{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:5S7KJYTDXKDXXNICFNKKT6BXAZ","short_pith_number":"pith:5S7KJYTD","canonical_record":{"source":{"id":"1902.11014","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-02-28T10:58:12Z","cross_cats_sorted":["astro-ph.CO","gr-qc"],"title_canon_sha256":"ccf7ab74dfc7ffab7ef6b3887a12af342176e88d5544a6dc15dc7d9a8666884d","abstract_canon_sha256":"c8f1b17043e22483435c1a11164faa961b407eb7263dd183f2ff7041debef6d7"},"schema_version":"1.0"},"canonical_sha256":"ecbea4e263ba877bb5022b54a9f837064441000434e72b74ae3cd61ad6a5fd54","source":{"kind":"arxiv","id":"1902.11014","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.11014","created_at":"2026-05-17T23:42:58Z"},{"alias_kind":"arxiv_version","alias_value":"1902.11014v2","created_at":"2026-05-17T23:42:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.11014","created_at":"2026-05-17T23:42:58Z"},{"alias_kind":"pith_short_12","alias_value":"5S7KJYTDXKDX","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"5S7KJYTDXKDXXNIC","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"5S7KJYTD","created_at":"2026-05-18T12:33:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:5S7KJYTDXKDXXNICFNKKT6BXAZ","target":"record","payload":{"canonical_record":{"source":{"id":"1902.11014","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-02-28T10:58:12Z","cross_cats_sorted":["astro-ph.CO","gr-qc"],"title_canon_sha256":"ccf7ab74dfc7ffab7ef6b3887a12af342176e88d5544a6dc15dc7d9a8666884d","abstract_canon_sha256":"c8f1b17043e22483435c1a11164faa961b407eb7263dd183f2ff7041debef6d7"},"schema_version":"1.0"},"canonical_sha256":"ecbea4e263ba877bb5022b54a9f837064441000434e72b74ae3cd61ad6a5fd54","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:42:58.447277Z","signature_b64":"Ant5Wbpi4Sc7D/OBZMCSCLYUqu7vw9MD+T8odmqVSF6Iw8yvOvdSyyERm9F+M/tlbXAO2XK6Cz3hdEshmw7NAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ecbea4e263ba877bb5022b54a9f837064441000434e72b74ae3cd61ad6a5fd54","last_reissued_at":"2026-05-17T23:42:58.446757Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:42:58.446757Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1902.11014","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":"2026-05-17T23:42:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x/kcLKl2ybhsXZW8BX94XQUu1t2MVAZxCOwqV4VVh4GGx1pIBw+TLfnHUZAb3XC00XG8QpGwUwGapyiV+ia2Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T03:06:27.994767Z"},"content_sha256":"c69dbee12d03d289f84b9a9b41441a9534f046b7b153b3c5157d080ebd97952d","schema_version":"1.0","event_id":"sha256:c69dbee12d03d289f84b9a9b41441a9534f046b7b153b3c5157d080ebd97952d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:5S7KJYTDXKDXXNICFNKKT6BXAZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dark energy beyond quintessence: Constraints from the swampland","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","gr-qc"],"primary_cat":"hep-th","authors_text":"Md. Wali Hossain, Suddhasattwa Brahma","submitted_at":"2019-02-28T10:58:12Z","abstract_excerpt":"The string theory swampland proposes that there is no UV-completion for an effective field theory with an exact (metastable) de Sitter vacua, thereby ruling out standard $\\Lambda$CDM cosmology if the conjecture is taken seriously. The swampland criteria have also been shown to be in sharp tension with quintessence models under current and forthcoming observational bounds. As a logical next step, we introduce higher derivative self-interactions in the low-energy effective Lagrangian and show that one can satisfy observational constraints as well as the swampland criteria for some specific model"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.11014","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":"2026-05-17T23:42:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CAyIZmJxNOUEi685gUT3pMlxxnHgK5Kn4gXKMGHnUQY6MYTP+36ybn1kHUAst4pQXuK5r/kkxcXkGQbkydreAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T03:06:27.995528Z"},"content_sha256":"e1940f2a56dd17717bda6fbd08160b6f9c9b3d8cf48e3ea18359aebcab9038a6","schema_version":"1.0","event_id":"sha256:e1940f2a56dd17717bda6fbd08160b6f9c9b3d8cf48e3ea18359aebcab9038a6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5S7KJYTDXKDXXNICFNKKT6BXAZ/bundle.json","state_url":"https://pith.science