{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:7H3IBN3W6SJPZ4XI5JJDAPQSHE","short_pith_number":"pith:7H3IBN3W","canonical_record":{"source":{"id":"2401.06708","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2024-01-12T17:18:01Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"d11883972540b30f5e3190c5003b7437c85238ac9dab508e5e5dbeb6fb2648c6","abstract_canon_sha256":"d27a69a50b8a0e9e1013a621d23fe7074ab9dadbb2979dd0d6572efd7a5fd4af"},"schema_version":"1.0"},"canonical_sha256":"f9f680b776f492fcf2e8ea52303e12392eb2ae5af058c8ed928643639e4abab7","source":{"kind":"arxiv","id":"2401.06708","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2401.06708","created_at":"2026-07-05T07:33:04Z"},{"alias_kind":"arxiv_version","alias_value":"2401.06708v1","created_at":"2026-07-05T07:33:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.06708","created_at":"2026-07-05T07:33:04Z"},{"alias_kind":"pith_short_12","alias_value":"7H3IBN3W6SJP","created_at":"2026-07-05T07:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"7H3IBN3W6SJPZ4XI","created_at":"2026-07-05T07:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"7H3IBN3W","created_at":"2026-07-05T07:33:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:7H3IBN3W6SJPZ4XI5JJDAPQSHE","target":"record","payload":{"canonical_record":{"source":{"id":"2401.06708","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2024-01-12T17:18:01Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"d11883972540b30f5e3190c5003b7437c85238ac9dab508e5e5dbeb6fb2648c6","abstract_canon_sha256":"d27a69a50b8a0e9e1013a621d23fe7074ab9dadbb2979dd0d6572efd7a5fd4af"},"schema_version":"1.0"},"canonical_sha256":"f9f680b776f492fcf2e8ea52303e12392eb2ae5af058c8ed928643639e4abab7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:33:04.366993Z","signature_b64":"ZpnNC/23fJ/i7ksHMVg8CKp1I1PYnQc0XoMJ27oIYpRQoCbIInNppkjLIM61PMpAsN0H/0Yw0L9juX36GZ7UBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f9f680b776f492fcf2e8ea52303e12392eb2ae5af058c8ed928643639e4abab7","last_reissued_at":"2026-07-05T07:33:04.366473Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:33:04.366473Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2401.06708","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T07:33:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OMhyIgEcqG3pFH4YuakmHTB31Wrx33iKu8wg7MV5fpoAkcugKmbIQ0/25IKNh5K9zY+qRuWxx6P71SkOGwtBCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T04:13:19.110853Z"},"content_sha256":"732cefc86579cd717234bae308d54cd8b0794216dac0b7b084269e50e6616d28","schema_version":"1.0","event_id":"sha256:732cefc86579cd717234bae308d54cd8b0794216dac0b7b084269e50e6616d28"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:7H3IBN3W6SJPZ4XI5JJDAPQSHE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The PANDA Barrel DIRC","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"hep-ex","authors_text":"A. Ali, A. Belias, A. Gerhardt, A. Hayrapetyan, A. Lehmann, C. Schwarz, C. Sfienti, D. Lehmann, D. Miehling, G. Schepers, I. K\\\"oseoglu, J. Schwiening, K. Gumbert, K. Peters, L. Schmitt, M. B\\\"ohm, M. D\\\"uren, M. Schmidt, M. Traxler, R. Dzhygadlo, S. Krauss, T. Wasem, Y. Wolf","submitted_at":"2024-01-12T17:18:01Z","abstract_excerpt":"The PANDA experiment at the international accelerator Facility for Antiproton and Ion Research in Europe (FAIR), Darmstadt, Germany, will address fundamental questions of hadron physics using $\\bar{p}p$ annihilations. Excellent Particle Identification (PID) over a large range of solid angles and particle momenta will be essential to meet the objectives of the rich physics program. Charged PID in the target region will be provided by a Barrel DIRC (Detection of Internally Reflected Cherenkov light) counter. The Barrel DIRC, covering the polar angle range of 22-140 degrees, will provide a $\\pi/K"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.06708","kind":"arxiv","version":1},"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/2401.06708/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":"2026-07-05T07:33:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gmgnciLm3oxuWlSpadg5DNSkFQdaH4Y2LBBmCcVqk3MkpL/CsqdzjJCYrOdjn8BwdggGGweE8wUKgDahVTeqDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T04:13:19.111774Z"},"content_sha256":"a2ab3ae71b7b8d268196f9603bc7261f57e2de1d4f3718b96d5447ae393f34da","schema_version":"1.0","event_id":"sha256:a2ab3ae71b7b8d268196f9603bc7261f57e2de1d4f3718b96d5447ae393f34da"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7H3IBN3W6SJPZ4XI5JJDAPQSHE/bundle.json","state_url":"https://