{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1997:F75RY6EIB7VC7NP3PF5N6MFPVX","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":"7780e828a021fb43033f8e7b80e74a76a5279835286bf9d58c9b5f06f951b985","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"1997-05-15T16:47:17Z","title_canon_sha256":"912bf0afb263a490945818a97411751908ca3e0347a0c59efa5c63f8abd18a97"},"schema_version":"1.0","source":{"id":"astro-ph/9705110","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9705110","created_at":"2026-05-18T04:34:29Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9705110v1","created_at":"2026-05-18T04:34:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9705110","created_at":"2026-05-18T04:34:29Z"},{"alias_kind":"pith_short_12","alias_value":"F75RY6EIB7VC","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"F75RY6EIB7VC7NP3","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"F75RY6EI","created_at":"2026-05-18T12:25:48Z"}],"graph_snapshots":[{"event_id":"sha256:6695ea7b6308af564ae9de00688c45079c58add457035b7cc24dd023a087d1c0","target":"graph","created_at":"2026-05-18T04:34:29Z","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 discovery of a single anti-helium nucleus in the cosmic ray flux would definitely point toward the existence of stars and even of entire galaxies made of anti-matter. The presence of anti-nuclei in cosmic rays has actually profound implications on the fundamental question of the baryon asymmetry of the universe. It is therefore crucial to determine the amount of anti-matter which our own galaxy already produces through the spallation of high-energy protons on the interstellar gas of the galactic disk. We have used here a coalescence model to assess the amount of anti-deuterium and anti-hel","authors_text":"Jean Orloff, Pascal Chardonnet, Pierre Salati","cross_cats":["hep-ph"],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1997-05-15T16:47:17Z","title":"The Production of Anti-Matter in our Galaxy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9705110","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":"sha256:76ad448459fe98fff7063b286a2a731c27ea566937b77bcd1de1579fa607f421","target":"record","created_at":"2026-05-18T04:34:29Z","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":"7780e828a021fb43033f8e7b80e74a76a5279835286bf9d58c9b5f06f951b985","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"1997-05-15T16:47:17Z","title_canon_sha256":"912bf0afb263a490945818a97411751908ca3e0347a0c59efa5c63f8abd18a97"},"schema_version":"1.0","source":{"id":"astro-ph/9705110","kind":"arxiv","version":1}},"canonical_sha256":"2ffb1c78880fea2fb5fb797adf30afadf100bb4fe5989594d804828248199bcd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2ffb1c78880fea2fb5fb797adf30afadf100bb4fe5989594d804828248199bcd","first_computed_at":"2026-05-18T04:34:29.128081Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:34:29.128081Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BG4jvVLwoiUc/E9cFI53X/emWbQ8yrF1qMyv918LfjMAJkq7/EH+8QN7cBOClGZtSLqR+wq56GJ1OrkwMrTfAg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:34:29.128630Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9705110","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:76ad448459fe98fff7063b286a2a731c27ea566937b77bcd1de1579fa607f421","sha256:6695ea7b6308af564ae9de00688c45079c58add457035b7cc24dd023a087d1c0"],"state_sha256":"bfd00f7e82bb5c0791abb2a3fde8dff60743dcfffffd3d6bd942130285e90065"}