{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:DRPS3UVZP2XLB7SSNEMOCS6MLO","short_pith_number":"pith:DRPS3UVZ","canonical_record":{"source":{"id":"astro-ph/0612642","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-12-21T14:07:16Z","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"title_canon_sha256":"cac171e2ecedc2b58663efe483dd1023626b288118b634464db6459b3baa6fc0","abstract_canon_sha256":"a727c403927aa810b62481a97a70c7cfa717d82ecd7cb1d0f486858ef72704dd"},"schema_version":"1.0"},"canonical_sha256":"1c5f2dd2b97eaeb0fe526918e14bcc5b8969a03956810c9c98ac15202bd438b0","source":{"kind":"arxiv","id":"astro-ph/0612642","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0612642","created_at":"2026-07-04T15:24:59Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0612642v3","created_at":"2026-07-04T15:24:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0612642","created_at":"2026-07-04T15:24:59Z"},{"alias_kind":"pith_short_12","alias_value":"DRPS3UVZP2XL","created_at":"2026-07-04T15:24:59Z"},{"alias_kind":"pith_short_16","alias_value":"DRPS3UVZP2XLB7SS","created_at":"2026-07-04T15:24:59Z"},{"alias_kind":"pith_short_8","alias_value":"DRPS3UVZ","created_at":"2026-07-04T15:24:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:DRPS3UVZP2XLB7SSNEMOCS6MLO","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0612642","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-12-21T14:07:16Z","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"title_canon_sha256":"cac171e2ecedc2b58663efe483dd1023626b288118b634464db6459b3baa6fc0","abstract_canon_sha256":"a727c403927aa810b62481a97a70c7cfa717d82ecd7cb1d0f486858ef72704dd"},"schema_version":"1.0"},"canonical_sha256":"1c5f2dd2b97eaeb0fe526918e14bcc5b8969a03956810c9c98ac15202bd438b0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:24:59.494161Z","signature_b64":"QPwJolCs9rU+c/rLTVeJ8dgSiMR0DyXDCq2xdY8zTYXVbLgQx1z1kx0a9VSDgv+P2U+5ouPfINJg/VeCfgCIAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1c5f2dd2b97eaeb0fe526918e14bcc5b8969a03956810c9c98ac15202bd438b0","last_reissued_at":"2026-07-04T15:24:59.493759Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:24:59.493759Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0612642","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T15:24:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UsVcrlYoXoXZTEcordcgn11l8Nj9O9dZ4PpS3NVE/WowuQe+s0YrBC8nnSkJJmmAVr/D/31Dw3auGtpDewxGBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T13:06:00.084178Z"},"content_sha256":"d4c938f2b0b7c5863220f7ed350c6faf3be0247aa9989400f2c3ea358b02660e","schema_version":"1.0","event_id":"sha256:d4c938f2b0b7c5863220f7ed350c6faf3be0247aa9989400f2c3ea358b02660e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:DRPS3UVZP2XLB7SSNEMOCS6MLO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Reconstructing generalized ghost condensate model with dynamical dark energy parametrizations and observational datasets","license":"","headline":"","cross_cats":["gr-qc","hep-ph","hep-th"],"primary_cat":"astro-ph","authors_text":"Hongya Liu, Jingfei Zhang, Xin Zhang","submitted_at":"2006-12-21T14:07:16Z","abstract_excerpt":"Observations of high-redshift supernovae indicate that the universe is accelerating at the present stage, and we refer to the cause for this cosmic acceleration as ``dark energy''. In particular, the analysis of current data of type Ia supernovae (SNIa), cosmic large-scale structure (LSS), and the cosmic microwave background (CMB) anisotropy implies that, with some possibility, the equation-of-state parameter of dark energy may cross the cosmological-constant boundary ($w=-1$) during the recent evolution stage. The model of ``quintom'' has been proposed to describe this $w=-1$ crossing behavio"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0612642","kind":"arxiv","version":3},"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/0612642/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":"2026-07-04T15:24:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s34yOz+NWnsdvt+llXzWmWVjJBlfKwjWnaszmLdaRXn/Bfpjpxl7bnFS8V1YSgnyabkoxpIgP/jm9dyB8hDuAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T13:06:00.084831Z"},"content_sha256":"209c6ce754d2ac29fc2a3240823db2751a5ebc76f23eee3a5ea8e9fd557216e5","schema_version":"1.0","event_id":"sha256:209c6ce754d2ac29fc2a3240823db2751a5ebc76f23eee3a5ea8e9fd557216e5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DRPS3UVZP2XLB7SSNEMOCS6MLO/bundle.json","state_url":"https://pith.science/pith/DRPS3UVZP2XLB7SSNEMOCS