/pith/5S7KJYTDXKDXXNICFNKKT6BXAZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5S7KJYTDXKDXXNICFNKKT6BXAZ/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":"2026-06-11T03:06:27Z","links":{"resolver":"https://pith.science/pith/5S7KJYTDXKDXXNICFNKKT6BXAZ","bundle":"https://pith.science/pith/5S7KJYTDXKDXXNICFNKKT6BXAZ/bundle.json","state":"https://pith.science/pith/5S7KJYTDXKDXXNICFNKKT6BXAZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5S7KJYTDXKDXXNICFNKKT6BXAZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:5S7KJYTDXKDXXNICFNKKT6BXAZ","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":"c8f1b17043e22483435c1a11164faa961b407eb7263dd183f2ff7041debef6d7","cross_cats_sorted":["astro-ph.CO","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-02-28T10:58:12Z","title_canon_sha256":"ccf7ab74dfc7ffab7ef6b3887a12af342176e88d5544a6dc15dc7d9a8666884d"},"schema_version":"1.0","source":{"id":"1902.11014","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.11014","created_at":"2026-05-17T23:42:58Z"},{"alias_kind":"arxiv_version","alias_value":"1902.11014v2","created_at":"2026-05-17T23:42:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.11014","created_at":"2026-05-17T23:42:58Z"},{"alias_kind":"pith_short_12","alias_value":"5S7KJYTDXKDX","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"5S7KJYTDXKDXXNIC","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"5S7KJYTD","created_at":"2026-05-18T12:33:10Z"}],"graph_snapshots":[{"event_id":"sha256:e1940f2a56dd17717bda6fbd08160b6f9c9b3d8cf48e3ea18359aebcab9038a6","target":"graph","created_at":"2026-05-17T23:42:58Z","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":"The string theory swampland proposes that there is no UV-completion for an effective field theory with an exact (metastable) de Sitter vacua, thereby ruling out standard $\\Lambda$CDM cosmology if the conjecture is taken seriously. The swampland criteria have also been shown to be in sharp tension with quintessence models under current and forthcoming observational bounds. As a logical next step, we introduce higher derivative self-interactions in the low-energy effective Lagrangian and show that one can satisfy observational constraints as well as the swampland criteria for some specific model","authors_text":"Md. Wali Hossain, Suddhasattwa Brahma","cross_cats":["astro-ph.CO","gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-02-28T10:58:12Z","title":"Dark energy beyond quintessence: Constraints from the swampland"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.11014","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:c69dbee12d03d289f84b9a9b41441a9534f046b7b153b3c5157d080ebd97952d","target":"record","created_at":"2026-05-17T23:42:58Z","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":"c8f1b17043e22483435c1a11164faa961b407eb7263dd183f2ff7041debef6d7","cross_cats_sorted":["astro-ph.CO","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-02-28T10:58:12Z","title_canon_sha256":"ccf7ab74dfc7ffab7ef6b3887a12af342176e88d5544a6dc15dc7d9a8666884d"},"schema_version":"1.0","source":{"id":"1902.11014","kind":"arxiv","version":2}},"canonical_sha256":"ecbea4e263ba877bb5022b54a9f837064441000434e72b74ae3cd61ad6a5fd54","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ecbea4e263ba877bb5022b54a9f837064441000434e72b74ae3cd61ad6a5fd54","first_computed_at":"2026-05-17T23:42:58.446757Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:42:58.446757Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ant5Wbpi4Sc7D/OBZMCSCLYUqu7vw9MD+T8odmqVSF6Iw8yvOvdSyyERm9F+M/tlbXAO2XK6Cz3hdEshmw7NAg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:42:58.447277Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.11014","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c69dbee12d03d289f84b9a9b41441a9534f046b7b153b3c5157d080ebd97952d","sha256:e1940f2a56dd17717bda6fbd08160b6f9c9b3d8cf48e3ea18359aebcab9038a6"],"state_sha256":"7ed70776f781beede7b26e4b990bd08ea5646e3f12c7417f6f2008090355313f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"llr2hHAkACy10tyQHtYRz6MlW0EF5HZbzM0aS3LBKzu84wXgNcFbM1msRSGUnCb6Kos6H2s2KMilzzgKl5OgDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T03:06:27.999779Z","bundle_sha256":"d493b39eeae2238db2da48f89261b44344d6495ec20662270011345e95b6832f"}}