{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:LGIL7BMVMPTXUM4LGQZHIX7QIM","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":"b183bcedb1077223f2264235b29b73598a8353f9db62ba3d2e9e0519c29ed0dd","cross_cats_sorted":["astro-ph"],"license":"","primary_cat":"hep-ph","submitted_at":"2005-09-23T12:15:52Z","title_canon_sha256":"3ae6f0042a9965f712c13822cf95d12d077a1f12191c346036c254de2fd90f95"},"schema_version":"1.0","source":{"id":"hep-ph/0509257","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0509257","created_at":"2026-07-04T15:26:01Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0509257v1","created_at":"2026-07-04T15:26:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0509257","created_at":"2026-07-04T15:26:01Z"},{"alias_kind":"pith_short_12","alias_value":"LGIL7BMVMPTX","created_at":"2026-07-04T15:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"LGIL7BMVMPTXUM4L","created_at":"2026-07-04T15:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"LGIL7BMV","created_at":"2026-07-04T15:26:01Z"}],"graph_snapshots":[{"event_id":"sha256:ffcbdc81348ecdf400c72560715e9e396b087c1361d0a213e4a61724713a6ee2","target":"graph","created_at":"2026-07-04T15:26:01Z","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/hep-ph/0509257/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Dark Matter (DM) and Dark Energy (DE) can be both described in terms of ultra-light Pseudo-Goldstone-Bosons (PGB) with masses m_{DM} ~ 10^{-23}eV and m_{DE} <= 10^{-33}eV respectively. Following Barbieri et al, we entertain the possibility that a PGB exists with mass m_I intermediate between these two limits, giving a partial contribution to DM. We evaluate the related effects on the power spectrum of the matter density perturbations and on the cosmic microwave background and we derive the bounds on the density fraction, f_I, of this intermediate field from current data, with room for a better","authors_text":"CERN), Luca Amendola (INAF/OAR), Riccardo Barbieri (INFN, SNS Pisa","cross_cats":["astro-ph"],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2005-09-23T12:15:52Z","title":"Dark Matter from an ultra-light pseudo-Goldsone-boson"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0509257","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:a89dc0d7cf729439da0aec675ed785b2f0970dc44f2a6064fc477eee88b0ab81","target":"record","created_at":"2026-07-04T15:26:01Z","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":"b183bcedb1077223f2264235b29b73598a8353f9db62ba3d2e9e0519c29ed0dd","cross_cats_sorted":["astro-ph"],"license":"","primary_cat":"hep-ph","submitted_at":"2005-09-23T12:15:52Z","title_canon_sha256":"3ae6f0042a9965f712c13822cf95d12d077a1f12191c346036c254de2fd90f95"},"schema_version":"1.0","source":{"id":"hep-ph/0509257","kind":"arxiv","version":1}},"canonical_sha256":"5990bf859563e77a338b3432745ff04301479515fb2f959980573814027f2cfa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5990bf859563e77a338b3432745ff04301479515fb2f959980573814027f2cfa","first_computed_at":"2026-07-04T15:26:01.775818Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:26:01.775818Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MqWJFyQb92HnQLbxpxkT8LgQoM/kzVjMdW8OLGLbbBHfGu0lOX3SoAP/Ev5PY3s6ETNwk3S4U3ejuybn1bcXDQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:26:01.776275Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/0509257","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a89dc0d7cf729439da0aec675ed785b2f0970dc44f2a6064fc477eee88b0ab81","sha256:ffcbdc81348ecdf400c72560715e9e396b087c1361d0a213e4a61724713a6ee2"],"state_sha256":"885a8d2082e33591f017229c4066d6cd31b2c1d2c4d1368f69ec9efff3d90c88"}