{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1995:QDATE75XBQY33DPV33C66C5CYC","short_pith_number":"pith:QDATE75X","canonical_record":{"source":{"id":"astro-ph/9503020","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1995-03-04T19:41:54Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"297e8ba41a288661dc91267f3fbc38842df37963ca97d05c05b04c9ce922fb33","abstract_canon_sha256":"d0b461016e175d1078692a742fcf70319258b728807d4e90aba5e33de4c38942"},"schema_version":"1.0"},"canonical_sha256":"80c1327fb70c31bd8df5dec5ef0ba2c0991974539c40c141ffe8d3ba9f057b0c","source":{"kind":"arxiv","id":"astro-ph/9503020","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9503020","created_at":"2026-05-18T01:07:41Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9503020v2","created_at":"2026-05-18T01:07:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9503020","created_at":"2026-05-18T01:07:41Z"},{"alias_kind":"pith_short_12","alias_value":"QDATE75XBQY3","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"QDATE75XBQY33DPV","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"QDATE75X","created_at":"2026-05-18T12:25:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1995:QDATE75XBQY33DPV33C66C5CYC","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/9503020","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1995-03-04T19:41:54Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"297e8ba41a288661dc91267f3fbc38842df37963ca97d05c05b04c9ce922fb33","abstract_canon_sha256":"d0b461016e175d1078692a742fcf70319258b728807d4e90aba5e33de4c38942"},"schema_version":"1.0"},"canonical_sha256":"80c1327fb70c31bd8df5dec5ef0ba2c0991974539c40c141ffe8d3ba9f057b0c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:41.946165Z","signature_b64":"Ip/MudTcE81GQ4/4nWejiJr5ygFYkW87qoSWv7F03ib2Y/yD2nJwEHSCvlL4i3kHoMp6kVR+sRwiSpvj7SotBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"80c1327fb70c31bd8df5dec5ef0ba2c0991974539c40c141ffe8d3ba9f057b0c","last_reissued_at":"2026-05-18T01:07:41.945498Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:41.945498Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/9503020","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":"2026-05-18T01:07:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P9fNt567/ZBhu2/pSqKf6x9fhxxp6ivhDNM+YGc/JTYzKP4pyYvgCwBBbDYWCwBVeGasVNO7iUlmw/8vFDO/Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T05:38:57.277022Z"},"content_sha256":"cb8faa34f215aec4c687709fcb6b304f0636f35504221b7eb43d82706d1e1529","schema_version":"1.0","event_id":"sha256:cb8faa34f215aec4c687709fcb6b304f0636f35504221b7eb43d82706d1e1529"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1995:QDATE75XBQY33DPV33C66C5CYC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Status of Cosmological Parameters: Can $\\Omega=1$?","license":"","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph","authors_text":"Joel R. Primack","submitted_at":"1995-03-04T19:41:54Z","abstract_excerpt":"I discuss the Hubble parameter $H_0$, the age of the universe $t_0$, the density $\\Omega_0$, and the cosmological constant $\\Lambda$. To focus the discussion, I concentrate on the issue of the value of the density $\\Omega_0$ in currently popular cosmological models in which most of the dark matter is cold, especially Cold + Hot Dark Matter (CHDM) and flat low- $\\Omega$ CDM with a Cosmological Constant ($\\Lambda$CDM). The evidence would favor a small $\\Omega_0 \\approx 0.3$ if (1) the Hubble parameter actually has the high value $h \\approx 0.8$ favored by many observers, and the age of the unive"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9503020","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":"2026-05-18T01:07:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cwEChdu//8w7AMGUxZ0kLS/v7Gu337CAli16UOHo9RJy8TDjh5P613Pr/0sM9EU54rYcLVYNF2UJ2eD426CXBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T05:38:57.277385Z"},"content_sha256":"f53fc6f07cbaf9efe0fbf7b3412b5043046d9f59b2648f12bbb39425182b6f47","schema_version":"1.0","event_id":"sha256:f53fc6f07cbaf9efe0fbf7b3412b5043046d9f59b2648f12bbb39425182b6f47"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QDATE75XBQY33DPV33C66C5CYC/bundle.json","state_url":"https://