{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2003:3C6VXO7IUOKE5GOEA2PV3S7Q2F","short_pith_number":"pith:3C6VXO7I","canonical_record":{"source":{"id":"astro-ph/0303009","kind":"arxiv","version":4},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2003-03-01T12:39:33Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"4401122a6eb689d67ed967212fcc27057f4d10541ab22eb23827355fcf14df3e","abstract_canon_sha256":"268162c522ac62c8e518d3a726e282c59beb27a86423341106f0aae7fac50c9f"},"schema_version":"1.0"},"canonical_sha256":"d8bd5bbbe8a3944e99c4069f5dcbf0d14f8a77080936b77a0913d8b9058c484f","source":{"kind":"arxiv","id":"astro-ph/0303009","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0303009","created_at":"2026-07-04T15:17:20Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0303009v4","created_at":"2026-07-04T15:17:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0303009","created_at":"2026-07-04T15:17:20Z"},{"alias_kind":"pith_short_12","alias_value":"3C6VXO7IUOKE","created_at":"2026-07-04T15:17:20Z"},{"alias_kind":"pith_short_16","alias_value":"3C6VXO7IUOKE5GOE","created_at":"2026-07-04T15:17:20Z"},{"alias_kind":"pith_short_8","alias_value":"3C6VXO7I","created_at":"2026-07-04T15:17:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2003:3C6VXO7IUOKE5GOEA2PV3S7Q2F","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0303009","kind":"arxiv","version":4},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2003-03-01T12:39:33Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"4401122a6eb689d67ed967212fcc27057f4d10541ab22eb23827355fcf14df3e","abstract_canon_sha256":"268162c522ac62c8e518d3a726e282c59beb27a86423341106f0aae7fac50c9f"},"schema_version":"1.0"},"canonical_sha256":"d8bd5bbbe8a3944e99c4069f5dcbf0d14f8a77080936b77a0913d8b9058c484f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:17:20.867223Z","signature_b64":"e+xIpqb7KtUu3vZfo5Q0u7wCgFbN92PQa6LlmUVEqWsONNImEP/c0VZHybg7NqJfzfSs6+N8qEKPsMz0hhU9CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d8bd5bbbe8a3944e99c4069f5dcbf0d14f8a77080936b77a0913d8b9058c484f","last_reissued_at":"2026-07-04T15:17:20.866819Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:17:20.866819Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0303009","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T15:17:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p5wy9bzHN5GbMMzegNuPVDxYsXREdgkrjORH2eIHLXV03wWk0e+tSXLn2bCkVk5ril7wTOKJ9KvwTSI7I0weDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T07:16:27.819430Z"},"content_sha256":"3b5ad2caf1529912c1ea5dac3c83af0540dd1deece97f9d72eee5c6e057c6072","schema_version":"1.0","event_id":"sha256:3b5ad2caf1529912c1ea5dac3c83af0540dd1deece97f9d72eee5c6e057c6072"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2003:3C6VXO7IUOKE5GOEA2PV3S7Q2F","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Exploring the Expanding Universe and Dark Energy using the Statefinder Diagnostic","license":"","headline":"","cross_cats":["gr-qc","hep-th"],"primary_cat":"astro-ph","authors_text":"A. A. Starobinsky, Tarun Deep Saini, Ujjaini Alam, Varun Sahni","submitted_at":"2003-03-01T12:39:33Z","abstract_excerpt":"The coming few years are likely to witness a dramatic increase in high quality Sn data as current surveys add more high redshift supernovae to their inventory and as newer and deeper supernova experiments become operational. Given the current variety in dark energy models and the expected improvement in observational data, an accurate and versatile diagnostic of dark energy is the need of the hour. This paper examines the Statefinder diagnostic in the light of the proposed SNAP satellite which is expected to observe about 2000 supernovae per year. We show that the Statefinder is versatile enou"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0303009","kind":"arxiv","version":4},"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/0303009/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":"2026-07-04T15:17:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zimGYGdQeAfv6SZqdHPVqrfUv6AMYWiqKaGpp9qaQ7PaEnGVH4AdoUykpA6WRPFK9IcWpvchyQBcxEXsMSqFAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T07:16:27.819941Z"},"content_sha256":"789a68b3006f6da6ca89903405c3cd1573ce077ee141ed4af6d353e4450495df","schema_version":"1.0","event_id":"sha256:789a68b3006f6da6ca89903405c3cd1573ce077ee141ed4af6d353e4450495df"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3C6VXO7IUOKE5GOEA2PV3S7Q2F/bundle.json","state_url":"https://pith.science/pith