{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1999:ZSLR46OBU6UOPRIIWK7GRQ534B","short_pith_number":"pith:ZSLR46OB","canonical_record":{"source":{"id":"astro-ph/9910097","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1999-10-05T23:01:52Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"9813869e4261badcc459702a3cc394a9863dc2ae3d0dbe999d1acc76584b87b1","abstract_canon_sha256":"1324387bcd4468e1c37ab6849510c7a1f16b71c09bb838a8132e1acc392574ab"},"schema_version":"1.0"},"canonical_sha256":"cc971e79c1a7a8e7c508b2be68c3bbe04789dd81fef2e308f271324f12cd0707","source":{"kind":"arxiv","id":"astro-ph/9910097","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9910097","created_at":"2026-07-04T16:11:40Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9910097v3","created_at":"2026-07-04T16:11:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9910097","created_at":"2026-07-04T16:11:40Z"},{"alias_kind":"pith_short_12","alias_value":"ZSLR46OBU6UO","created_at":"2026-07-04T16:11:40Z"},{"alias_kind":"pith_short_16","alias_value":"ZSLR46OBU6UOPRII","created_at":"2026-07-04T16:11:40Z"},{"alias_kind":"pith_short_8","alias_value":"ZSLR46OB","created_at":"2026-07-04T16:11:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1999:ZSLR46OBU6UOPRIIWK7GRQ534B","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/9910097","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1999-10-05T23:01:52Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"9813869e4261badcc459702a3cc394a9863dc2ae3d0dbe999d1acc76584b87b1","abstract_canon_sha256":"1324387bcd4468e1c37ab6849510c7a1f16b71c09bb838a8132e1acc392574ab"},"schema_version":"1.0"},"canonical_sha256":"cc971e79c1a7a8e7c508b2be68c3bbe04789dd81fef2e308f271324f12cd0707","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:11:40.567061Z","signature_b64":"cEqBomzVnHwc0UEmP7v9Sf12twSfDJ5hHeEy+/XaYxFmOPHMuTtQ1rqlWhPqNJe3EWh+3CwvnKILLqa0p6j7CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cc971e79c1a7a8e7c508b2be68c3bbe04789dd81fef2e308f271324f12cd0707","last_reissued_at":"2026-07-04T16:11:40.566654Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:11:40.566654Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/9910097","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T16:11:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aBksY8j7Wt0r8qFEkvIOx87IhIucsAhqn34cERuMzxrI6Ea8fv+8VqWbv+Z8jD4beAJbsyNjh7afzLAsRJrnBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T18:38:51.005927Z"},"content_sha256":"7a7d6146358e70f1581fab36adb6c2e2fffcc3fca1693635e9fa5f82ccde0fb0","schema_version":"1.0","event_id":"sha256:7a7d6146358e70f1581fab36adb6c2e2fffcc3fca1693635e9fa5f82ccde0fb0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1999:ZSLR46OBU6UOPRIIWK7GRQ534B","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A New Cosmological Model of Quintessence and Dark Matter","license":"","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph","authors_text":"Limin Wang, Varun Sahni","submitted_at":"1999-10-05T23:01:52Z","abstract_excerpt":"We propose a new class of quintessence models in which late times oscillations of a scalar field give rise to an effective equation of state which can be negative and hence drive the observed acceleration of the universe. Our ansatz provides a unified picture of quintessence and a new form of dark matter we call \"Frustrated Cold Dark Matter\" (FCDM). FCDM inhibits gravitational clustering on small scales and could provide a natural resolution to the core density problem for disc galaxy halos. Since the quintessence field rolls towards a small value, constraints on slow-roll quintessence models "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9910097","kind":"arxiv","version":3},"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/9910097/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":"2026-07-04T16:11:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ucggo3TwVxwoZ8qzL1CbS1h5HK8GoXXZeRsOXfr2OyAI0sUG6ikhQ19Nm8suVnsQzKsw4cAp03iekmQsTgsvDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T18:38:51.006881Z"},"content_sha256":"12ecb375ac13e531c6b1fbc19cf5e6afac9146b3e86ae28264a6869fae2b7730","schema_version":"1.0","event_id":"sha256:12ecb375ac13e531c6b1fbc19cf5e6afac9146b3e86ae28264a6869fae2b7730"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZSLR46OBU6UOPRIIWK7GRQ534B/bundle.json","state_url":"https://pith.science