{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2003:RL3VONCK3NL7F3O32SOOR4RQNF","short_pith_number":"pith:RL3VONCK","canonical_record":{"source":{"id":"astro-ph/0307285","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2003-07-15T03:09:39Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"e54364891b091ffeda2d2007d46e586a1d764a213b8beb63ea79d793bbfd9be0","abstract_canon_sha256":"c68f15b349309402546c5aa1c25795b46fce5fc6c7a86cc697694e583af50d6e"},"schema_version":"1.0"},"canonical_sha256":"8af757344adb57f2eddbd49ce8f23069406664adb6796ce4bf730a711fdf3038","source":{"kind":"arxiv","id":"astro-ph/0307285","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0307285","created_at":"2026-05-18T01:40:38Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0307285v2","created_at":"2026-05-18T01:40:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0307285","created_at":"2026-05-18T01:40:38Z"},{"alias_kind":"pith_short_12","alias_value":"RL3VONCK3NL7","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"RL3VONCK3NL7F3O3","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"RL3VONCK","created_at":"2026-05-18T12:25:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2003:RL3VONCK3NL7F3O32SOOR4RQNF","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0307285","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2003-07-15T03:09:39Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"e54364891b091ffeda2d2007d46e586a1d764a213b8beb63ea79d793bbfd9be0","abstract_canon_sha256":"c68f15b349309402546c5aa1c25795b46fce5fc6c7a86cc697694e583af50d6e"},"schema_version":"1.0"},"canonical_sha256":"8af757344adb57f2eddbd49ce8f23069406664adb6796ce4bf730a711fdf3038","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:40:38.520402Z","signature_b64":"UT1VTpioNn/GWbVY/Z8LTeqMXbS5jU+VnIwmaj+YcRe+DV6J1oUehvRND9OLP7s5v9fgMcu6sceNNcpKEfjtAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8af757344adb57f2eddbd49ce8f23069406664adb6796ce4bf730a711fdf3038","last_reissued_at":"2026-05-18T01:40:38.519835Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:40:38.519835Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0307285","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":"2026-05-18T01:40:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mvmDCQR2lXB59hBXRJJk+JX6Sqj/guyMld+UdxLQOksfHLCTait+PqFhcKFlRmq7xDpRqdUAr26ADm0txC2gAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T21:33:49.139934Z"},"content_sha256":"f0eb55f31ad205023d1f2cac1b999e22082611056f8b5aa18240409805678649","schema_version":"1.0","event_id":"sha256:f0eb55f31ad205023d1f2cac1b999e22082611056f8b5aa18240409805678649"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2003:RL3VONCK3NL7F3O32SOOR4RQNF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Can modified gravity explain accelerated cosmic expansion?","license":"","headline":"","cross_cats":["gr-qc","hep-th"],"primary_cat":"astro-ph","authors_text":"A.D. Dolgov, M. Kawasaki","submitted_at":"2003-07-15T03:09:39Z","abstract_excerpt":"We show that the recently suggested explanations of cosmic acceleration by the modification of gravity at small curvature suffer violent instabilities and strongly disagree with the known properties of gravitational interactions."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0307285","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":"2026-05-18T01:40:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Cyhhf8mbLYq6vavzJZukDicplhsTKsis/L6Ff2iHezKDzRDoZGrBso7PdTAu4De7y8n268+ax4ZRlvU6dN1ZBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T21:33:49.140362Z"},"content_sha256":"d8ffa7fa2464be3fd0e233e9f78c6c776bdcf85be5635e04a9a8ae7973846b08","schema_version":"1.0","event_id":"sha256:d8ffa7fa2464be3fd0e233e9f78c6c776bdcf85be5635e04a9a8ae7973846b08"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RL3VONCK3NL7F3O32SOOR4RQNF/bundle.json","state_url":"https://pith.science/pith/RL3VONCK3NL7F3O32SOOR4RQNF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RL3VONCK3NL7F3O32SOOR4RQNF/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":"2026-05-26T21:33:49Z","links":{"resolver":"https://pith.science/pith/RL3VONCK3NL7F3O32SOOR4RQNF","bundle":"https://pith.science/pith/RL3VONCK3NL7F3O32SOOR4RQNF/bundle.json","state":"https://pith.science/pith/RL3VONCK3NL7F3O32SOOR4RQNF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RL3VONCK3NL7F3O32SOOR4RQNF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:RL3VONCK3NL7F3O32SOOR4RQNF","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":"c68f15b349309402546c5aa1c25795b46fce5fc6c7a86cc697694e583af50d6e","cross_cats_sorted":["gr-qc","hep-th"],"license":"","primary_cat":"astro-ph","submitted_at":"2003-07-15T03:09:39Z","title_canon_sha256":"e54364891b091ffeda2d2007d46e586a1d764a213b8beb63ea79d793bbfd9be0"},"schema_version":"1.0","source":{"id":"astro-ph/0307285","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0307285","created_at":"2026-05-18T01:40:38Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0307285v2","created_at":"2026-05-18T01:40:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0307285","created_at":"2026-05-18T01:40:38Z"},{"alias_kind":"pith_short_12","alias_value":"RL3VONCK3NL7","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"RL3VONCK3NL7F3O3","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"RL3VONCK","created_at":"2026-05-18T12:25:52Z"}],"graph_snapshots":[{"event_id":"sha256:d8ffa7fa2464be3fd0e233e9f78c6c776bdcf85be5635e04a9a8ae7973846b08","target":"graph","created_at":"2026-05-18T01:40:38Z","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"},"paper":{"abstract_excerpt":"We show that the recently suggested explanations of cosmic acceleration by the modification of gravity at small curvature suffer violent instabilities and strongly disagree with the known properties of gravitational interactions.","authors_text":"A.D. Dolgov, M. Kawasaki","cross_cats":["gr-qc","hep-th"],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2003-07-15T03:09:39Z","title":"Can modified gravity explain accelerated cosmic expansion?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0307285","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:f0eb55f31ad205023d1f2cac1b999e22082611056f8b5aa18240409805678649","target":"record","created_at":"2026-05-18T01:40:38Z","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":"c68f15b349309402546c5aa1c25795b46fce5fc6c7a86cc697694e583af50d6e","cross_cats_sorted":["gr-qc","hep-th"],"license":"","primary_cat":"astro-ph","submitted_at":"2003-07-15T03:09:39Z","title_canon_sha256":"e54364891b091ffeda2d2007d46e586a1d764a213b8beb63ea79d793bbfd9be0"},"schema_version":"1.0","source":{"id":"astro-ph/0307285","kind":"arxiv","version":2}},"canonical_sha256":"8af757344adb57f2eddbd49ce8f23069406664adb6796ce4bf730a711fdf3038","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8af757344adb57f2eddbd49ce8f23069406664adb6796ce4bf730a711fdf3038","first_computed_at":"2026-05-18T01:40:38.519835Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:38.519835Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UT1VTpioNn/GWbVY/Z8LTeqMXbS5jU+VnIwmaj+YcRe+DV6J1oUehvRND9OLP7s5v9fgMcu6sceNNcpKEfjtAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:38.520402Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0307285","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f0eb55f31ad205023d1f2cac1b999e22082611056f8b5aa18240409805678649","sha256:d8ffa7fa2464be3fd0e233e9f78c6c776bdcf85be5635e04a9a8ae7973846b08"],"state_sha256":"fd5b1cbf9b9db668fe7b0931611115e6e15a9b5741fb18acab226986d5359c77"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z7HPHPs12xjQ4/35/Gw5mJzVspMSTjZtgM7cuqexFwv+vEHrvbrklGIJKsNHRuAy8dj4eOzSKFRgfwPlqsnoDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T21:33:49.144206Z","bundle_sha256":"cf36250e2be71c90b2d9c56feaec51d7fb46fc14ffda57954921acc16c65723f"}}