{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:QW575UPVOCEUE6673BOQKOW75O","short_pith_number":"pith:QW575UPV","canonical_record":{"source":{"id":"2508.16280","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2025-08-22T10:36:05Z","cross_cats_sorted":[],"title_canon_sha256":"710c5191a70f06c045d430093c7d0ac8bc18258d96f978ee915eae60e95e0f01","abstract_canon_sha256":"d3d3502d5d64f5f13cf9030bb02d14af2fb00497716d3e22aaaffe708014f669"},"schema_version":"1.0"},"canonical_sha256":"85bbfed1f57089427bdfd85d053adfeb84f416ad0942d08d2853249819dd5aef","source":{"kind":"arxiv","id":"2508.16280","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.16280","created_at":"2026-07-05T11:57:45Z"},{"alias_kind":"arxiv_version","alias_value":"2508.16280v1","created_at":"2026-07-05T11:57:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.16280","created_at":"2026-07-05T11:57:45Z"},{"alias_kind":"pith_short_12","alias_value":"QW575UPVOCEU","created_at":"2026-07-05T11:57:45Z"},{"alias_kind":"pith_short_16","alias_value":"QW575UPVOCEUE667","created_at":"2026-07-05T11:57:45Z"},{"alias_kind":"pith_short_8","alias_value":"QW575UPV","created_at":"2026-07-05T11:57:45Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:QW575UPVOCEUE6673BOQKOW75O","target":"record","payload":{"canonical_record":{"source":{"id":"2508.16280","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2025-08-22T10:36:05Z","cross_cats_sorted":[],"title_canon_sha256":"710c5191a70f06c045d430093c7d0ac8bc18258d96f978ee915eae60e95e0f01","abstract_canon_sha256":"d3d3502d5d64f5f13cf9030bb02d14af2fb00497716d3e22aaaffe708014f669"},"schema_version":"1.0"},"canonical_sha256":"85bbfed1f57089427bdfd85d053adfeb84f416ad0942d08d2853249819dd5aef","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:57:45.355813Z","signature_b64":"oSk5N88jGNIFNN3lj2HPOCgv4gf793f1tmJEa0PDJXMYxEDBC+GHC4brp4qoZKtHIc/QrZPhoZ396J/en9McAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"85bbfed1f57089427bdfd85d053adfeb84f416ad0942d08d2853249819dd5aef","last_reissued_at":"2026-07-05T11:57:45.355357Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:57:45.355357Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2508.16280","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T11:57:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KmLr2jD5qU5EJecSeTTs/eMiayQPsPtYKIa/cyHWzketbWPytE0IR5NVxqKJCCRYLnZ2UxxFfMdXSyBHrTCUAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T09:07:28.282929Z"},"content_sha256":"cd0e9f444e2dd7c6bc1db9307e61227e5308ba466554e251c01c10bb6adfc8a8","schema_version":"1.0","event_id":"sha256:cd0e9f444e2dd7c6bc1db9307e61227e5308ba466554e251c01c10bb6adfc8a8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:QW575UPVOCEUE6673BOQKOW75O","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Non-flat Universe with Tsallis holographic dark energy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Alexander S. Tepliakov, Artyom V. Astashenok","submitted_at":"2025-08-22T10:36:05Z","abstract_excerpt":"We investigated evolution of metric and density perturbations for Tsallis model of holographic dark energy with energy density $\\sim L^{2\\gamma - 4}$, where $L$ is length of event horizon or inverse Hubble parameter and $\\gamma$ is parameter of non-additivity close to $1$. Because holographic dark energy is not an ordinary cosmological fluid but a phenomena caused by boundaries of the universe, the ordinary analysis for perturbations is not suitable. One needs to consider perturbations of the future event horizon. For realistic values of parameters it was discovered that perturbations of dark "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.16280","kind":"arxiv","version":1},"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/2508.16280/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":"2026-07-05T11:57:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tdEi5c1YK/myRJ/tuFKf+/wSOi4/iz8F7v+r3DGS4J4z9Gs6lehXeJnbjuJZWWuZwwRlJ5+YR1s7MxRxOagYBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T09:07:28.283455Z"},"content_sha256":"df3ae969adac0618f3bb8cbdbc0c9473223d647e7c63fa8b34cbef0adced8862","schema_version":"1.0","event_id":"sha256:df3ae969adac0618f3bb8cbdbc0c9473223d647e7c63fa8b34cbef0adced8862"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QW575UPVOCEUE6673BOQKOW75O/bundle.json","state_url":"https://pith.