{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:WA6RXADJ56XPX66XKPH3NCDQ4I","short_pith_number":"pith:WA6RXADJ","canonical_record":{"source":{"id":"2406.12883","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2024-05-29T18:55:46Z","cross_cats_sorted":[],"title_canon_sha256":"a81a5a3597bde4494e07b38902564339c5ef7db386256020b0e16e74082eea26","abstract_canon_sha256":"b255936b0b8d13f77df77e981e4835aad2a1ec43fb0375463aebe8056aeeb316"},"schema_version":"1.0"},"canonical_sha256":"b03d1b8069efaefbfbd753cfb68870e22f8838d37ff1e90d14210a11c19e0d0e","source":{"kind":"arxiv","id":"2406.12883","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.12883","created_at":"2026-07-05T08:33:52Z"},{"alias_kind":"arxiv_version","alias_value":"2406.12883v1","created_at":"2026-07-05T08:33:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.12883","created_at":"2026-07-05T08:33:52Z"},{"alias_kind":"pith_short_12","alias_value":"WA6RXADJ56XP","created_at":"2026-07-05T08:33:52Z"},{"alias_kind":"pith_short_16","alias_value":"WA6RXADJ56XPX66X","created_at":"2026-07-05T08:33:52Z"},{"alias_kind":"pith_short_8","alias_value":"WA6RXADJ","created_at":"2026-07-05T08:33:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:WA6RXADJ56XPX66XKPH3NCDQ4I","target":"record","payload":{"canonical_record":{"source":{"id":"2406.12883","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2024-05-29T18:55:46Z","cross_cats_sorted":[],"title_canon_sha256":"a81a5a3597bde4494e07b38902564339c5ef7db386256020b0e16e74082eea26","abstract_canon_sha256":"b255936b0b8d13f77df77e981e4835aad2a1ec43fb0375463aebe8056aeeb316"},"schema_version":"1.0"},"canonical_sha256":"b03d1b8069efaefbfbd753cfb68870e22f8838d37ff1e90d14210a11c19e0d0e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:33:52.837498Z","signature_b64":"uR9dQpdWDuF+8zokJqXOrgfNn7SGyjJAugrSlJdVHxDbUfIvrKKdSZ9W95FSAiBJ0+pi0Ae4+y5Kskg8iJXuBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b03d1b8069efaefbfbd753cfb68870e22f8838d37ff1e90d14210a11c19e0d0e","last_reissued_at":"2026-07-05T08:33:52.837064Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:33:52.837064Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2406.12883","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":"2026-07-05T08:33:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RV99Xv5fQrAZNGvsgbpkTyciXPP+uPj2FtStuljjEivqClweQh9ZIDoE1MuP/qz3CEj1obde/Vpcbj8IeMIuCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T09:03:17.126237Z"},"content_sha256":"2eb994ec60e25702eaf96207aab78c7c951d2366a8b9c54dbd5d80f38dd09772","schema_version":"1.0","event_id":"sha256:2eb994ec60e25702eaf96207aab78c7c951d2366a8b9c54dbd5d80f38dd09772"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:WA6RXADJ56XPX66XKPH3NCDQ4I","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Optimization of a Welding Procedure for Making Critical Aluminum Welds on the LBNF Absorber Core Block","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"A. Deshpande, Batavia, IL, J. Zahurones (Fermi National Accelerator Laboratory, K. E. Anderson, USA), V. I. Sidorov","submitted_at":"2024-05-29T18:55:46Z","abstract_excerpt":"The LBNF Absorber consists of thirteen 6061-T6 aluminum core blocks. The core blocks are water cooled with de-ionized (DI) water which becomes radioactive during beam operations. The cooling water flows through gun-drilled channels in the core blocks. A weld quality optimization was performed to produce National Aeronautical Standard 1514 Class I quality welds on the aluminum core blocks. This was not successful in all cases. An existing Gas Tungsten Arc Welding Procedure Specification was fine tuned to minimize, in most cases, and eliminate detect-able tungsten inclusions in the welds. All th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.12883","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/2406.12883/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":"2026-07-05T08:33:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vdqrwFa/IZmyTIdLSefmpiwlRMLyBHL/KSHC/05QCxTDpYuUBkPrjdOmahQzzW/rL1ux888pxNgzfik1Xn9BBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T09:03:17.127173Z"},"content_sha256":"532e441b9cf378e2a5691ef70eab4d9dd3189431caf5eefed251cc85cf1b6b11","schema_version":"1.0","event_id":"sha256:532e441b9cf378e2a5691ef70eab4d9dd3189431caf5eefed251cc85cf1b6b11"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WA6RXADJ56XPX66XKPH3NCDQ4I/bundle.json","state_url":"https://pith.science/pith