{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:TEKNKYGSMEXLCVBF2WBPA2FPTX","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":"74c5e02bb43148e72b72b28be465b2d367211a2a272b916aaf2928cc4b3a5cf8","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-04-23T09:51:57Z","title_canon_sha256":"f426827471e6b42bb9a702ed6ed63d0c1044f01fe298434f955a622a7bc6a155"},"schema_version":"1.0","source":{"id":"2604.21490","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2604.21490","created_at":"2026-06-19T16:09:58Z"},{"alias_kind":"arxiv_version","alias_value":"2604.21490v2","created_at":"2026-06-19T16:09:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2604.21490","created_at":"2026-06-19T16:09:58Z"},{"alias_kind":"pith_short_12","alias_value":"TEKNKYGSMEXL","created_at":"2026-06-19T16:09:58Z"},{"alias_kind":"pith_short_16","alias_value":"TEKNKYGSMEXLCVBF","created_at":"2026-06-19T16:09:58Z"},{"alias_kind":"pith_short_8","alias_value":"TEKNKYGS","created_at":"2026-06-19T16:09:58Z"}],"graph_snapshots":[{"event_id":"sha256:d925f3d3acd0f2648bac096c5b99cf94af8fd36d06592816639fe24cf78212ae","target":"graph","created_at":"2026-06-19T16:09:58Z","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":3,"items":[{"attestation":"unclaimed","claim_id":"C1","kind":"strongest_claim","source":"verdict.strongest_claim","status":"machine_extracted","text":"We find that the growth history is highly sensitive to the choice of IR cutoff. Models based on the future event horizon are consistent with observational data and can provide a fit comparable to, or slightly better than, the ΛCDM model for suitable values of the Tsallis parameter δ. In contrast, models constructed using the particle horizon generally fail to reproduce the observed growth of structure."},{"attestation":"unclaimed","claim_id":"C2","kind":"weakest_assumption","source":"verdict.weakest_assumption","status":"machine_extracted","text":"The assumption that the Tsallis parameter δ can be freely adjusted to fit the data without additional theoretical constraints, and that the linear perturbation analysis accurately captures the relevant physics without higher-order effects."},{"attestation":"unclaimed","claim_id":"C3","kind":"one_line_summary","source":"verdict.one_line_summary","status":"machine_extracted","text":"THDE models with future event horizon IR cutoff match observed cosmic structure growth rates comparably to ΛCDM, whereas particle horizon versions do not."}],"snapshot_sha256":"b1f4ebba8148cc6262919e8f55ae89bf52c17c4f112b79e3fb6236c4d82d49af"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[{"findings_count":0,"name":"ai_meta_artifact","ran_at":"2026-05-21T12:40:18.448554Z","status":"completed","version":"1.0.0"}],"endpoint":"/pith/2604.21490/integrity.json","findings":[],"snapshot_sha256":"7c9880459b53023ccbf7b68c77164374d913cb001e1ceccb8664dfa22f4d6818","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate the viability of Tsallis holographic dark energy (THDE) models, focusing on the role of the infrared (IR) cutoff in the growth of cosmic structures. Considering two commonly used choices of the cutoff, the particle horizon and the future event horizon, we analyze the evolution of linear matter perturbations and compute the growth factor, growth rate, and the observable $f\\sigma_8(z)$. These predictions are compared with observational data from redshift-space distortion measurements. We find that the growth history is highly sensitive to the choice of IR cutoff. Models based on t","authors_text":"Biswajit Das","cross_cats":["gr-qc"],"headline":"THDE models with future event horizon IR cutoff match observed cosmic structure growth rates comparably to ΛCDM, whereas particle horizon versions do not.","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-04-23T09:51:57Z","title":"Impact of the Infrared Cutoff on Structure Formation in Tsallis Holographic Dark Energy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2604.21490","kind":"arxiv","version":2},"verdict":{"created_at":"2026-05-08T14:19:08.087355Z","id":"40d5d8e2-63a4-4f6c-8c23-1b08b4d88ea2","model_set":{"reader":"grok-4.3"},"one_line_summary":"THDE models with future event horizon IR cutoff match observed cosmic structure growth rates comparably to ΛCDM, whereas particle horizon versions do not.","pipeline_version":"pith-pipeline@v0.9.0","pith_extraction_headline":"","strongest_claim":"We find that the growth history is highly sensitive to the choice of IR cutoff. Models based on the future event horizon are consistent with observational data and can provide a fit comparable to, or slightly better than, the ΛCDM model for suitable values of the Tsallis parameter δ. In contrast, models constructed using the particle horizon generally fail to reproduce the observed growth of structure.","weakest_assumption":"The assumption that the Tsallis parameter δ can be freely adjusted to fit the data without additional theoretical constraints, and that the linear perturbation analysis accurately captures the relevant physics without higher-order effects."}},"verdict_id":"40d5d8e2-63a4-4f6c-8c23-1b08b4d88ea2"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:33193c56fc2dada514876529feeee874ab163b022c93ab076cabda81fa4fb4aa","target":"record","created_at":"2026-06-19T16:09:58Z","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":"74c5e02bb43148e72b72b28be465b2d367211a2a272b916aaf2928cc4b3a5cf8","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-04-23T09:51:57Z","title_canon_sha256":"f426827471e6b42bb9a702ed6ed63d0c1044f01fe298434f955a622a7bc6a155"},"schema_version":"1.0","source":{"id":"2604.21490","kind":"arxiv","version":2}},"canonical_sha256":"9914d560d2612eb15425d582f068af9df4cbbc41b875b1d65f5316ddb887253a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9914d560d2612eb15425d582f068af9df4cbbc41b875b1d65f5316ddb887253a","first_computed_at":"2026-06-19T16:09:58.423745Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-19T16:09:58.423745Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"200Sa0njq/HIwzXZkGskd09i1NaRdRjgUyb+Y+9Bo7WZkp1S6OU4gZJkWpzovj/8CI+YgMQjwObHjEaKZzKpAA==","signature_status":"signed_v1","signed_at":"2026-06-19T16:09:58.424171Z","signed_message":"canonical_sha256_bytes"},"source_id":"2604.21490","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:33193c56fc2dada514876529feeee874ab163b022c93ab076cabda81fa4fb4aa","sha256:d925f3d3acd0f2648bac096c5b99cf94af8fd36d06592816639fe24cf78212ae"],"state_sha256":"2a90f4e6e7eb975d6b4353b75a207f5ff5ba9fb5b2b71eb31543e8f6d69077cd"}