/pith/ZSLR46OBU6UOPRIIWK7GRQ534B/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZSLR46OBU6UOPRIIWK7GRQ534B/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":"2026-08-10T18:38:51Z","links":{"resolver":"https://pith.science/pith/ZSLR46OBU6UOPRIIWK7GRQ534B","bundle":"https://pith.science/pith/ZSLR46OBU6UOPRIIWK7GRQ534B/bundle.json","state":"https://pith.science/pith/ZSLR46OBU6UOPRIIWK7GRQ534B/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZSLR46OBU6UOPRIIWK7GRQ534B/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:ZSLR46OBU6UOPRIIWK7GRQ534B","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":"1324387bcd4468e1c37ab6849510c7a1f16b71c09bb838a8132e1acc392574ab","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"1999-10-05T23:01:52Z","title_canon_sha256":"9813869e4261badcc459702a3cc394a9863dc2ae3d0dbe999d1acc76584b87b1"},"schema_version":"1.0","source":{"id":"astro-ph/9910097","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9910097","created_at":"2026-07-04T16:11:40Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9910097v3","created_at":"2026-07-04T16:11:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9910097","created_at":"2026-07-04T16:11:40Z"},{"alias_kind":"pith_short_12","alias_value":"ZSLR46OBU6UO","created_at":"2026-07-04T16:11:40Z"},{"alias_kind":"pith_short_16","alias_value":"ZSLR46OBU6UOPRII","created_at":"2026-07-04T16:11:40Z"},{"alias_kind":"pith_short_8","alias_value":"ZSLR46OB","created_at":"2026-07-04T16:11:40Z"}],"graph_snapshots":[{"event_id":"sha256:12ecb375ac13e531c6b1fbc19cf5e6afac9146b3e86ae28264a6869fae2b7730","target":"graph","created_at":"2026-07-04T16:11:40Z","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/9910097/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We propose a new class of quintessence models in which late times oscillations of a scalar field give rise to an effective equation of state which can be negative and hence drive the observed acceleration of the universe. Our ansatz provides a unified picture of quintessence and a new form of dark matter we call \"Frustrated Cold Dark Matter\" (FCDM). FCDM inhibits gravitational clustering on small scales and could provide a natural resolution to the core density problem for disc galaxy halos. Since the quintessence field rolls towards a small value, constraints on slow-roll quintessence models ","authors_text":"Limin Wang, Varun Sahni","cross_cats":["hep-ph"],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1999-10-05T23:01:52Z","title":"A New Cosmological Model of Quintessence and Dark Matter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9910097","kind":"arxiv","version":3},"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":"sha256:7a7d6146358e70f1581fab36adb6c2e2fffcc3fca1693635e9fa5f82ccde0fb0","target":"record","created_at":"2026-07-04T16:11:40Z","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":"1324387bcd4468e1c37ab6849510c7a1f16b71c09bb838a8132e1acc392574ab","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"1999-10-05T23:01:52Z","title_canon_sha256":"9813869e4261badcc459702a3cc394a9863dc2ae3d0dbe999d1acc76584b87b1"},"schema_version":"1.0","source":{"id":"astro-ph/9910097","kind":"arxiv","version":3}},"canonical_sha256":"cc971e79c1a7a8e7c508b2be68c3bbe04789dd81fef2e308f271324f12cd0707","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cc971e79c1a7a8e7c508b2be68c3bbe04789dd81fef2e308f271324f12cd0707","first_computed_at":"2026-07-04T16:11:40.566654Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:11:40.566654Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cEqBomzVnHwc0UEmP7v9Sf12twSfDJ5hHeEy+/XaYxFmOPHMuTtQ1rqlWhPqNJe3EWh+3CwvnKILLqa0p6j7CA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:11:40.567061Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9910097","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7a7d6146358e70f1581fab36adb6c2e2fffcc3fca1693635e9fa5f82ccde0fb0","sha256:12ecb375ac13e531c6b1fbc19cf5e6afac9146b3e86ae28264a6869fae2b7730"],"state_sha256":"e638fdb325373f5256147018c78447e0cbb67900508627655a3e942d398a14f1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+Y3k+fcYV4uhHinlYcTeJmjg7cYQXXwdO5OY/CNt3ztuyKGRJY1f7zGwuYxCB9Z4R9C+Cr+gBIriKZml8pA1AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T18:38:51.015783Z","bundle_sha256":"9df33afc2d09f69eaedaec292eb351b0c08a701dd0d8d5411be18ec0683a87e6"}}