/WA6RXADJ56XPX66XKPH3NCDQ4I/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WA6RXADJ56XPX66XKPH3NCDQ4I/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":"2026-08-12T09:03:17Z","links":{"resolver":"https://pith.science/pith/WA6RXADJ56XPX66XKPH3NCDQ4I","bundle":"https://pith.science/pith/WA6RXADJ56XPX66XKPH3NCDQ4I/bundle.json","state":"https://pith.science/pith/WA6RXADJ56XPX66XKPH3NCDQ4I/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WA6RXADJ56XPX66XKPH3NCDQ4I/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:WA6RXADJ56XPX66XKPH3NCDQ4I","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":"b255936b0b8d13f77df77e981e4835aad2a1ec43fb0375463aebe8056aeeb316","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2024-05-29T18:55:46Z","title_canon_sha256":"a81a5a3597bde4494e07b38902564339c5ef7db386256020b0e16e74082eea26"},"schema_version":"1.0","source":{"id":"2406.12883","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.12883","created_at":"2026-07-05T08:33:52Z"},{"alias_kind":"arxiv_version","alias_value":"2406.12883v1","created_at":"2026-07-05T08:33:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.12883","created_at":"2026-07-05T08:33:52Z"},{"alias_kind":"pith_short_12","alias_value":"WA6RXADJ56XP","created_at":"2026-07-05T08:33:52Z"},{"alias_kind":"pith_short_16","alias_value":"WA6RXADJ56XPX66X","created_at":"2026-07-05T08:33:52Z"},{"alias_kind":"pith_short_8","alias_value":"WA6RXADJ","created_at":"2026-07-05T08:33:52Z"}],"graph_snapshots":[{"event_id":"sha256:532e441b9cf378e2a5691ef70eab4d9dd3189431caf5eefed251cc85cf1b6b11","target":"graph","created_at":"2026-07-05T08:33:52Z","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/2406.12883/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The LBNF Absorber consists of thirteen 6061-T6 aluminum core blocks. The core blocks are water cooled with de-ionized (DI) water which becomes radioactive during beam operations. The cooling water flows through gun-drilled channels in the core blocks. A weld quality optimization was performed to produce National Aeronautical Standard 1514 Class I quality welds on the aluminum core blocks. This was not successful in all cases. An existing Gas Tungsten Arc Welding Procedure Specification was fine tuned to minimize, in most cases, and eliminate detect-able tungsten inclusions in the welds. All th","authors_text":"A. Deshpande, Batavia, IL, J. Zahurones (Fermi National Accelerator Laboratory, K. E. Anderson, USA), V. I. Sidorov","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2024-05-29T18:55:46Z","title":"Optimization of a Welding Procedure for Making Critical Aluminum Welds on the LBNF Absorber Core Block"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.12883","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":"sha256:2eb994ec60e25702eaf96207aab78c7c951d2366a8b9c54dbd5d80f38dd09772","target":"record","created_at":"2026-07-05T08:33:52Z","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":"b255936b0b8d13f77df77e981e4835aad2a1ec43fb0375463aebe8056aeeb316","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2024-05-29T18:55:46Z","title_canon_sha256":"a81a5a3597bde4494e07b38902564339c5ef7db386256020b0e16e74082eea26"},"schema_version":"1.0","source":{"id":"2406.12883","kind":"arxiv","version":1}},"canonical_sha256":"b03d1b8069efaefbfbd753cfb68870e22f8838d37ff1e90d14210a11c19e0d0e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b03d1b8069efaefbfbd753cfb68870e22f8838d37ff1e90d14210a11c19e0d0e","first_computed_at":"2026-07-05T08:33:52.837064Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:33:52.837064Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uR9dQpdWDuF+8zokJqXOrgfNn7SGyjJAugrSlJdVHxDbUfIvrKKdSZ9W95FSAiBJ0+pi0Ae4+y5Kskg8iJXuBw==","signature_status":"signed_v1","signed_at":"2026-07-05T08:33:52.837498Z","signed_message":"canonical_sha256_bytes"},"source_id":"2406.12883","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2eb994ec60e25702eaf96207aab78c7c951d2366a8b9c54dbd5d80f38dd09772","sha256:532e441b9cf378e2a5691ef70eab4d9dd3189431caf5eefed251cc85cf1b6b11"],"state_sha256":"8c2a92e82d3af7026b1eb7029b9047bcb64b7d5f52b5132f310c918f05d77fc4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lpXhbkLXKtS0me1CNZNKlXIoR62Fj+tMks+dSsmF1/Sp8tqtFFQ4TsXtKMou1rScAAqH7uXFoSwp7lhiCMTRAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T09:03:17.147370Z","bundle_sha256":"49fa3ed0250fe708eb0a5b9e23d4087c644e372290601232b54c1acd53069d68"}}