{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:Y3GUOF4HNAWQCF2OTPTK4UYD5T","short_pith_number":"pith:Y3GUOF4H","canonical_record":{"source":{"id":"astro-ph/0105413","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-05-23T17:58:10Z","cross_cats_sorted":[],"title_canon_sha256":"2a6c469a727144210e7f44165b74846c2b039f0eec9055b3748a1463b048a8ac","abstract_canon_sha256":"b5ffb8d46cf5a80ec2b4073c25dd4aa005f134a487b624fc2be9b3ed3dd11069"},"schema_version":"1.0"},"canonical_sha256":"c6cd471787682d01174e9be6ae5303ecf957e619a98ddfd73e4d45804c52e89f","source":{"kind":"arxiv","id":"astro-ph/0105413","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0105413","created_at":"2026-05-18T01:07:45Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0105413v2","created_at":"2026-05-18T01:07:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0105413","created_at":"2026-05-18T01:07:45Z"},{"alias_kind":"pith_short_12","alias_value":"Y3GUOF4HNAWQ","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"Y3GUOF4HNAWQCF2O","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"Y3GUOF4H","created_at":"2026-05-18T12:25:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:Y3GUOF4HNAWQCF2OTPTK4UYD5T","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0105413","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-05-23T17:58:10Z","cross_cats_sorted":[],"title_canon_sha256":"2a6c469a727144210e7f44165b74846c2b039f0eec9055b3748a1463b048a8ac","abstract_canon_sha256":"b5ffb8d46cf5a80ec2b4073c25dd4aa005f134a487b624fc2be9b3ed3dd11069"},"schema_version":"1.0"},"canonical_sha256":"c6cd471787682d01174e9be6ae5303ecf957e619a98ddfd73e4d45804c52e89f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:45.826520Z","signature_b64":"sjU8yC5a7nw7jj/lCp7XDgJ5RbRIRK7+mXzc5iQwx7xvvnqap+FmCtb5cUfP+LYwFbvVy8LCeptkejj1UOmLAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c6cd471787682d01174e9be6ae5303ecf957e619a98ddfd73e4d45804c52e89f","last_reissued_at":"2026-05-18T01:07:45.826108Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:45.826108Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0105413","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":"2026-05-18T01:07:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/prau+6i7yhBAB2EmzauyE8QDwkxH7oVYFgmIJ1t4KgShs2qX3+jCj5XLKMWIl5VCxThPumIirRVHd0qLWCXBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T17:35:26.331407Z"},"content_sha256":"b40d5c2dfa36e7f7a5b211d0777471c0e16928b595754ea4d39ae861926b908a","schema_version":"1.0","event_id":"sha256:b40d5c2dfa36e7f7a5b211d0777471c0e16928b595754ea4d39ae861926b908a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:Y3GUOF4HNAWQCF2OTPTK4UYD5T","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Type Ia Supernovae, the Hubble Constant, the Cosmological Constant, and the Age of the Universe","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"John L. Tonry, the High-Z Supernova Search Team","submitted_at":"2001-05-23T17:58:10Z","abstract_excerpt":"The age of the Universe depends on both the present-day Hubble Constant and on the history of cosmic expansion. For decelerating cosmologies such as Omega_m= 1, the dimensionless product H_0,t_0<1 and modestly high values of the Hubble constant H_0 > 70 would be inconsistent with a cosmic age t_0 larger than 12 Gyr. But if Omega_Lambda > 0, then H_0,t_0 can take on a range of values. Evidence from the Hubble diagram for high redshift Type Ia supernovae favors Omega_Lambda~0.7 and H_0,t_0 ~ 1. Then, if H_0 lies in the range 65--73, the age of the Universe, t_0, is 14+/-1.6 Gyr."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0105413","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":"2026-05-18T01:07:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gLU7r9swERv/YeVPclkf6ADXTEBlLn/batuEElMm02ptBWCvGqKq6/H7U4uF3IyqJ/+MrzIrXEl2OrUZmo5wCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T17:35:26.331908Z"},"content_sha256":"9ad52151a7d9fe50d7591ec7dddfda67bbe2d39103fa53ca257defcf2fa79d1e","schema_version":"1.0","event_id":"sha256:9ad52151a7d9fe50d7591ec7dddfda67bbe2d39103fa53ca257defcf2fa79d1e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Y3GUOF4HNAWQCF2OTPTK4UYD5T/bundle.json","state_url":"https://pith