{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:MDCHCRG3GT47FOL4LKZNOSIIC2","short_pith_number":"pith:MDCHCRG3","canonical_record":{"source":{"id":"1410.6588","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-10-24T06:18:03Z","cross_cats_sorted":[],"title_canon_sha256":"a3a9f0403227990f7bd20660ad69c6d2389abe76cb6d520132e344118e00579d","abstract_canon_sha256":"adc3502a9b5b52a79d0760aca67296c9fdbf09bd76e1c0bafd48ce2f6fb4201d"},"schema_version":"1.0"},"canonical_sha256":"60c47144db34f9f2b97c5ab2d7490816bfa0fe697b93efa5522adbd9737d61f5","source":{"kind":"arxiv","id":"1410.6588","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.6588","created_at":"2026-05-18T02:19:50Z"},{"alias_kind":"arxiv_version","alias_value":"1410.6588v2","created_at":"2026-05-18T02:19:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.6588","created_at":"2026-05-18T02:19:50Z"},{"alias_kind":"pith_short_12","alias_value":"MDCHCRG3GT47","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_16","alias_value":"MDCHCRG3GT47FOL4","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_8","alias_value":"MDCHCRG3","created_at":"2026-05-18T12:28:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:MDCHCRG3GT47FOL4LKZNOSIIC2","target":"record","payload":{"canonical_record":{"source":{"id":"1410.6588","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-10-24T06:18:03Z","cross_cats_sorted":[],"title_canon_sha256":"a3a9f0403227990f7bd20660ad69c6d2389abe76cb6d520132e344118e00579d","abstract_canon_sha256":"adc3502a9b5b52a79d0760aca67296c9fdbf09bd76e1c0bafd48ce2f6fb4201d"},"schema_version":"1.0"},"canonical_sha256":"60c47144db34f9f2b97c5ab2d7490816bfa0fe697b93efa5522adbd9737d61f5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:19:50.351180Z","signature_b64":"NLxRMNMKOSGu6JM2EfEHqKEZk/zl7PCRfZ6E7KIjCcS7bDx0J/tdJOX8WdGac6TBQP2pRmP3pNKeMejDcpscCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"60c47144db34f9f2b97c5ab2d7490816bfa0fe697b93efa5522adbd9737d61f5","last_reissued_at":"2026-05-18T02:19:50.350675Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:19:50.350675Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1410.6588","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":"2026-05-18T02:19:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XzaBNUh8sev51PEKZdjDEQTuAanETHvds5MqcZHLwG9V7eyHdJEgP5G8mPkbg3U8wFNbfjfMy37Y8mI2zlvICA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T18:21:47.495847Z"},"content_sha256":"2f57698ef850c352572497dff7148d4621a5767206eb487a229af18a36b0c4ca","schema_version":"1.0","event_id":"sha256:2f57698ef850c352572497dff7148d4621a5767206eb487a229af18a36b0c4ca"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:MDCHCRG3GT47FOL4LKZNOSIIC2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Observational constraints on Modified Chaplygin Gas from Large Scale Structure","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Aroonkumar Beesham, Bikash Chandra Paul, Prasenjit Thakur","submitted_at":"2014-10-24T06:18:03Z","abstract_excerpt":"We study cosmological models with modified Chaplygin gas (in short, MCG) to determine observational constraints on its EoS parameters. The observational data of the background and the growth tests are employed. The background test data namely, H(z)-z data, CMB shift parameter, Baryonic acoustic oscillations (BAO) peak parameter, SN Ia data are considered to study the dynamical aspects of the universe. The growth test data we employ here consists of the linear growth function for the large scale structures of the universe, models are explored assuming MCG as a candidate for dark energy. Conside"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.6588","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":"2026-05-18T02:19:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lsCiaAblWItKZZ2GtItHMfUMlEz5wrWrhbwSoC8LoUtr+vmVe/OoRkzykDJwuDmIFfiZdx7/zK8MJsyS2IkJAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T18:21:47.496259Z"},"content_sha256":"47cb77067e3f97e9d81cffcb9853469c77d77a4b636cea89e5185a3849816d2d","schema_version":"1.0","event_id":"sha256:47cb77067e3f97e9d81cffcb9853469c77d77a4b636cea89e5185a3849816d2d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MDCHCRG3GT47FOL4LKZNOSIIC2/bundle.json","state_url":"https://pith.science