science/pith/QW575UPVOCEUE6673BOQKOW75O/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QW575UPVOCEUE6673BOQKOW75O/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":"2026-08-14T09:07:28Z","links":{"resolver":"https://pith.science/pith/QW575UPVOCEUE6673BOQKOW75O","bundle":"https://pith.science/pith/QW575UPVOCEUE6673BOQKOW75O/bundle.json","state":"https://pith.science/pith/QW575UPVOCEUE6673BOQKOW75O/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QW575UPVOCEUE6673BOQKOW75O/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:QW575UPVOCEUE6673BOQKOW75O","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":"d3d3502d5d64f5f13cf9030bb02d14af2fb00497716d3e22aaaffe708014f669","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2025-08-22T10:36:05Z","title_canon_sha256":"710c5191a70f06c045d430093c7d0ac8bc18258d96f978ee915eae60e95e0f01"},"schema_version":"1.0","source":{"id":"2508.16280","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.16280","created_at":"2026-07-05T11:57:45Z"},{"alias_kind":"arxiv_version","alias_value":"2508.16280v1","created_at":"2026-07-05T11:57:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.16280","created_at":"2026-07-05T11:57:45Z"},{"alias_kind":"pith_short_12","alias_value":"QW575UPVOCEU","created_at":"2026-07-05T11:57:45Z"},{"alias_kind":"pith_short_16","alias_value":"QW575UPVOCEUE667","created_at":"2026-07-05T11:57:45Z"},{"alias_kind":"pith_short_8","alias_value":"QW575UPV","created_at":"2026-07-05T11:57:45Z"}],"graph_snapshots":[{"event_id":"sha256:df3ae969adac0618f3bb8cbdbc0c9473223d647e7c63fa8b34cbef0adced8862","target":"graph","created_at":"2026-07-05T11:57:45Z","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/2508.16280/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigated evolution of metric and density perturbations for Tsallis model of holographic dark energy with energy density $\\sim L^{2\\gamma - 4}$, where $L$ is length of event horizon or inverse Hubble parameter and $\\gamma$ is parameter of non-additivity close to $1$. Because holographic dark energy is not an ordinary cosmological fluid but a phenomena caused by boundaries of the universe, the ordinary analysis for perturbations is not suitable. One needs to consider perturbations of the future event horizon. For realistic values of parameters it was discovered that perturbations of dark ","authors_text":"Alexander S. Tepliakov, Artyom V. Astashenok","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2025-08-22T10:36:05Z","title":"Non-flat Universe with Tsallis holographic dark energy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.16280","kind":"arxiv","version":1},"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:cd0e9f444e2dd7c6bc1db9307e61227e5308ba466554e251c01c10bb6adfc8a8","target":"record","created_at":"2026-07-05T11:57:45Z","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":"d3d3502d5d64f5f13cf9030bb02d14af2fb00497716d3e22aaaffe708014f669","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2025-08-22T10:36:05Z","title_canon_sha256":"710c5191a70f06c045d430093c7d0ac8bc18258d96f978ee915eae60e95e0f01"},"schema_version":"1.0","source":{"id":"2508.16280","kind":"arxiv","version":1}},"canonical_sha256":"85bbfed1f57089427bdfd85d053adfeb84f416ad0942d08d2853249819dd5aef","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"85bbfed1f57089427bdfd85d053adfeb84f416ad0942d08d2853249819dd5aef","first_computed_at":"2026-07-05T11:57:45.355357Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:57:45.355357Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oSk5N88jGNIFNN3lj2HPOCgv4gf793f1tmJEa0PDJXMYxEDBC+GHC4brp4qoZKtHIc/QrZPhoZ396J/en9McAg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:57:45.355813Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.16280","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cd0e9f444e2dd7c6bc1db9307e61227e5308ba466554e251c01c10bb6adfc8a8","sha256:df3ae969adac0618f3bb8cbdbc0c9473223d647e7c63fa8b34cbef0adced8862"],"state_sha256":"c4aaa75a744b282e7157a810697b206e0eba607d2a3acf54dc6265a6ab118c76"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RI7WNM9Z2UO5lFRWMXMsXvgPxDXY+n/qcBjY838QDvyLH4Qn/4CxvOyC+GfHopcT9rDcFh1gfJaKZxxjM4IxDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T09:07:28.288329Z","bundle_sha256":"1cae05925c5d55bb8d961958fb7100258e52c3a42fe483c298a155d0f1f13ec6"}}