{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2004:T7X4FWXKXIJWDUGTKEWFSUWGH4","short_pith_number":"pith:T7X4FWXK","canonical_record":{"source":{"id":"astro-ph/0403590","kind":"arxiv","version":4},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2004-03-25T08:49:12Z","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"title_canon_sha256":"397aea9aa2c5b55003136c56bba0e78219224e9589c2ab5ef7d44171392fa2b9","abstract_canon_sha256":"ca51c54a6981b873592b3280d986d06990fbcf55b6a95f8414782a07d5ed1231"},"schema_version":"1.0"},"canonical_sha256":"9fefc2daeaba1361d0d3512c5952c63f38bf80aad00c7706982becd39ee71c30","source":{"kind":"arxiv","id":"astro-ph/0403590","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0403590","created_at":"2026-07-04T16:43:28Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0403590v4","created_at":"2026-07-04T16:43:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0403590","created_at":"2026-07-04T16:43:28Z"},{"alias_kind":"pith_short_12","alias_value":"T7X4FWXKXIJW","created_at":"2026-07-04T16:43:28Z"},{"alias_kind":"pith_short_16","alias_value":"T7X4FWXKXIJWDUGT","created_at":"2026-07-04T16:43:28Z"},{"alias_kind":"pith_short_8","alias_value":"T7X4FWXK","created_at":"2026-07-04T16:43:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2004:T7X4FWXKXIJWDUGTKEWFSUWGH4","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0403590","kind":"arxiv","version":4},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2004-03-25T08:49:12Z","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"title_canon_sha256":"397aea9aa2c5b55003136c56bba0e78219224e9589c2ab5ef7d44171392fa2b9","abstract_canon_sha256":"ca51c54a6981b873592b3280d986d06990fbcf55b6a95f8414782a07d5ed1231"},"schema_version":"1.0"},"canonical_sha256":"9fefc2daeaba1361d0d3512c5952c63f38bf80aad00c7706982becd39ee71c30","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:43:28.032557Z","signature_b64":"rh8imt2sy6HPBFGkOzF/C5dtzrbJ8Y3/00CaPGESJ6fqyGB1Fc/omTFmYu0PIDBtgsqh4TjRU5PU/SASW6cVDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9fefc2daeaba1361d0d3512c5952c63f38bf80aad00c7706982becd39ee71c30","last_reissued_at":"2026-07-04T16:43:28.032135Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:43:28.032135Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0403590","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T16:43:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"igt8QSPm+kwR2wFnv21RGDPhJGGg3v2A/VwCYa0UYtFURPhiDrcKDWObCrtmFHTI9Ne3ZRJ3uIdw1ixvTRg5Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T20:59:17.067023Z"},"content_sha256":"acbf4f9b6b878f63fb697b3976474557eacc507fed6f512657ec773f8e5faef5","schema_version":"1.0","event_id":"sha256:acbf4f9b6b878f63fb697b3976474557eacc507fed6f512657ec773f8e5faef5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2004:T7X4FWXKXIJWDUGTKEWFSUWGH4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Supernova Constraints on a holographic dark energy model","license":"","headline":"","cross_cats":["gr-qc","hep-ph","hep-th"],"primary_cat":"astro-ph","authors_text":"Qing-Guo Huang, Yungui Gong","submitted_at":"2004-03-25T08:49:12Z","abstract_excerpt":"In this paper, we use the type Ia supernova data to constrain the model of holographic dark energy. For $d=1$, the best fit result is $\\Omega^0_m = 0.25$, the equation of the state of the holographic dark energy $w^0_\\d = -0.91$ and the transition between the decelerating expansion and the accelerating expansion happened when the cosmological red-shift was $z_T=0.72$. If we set $d$ as a free parameter, the best fit results are $d=0.21$, $\\Omega_m^0=0.46$, $w_\\d^0=-2.67$, which sounds like a phantom today, and the transition redshift is $z_T=0.28$."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0403590","kind":"arxiv","version":4},"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/astro-ph/0403590/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":"2026-07-04T16:43:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9mlbInVY7dyqxsLl6ug1b/BSfEEe3UNVezUOwgKVLBb3M4qHisVUQ7q6qlgRHuWQqpIH8Ym5Ts8NM0sgXLziBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T20:59:17.067614Z"},"content_sha256":"c9c421c08d3a5f60eed143561cea9da310f4fcea73d7a0e3e9dae786693f44ad","schema_version":"1.0","event_id":"sha256:c9c421c08d3a5f60eed143561cea9da310f4fcea73d7a0e3e9dae786693f44ad"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/T7X4FWXKXIJWDUGTKEWFSUWGH4/bundle.json","state_url":"https://pith