/3C6VXO7IUOKE5GOEA2PV3S7Q2F/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3C6VXO7IUOKE5GOEA2PV3S7Q2F/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":"2026-08-16T07:16:27Z","links":{"resolver":"https://pith.science/pith/3C6VXO7IUOKE5GOEA2PV3S7Q2F","bundle":"https://pith.science/pith/3C6VXO7IUOKE5GOEA2PV3S7Q2F/bundle.json","state":"https://pith.science/pith/3C6VXO7IUOKE5GOEA2PV3S7Q2F/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3C6VXO7IUOKE5GOEA2PV3S7Q2F/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:3C6VXO7IUOKE5GOEA2PV3S7Q2F","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":"268162c522ac62c8e518d3a726e282c59beb27a86423341106f0aae7fac50c9f","cross_cats_sorted":["gr-qc","hep-th"],"license":"","primary_cat":"astro-ph","submitted_at":"2003-03-01T12:39:33Z","title_canon_sha256":"4401122a6eb689d67ed967212fcc27057f4d10541ab22eb23827355fcf14df3e"},"schema_version":"1.0","source":{"id":"astro-ph/0303009","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0303009","created_at":"2026-07-04T15:17:20Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0303009v4","created_at":"2026-07-04T15:17:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0303009","created_at":"2026-07-04T15:17:20Z"},{"alias_kind":"pith_short_12","alias_value":"3C6VXO7IUOKE","created_at":"2026-07-04T15:17:20Z"},{"alias_kind":"pith_short_16","alias_value":"3C6VXO7IUOKE5GOE","created_at":"2026-07-04T15:17:20Z"},{"alias_kind":"pith_short_8","alias_value":"3C6VXO7I","created_at":"2026-07-04T15:17:20Z"}],"graph_snapshots":[{"event_id":"sha256:789a68b3006f6da6ca89903405c3cd1573ce077ee141ed4af6d353e4450495df","target":"graph","created_at":"2026-07-04T15:17:20Z","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/0303009/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The coming few years are likely to witness a dramatic increase in high quality Sn data as current surveys add more high redshift supernovae to their inventory and as newer and deeper supernova experiments become operational. Given the current variety in dark energy models and the expected improvement in observational data, an accurate and versatile diagnostic of dark energy is the need of the hour. This paper examines the Statefinder diagnostic in the light of the proposed SNAP satellite which is expected to observe about 2000 supernovae per year. We show that the Statefinder is versatile enou","authors_text":"A. A. Starobinsky, Tarun Deep Saini, Ujjaini Alam, Varun Sahni","cross_cats":["gr-qc","hep-th"],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2003-03-01T12:39:33Z","title":"Exploring the Expanding Universe and Dark Energy using the Statefinder Diagnostic"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0303009","kind":"arxiv","version":4},"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":"sha256:3b5ad2caf1529912c1ea5dac3c83af0540dd1deece97f9d72eee5c6e057c6072","target":"record","created_at":"2026-07-04T15:17:20Z","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":"268162c522ac62c8e518d3a726e282c59beb27a86423341106f0aae7fac50c9f","cross_cats_sorted":["gr-qc","hep-th"],"license":"","primary_cat":"astro-ph","submitted_at":"2003-03-01T12:39:33Z","title_canon_sha256":"4401122a6eb689d67ed967212fcc27057f4d10541ab22eb23827355fcf14df3e"},"schema_version":"1.0","source":{"id":"astro-ph/0303009","kind":"arxiv","version":4}},"canonical_sha256":"d8bd5bbbe8a3944e99c4069f5dcbf0d14f8a77080936b77a0913d8b9058c484f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d8bd5bbbe8a3944e99c4069f5dcbf0d14f8a77080936b77a0913d8b9058c484f","first_computed_at":"2026-07-04T15:17:20.866819Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:17:20.866819Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"e+xIpqb7KtUu3vZfo5Q0u7wCgFbN92PQa6LlmUVEqWsONNImEP/c0VZHybg7NqJfzfSs6+N8qEKPsMz0hhU9CQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:17:20.867223Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0303009","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3b5ad2caf1529912c1ea5dac3c83af0540dd1deece97f9d72eee5c6e057c6072","sha256:789a68b3006f6da6ca89903405c3cd1573ce077ee141ed4af6d353e4450495df"],"state_sha256":"306fa2f1c5c896836b901027a0e94b5a26c5d3084284093c01ca21ef28bebc7d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RYtBVxMCflyJlU+HIk0wnRBhkps7oNow71XuOEu88r0Oy/148jR8/l/Cok9H/ZGGT1orgxV2nGQBnQXTxFYOAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T07:16:27.824604Z","bundle_sha256":"5dc9088728f94ff2a6a14dd55868308d9209a1c89689789615bdc87bf7a5d0f0"}}