{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:23NITH2SFNGOXTU4GERYZ2EJLL","short_pith_number":"pith:23NITH2S","canonical_record":{"source":{"id":"0705.1533","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"nucl-ex","submitted_at":"2007-05-10T19:00:10Z","cross_cats_sorted":[],"title_canon_sha256":"82c751b6ffa28dc0dec4a1975f5b099a1129d8f3c9bde701f2a8b6d80933c122","abstract_canon_sha256":"b73d18f31fcfc10772bf06207eb29a1ba56d5988b8f0161a8003095e86dbff6e"},"schema_version":"1.0"},"canonical_sha256":"d6da899f522b4cebce9c31238ce8895ae7a009195ead75c52fd474b3fbc01f37","source":{"kind":"arxiv","id":"0705.1533","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0705.1533","created_at":"2026-05-18T04:09:16Z"},{"alias_kind":"arxiv_version","alias_value":"0705.1533v2","created_at":"2026-05-18T04:09:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0705.1533","created_at":"2026-05-18T04:09:16Z"},{"alias_kind":"pith_short_12","alias_value":"23NITH2SFNGO","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"23NITH2SFNGOXTU4","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"23NITH2S","created_at":"2026-05-18T12:25:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:23NITH2SFNGOXTU4GERYZ2EJLL","target":"record","payload":{"canonical_record":{"source":{"id":"0705.1533","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"nucl-ex","submitted_at":"2007-05-10T19:00:10Z","cross_cats_sorted":[],"title_canon_sha256":"82c751b6ffa28dc0dec4a1975f5b099a1129d8f3c9bde701f2a8b6d80933c122","abstract_canon_sha256":"b73d18f31fcfc10772bf06207eb29a1ba56d5988b8f0161a8003095e86dbff6e"},"schema_version":"1.0"},"canonical_sha256":"d6da899f522b4cebce9c31238ce8895ae7a009195ead75c52fd474b3fbc01f37","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:09:16.682793Z","signature_b64":"VJZqSfdOnio1AcMDqnL8HucdBURV9qEKNi/tm2jAkXyBh8Wib9AeHZTPdSfmbTgcJr86x2/DMcCK8nv3U3k0DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d6da899f522b4cebce9c31238ce8895ae7a009195ead75c52fd474b3fbc01f37","last_reissued_at":"2026-05-18T04:09:16.682358Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:09:16.682358Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0705.1533","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":"2026-05-18T04:09:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UWXK7cNnM1Zco2DoG2qzQbpcd7oIIobAHbcrrBvkVAnQw9okeQR4B4W2lCPzCipoUlYkmmmbXdmmVwh9XH5lBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T10:09:29.785798Z"},"content_sha256":"dcd986d75ed39d160746db329059637f51c16217df27eab08dcc55fd94d54ddf","schema_version":"1.0","event_id":"sha256:dcd986d75ed39d160746db329059637f51c16217df27eab08dcc55fd94d54ddf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:23NITH2SFNGOXTU4GERYZ2EJLL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Neutronic performances of the MEGAPIE target","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Letourneau, E. Dupont, F. Chartier, F. Molinie, J. Ch. Toussaint, L. Oriol, O. Bringer, P. Beauvais, P. Lotrus, S. Chabod, S. Panebianco","submitted_at":"2007-05-10T19:00:10Z","abstract_excerpt":"The MEGAPIE project is a key experiment on the road to Accelerator Driven Systems and it provides the scientific community with unique data on the behavior of a liquid lead-bismuth spallation target under realistic and long term irradiation conditions. The neutronic of such target is of course of prime importance when considering its final destination as an intense neutron source. This is the motivation to characterize the inside neutron flux of the target in operation. A complex detector, made of 8 micro fission-chambers, has been built and installed in the core of the target, few tens of cen"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0705.1533","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":"2026-05-18T04:09:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tok5Mw13AnKuPmqkPTzrLBZzisdjt701HzQ0dBpnlsq/PaBHUvAfjAt4d8kBLFJtrX3HIipro+zIFGIFj1lUAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T10:09:29.786143Z"},"content_sha256":"043b6101ea79d56c8dd0a4c471eb6f70a75c3665c5b6380cd4bc12b5a827c332","schema_version":"1.0","event_id":"sha256:043b6101ea79d56c8dd0a4c471eb6f70a75c3665c5b6380cd4bc12b5a827c332"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/23NITH2SFNGOXTU4GERYZ2EJLL/bundle.json","state_url":"https://pith.science/pith/23