pith.science/pith/QDATE75XBQY33DPV33C66C5CYC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QDATE75XBQY33DPV33C66C5CYC/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":"2026-05-28T05:38:57Z","links":{"resolver":"https://pith.science/pith/QDATE75XBQY33DPV33C66C5CYC","bundle":"https://pith.science/pith/QDATE75XBQY33DPV33C66C5CYC/bundle.json","state":"https://pith.science/pith/QDATE75XBQY33DPV33C66C5CYC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QDATE75XBQY33DPV33C66C5CYC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1995:QDATE75XBQY33DPV33C66C5CYC","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":"d0b461016e175d1078692a742fcf70319258b728807d4e90aba5e33de4c38942","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"1995-03-04T19:41:54Z","title_canon_sha256":"297e8ba41a288661dc91267f3fbc38842df37963ca97d05c05b04c9ce922fb33"},"schema_version":"1.0","source":{"id":"astro-ph/9503020","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9503020","created_at":"2026-05-18T01:07:41Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9503020v2","created_at":"2026-05-18T01:07:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9503020","created_at":"2026-05-18T01:07:41Z"},{"alias_kind":"pith_short_12","alias_value":"QDATE75XBQY3","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"QDATE75XBQY33DPV","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"QDATE75X","created_at":"2026-05-18T12:25:47Z"}],"graph_snapshots":[{"event_id":"sha256:f53fc6f07cbaf9efe0fbf7b3412b5043046d9f59b2648f12bbb39425182b6f47","target":"graph","created_at":"2026-05-18T01:07:41Z","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":"I discuss the Hubble parameter $H_0$, the age of the universe $t_0$, the density $\\Omega_0$, and the cosmological constant $\\Lambda$. To focus the discussion, I concentrate on the issue of the value of the density $\\Omega_0$ in currently popular cosmological models in which most of the dark matter is cold, especially Cold + Hot Dark Matter (CHDM) and flat low- $\\Omega$ CDM with a Cosmological Constant ($\\Lambda$CDM). The evidence would favor a small $\\Omega_0 \\approx 0.3$ if (1) the Hubble parameter actually has the high value $h \\approx 0.8$ favored by many observers, and the age of the unive","authors_text":"Joel R. Primack","cross_cats":["hep-ph"],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1995-03-04T19:41:54Z","title":"Status of Cosmological Parameters: Can $\\Omega=1$?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9503020","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:cb8faa34f215aec4c687709fcb6b304f0636f35504221b7eb43d82706d1e1529","target":"record","created_at":"2026-05-18T01:07:41Z","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":"d0b461016e175d1078692a742fcf70319258b728807d4e90aba5e33de4c38942","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"1995-03-04T19:41:54Z","title_canon_sha256":"297e8ba41a288661dc91267f3fbc38842df37963ca97d05c05b04c9ce922fb33"},"schema_version":"1.0","source":{"id":"astro-ph/9503020","kind":"arxiv","version":2}},"canonical_sha256":"80c1327fb70c31bd8df5dec5ef0ba2c0991974539c40c141ffe8d3ba9f057b0c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"80c1327fb70c31bd8df5dec5ef0ba2c0991974539c40c141ffe8d3ba9f057b0c","first_computed_at":"2026-05-18T01:07:41.945498Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:41.945498Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ip/MudTcE81GQ4/4nWejiJr5ygFYkW87qoSWv7F03ib2Y/yD2nJwEHSCvlL4i3kHoMp6kVR+sRwiSpvj7SotBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:41.946165Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9503020","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cb8faa34f215aec4c687709fcb6b304f0636f35504221b7eb43d82706d1e1529","sha256:f53fc6f07cbaf9efe0fbf7b3412b5043046d9f59b2648f12bbb39425182b6f47"],"state_sha256":"0e589455837bb27a9010d257aa2ca0a7652d33c5f1bc733f24c357918929e6c5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kCWqxULmu0yZxFpJL9LbxXf/Ij847/jbdme54mQC9RbRAbHIlg/4eSPQPhpMantPs3Dp7zUjQ6YtuAHxeAkfAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T05:38:57.279440Z","bundle_sha256":"73b1d058287a0926a8497573fac472f0b5d277755544e812facb6deeb9e00715"}}