pith.science/pith/7H3IBN3W6SJPZ4XI5JJDAPQSHE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7H3IBN3W6SJPZ4XI5JJDAPQSHE/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":"2026-08-10T04:13:19Z","links":{"resolver":"https://pith.science/pith/7H3IBN3W6SJPZ4XI5JJDAPQSHE","bundle":"https://pith.science/pith/7H3IBN3W6SJPZ4XI5JJDAPQSHE/bundle.json","state":"https://pith.science/pith/7H3IBN3W6SJPZ4XI5JJDAPQSHE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7H3IBN3W6SJPZ4XI5JJDAPQSHE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:7H3IBN3W6SJPZ4XI5JJDAPQSHE","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":"d27a69a50b8a0e9e1013a621d23fe7074ab9dadbb2979dd0d6572efd7a5fd4af","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2024-01-12T17:18:01Z","title_canon_sha256":"d11883972540b30f5e3190c5003b7437c85238ac9dab508e5e5dbeb6fb2648c6"},"schema_version":"1.0","source":{"id":"2401.06708","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2401.06708","created_at":"2026-07-05T07:33:04Z"},{"alias_kind":"arxiv_version","alias_value":"2401.06708v1","created_at":"2026-07-05T07:33:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.06708","created_at":"2026-07-05T07:33:04Z"},{"alias_kind":"pith_short_12","alias_value":"7H3IBN3W6SJP","created_at":"2026-07-05T07:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"7H3IBN3W6SJPZ4XI","created_at":"2026-07-05T07:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"7H3IBN3W","created_at":"2026-07-05T07:33:04Z"}],"graph_snapshots":[{"event_id":"sha256:a2ab3ae71b7b8d268196f9603bc7261f57e2de1d4f3718b96d5447ae393f34da","target":"graph","created_at":"2026-07-05T07:33:04Z","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/2401.06708/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The PANDA experiment at the international accelerator Facility for Antiproton and Ion Research in Europe (FAIR), Darmstadt, Germany, will address fundamental questions of hadron physics using $\\bar{p}p$ annihilations. Excellent Particle Identification (PID) over a large range of solid angles and particle momenta will be essential to meet the objectives of the rich physics program. Charged PID in the target region will be provided by a Barrel DIRC (Detection of Internally Reflected Cherenkov light) counter. The Barrel DIRC, covering the polar angle range of 22-140 degrees, will provide a $\\pi/K","authors_text":"A. Ali, A. Belias, A. Gerhardt, A. Hayrapetyan, A. Lehmann, C. Schwarz, C. Sfienti, D. Lehmann, D. Miehling, G. Schepers, I. K\\\"oseoglu, J. Schwiening, K. Gumbert, K. Peters, L. Schmitt, M. B\\\"ohm, M. D\\\"uren, M. Schmidt, M. Traxler, R. Dzhygadlo, S. Krauss, T. Wasem, Y. Wolf","cross_cats":["physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2024-01-12T17:18:01Z","title":"The PANDA Barrel DIRC"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.06708","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":"sha256:732cefc86579cd717234bae308d54cd8b0794216dac0b7b084269e50e6616d28","target":"record","created_at":"2026-07-05T07:33:04Z","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":"d27a69a50b8a0e9e1013a621d23fe7074ab9dadbb2979dd0d6572efd7a5fd4af","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2024-01-12T17:18:01Z","title_canon_sha256":"d11883972540b30f5e3190c5003b7437c85238ac9dab508e5e5dbeb6fb2648c6"},"schema_version":"1.0","source":{"id":"2401.06708","kind":"arxiv","version":1}},"canonical_sha256":"f9f680b776f492fcf2e8ea52303e12392eb2ae5af058c8ed928643639e4abab7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f9f680b776f492fcf2e8ea52303e12392eb2ae5af058c8ed928643639e4abab7","first_computed_at":"2026-07-05T07:33:04.366473Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:33:04.366473Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZpnNC/23fJ/i7ksHMVg8CKp1I1PYnQc0XoMJ27oIYpRQoCbIInNppkjLIM61PMpAsN0H/0Yw0L9juX36GZ7UBA==","signature_status":"signed_v1","signed_at":"2026-07-05T07:33:04.366993Z","signed_message":"canonical_sha256_bytes"},"source_id":"2401.06708","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:732cefc86579cd717234bae308d54cd8b0794216dac0b7b084269e50e6616d28","sha256:a2ab3ae71b7b8d268196f9603bc7261f57e2de1d4f3718b96d5447ae393f34da"],"state_sha256":"942326b4120c640df7af5cb8f5172c6fa87ddecfe8c70c1cc30fe855d7aab499"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EaDoNC4j8SjYeC5VHbwxOR7NP9a1vWt9kac4VStUsCJkbhU6qLaOgamG+yfDP29mC4ALbLW66RsQhvrAJVVEAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T04:13:19.117504Z","bundle_sha256":"a17d331f3f94c3f6200491abeb194f7421c34dff7e359e1756099c9930abcb51"}}