NITH2SFNGOXTU4GERYZ2EJLL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/23NITH2SFNGOXTU4GERYZ2EJLL/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":"2026-06-12T10:09:29Z","links":{"resolver":"https://pith.science/pith/23NITH2SFNGOXTU4GERYZ2EJLL","bundle":"https://pith.science/pith/23NITH2SFNGOXTU4GERYZ2EJLL/bundle.json","state":"https://pith.science/pith/23NITH2SFNGOXTU4GERYZ2EJLL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/23NITH2SFNGOXTU4GERYZ2EJLL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:23NITH2SFNGOXTU4GERYZ2EJLL","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":"b73d18f31fcfc10772bf06207eb29a1ba56d5988b8f0161a8003095e86dbff6e","cross_cats_sorted":[],"license":"","primary_cat":"nucl-ex","submitted_at":"2007-05-10T19:00:10Z","title_canon_sha256":"82c751b6ffa28dc0dec4a1975f5b099a1129d8f3c9bde701f2a8b6d80933c122"},"schema_version":"1.0","source":{"id":"0705.1533","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0705.1533","created_at":"2026-05-18T04:09:16Z"},{"alias_kind":"arxiv_version","alias_value":"0705.1533v2","created_at":"2026-05-18T04:09:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0705.1533","created_at":"2026-05-18T04:09:16Z"},{"alias_kind":"pith_short_12","alias_value":"23NITH2SFNGO","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"23NITH2SFNGOXTU4","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"23NITH2S","created_at":"2026-05-18T12:25:54Z"}],"graph_snapshots":[{"event_id":"sha256:043b6101ea79d56c8dd0a4c471eb6f70a75c3665c5b6380cd4bc12b5a827c332","target":"graph","created_at":"2026-05-18T04:09:16Z","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 MEGAPIE project is a key experiment on the road to Accelerator Driven Systems and it provides the scientific community with unique data on the behavior of a liquid lead-bismuth spallation target under realistic and long term irradiation conditions. The neutronic of such target is of course of prime importance when considering its final destination as an intense neutron source. This is the motivation to characterize the inside neutron flux of the target in operation. A complex detector, made of 8 micro fission-chambers, has been built and installed in the core of the target, few tens of cen","authors_text":"A. Letourneau, E. Dupont, F. Chartier, F. Molinie, J. Ch. Toussaint, L. Oriol, O. Bringer, P. Beauvais, P. Lotrus, S. Chabod, S. Panebianco","cross_cats":[],"headline":"","license":"","primary_cat":"nucl-ex","submitted_at":"2007-05-10T19:00:10Z","title":"Neutronic performances of the MEGAPIE target"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0705.1533","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:dcd986d75ed39d160746db329059637f51c16217df27eab08dcc55fd94d54ddf","target":"record","created_at":"2026-05-18T04:09:16Z","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":"b73d18f31fcfc10772bf06207eb29a1ba56d5988b8f0161a8003095e86dbff6e","cross_cats_sorted":[],"license":"","primary_cat":"nucl-ex","submitted_at":"2007-05-10T19:00:10Z","title_canon_sha256":"82c751b6ffa28dc0dec4a1975f5b099a1129d8f3c9bde701f2a8b6d80933c122"},"schema_version":"1.0","source":{"id":"0705.1533","kind":"arxiv","version":2}},"canonical_sha256":"d6da899f522b4cebce9c31238ce8895ae7a009195ead75c52fd474b3fbc01f37","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d6da899f522b4cebce9c31238ce8895ae7a009195ead75c52fd474b3fbc01f37","first_computed_at":"2026-05-18T04:09:16.682358Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:09:16.682358Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VJZqSfdOnio1AcMDqnL8HucdBURV9qEKNi/tm2jAkXyBh8Wib9AeHZTPdSfmbTgcJr86x2/DMcCK8nv3U3k0DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:09:16.682793Z","signed_message":"canonical_sha256_bytes"},"source_id":"0705.1533","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dcd986d75ed39d160746db329059637f51c16217df27eab08dcc55fd94d54ddf","sha256:043b6101ea79d56c8dd0a4c471eb6f70a75c3665c5b6380cd4bc12b5a827c332"],"state_sha256":"b90bfbc11f91cf7f567b5e2abdf523e94c0908ad05a009046d275923b4a58f5b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P6jDYIHetvNijw5d0zFDMwIQwSokaym2NMso4T7v3BzXSSr8mHe6VskyC9mjaqKHf1ZqONDRs6IEBeMHGju9Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-12T10:09:29.788286Z","bundle_sha256":"ed8324ba6f0b0e8a8cb11eeba62f94baec0918b8bd2cc6e52b46346a79a47db9"}}