0002044v1","created_at":"2026-07-04T16:16:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0002044","created_at":"2026-07-04T16:16:00Z"},{"alias_kind":"pith_short_12","alias_value":"VRSZMUKQPZPI","created_at":"2026-07-04T16:16:00Z"},{"alias_kind":"pith_short_16","alias_value":"VRSZMUKQPZPIZNVF","created_at":"2026-07-04T16:16:00Z"},{"alias_kind":"pith_short_8","alias_value":"VRSZMUKQ","created_at":"2026-07-04T16:16:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:VRSZMUKQPZPIZNVFHR6YLIFSL7","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0002044","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-02-02T07:51:59Z","cross_cats_sorted":[],"title_canon_sha256":"50ad6dcdab5bac473f03bd7eca6419a40e24b6794e34f74cd14cb2455bf99670","abstract_canon_sha256":"1b9efd106bed7788df9828c34a0ba99e8f247c4104b2c18b9b8a92fa9b844ffe"},"schema_version":"1.0"},"canonical_sha256":"ac659651507e5e8cb6a53c7d85a0b25fdb8e6a1695ad1ce4cd5ec7ec79b32e03","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:16:00.514211Z","signature_b64":"RO/qsu5ilYVasocbpMkZe4Pra35RDunoZN/LiHcqpb1X+YHKkAtK6EukItkXYKU180kchVy92ggISqz1fJveBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ac659651507e5e8cb6a53c7d85a0b25fdb8e6a1695ad1ce4cd5ec7ec79b32e03","last_reissued_at":"2026-07-04T16:16:00.513808Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:16:00.513808Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0002044","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":"2026-07-04T16:16:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iEkmxUhoCnO+kOvdjDlKmk/0f6T7FqWrBFq/WBtSNZwRK8Vs6sWMFetK8aC5ShZCQcGFShwhcBgiaFlN88Q2BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T19:40:09.991212Z"},"content_sha256":"aae17405f577dd4718c9bb70e4cba33c806213bff013805d1543d52108c8329c","schema_version":"1.0","event_id":"sha256:aae17405f577dd4718c9bb70e4cba33c806213bff013805d1543d52108c8329c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:VRSZMUKQPZPIZNVFHR6YLIFSL7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Cosmic Microwave Background Radiation","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Eric Gawiser, Joseph Silk","submitted_at":"2000-02-02T07:51:59Z","abstract_excerpt":"We summarize the theoretical and observational status of the study of the Cosmic Microwave Background radiation. Its thermodynamic spectrum is a robust prediction of the Hot Big Bang cosmology and has been confirmed observationally. There are now 76 observations of Cosmic Microwave Background anisotropy, which we present in a table with references. We discuss the theoretical origins of these anisotropies and explain the standard jargon associated with their observation."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0002044","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/astro-ph/0002044/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":"2026-07-04T16:16:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RvkpwnDQadCW5Z7U30NIokAbsIKBtvFzUBNF8YkliHI0ZA/rCLXpkju9CjgvMoHL9RVMTutzt/maKzeRHUakCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T19:40:09.992088Z"},"content_sha256":"740bdf9653eff495df505a38294ad87d118a9afc0dcd2e39fca200f4f88632c9","schema_version":"1.0","event_id":"sha256:740bdf9653eff495df505a38294ad87d118a9afc0dcd2e39fca200f4f88632c9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VRSZMUKQPZPIZNVFHR6YLIFSL7/bundle.json","state_url":"https://pith.science/pith/VRSZMUKQPZPIZNVFHR6YLIFSL7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VRSZMUKQPZPIZNVFHR6YLIFSL7/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":"2026-08-03T19:40:09Z","links":{"resolver":"https://pith.science/pith/VRSZMUKQPZPIZNVFHR6YLIFSL7","bundle":"https://pith.science/pith/VRSZMUKQPZPIZNVFHR6YLIFSL7/bundle.json","state":"https://pith.science/pith/VRSZMUKQPZPIZNVFHR6YLIFSL7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VRSZMUKQPZPIZNVFHR6YLIFSL7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:VRSZMUKQPZPIZNVFHR6YLIFSL7","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":"1b9efd106bed7788df9828c34a0ba99e8f247c4104b2c18b9b8a92fa9b844ffe","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-02-02T07:51:59Z","title_canon_sha256":"50ad6dcdab5bac473f03bd7eca6419a40e24b6794e34f74cd14cb2455bf99670"},"schema_version":"1.0","source":{"id":"astro-ph/0002044","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0002044","created_at":"2026-07-04T16:16:00Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0002044v1","created_at":"2026-07-04T16:16:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0002044","created_at":"2026-07-04T16:16:00Z"},{"alias_kind":"pith_short_12","alias_value":"VRSZMUKQPZPI","created_at":"2026-07-04T16:16:00Z"},{"alias_kind":"pith_short_16","alias_value":"VRSZMUKQPZPIZNVF","created_at":"2026-07-04T16:16:00Z"},{"alias_kind":"pith_short_8","alias_value":"VRSZMUKQ","created_at":"2026-07-04T16:16:00Z"}],"graph_snapshots":[{"event_id":"sha256:740bdf9653eff495df505a38294ad87d118a9afc0dcd2e39fca200f4f88632c9","target":"graph","created_at":"2026-07-04T16:16:00Z","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/astro-ph/0002044/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We summarize the theoretical and observational status of the study of the Cosmic Microwave Background radiation. Its thermodynamic spectrum is a robust prediction of the Hot Big Bang cosmology and has been confirmed observationally. There are now 76 observations of Cosmic Microwave Background anisotropy, which we present in a table with references. We discuss the theoretical origins of these anisotropies and explain the standard jargon associated with their observation.","authors_text":"Eric Gawiser, Joseph Silk","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2000-02-02T07:51:59Z","title":"The Cosmic Microwave Background Radiation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0002044","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:aae17405f577dd4718c9bb70e4cba33c806213bff013805d1543d52108c8329c","target":"record","created_at":"2026-07-04T16:16:00Z","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":"1b9efd106bed7788df9828c34a0ba99e8f247c4104b2c18b9b8a92fa9b844ffe","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-02-02T07:51:59Z","title_canon_sha256":"50ad6dcdab5bac473f03bd7eca6419a40e24b6794e34f74cd14cb2455bf99670"},"schema_version":"1.0","source":{"id":"astro-ph/0002044","kind":"arxiv","version":1}},"canonical_sha256":"ac659651507e5e8cb6a53c7d85a0b25fdb8e6a1695ad1ce4cd5ec7ec79b32e03","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ac659651507e5e8cb6a53c7d85a0b25fdb8e6a1695ad1ce4cd5ec7ec79b32e03","first_computed_at":"2026-07-04T16:16:00.513808Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:16:00.513808Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RO/qsu5ilYVasocbpMkZe4Pra35RDunoZN/LiHcqpb1X+YHKkAtK6EukItkXYKU180kchVy92ggISqz1fJveBA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:16:00.514211Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0002044","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aae17405f577dd4718c9bb70e4cba33c806213bff013805d1543d52108c8329c","sha256:740bdf9653eff495df505a38294ad87d118a9afc0dcd2e39fca200f4f88632c9"],"state_sha256":"cfdff3aaa6c1bfcad0e33b8756a21f2cd636d23d9bc3ad57e16edeb1f8e65120"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NqQYUnRQ8IJMiqzoeE/V9azgy7wbcMO+ckHm7tTFCi7RyVVU+6BjmYZ+EK4uca77g6bG3SHthctrC48MFV8KCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T19:40:09.999268Z","bundle_sha256":"4776f7b89d91d2db73e0e15572db05c7a9515ec0081cc96a77a2b5f8fe17463d"}}