{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:Z63XAUGBZWQXQJSFJ4OU6T2Q6T","short_pith_number":"pith:Z63XAUGB","canonical_record":{"source":{"id":"1302.1819","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.gen-ph","submitted_at":"2013-01-26T15:49:12Z","cross_cats_sorted":[],"title_canon_sha256":"d1d100385eb69aac3ab3122338171b08fc8fd1c86c115f14fbb5e8d3a7fe1974","abstract_canon_sha256":"443f1637157b76aea79987186c87ba25c4f92c48532cec94f3a9ebceb4624f4f"},"schema_version":"1.0"},"canonical_sha256":"cfb77050c1cda17826454f1d4f4f50f4f1cbe77b4bec7d381946c993a66b0cf6","source":{"kind":"arxiv","id":"1302.1819","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.1819","created_at":"2026-05-18T01:36:21Z"},{"alias_kind":"arxiv_version","alias_value":"1302.1819v3","created_at":"2026-05-18T01:36:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.1819","created_at":"2026-05-18T01:36:21Z"},{"alias_kind":"pith_short_12","alias_value":"Z63XAUGBZWQX","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"Z63XAUGBZWQXQJSF","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"Z63XAUGB","created_at":"2026-05-18T12:28:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:Z63XAUGBZWQXQJSFJ4OU6T2Q6T","target":"record","payload":{"canonical_record":{"source":{"id":"1302.1819","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.gen-ph","submitted_at":"2013-01-26T15:49:12Z","cross_cats_sorted":[],"title_canon_sha256":"d1d100385eb69aac3ab3122338171b08fc8fd1c86c115f14fbb5e8d3a7fe1974","abstract_canon_sha256":"443f1637157b76aea79987186c87ba25c4f92c48532cec94f3a9ebceb4624f4f"},"schema_version":"1.0"},"canonical_sha256":"cfb77050c1cda17826454f1d4f4f50f4f1cbe77b4bec7d381946c993a66b0cf6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:36:21.170309Z","signature_b64":"y9jkUCZEEdHlqmxRjqj5qLERJ5X6tfj4BIWauzWtplvEIx8AN2mI6euHns+HwxzE+1LYXMWjhNDYDlDfthmkCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cfb77050c1cda17826454f1d4f4f50f4f1cbe77b4bec7d381946c993a66b0cf6","last_reissued_at":"2026-05-18T01:36:21.169733Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:36:21.169733Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1302.1819","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":"2026-05-18T01:36:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e8NWHq6Zo3AUafPBdnlABqejPXVcg0wVK8u0+B50XG8XQU+qcjf4RBXppsSd/qcMjRcm5URXdNpJJK54jTZgCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T03:05:10.809922Z"},"content_sha256":"f569a65cc0d7b09c9583a078d79224371f0943c4f905b042eacdded079718d9a","schema_version":"1.0","event_id":"sha256:f569a65cc0d7b09c9583a078d79224371f0943c4f905b042eacdded079718d9a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:Z63XAUGBZWQXQJSFJ4OU6T2Q6T","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Universe with a generalized ghost dark energy and Van der Waals fluid interacting with a fluid","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.gen-ph","authors_text":"B. Pourhassan, M. Khurshudyan","submitted_at":"2013-01-26T15:49:12Z","abstract_excerpt":"In this paper, we consider an unusual connection between different fluids. Having established a research goal we would like to consider a toy model of the Universe and investigate its behavior, especially for later time evolution for well known facts. The main goal of the article is to consider a toy model of the Universe with generalized ghost dark energy, Van der Waals gas and a phenomenologically modified fluid. The origin of the last component can be understood as a result of interaction between some original fluid and some source of energy or matter in Universe. By unusual connection we m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.1819","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":""},"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":"2026-05-18T01:36:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N5sxtxb7Y+Q1n3+QBztFo33mmdqtTkW5evvXcwFV8T6IlLkThPdcqeUl15SmqgyZ9qMom2a9iKbD725KhQSHAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T03:05:10.810267Z"},"content_sha256":"23395db4ec2917a1f4931e749278c012424aeed444fad4efc740fe5d9b06b010","schema_version":"1.0","event_id":"sha256:23395db4ec2917a1f4931e749278c012424aeed444fad4efc740fe5d9b06b010"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z63XAUGBZWQXQJSFJ4OU6T2Q6T/bundle.json