{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:XBQ67ZWZNBGZOCZCTMXKEA3EW7","short_pith_number":"pith:XBQ67ZWZ","canonical_record":{"source":{"id":"2605.22143","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2026-05-21T08:14:56Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"5f8065459d0073f40a6a6a9d9c86661d2ab6ff9bb9be3598d87e86c978dc5c39","abstract_canon_sha256":"8250f4824db57c5de87c5135fba11f5a7032e02c820270fe5851ad0d70ed2aed"},"schema_version":"1.0"},"canonical_sha256":"b861efe6d9684d970b229b2ea20364b7f8ce76723bc8810a60c8c643da8a9193","source":{"kind":"arxiv","id":"2605.22143","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.22143","created_at":"2026-05-22T01:04:28Z"},{"alias_kind":"arxiv_version","alias_value":"2605.22143v1","created_at":"2026-05-22T01:04:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.22143","created_at":"2026-05-22T01:04:28Z"},{"alias_kind":"pith_short_12","alias_value":"XBQ67ZWZNBGZ","created_at":"2026-05-22T01:04:28Z"},{"alias_kind":"pith_short_16","alias_value":"XBQ67ZWZNBGZOCZC","created_at":"2026-05-22T01:04:28Z"},{"alias_kind":"pith_short_8","alias_value":"XBQ67ZWZ","created_at":"2026-05-22T01:04:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:XBQ67ZWZNBGZOCZCTMXKEA3EW7","target":"record","payload":{"canonical_record":{"source":{"id":"2605.22143","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2026-05-21T08:14:56Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"5f8065459d0073f40a6a6a9d9c86661d2ab6ff9bb9be3598d87e86c978dc5c39","abstract_canon_sha256":"8250f4824db57c5de87c5135fba11f5a7032e02c820270fe5851ad0d70ed2aed"},"schema_version":"1.0"},"canonical_sha256":"b861efe6d9684d970b229b2ea20364b7f8ce76723bc8810a60c8c643da8a9193","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-22T01:04:28.326446Z","signature_b64":"J+kwASviU5QM265FpKcSYFSL87tUGjsbxa9jStPN475n6Stld1vCIp2ItAdSaW8SNr+u0Vd08r5Ql3WZbuWZDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b861efe6d9684d970b229b2ea20364b7f8ce76723bc8810a60c8c643da8a9193","last_reissued_at":"2026-05-22T01:04:28.325516Z","signature_status":"signed_v1","first_computed_at":"2026-05-22T01:04:28.325516Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.22143","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":"2026-05-22T01:04:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Em9xu+hsbDzLr6wh7gLKOMsAk1u0QOoi2Dg2G2vmOn9NAcnx6Ev1uclH9DU+5bPub9ruNdy0+dKW+T71MWYwDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T16:28:21.990635Z"},"content_sha256":"3836e3f09121f0d3141fbd0809b041af2b17721f23d3b77f04fb24df43cf634e","schema_version":"1.0","event_id":"sha256:3836e3f09121f0d3141fbd0809b041af2b17721f23d3b77f04fb24df43cf634e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:XBQ67ZWZNBGZOCZCTMXKEA3EW7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Holographic Dark Energy with Hubble Radius as an Infrared Cutoff in Einstein-Cartan Gravity","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Jungjai Lee, Yongjun Yun","submitted_at":"2026-05-21T08:14:56Z","abstract_excerpt":"In this work, we investigate non-interacting holographic dark energy (HDE) with the Hubble radius as the infrared cutoff in Einstein-Cartan gravity. We derive the Einstein-Cartan equations from the action principle and obtain Friedmann-like equations by introducing a torsion scalar. Considering a Weyssenhoff spin fluid, we determine the scaling behavior of the torsion scalar as $\\Phi \\sim a^{-3}$ without introducing an ad hoc ansatz, resolving the ansatz problem of previous torsion scalar scenarios. In the absence of interactions between dark matter and dark energy, the torsion scalar shifts t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.22143","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/2605.22143/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":"2026-05-22T01:04:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I73OCgkPWNGCHz+coVqFwWOYSz9GdxBZVXlMQnNExwLQtNaK0+HO9rgnjy+AgTDFjs26gx/zVn62Zi31U1XCAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T16:28:21.991360Z"},"content_sha256":"ff88d141530c2fceabf7caf03f2f7886fd24fa50fdd804bc1adc771116d34ccc","schema_version":"1.0","event_id":"sha256:ff88d141530c2fceabf7caf03f2f7886fd24fa50fdd804bc1adc771116d34ccc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XBQ67ZWZNBGZOCZCTMXKEA3EW7/bundle.json","state_url":"https://pith.science/pith/XBQ67ZWZNBGZOCZCTMXKEA3EW7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XBQ67ZWZNBGZOCZCTMXKEA3EW7/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":"2026-05-31T16:28:21Z","links":{"resolver":"https://pith.science/pith/XBQ67ZWZNBGZOCZCTMXKEA3EW7","bundle":"https://pith.science/pith/XBQ67ZWZNBGZOCZCTMXKEA3EW7/bundle.json","state":"https://pith.science/pith/XBQ67ZWZNBGZOCZCTMXKEA3EW7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XBQ67ZWZNBGZOCZCTMXKEA3EW7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:XBQ67ZWZNBGZOCZCTMXKEA3EW7","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":"8250f4824db57c5de87c5135fba11f5a7032e02c820270fe5851ad0d70ed2aed","cross_cats_sorted":["hep-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2026-05-21T08:14:56Z","title_canon_sha256":"5f8065459d0073f40a6a6a9d9c86661d2ab6ff9bb9be3598d87e86c978dc5c39"},"schema_version":"1.0","source":{"id":"2605.22143","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.22143","created_at":"2026-05-22T01:04:28Z"},{"alias_kind":"arxiv_version","alias_value":"2605.22143v1","created_at":"2026-05-22T01:04:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.22143","created_at":"2026-05-22T01:04:28Z"},{"alias_kind":"pith_short_12","alias_value":"XBQ67ZWZNBGZ","created_at":"2026-05-22T01:04:28Z"},{"alias_kind":"pith_short_16","alias_value":"XBQ67ZWZNBGZOCZC","created_at":"2026-05-22T01:04:28Z"},{"alias_kind":"pith_short_8","alias_value":"XBQ67ZWZ","created_at":"2026-05-22T01:04:28Z"}],"graph_snapshots":[{"event_id":"sha256:ff88d141530c2fceabf7caf03f2f7886fd24fa50fdd804bc1adc771116d34ccc","target":"graph","created_at":"2026-05-22T01:04:28Z","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/2605.22143/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this work, we investigate non-interacting holographic dark energy (HDE) with the Hubble radius as the infrared cutoff in Einstein-Cartan gravity. We derive the Einstein-Cartan equations from the action principle and obtain Friedmann-like equations by introducing a torsion scalar. Considering a Weyssenhoff spin fluid, we determine the scaling behavior of the torsion scalar as $\\Phi \\sim a^{-3}$ without introducing an ad hoc ansatz, resolving the ansatz problem of previous torsion scalar scenarios. In the absence of interactions between dark matter and dark energy, the torsion scalar shifts t","authors_text":"Jungjai Lee, Yongjun Yun","cross_cats":["hep-th"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2026-05-21T08:14:56Z","title":"Holographic Dark Energy with Hubble Radius as an Infrared Cutoff in Einstein-Cartan Gravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.22143","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":"sha256:3836e3f09121f0d3141fbd0809b041af2b17721f23d3b77f04fb24df43cf634e","target":"record","created_at":"2026-05-22T01:04:28Z","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":"8250f4824db57c5de87c5135fba11f5a7032e02c820270fe5851ad0d70ed2aed","cross_cats_sorted":["hep-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2026-05-21T08:14:56Z","title_canon_sha256":"5f8065459d0073f40a6a6a9d9c86661d2ab6ff9bb9be3598d87e86c978dc5c39"},"schema_version":"1.0","source":{"id":"2605.22143","kind":"arxiv","version":1}},"canonical_sha256":"b861efe6d9684d970b229b2ea20364b7f8ce76723bc8810a60c8c643da8a9193","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b861efe6d9684d970b229b2ea20364b7f8ce76723bc8810a60c8c643da8a9193","first_computed_at":"2026-05-22T01:04:28.325516Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-22T01:04:28.325516Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"J+kwASviU5QM265FpKcSYFSL87tUGjsbxa9jStPN475n6Stld1vCIp2ItAdSaW8SNr+u0Vd08r5Ql3WZbuWZDg==","signature_status":"signed_v1","signed_at":"2026-05-22T01:04:28.326446Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.22143","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3836e3f09121f0d3141fbd0809b041af2b17721f23d3b77f04fb24df43cf634e","sha256:ff88d141530c2fceabf7caf03f2f7886fd24fa50fdd804bc1adc771116d34ccc"],"state_sha256":"e12fba031f53c4a0cea79501fee57006f29f645b7bfa602a7c2149b803ef098f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"idm3+c3L+jBVCW/7YmbB/fT0CPvYR+C+4ZJWt679mOsxrfHqAHOJIjzZYdZ1Rp6sJx7FTD0xD3HaLDihfVhDBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T16:28:21.995077Z","bundle_sha256":"096c0745987d361a5b043ac63b1a02eb5ad4576a53ef015d77627ea026e617fa"}}