{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:4MV5FLJVUDVD6KAVJAGUKADFEB","short_pith_number":"pith:4MV5FLJV","canonical_record":{"source":{"id":"0912.0923","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-12-04T19:47:21Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"f25487d3f82b219c184e8531eddccf3e082fae84905132d49459c2424309dcf6","abstract_canon_sha256":"4d9578eafbb7ad9684b680e67b6b2192cc36e5342ab447bbc7e7761b81c7fe22"},"schema_version":"1.0"},"canonical_sha256":"e32bd2ad35a0ea3f2815480d4500652045ebc0e5cf7603bae5c0e9227891ea2c","source":{"kind":"arxiv","id":"0912.0923","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0912.0923","created_at":"2026-05-18T02:24:45Z"},{"alias_kind":"arxiv_version","alias_value":"0912.0923v2","created_at":"2026-05-18T02:24:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.0923","created_at":"2026-05-18T02:24:45Z"},{"alias_kind":"pith_short_12","alias_value":"4MV5FLJVUDVD","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"4MV5FLJVUDVD6KAV","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"4MV5FLJV","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:4MV5FLJVUDVD6KAVJAGUKADFEB","target":"record","payload":{"canonical_record":{"source":{"id":"0912.0923","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-12-04T19:47:21Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"f25487d3f82b219c184e8531eddccf3e082fae84905132d49459c2424309dcf6","abstract_canon_sha256":"4d9578eafbb7ad9684b680e67b6b2192cc36e5342ab447bbc7e7761b81c7fe22"},"schema_version":"1.0"},"canonical_sha256":"e32bd2ad35a0ea3f2815480d4500652045ebc0e5cf7603bae5c0e9227891ea2c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:24:45.887103Z","signature_b64":"o1t+WautDuBYGWv8xZkNH0c8Z7JaOH9jiMUBF4aVlkKgqH6vazURQBfsygfV7NjOaHVtYZ3wkVaLoCo3Hy61Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e32bd2ad35a0ea3f2815480d4500652045ebc0e5cf7603bae5c0e9227891ea2c","last_reissued_at":"2026-05-18T02:24:45.886650Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:24:45.886650Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0912.0923","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":"2026-05-18T02:24:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"C1JYu0QgZCxEB0vhWW1AwmlSso65N8M9k5iHQUPWwxJPZ0W2SzsmxVpEOaSaFrIeUYZ4UfXj81BNpCUApaz5Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T04:14:21.531582Z"},"content_sha256":"5a51aa82763e7e91ad2792236769cbe2635444d47dabfd0bc495d021800d9d16","schema_version":"1.0","event_id":"sha256:5a51aa82763e7e91ad2792236769cbe2635444d47dabfd0bc495d021800d9d16"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:4MV5FLJVUDVD6KAVJAGUKADFEB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Observational constraints on holographic dark energy with varying gravitational constant","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-th"],"primary_cat":"astro-ph.CO","authors_text":"Emmanuel N. Saridakis, Jianbo Lu, Lixin Xu, M. R. Setare","submitted_at":"2009-12-04T19:47:21Z","abstract_excerpt":"We use observational data from  Type Ia Supernovae (SN), Baryon Acoustic Oscillations (BAO), Cosmic Microwave Background (CMB) and observational Hubble data (OHD), and the Markov Chain Monte Carlo (MCMC) method, to constrain the cosmological scenario of holographic dark energy with varying gravitational constant. We consider both flat and non-flat background geometry, and we present the corresponding constraints and contour-plots of the model parameters. We conclude that the scenario is compatible with observations. In 1$\\sigma$ we find $\\Omega_{\\Lambda0}=0.72^{+0.03}_{-0.03}$, $\\Omega_{k0}=-0"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.0923","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":"2026-05-18T02:24:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rEpi5/ZkJuDTAzzx4L7+CCNqNRwP8EKRUAZw5cZycDN2KaHimx/El28risMWTLR3YPUaoUByEk5lXAX/fZW4Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T04:14:21.531988Z"},"content_sha256":"cae09a0e2c93e585d69a4e8787cb05c454c4dd457dd0085d3ec875225a6802c7","schema_version":"1.0","event_id":"sha256:cae09a0e2c93e585d69a4e8787cb05c454c4dd457dd0085d3ec875225a6802c7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4MV5FLJVUDVD6KAVJAGUKADFEB/bundle.json","state_url":"https://pith.science/