","state_url":"https://pith.science/pith/Z63XAUGBZWQXQJSFJ4OU6T2Q6T/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z63XAUGBZWQXQJSFJ4OU6T2Q6T/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":"2026-06-02T03:05:10Z","links":{"resolver":"https://pith.science/pith/Z63XAUGBZWQXQJSFJ4OU6T2Q6T","bundle":"https://pith.science/pith/Z63XAUGBZWQXQJSFJ4OU6T2Q6T/bundle.json","state":"https://pith.science/pith/Z63XAUGBZWQXQJSFJ4OU6T2Q6T/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z63XAUGBZWQXQJSFJ4OU6T2Q6T/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:Z63XAUGBZWQXQJSFJ4OU6T2Q6T","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":"443f1637157b76aea79987186c87ba25c4f92c48532cec94f3a9ebceb4624f4f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.gen-ph","submitted_at":"2013-01-26T15:49:12Z","title_canon_sha256":"d1d100385eb69aac3ab3122338171b08fc8fd1c86c115f14fbb5e8d3a7fe1974"},"schema_version":"1.0","source":{"id":"1302.1819","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.1819","created_at":"2026-05-18T01:36:21Z"},{"alias_kind":"arxiv_version","alias_value":"1302.1819v3","created_at":"2026-05-18T01:36:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.1819","created_at":"2026-05-18T01:36:21Z"},{"alias_kind":"pith_short_12","alias_value":"Z63XAUGBZWQX","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"Z63XAUGBZWQXQJSF","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"Z63XAUGB","created_at":"2026-05-18T12:28:09Z"}],"graph_snapshots":[{"event_id":"sha256:23395db4ec2917a1f4931e749278c012424aeed444fad4efc740fe5d9b06b010","target":"graph","created_at":"2026-05-18T01:36:21Z","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":"In this paper, we consider an unusual connection between different fluids. Having established a research goal we would like to consider a toy model of the Universe and investigate its behavior, especially for later time evolution for well known facts. The main goal of the article is to consider a toy model of the Universe with generalized ghost dark energy, Van der Waals gas and a phenomenologically modified fluid. The origin of the last component can be understood as a result of interaction between some original fluid and some source of energy or matter in Universe. By unusual connection we m","authors_text":"B. Pourhassan, M. Khurshudyan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.gen-ph","submitted_at":"2013-01-26T15:49:12Z","title":"A Universe with a generalized ghost dark energy and Van der Waals fluid interacting with a fluid"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.1819","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:f569a65cc0d7b09c9583a078d79224371f0943c4f905b042eacdded079718d9a","target":"record","created_at":"2026-05-18T01:36:21Z","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":"443f1637157b76aea79987186c87ba25c4f92c48532cec94f3a9ebceb4624f4f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.gen-ph","submitted_at":"2013-01-26T15:49:12Z","title_canon_sha256":"d1d100385eb69aac3ab3122338171b08fc8fd1c86c115f14fbb5e8d3a7fe1974"},"schema_version":"1.0","source":{"id":"1302.1819","kind":"arxiv","version":3}},"canonical_sha256":"cfb77050c1cda17826454f1d4f4f50f4f1cbe77b4bec7d381946c993a66b0cf6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cfb77050c1cda17826454f1d4f4f50f4f1cbe77b4bec7d381946c993a66b0cf6","first_computed_at":"2026-05-18T01:36:21.169733Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:36:21.169733Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"y9jkUCZEEdHlqmxRjqj5qLERJ5X6tfj4BIWauzWtplvEIx8AN2mI6euHns+HwxzE+1LYXMWjhNDYDlDfthmkCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:36:21.170309Z","signed_message":"canonical_sha256_bytes"},"source_id":"1302.1819","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f569a65cc0d7b09c9583a078d79224371f0943c4f905b042eacdded079718d9a","sha256:23395db4ec2917a1f4931e749278c012424aeed444fad4efc740fe5d9b06b010"],"state_sha256":"4dd95feeab2ce1f6ea5ed14bae64371e645fa98ca5ab2f43f1b0913a11411878"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RjDZ6cciK6h4uBuaof68Td5PrgRGkxuGgnziHYaW5w4IoI00UjTZ8/cjyTmtvIR3I09eBLDhEXGbbLEPJWC9AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T03:05:10.812346Z","bundle_sha256":"cd389284361036cae9152b71aae10ab033b55abb014f19a8aa40caeb4e645b96"}}