.science/pith/Y3GUOF4HNAWQCF2OTPTK4UYD5T/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Y3GUOF4HNAWQCF2OTPTK4UYD5T/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":"2026-05-27T17:35:26Z","links":{"resolver":"https://pith.science/pith/Y3GUOF4HNAWQCF2OTPTK4UYD5T","bundle":"https://pith.science/pith/Y3GUOF4HNAWQCF2OTPTK4UYD5T/bundle.json","state":"https://pith.science/pith/Y3GUOF4HNAWQCF2OTPTK4UYD5T/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Y3GUOF4HNAWQCF2OTPTK4UYD5T/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:Y3GUOF4HNAWQCF2OTPTK4UYD5T","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":"b5ffb8d46cf5a80ec2b4073c25dd4aa005f134a487b624fc2be9b3ed3dd11069","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-05-23T17:58:10Z","title_canon_sha256":"2a6c469a727144210e7f44165b74846c2b039f0eec9055b3748a1463b048a8ac"},"schema_version":"1.0","source":{"id":"astro-ph/0105413","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0105413","created_at":"2026-05-18T01:07:45Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0105413v2","created_at":"2026-05-18T01:07:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0105413","created_at":"2026-05-18T01:07:45Z"},{"alias_kind":"pith_short_12","alias_value":"Y3GUOF4HNAWQ","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"Y3GUOF4HNAWQCF2O","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"Y3GUOF4H","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:9ad52151a7d9fe50d7591ec7dddfda67bbe2d39103fa53ca257defcf2fa79d1e","target":"graph","created_at":"2026-05-18T01:07:45Z","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":"The age of the Universe depends on both the present-day Hubble Constant and on the history of cosmic expansion. For decelerating cosmologies such as Omega_m= 1, the dimensionless product H_0,t_0<1 and modestly high values of the Hubble constant H_0 > 70 would be inconsistent with a cosmic age t_0 larger than 12 Gyr. But if Omega_Lambda > 0, then H_0,t_0 can take on a range of values. Evidence from the Hubble diagram for high redshift Type Ia supernovae favors Omega_Lambda~0.7 and H_0,t_0 ~ 1. Then, if H_0 lies in the range 65--73, the age of the Universe, t_0, is 14+/-1.6 Gyr.","authors_text":"John L. Tonry, the High-Z Supernova Search Team","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2001-05-23T17:58:10Z","title":"Type Ia Supernovae, the Hubble Constant, the Cosmological Constant, and the Age of the Universe"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0105413","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:b40d5c2dfa36e7f7a5b211d0777471c0e16928b595754ea4d39ae861926b908a","target":"record","created_at":"2026-05-18T01:07:45Z","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":"b5ffb8d46cf5a80ec2b4073c25dd4aa005f134a487b624fc2be9b3ed3dd11069","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-05-23T17:58:10Z","title_canon_sha256":"2a6c469a727144210e7f44165b74846c2b039f0eec9055b3748a1463b048a8ac"},"schema_version":"1.0","source":{"id":"astro-ph/0105413","kind":"arxiv","version":2}},"canonical_sha256":"c6cd471787682d01174e9be6ae5303ecf957e619a98ddfd73e4d45804c52e89f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c6cd471787682d01174e9be6ae5303ecf957e619a98ddfd73e4d45804c52e89f","first_computed_at":"2026-05-18T01:07:45.826108Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:45.826108Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sjU8yC5a7nw7jj/lCp7XDgJ5RbRIRK7+mXzc5iQwx7xvvnqap+FmCtb5cUfP+LYwFbvVy8LCeptkejj1UOmLAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:45.826520Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0105413","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b40d5c2dfa36e7f7a5b211d0777471c0e16928b595754ea4d39ae861926b908a","sha256:9ad52151a7d9fe50d7591ec7dddfda67bbe2d39103fa53ca257defcf2fa79d1e"],"state_sha256":"21ddb0a67b6524a0195fd6743afe61fe7bfe4d72255073925019eb1d57e72c5d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lKBp1T7pCZv3bw2Af+g+YCdKi6dbIRYDFCI78iKQD84J7xEwR6rkNA7MzMK6UiK31K5UW1Edrc3yVk888sKECQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T17:35:26.335772Z","bundle_sha256":"8ab7c7886c2765b698db6e8908351267a3587bf0f9b5c49930a6ef2045bb97f1"}}