/pith/MDCHCRG3GT47FOL4LKZNOSIIC2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MDCHCRG3GT47FOL4LKZNOSIIC2/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":"2026-05-23T18:21:47Z","links":{"resolver":"https://pith.science/pith/MDCHCRG3GT47FOL4LKZNOSIIC2","bundle":"https://pith.science/pith/MDCHCRG3GT47FOL4LKZNOSIIC2/bundle.json","state":"https://pith.science/pith/MDCHCRG3GT47FOL4LKZNOSIIC2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MDCHCRG3GT47FOL4LKZNOSIIC2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:MDCHCRG3GT47FOL4LKZNOSIIC2","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":"adc3502a9b5b52a79d0760aca67296c9fdbf09bd76e1c0bafd48ce2f6fb4201d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-10-24T06:18:03Z","title_canon_sha256":"a3a9f0403227990f7bd20660ad69c6d2389abe76cb6d520132e344118e00579d"},"schema_version":"1.0","source":{"id":"1410.6588","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.6588","created_at":"2026-05-18T02:19:50Z"},{"alias_kind":"arxiv_version","alias_value":"1410.6588v2","created_at":"2026-05-18T02:19:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.6588","created_at":"2026-05-18T02:19:50Z"},{"alias_kind":"pith_short_12","alias_value":"MDCHCRG3GT47","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_16","alias_value":"MDCHCRG3GT47FOL4","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_8","alias_value":"MDCHCRG3","created_at":"2026-05-18T12:28:38Z"}],"graph_snapshots":[{"event_id":"sha256:47cb77067e3f97e9d81cffcb9853469c77d77a4b636cea89e5185a3849816d2d","target":"graph","created_at":"2026-05-18T02:19:50Z","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 study cosmological models with modified Chaplygin gas (in short, MCG) to determine observational constraints on its EoS parameters. The observational data of the background and the growth tests are employed. The background test data namely, H(z)-z data, CMB shift parameter, Baryonic acoustic oscillations (BAO) peak parameter, SN Ia data are considered to study the dynamical aspects of the universe. The growth test data we employ here consists of the linear growth function for the large scale structures of the universe, models are explored assuming MCG as a candidate for dark energy. Conside","authors_text":"Aroonkumar Beesham, Bikash Chandra Paul, Prasenjit Thakur","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-10-24T06:18:03Z","title":"Observational constraints on Modified Chaplygin Gas from Large Scale Structure"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.6588","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":"sha256:2f57698ef850c352572497dff7148d4621a5767206eb487a229af18a36b0c4ca","target":"record","created_at":"2026-05-18T02:19:50Z","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":"adc3502a9b5b52a79d0760aca67296c9fdbf09bd76e1c0bafd48ce2f6fb4201d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-10-24T06:18:03Z","title_canon_sha256":"a3a9f0403227990f7bd20660ad69c6d2389abe76cb6d520132e344118e00579d"},"schema_version":"1.0","source":{"id":"1410.6588","kind":"arxiv","version":2}},"canonical_sha256":"60c47144db34f9f2b97c5ab2d7490816bfa0fe697b93efa5522adbd9737d61f5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"60c47144db34f9f2b97c5ab2d7490816bfa0fe697b93efa5522adbd9737d61f5","first_computed_at":"2026-05-18T02:19:50.350675Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:19:50.350675Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NLxRMNMKOSGu6JM2EfEHqKEZk/zl7PCRfZ6E7KIjCcS7bDx0J/tdJOX8WdGac6TBQP2pRmP3pNKeMejDcpscCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:19:50.351180Z","signed_message":"canonical_sha256_bytes"},"source_id":"1410.6588","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2f57698ef850c352572497dff7148d4621a5767206eb487a229af18a36b0c4ca","sha256:47cb77067e3f97e9d81cffcb9853469c77d77a4b636cea89e5185a3849816d2d"],"state_sha256":"0892552faf95871125a9d99145c6d6f62a213ab983d8159ddf150cef290dd0ed"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BJWqZY0b9RCUwCO4DbB7nxWyOxk+4//2JGbrjCkx/JJ7EZHKBdUB4eDJpxaZhoJXNcYKS3FJHMjM6R7XbrhIDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-23T18:21:47.499371Z","bundle_sha256":"8a33a717e4dce9ea6a3a3353d3296f96c4239db40e553877d0f9544b1d7962e4"}}