{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:COCZGGLYQBESZ6CRHBBZ4ZBVHV","short_pith_number":"pith:COCZGGLY","canonical_record":{"source":{"id":"astro-ph/0512586","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-12-23T03:40:54Z","cross_cats_sorted":[],"title_canon_sha256":"58f10cae61e0296c8b4629d26df9c8375958a64a85ed7a3fbdb26593e0f95fc5","abstract_canon_sha256":"502f925e05ff51d4b49072e5795410c1fca2eecf3149a2473e49f4c8840d4122"},"schema_version":"1.0"},"canonical_sha256":"138593197880492cf85138439e64353d51d392ce6070573a0c87e90e59abad4f","source":{"kind":"arxiv","id":"astro-ph/0512586","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0512586","created_at":"2026-07-04T15:19:38Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0512586v1","created_at":"2026-07-04T15:19:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0512586","created_at":"2026-07-04T15:19:38Z"},{"alias_kind":"pith_short_12","alias_value":"COCZGGLYQBES","created_at":"2026-07-04T15:19:38Z"},{"alias_kind":"pith_short_16","alias_value":"COCZGGLYQBESZ6CR","created_at":"2026-07-04T15:19:38Z"},{"alias_kind":"pith_short_8","alias_value":"COCZGGLY","created_at":"2026-07-04T15:19:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:COCZGGLYQBESZ6CRHBBZ4ZBVHV","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0512586","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-12-23T03:40:54Z","cross_cats_sorted":[],"title_canon_sha256":"58f10cae61e0296c8b4629d26df9c8375958a64a85ed7a3fbdb26593e0f95fc5","abstract_canon_sha256":"502f925e05ff51d4b49072e5795410c1fca2eecf3149a2473e49f4c8840d4122"},"schema_version":"1.0"},"canonical_sha256":"138593197880492cf85138439e64353d51d392ce6070573a0c87e90e59abad4f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:19:38.379127Z","signature_b64":"a/j8m1/02whIbbqitA06JzbAf89oGSQ+lEBqcCEUrN87iqpK+xvnLwAN4eNfRP0ryR7F6+9n5m6xfimcPT0UAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"138593197880492cf85138439e64353d51d392ce6070573a0c87e90e59abad4f","last_reissued_at":"2026-07-04T15:19:38.378688Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:19:38.378688Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0512586","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":"2026-07-04T15:19:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"smleGbLGueB6pXWArl9a9znb6xnMjeCQQuWRMNbGVaK6//6/HLavXPQrx7jnLu/DSSKzEBuRCp7hZKna1hQBAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T06:02:33.306412Z"},"content_sha256":"35105cf0fca3ee9134dcf7ec22c9171216745024b6de37c072cba42987b26d8b","schema_version":"1.0","event_id":"sha256:35105cf0fca3ee9134dcf7ec22c9171216745024b6de37c072cba42987b26d8b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:COCZGGLYQBESZ6CRHBBZ4ZBVHV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"What Do We Really Know About Cosmic Acceleration?","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"2), 2) ((1) University of Chicago, (2) Kavli Institute for Cosmological Physics), Charles Shapiro (1, Michael S. Turner (1","submitted_at":"2005-12-23T03:40:54Z","abstract_excerpt":"Essentially all of our knowledge of the acceleration history of the Universe - including the acceleration itself - is predicated upon the validity of general relativity. Without recourse to this assumption, we use SNeIa to analyze the expansion history and find (i) very strong (5 sigma) evidence for a period of acceleration, (ii) strong evidence that the acceleration has not been constant, (iii) evidence for an earlier period of deceleration and (iv) only weak evidence that the Universe has not been decelerating since z~0.3."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0512586","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/0512586/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":"2026-07-04T15:19:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BCbupUDFnyGvMmmILGI7Wy5Dl5w1cG9OJV3R1fRp90IncDwUTTyVYJOtw6izf6KFIQwUadMAtaOBUyfewT2nAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T06:02:33.306917Z"},"content_sha256":"73da2599f7f5d1f4a52534fe7ad9622a6d3addf823e47b8f04d8b0156ce4fe9a","schema_version":"1.0","event_id":"sha256:73da2599f7f5d1f4a52534fe7ad9622a6d3addf823e47b8f04d8b0156ce4fe9a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/COCZGGLYQBESZ6CRHBBZ4ZBVHV/bundle.json","state_url":"https://pith.science/pith/COCZGGLYQBESZ6CRHBBZ4ZBVHV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/COCZGGLYQBESZ6CRHBBZ4ZBVHV/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":"2026-08-15T06:02:33Z","links":{"resolver":"https://pith.science/pith/COCZGGLYQBESZ6CRHBBZ4ZBVHV","bundle":"https://pith.science/pith/COCZGGLYQBESZ6CRHBBZ4ZBVHV/bundle.json","state":"https://pith.science/pith/COCZGGLYQBESZ6CRHBBZ4ZBVHV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/COCZGGLYQBESZ6CRHBBZ4ZBVHV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:COCZGGLYQBESZ6CRHBBZ4ZBVHV","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":"502f925e05ff51d4b49072e5795410c1fca2eecf3149a2473e49f4c8840d4122","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-12-23T03:40:54Z","title_canon_sha256":"58f10cae61e0296c8b4629d26df9c8375958a64a85ed7a3fbdb26593e0f95fc5"},"schema_version":"1.0","source":{"id":"astro-ph/0512586","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0512586","created_at":"2026-07-04T15:19:38Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0512586v1","created_at":"2026-07-04T15:19:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0512586","created_at":"2026-07-04T15:19:38Z"},{"alias_kind":"pith_short_12","alias_value":"COCZGGLYQBES","created_at":"2026-07-04T15:19:38Z"},{"alias_kind":"pith_short_16","alias_value":"COCZGGLYQBESZ6CR","created_at":"2026-07-04T15:19:38Z"},{"alias_kind":"pith_short_8","alias_value":"COCZGGLY","created_at":"2026-07-04T15:19:38Z"}],"graph_snapshots":[{"event_id":"sha256:73da2599f7f5d1f4a52534fe7ad9622a6d3addf823e47b8f04d8b0156ce4fe9a","target":"graph","created_at":"2026-07-04T15:19:38Z","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/0512586/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Essentially all of our knowledge of the acceleration history of the Universe - including the acceleration itself - is predicated upon the validity of general relativity. Without recourse to this assumption, we use SNeIa to analyze the expansion history and find (i) very strong (5 sigma) evidence for a period of acceleration, (ii) strong evidence that the acceleration has not been constant, (iii) evidence for an earlier period of deceleration and (iv) only weak evidence that the Universe has not been decelerating since z~0.3.","authors_text":"2), 2) ((1) University of Chicago, (2) Kavli Institute for Cosmological Physics), Charles Shapiro (1, Michael S. Turner (1","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2005-12-23T03:40:54Z","title":"What Do We Really Know About Cosmic Acceleration?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0512586","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":"sha256:35105cf0fca3ee9134dcf7ec22c9171216745024b6de37c072cba42987b26d8b","target":"record","created_at":"2026-07-04T15:19:38Z","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":"502f925e05ff51d4b49072e5795410c1fca2eecf3149a2473e49f4c8840d4122","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-12-23T03:40:54Z","title_canon_sha256":"58f10cae61e0296c8b4629d26df9c8375958a64a85ed7a3fbdb26593e0f95fc5"},"schema_version":"1.0","source":{"id":"astro-ph/0512586","kind":"arxiv","version":1}},"canonical_sha256":"138593197880492cf85138439e64353d51d392ce6070573a0c87e90e59abad4f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"138593197880492cf85138439e64353d51d392ce6070573a0c87e90e59abad4f","first_computed_at":"2026-07-04T15:19:38.378688Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:19:38.378688Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"a/j8m1/02whIbbqitA06JzbAf89oGSQ+lEBqcCEUrN87iqpK+xvnLwAN4eNfRP0ryR7F6+9n5m6xfimcPT0UAA==","signature_status":"signed_v1","signed_at":"2026-07-04T15:19:38.379127Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0512586","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:35105cf0fca3ee9134dcf7ec22c9171216745024b6de37c072cba42987b26d8b","sha256:73da2599f7f5d1f4a52534fe7ad9622a6d3addf823e47b8f04d8b0156ce4fe9a"],"state_sha256":"00349ff75fd68b9a0dffff3b0e11d8a19686361f9d2094917a73a199684998b3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R9ktlpLRqPGylbPePuUezuJoiFvcWDdVMYL4VUmBn0BVcy4zhoFfl6lQLuX/Z8ZSzxZGa0EmX4sAAyn0YY+iCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T06:02:33.312447Z","bundle_sha256":"c33042bb81804a9ed79fb405930414bd6b9bb0cfcb7a34b226f5fbe4c92e16a4"}}