6MLO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DRPS3UVZP2XLB7SSNEMOCS6MLO/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":"2026-08-16T13:06:00Z","links":{"resolver":"https://pith.science/pith/DRPS3UVZP2XLB7SSNEMOCS6MLO","bundle":"https://pith.science/pith/DRPS3UVZP2XLB7SSNEMOCS6MLO/bundle.json","state":"https://pith.science/pith/DRPS3UVZP2XLB7SSNEMOCS6MLO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DRPS3UVZP2XLB7SSNEMOCS6MLO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:DRPS3UVZP2XLB7SSNEMOCS6MLO","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":"a727c403927aa810b62481a97a70c7cfa717d82ecd7cb1d0f486858ef72704dd","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"license":"","primary_cat":"astro-ph","submitted_at":"2006-12-21T14:07:16Z","title_canon_sha256":"cac171e2ecedc2b58663efe483dd1023626b288118b634464db6459b3baa6fc0"},"schema_version":"1.0","source":{"id":"astro-ph/0612642","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0612642","created_at":"2026-07-04T15:24:59Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0612642v3","created_at":"2026-07-04T15:24:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0612642","created_at":"2026-07-04T15:24:59Z"},{"alias_kind":"pith_short_12","alias_value":"DRPS3UVZP2XL","created_at":"2026-07-04T15:24:59Z"},{"alias_kind":"pith_short_16","alias_value":"DRPS3UVZP2XLB7SS","created_at":"2026-07-04T15:24:59Z"},{"alias_kind":"pith_short_8","alias_value":"DRPS3UVZ","created_at":"2026-07-04T15:24:59Z"}],"graph_snapshots":[{"event_id":"sha256:209c6ce754d2ac29fc2a3240823db2751a5ebc76f23eee3a5ea8e9fd557216e5","target":"graph","created_at":"2026-07-04T15:24:59Z","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/0612642/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Observations of high-redshift supernovae indicate that the universe is accelerating at the present stage, and we refer to the cause for this cosmic acceleration as ``dark energy''. In particular, the analysis of current data of type Ia supernovae (SNIa), cosmic large-scale structure (LSS), and the cosmic microwave background (CMB) anisotropy implies that, with some possibility, the equation-of-state parameter of dark energy may cross the cosmological-constant boundary ($w=-1$) during the recent evolution stage. The model of ``quintom'' has been proposed to describe this $w=-1$ crossing behavio","authors_text":"Hongya Liu, Jingfei Zhang, Xin Zhang","cross_cats":["gr-qc","hep-ph","hep-th"],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-12-21T14:07:16Z","title":"Reconstructing generalized ghost condensate model with dynamical dark energy parametrizations and observational datasets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0612642","kind":"arxiv","version":3},"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:d4c938f2b0b7c5863220f7ed350c6faf3be0247aa9989400f2c3ea358b02660e","target":"record","created_at":"2026-07-04T15:24:59Z","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":"a727c403927aa810b62481a97a70c7cfa717d82ecd7cb1d0f486858ef72704dd","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"license":"","primary_cat":"astro-ph","submitted_at":"2006-12-21T14:07:16Z","title_canon_sha256":"cac171e2ecedc2b58663efe483dd1023626b288118b634464db6459b3baa6fc0"},"schema_version":"1.0","source":{"id":"astro-ph/0612642","kind":"arxiv","version":3}},"canonical_sha256":"1c5f2dd2b97eaeb0fe526918e14bcc5b8969a03956810c9c98ac15202bd438b0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1c5f2dd2b97eaeb0fe526918e14bcc5b8969a03956810c9c98ac15202bd438b0","first_computed_at":"2026-07-04T15:24:59.493759Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:24:59.493759Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QPwJolCs9rU+c/rLTVeJ8dgSiMR0DyXDCq2xdY8zTYXVbLgQx1z1kx0a9VSDgv+P2U+5ouPfINJg/VeCfgCIAw==","signature_status":"signed_v1","signed_at":"2026-07-04T15:24:59.494161Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0612642","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d4c938f2b0b7c5863220f7ed350c6faf3be0247aa9989400f2c3ea358b02660e","sha256:209c6ce754d2ac29fc2a3240823db2751a5ebc76f23eee3a5ea8e9fd557216e5"],"state_sha256":"71d400b60e5e072b36e880510f93e5d321cc4d0c5b37b61c5b4466d6ea77c8be"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Spg6W0i+353p+coh1jITDYdPxH/x9HiGrGUZCDmF3OSRkRg/Z/k25XY8KTJ67CTuMpaBo1DFBnALnAlctMHcCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T13:06:00.091717Z","bundle_sha256":"60dbce48e0d1cacc860d6a260b1ee820d9bc4f9fa22d347849326508427f9fb3"}}