{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:JIGMH5WKONIQUPUOG54S4QFMMY","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":"1e348d1ba7a8da5ef2b2789dd1fc14617adebf7ec1763da079187fdc6968a1af","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-03-28T01:28:10Z","title_canon_sha256":"cac575ddd805ce65dbc5d46af85031d1a2330f778d0b28cc43efbd1a6a9e38f8"},"schema_version":"1.0","source":{"id":"astro-ph/0703707","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0703707","created_at":"2026-05-18T01:40:26Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0703707v1","created_at":"2026-05-18T01:40:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0703707","created_at":"2026-05-18T01:40:26Z"},{"alias_kind":"pith_short_12","alias_value":"JIGMH5WKONIQ","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"JIGMH5WKONIQUPUO","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"JIGMH5WK","created_at":"2026-05-18T12:25:55Z"}],"graph_snapshots":[{"event_id":"sha256:e19997831c97fefb8b6dedd644a444ee10f15fb652c1e92b3a8ff85d412138f5","target":"graph","created_at":"2026-05-18T01:40:26Z","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":"The TRACER instrument Transition Radiation Array for Cosmic Energetic Radiation is designed to measure the individual energy spectra of cosmic-ray nuclei in long-duration balloon flights The large geometric factor of TRACER 5 m 2 sr permits statistically significant measurements at particle energies well beyond 10 14 eV TRACER identifies individual cosmic-ray nuclei with single-element resolution and measures their energy over a very wide range from about 0 5 to 10 000 GeV nucleon This is accomplished with a gas detector system of 1600 single-wire proportional tubes and plastic fiber radiators","authors_text":"A. Romero-Wolf, C. Hoeppner, D. Mueller, F. Gahbauer, J. Hoerandel, M. Ave, M. Ichimura, P.J. Boyle","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-03-28T01:28:10Z","title":"Cosmic ray composition at high energies: Results from the TRACER project"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0703707","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:fa3fafc8c541ce86af591409f33bd3be1c3ef78d3b3c089b45ae30b819939099","target":"record","created_at":"2026-05-18T01:40:26Z","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":"1e348d1ba7a8da5ef2b2789dd1fc14617adebf7ec1763da079187fdc6968a1af","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-03-28T01:28:10Z","title_canon_sha256":"cac575ddd805ce65dbc5d46af85031d1a2330f778d0b28cc43efbd1a6a9e38f8"},"schema_version":"1.0","source":{"id":"astro-ph/0703707","kind":"arxiv","version":1}},"canonical_sha256":"4a0cc3f6ca73510a3e8e37792e40ac663da6d5cbe3ed345bb91d0c878d5b372a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4a0cc3f6ca73510a3e8e37792e40ac663da6d5cbe3ed345bb91d0c878d5b372a","first_computed_at":"2026-05-18T01:40:26.799257Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:26.799257Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"v+tKwqgQme8ehby3G4NhU5nAa95nfg47uQhkzwKmU+btzINEdyTsYCKxcoR1JgbDvtkY3M6CUM+aXuDLeU6FBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:26.799783Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0703707","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fa3fafc8c541ce86af591409f33bd3be1c3ef78d3b3c089b45ae30b819939099","sha256:e19997831c97fefb8b6dedd644a444ee10f15fb652c1e92b3a8ff85d412138f5"],"state_sha256":"711c4ef268af53a5971004a6cd0e7922721dbb75f8fdde2745f2b664a759d90b"}