pith/4MV5FLJVUDVD6KAVJAGUKADFEB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4MV5FLJVUDVD6KAVJAGUKADFEB/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":"2026-05-25T04:14:21Z","links":{"resolver":"https://pith.science/pith/4MV5FLJVUDVD6KAVJAGUKADFEB","bundle":"https://pith.science/pith/4MV5FLJVUDVD6KAVJAGUKADFEB/bundle.json","state":"https://pith.science/pith/4MV5FLJVUDVD6KAVJAGUKADFEB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4MV5FLJVUDVD6KAVJAGUKADFEB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:4MV5FLJVUDVD6KAVJAGUKADFEB","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":"4d9578eafbb7ad9684b680e67b6b2192cc36e5342ab447bbc7e7761b81c7fe22","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-12-04T19:47:21Z","title_canon_sha256":"f25487d3f82b219c184e8531eddccf3e082fae84905132d49459c2424309dcf6"},"schema_version":"1.0","source":{"id":"0912.0923","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0912.0923","created_at":"2026-05-18T02:24:45Z"},{"alias_kind":"arxiv_version","alias_value":"0912.0923v2","created_at":"2026-05-18T02:24:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.0923","created_at":"2026-05-18T02:24:45Z"},{"alias_kind":"pith_short_12","alias_value":"4MV5FLJVUDVD","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"4MV5FLJVUDVD6KAV","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"4MV5FLJV","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:cae09a0e2c93e585d69a4e8787cb05c454c4dd457dd0085d3ec875225a6802c7","target":"graph","created_at":"2026-05-18T02:24:45Z","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"},"paper":{"abstract_excerpt":"We use observational data from  Type Ia Supernovae (SN), Baryon Acoustic Oscillations (BAO), Cosmic Microwave Background (CMB) and observational Hubble data (OHD), and the Markov Chain Monte Carlo (MCMC) method, to constrain the cosmological scenario of holographic dark energy with varying gravitational constant. We consider both flat and non-flat background geometry, and we present the corresponding constraints and contour-plots of the model parameters. We conclude that the scenario is compatible with observations. In 1$\\sigma$ we find $\\Omega_{\\Lambda0}=0.72^{+0.03}_{-0.03}$, $\\Omega_{k0}=-0","authors_text":"Emmanuel N. Saridakis, Jianbo Lu, Lixin Xu, M. R. Setare","cross_cats":["gr-qc","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-12-04T19:47:21Z","title":"Observational constraints on holographic dark energy with varying gravitational constant"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.0923","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":"sha256:5a51aa82763e7e91ad2792236769cbe2635444d47dabfd0bc495d021800d9d16","target":"record","created_at":"2026-05-18T02:24:45Z","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":"4d9578eafbb7ad9684b680e67b6b2192cc36e5342ab447bbc7e7761b81c7fe22","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-12-04T19:47:21Z","title_canon_sha256":"f25487d3f82b219c184e8531eddccf3e082fae84905132d49459c2424309dcf6"},"schema_version":"1.0","source":{"id":"0912.0923","kind":"arxiv","version":2}},"canonical_sha256":"e32bd2ad35a0ea3f2815480d4500652045ebc0e5cf7603bae5c0e9227891ea2c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e32bd2ad35a0ea3f2815480d4500652045ebc0e5cf7603bae5c0e9227891ea2c","first_computed_at":"2026-05-18T02:24:45.886650Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:24:45.886650Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"o1t+WautDuBYGWv8xZkNH0c8Z7JaOH9jiMUBF4aVlkKgqH6vazURQBfsygfV7NjOaHVtYZ3wkVaLoCo3Hy61Dw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:24:45.887103Z","signed_message":"canonical_sha256_bytes"},"source_id":"0912.0923","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5a51aa82763e7e91ad2792236769cbe2635444d47dabfd0bc495d021800d9d16","sha256:cae09a0e2c93e585d69a4e8787cb05c454c4dd457dd0085d3ec875225a6802c7"],"state_sha256":"a9bab179789639e3e901997b3157add1a6af8224fa39298e718572727a0d6399"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iuyIHyulV671QU0gw0X31fbl0QlSY/4DcXlxNqlotsOm9RTtVt/tgAy/zGPPtSKMzxAMUynIMmY+DzRVGb2YBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T04:14:21.535084Z","bundle_sha256":"5d633b8b2df77624b674a586f1a32c0aaabdf41405e3c5f80ffb1aa9a877f242"}}