{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:SLCQ4DZ74YFZGJBPZ4D23ELAUU","short_pith_number":"pith:SLCQ4DZ7","canonical_record":{"source":{"id":"1704.08761","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2017-04-27T22:06:34Z","cross_cats_sorted":[],"title_canon_sha256":"1d293934a1421b491ca3abc11d1a5f1fa93fe3b5ccf174646e5573c8811ad9cb","abstract_canon_sha256":"d81058a84f43326ab4516fa982d2b6b80459e84e9f1424eafe00065d853e6f5d"},"schema_version":"1.0"},"canonical_sha256":"92c50e0f3fe60b93242fcf07ad9160a539f01388a70cf5cd6a43486fa0837c26","source":{"kind":"arxiv","id":"1704.08761","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.08761","created_at":"2026-05-18T00:35:46Z"},{"alias_kind":"arxiv_version","alias_value":"1704.08761v2","created_at":"2026-05-18T00:35:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.08761","created_at":"2026-05-18T00:35:46Z"},{"alias_kind":"pith_short_12","alias_value":"SLCQ4DZ74YFZ","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"SLCQ4DZ74YFZGJBP","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"SLCQ4DZ7","created_at":"2026-05-18T12:31:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:SLCQ4DZ74YFZGJBPZ4D23ELAUU","target":"record","payload":{"canonical_record":{"source":{"id":"1704.08761","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2017-04-27T22:06:34Z","cross_cats_sorted":[],"title_canon_sha256":"1d293934a1421b491ca3abc11d1a5f1fa93fe3b5ccf174646e5573c8811ad9cb","abstract_canon_sha256":"d81058a84f43326ab4516fa982d2b6b80459e84e9f1424eafe00065d853e6f5d"},"schema_version":"1.0"},"canonical_sha256":"92c50e0f3fe60b93242fcf07ad9160a539f01388a70cf5cd6a43486fa0837c26","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:35:46.323413Z","signature_b64":"KwGiZ0xeg3HdbO7LDW0ntxbrMShWDtzDaXyzHvGtdVoL48MUhEfzz/EzsqbGvn9fPHjJIkmU+DD7zW9FWKBZCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"92c50e0f3fe60b93242fcf07ad9160a539f01388a70cf5cd6a43486fa0837c26","last_reissued_at":"2026-05-18T00:35:46.322943Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:35:46.322943Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1704.08761","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:35:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Awpa208L47OY1MpUzHQ2o8+sq41aOKb0PZhf5nS2lesZnerkUz3KQ3Se/SQD02/n6BB28RX5pCO+cA50MvKUDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T18:19:13.871246Z"},"content_sha256":"f975a51169c5bc4070e371ec8de71ebb3732ed6bbb3aa0ee31d3471f272acc7d","schema_version":"1.0","event_id":"sha256:f975a51169c5bc4070e371ec8de71ebb3732ed6bbb3aa0ee31d3471f272acc7d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:SLCQ4DZ74YFZGJBPZ4D23ELAUU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Measurement of the $^{64}$Zn,$^{47}$Ti(n,p) Cross Sections using a DD Neutron Generator for Medical Isotope Studies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"Andrew Voyles, Daniel Rutte, Eric Matthews, Jon Batchelder, Joseph Bauer, Karl van Bibber, Lee Bernstein, Mauricio Unzueta, M.S. Basunia, Paul Renne, Tim Becker","submitted_at":"2017-04-27T22:06:34Z","abstract_excerpt":"Cross sections for the $^{47}$Ti(n,p)$^{47}$Sc and $^{64}$Zn(n,p)$^{64}$Cu reactions have been measured for quasi-monoenergetic DD neutrons produced by the UC Berkeley High Flux Neutron Generator (HFNG). The HFNG is a compact neutron generator designed as a \"flux-trap\" that maximizes the probability that a neutron will interact with a sample loaded into a specific, central location. The study was motivated by interest in the production of $^{47}$Sc and $^{64}$Cu as emerging medical isotopes. The cross sections were measured in ratio to the $^{113}$In(n,n')$^{113m}$In and $^{115}$In(n,n')$^{115"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.08761","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-18T00:35:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MrJ8RtFzyemp9dlhpZnUDN/hJKo7OIMuR9Zl5IrzHZhyuayZDA6c/n10SVvLGF7zbfT8U9GdgpgK9PlDJfHhCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T18:19:13.871629Z"},"content_sha256":"fcff0a7869bd207b8647101883452149c02806d2e6e83afc4d2ed45bad225c43","schema_version":"1.0","event_id":"sha256:fcff0a7869bd207b8647101883452149c02806d2e6e83afc4d2ed45bad225c43"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SLCQ4DZ74YFZGJBPZ4D23ELAUU/bundle.json","state_url":"https://pith.science/pith/SLCQ4DZ74YFZGJBPZ4D23ELAUU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SLCQ4DZ74YFZGJBPZ4D23ELAUU/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":"2026-06-01T18:19:13Z","links":{"resolver":"https://pith.science/pith/SLCQ4DZ74YFZGJBPZ4D23ELAUU","bundle":"https://pith.science/pith/SLCQ4DZ74YFZGJBPZ4D23ELAUU/bundle.json","state":"https://pith.science/pith/SLCQ4DZ74YFZGJBPZ4D23ELAUU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SLCQ4DZ74YFZGJBPZ4D23ELAUU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:SLCQ4DZ74YFZGJBPZ4D23ELAUU","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":"d81058a84f43326ab4516fa982d2b6b80459e84e9f1424eafe00065d853e6f5d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2017-04-27T22:06:34Z","title_canon_sha256":"1d293934a1421b491ca3abc11d1a5f1fa93fe3b5ccf174646e5573c8811ad9cb"},"schema_version":"1.0","source":{"id":"1704.08761","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.08761","created_at":"2026-05-18T00:35:46Z"},{"alias_kind":"arxiv_version","alias_value":"1704.08761v2","created_at":"2026-05-18T00:35:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.08761","created_at":"2026-05-18T00:35:46Z"},{"alias_kind":"pith_short_12","alias_value":"SLCQ4DZ74YFZ","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"SLCQ4DZ74YFZGJBP","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"SLCQ4DZ7","created_at":"2026-05-18T12:31:43Z"}],"graph_snapshots":[{"event_id":"sha256:fcff0a7869bd207b8647101883452149c02806d2e6e83afc4d2ed45bad225c43","target":"graph","created_at":"2026-05-18T00:35:46Z","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":"Cross sections for the $^{47}$Ti(n,p)$^{47}$Sc and $^{64}$Zn(n,p)$^{64}$Cu reactions have been measured for quasi-monoenergetic DD neutrons produced by the UC Berkeley High Flux Neutron Generator (HFNG). The HFNG is a compact neutron generator designed as a \"flux-trap\" that maximizes the probability that a neutron will interact with a sample loaded into a specific, central location. The study was motivated by interest in the production of $^{47}$Sc and $^{64}$Cu as emerging medical isotopes. The cross sections were measured in ratio to the $^{113}$In(n,n')$^{113m}$In and $^{115}$In(n,n')$^{115","authors_text":"Andrew Voyles, Daniel Rutte, Eric Matthews, Jon Batchelder, Joseph Bauer, Karl van Bibber, Lee Bernstein, Mauricio Unzueta, M.S. Basunia, Paul Renne, Tim Becker","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2017-04-27T22:06:34Z","title":"Measurement of the $^{64}$Zn,$^{47}$Ti(n,p) Cross Sections using a DD Neutron Generator for Medical Isotope Studies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.08761","kind":"arxiv","version":2},"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:f975a51169c5bc4070e371ec8de71ebb3732ed6bbb3aa0ee31d3471f272acc7d","target":"record","created_at":"2026-05-18T00:35:46Z","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":"d81058a84f43326ab4516fa982d2b6b80459e84e9f1424eafe00065d853e6f5d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2017-04-27T22:06:34Z","title_canon_sha256":"1d293934a1421b491ca3abc11d1a5f1fa93fe3b5ccf174646e5573c8811ad9cb"},"schema_version":"1.0","source":{"id":"1704.08761","kind":"arxiv","version":2}},"canonical_sha256":"92c50e0f3fe60b93242fcf07ad9160a539f01388a70cf5cd6a43486fa0837c26","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"92c50e0f3fe60b93242fcf07ad9160a539f01388a70cf5cd6a43486fa0837c26","first_computed_at":"2026-05-18T00:35:46.322943Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:35:46.322943Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KwGiZ0xeg3HdbO7LDW0ntxbrMShWDtzDaXyzHvGtdVoL48MUhEfzz/EzsqbGvn9fPHjJIkmU+DD7zW9FWKBZCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:35:46.323413Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.08761","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f975a51169c5bc4070e371ec8de71ebb3732ed6bbb3aa0ee31d3471f272acc7d","sha256:fcff0a7869bd207b8647101883452149c02806d2e6e83afc4d2ed45bad225c43"],"state_sha256":"b959e8bbf50099af9d6a8bcf04ac0d1f8cc457fd5f1bf999a32a54952a0f5102"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FvKHiHb8DlK7U2acENmQdK8/ZfP6QdpSrscCNGCN4jFV2CLrD5BS2HriHOZRY65zn5ZRICnyCSG17RB+n+u6Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T18:19:13.873547Z","bundle_sha256":"82ff468cb2efdaade80f93c1dff6ca053463c6fdc944b02b852045b784c0adc1"}}