.science/pith/T7X4FWXKXIJWDUGTKEWFSUWGH4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/T7X4FWXKXIJWDUGTKEWFSUWGH4/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":"2026-08-06T20:59:17Z","links":{"resolver":"https://pith.science/pith/T7X4FWXKXIJWDUGTKEWFSUWGH4","bundle":"https://pith.science/pith/T7X4FWXKXIJWDUGTKEWFSUWGH4/bundle.json","state":"https://pith.science/pith/T7X4FWXKXIJWDUGTKEWFSUWGH4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/T7X4FWXKXIJWDUGTKEWFSUWGH4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:T7X4FWXKXIJWDUGTKEWFSUWGH4","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":"ca51c54a6981b873592b3280d986d06990fbcf55b6a95f8414782a07d5ed1231","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"license":"","primary_cat":"astro-ph","submitted_at":"2004-03-25T08:49:12Z","title_canon_sha256":"397aea9aa2c5b55003136c56bba0e78219224e9589c2ab5ef7d44171392fa2b9"},"schema_version":"1.0","source":{"id":"astro-ph/0403590","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0403590","created_at":"2026-07-04T16:43:28Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0403590v4","created_at":"2026-07-04T16:43:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0403590","created_at":"2026-07-04T16:43:28Z"},{"alias_kind":"pith_short_12","alias_value":"T7X4FWXKXIJW","created_at":"2026-07-04T16:43:28Z"},{"alias_kind":"pith_short_16","alias_value":"T7X4FWXKXIJWDUGT","created_at":"2026-07-04T16:43:28Z"},{"alias_kind":"pith_short_8","alias_value":"T7X4FWXK","created_at":"2026-07-04T16:43:28Z"}],"graph_snapshots":[{"event_id":"sha256:c9c421c08d3a5f60eed143561cea9da310f4fcea73d7a0e3e9dae786693f44ad","target":"graph","created_at":"2026-07-04T16:43:28Z","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/astro-ph/0403590/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this paper, we use the type Ia supernova data to constrain the model of holographic dark energy. For $d=1$, the best fit result is $\\Omega^0_m = 0.25$, the equation of the state of the holographic dark energy $w^0_\\d = -0.91$ and the transition between the decelerating expansion and the accelerating expansion happened when the cosmological red-shift was $z_T=0.72$. If we set $d$ as a free parameter, the best fit results are $d=0.21$, $\\Omega_m^0=0.46$, $w_\\d^0=-2.67$, which sounds like a phantom today, and the transition redshift is $z_T=0.28$.","authors_text":"Qing-Guo Huang, Yungui Gong","cross_cats":["gr-qc","hep-ph","hep-th"],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2004-03-25T08:49:12Z","title":"Supernova Constraints on a holographic dark energy model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0403590","kind":"arxiv","version":4},"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:acbf4f9b6b878f63fb697b3976474557eacc507fed6f512657ec773f8e5faef5","target":"record","created_at":"2026-07-04T16:43:28Z","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":"ca51c54a6981b873592b3280d986d06990fbcf55b6a95f8414782a07d5ed1231","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"license":"","primary_cat":"astro-ph","submitted_at":"2004-03-25T08:49:12Z","title_canon_sha256":"397aea9aa2c5b55003136c56bba0e78219224e9589c2ab5ef7d44171392fa2b9"},"schema_version":"1.0","source":{"id":"astro-ph/0403590","kind":"arxiv","version":4}},"canonical_sha256":"9fefc2daeaba1361d0d3512c5952c63f38bf80aad00c7706982becd39ee71c30","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9fefc2daeaba1361d0d3512c5952c63f38bf80aad00c7706982becd39ee71c30","first_computed_at":"2026-07-04T16:43:28.032135Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:43:28.032135Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rh8imt2sy6HPBFGkOzF/C5dtzrbJ8Y3/00CaPGESJ6fqyGB1Fc/omTFmYu0PIDBtgsqh4TjRU5PU/SASW6cVDg==","signature_status":"signed_v1","signed_at":"2026-07-04T16:43:28.032557Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0403590","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:acbf4f9b6b878f63fb697b3976474557eacc507fed6f512657ec773f8e5faef5","sha256:c9c421c08d3a5f60eed143561cea9da310f4fcea73d7a0e3e9dae786693f44ad"],"state_sha256":"8d76330a62d62926bfa27f38ad738b95bf27202be76feef998e82ee7b26b42dd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lK7MhaBc98yqkf+Y3d3b/B7M88nBo+DBqTfxrAw/8Vk3+JvP+cKGfbA8BRg19cXVSxi3XY+35XgVmdsucZAQAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T20:59:17.071866Z","bundle_sha256":"94a74600f94d3dab610c5d9a3406500bbc3e8a3ab4e45384a4e4586ff9f8cc1d"}}