{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:RCZMXFE5JFG5DA6MQ32DJKA4W2","short_pith_number":"pith:RCZMXFE5","canonical_record":{"source":{"id":"1904.06058","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2019-04-12T06:34:17Z","cross_cats_sorted":[],"title_canon_sha256":"60f372dfb8d03d2d52cbdcdc73120e525d7bbee8221f4510f48489ce5a308cb8","abstract_canon_sha256":"7c7403d416aa782b51dd7f99f8ba06d52d33b075be8863cd772ad8e5c4396746"},"schema_version":"1.0"},"canonical_sha256":"88b2cb949d494dd183cc86f434a81cb69afad356c2e19178e9729a8ce5c119c7","source":{"kind":"arxiv","id":"1904.06058","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.06058","created_at":"2026-05-17T23:48:44Z"},{"alias_kind":"arxiv_version","alias_value":"1904.06058v1","created_at":"2026-05-17T23:48:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.06058","created_at":"2026-05-17T23:48:44Z"},{"alias_kind":"pith_short_12","alias_value":"RCZMXFE5JFG5","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"RCZMXFE5JFG5DA6M","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"RCZMXFE5","created_at":"2026-05-18T12:33:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:RCZMXFE5JFG5DA6MQ32DJKA4W2","target":"record","payload":{"canonical_record":{"source":{"id":"1904.06058","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2019-04-12T06:34:17Z","cross_cats_sorted":[],"title_canon_sha256":"60f372dfb8d03d2d52cbdcdc73120e525d7bbee8221f4510f48489ce5a308cb8","abstract_canon_sha256":"7c7403d416aa782b51dd7f99f8ba06d52d33b075be8863cd772ad8e5c4396746"},"schema_version":"1.0"},"canonical_sha256":"88b2cb949d494dd183cc86f434a81cb69afad356c2e19178e9729a8ce5c119c7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:48:44.367827Z","signature_b64":"p/M2hryrbpAb7RfHlh4VQGeMTgL7Ks6XBerogwpwUdpAIFpFZqjuIfnNJi3qDyeUQHIZReIOYmCnoVdMgVdUAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"88b2cb949d494dd183cc86f434a81cb69afad356c2e19178e9729a8ce5c119c7","last_reissued_at":"2026-05-17T23:48:44.367261Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:48:44.367261Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1904.06058","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":"2026-05-17T23:48:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tch3gzKEV1mJjY0Toq9+6i8UqNqk4G2jVlduQijemZIshrzIl3+hNMyWe0nveQv2ZNLofZ2+zukPkPV9DrcNBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T19:58:22.898632Z"},"content_sha256":"9888215dd4f8093c2404233384eaba53a01d595e15f82d416d08f0abc5f3efc0","schema_version":"1.0","event_id":"sha256:9888215dd4f8093c2404233384eaba53a01d595e15f82d416d08f0abc5f3efc0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:RCZMXFE5JFG5DA6MQ32DJKA4W2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Excitation function of 27Al+ 20Ne reaction upto 166 MeV","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"Dibyasree Choudhury, Susanta Lahiri","submitted_at":"2019-04-12T06:34:17Z","abstract_excerpt":"Aluminium is used as energy degrader or catcher foil or as backing material in nuclear physics experiments. Excitations functions of 27Al+ 20Ne reaction in the projectile energy range 49-166 MeV were measured using stacked foil technique. Various evaporation residues such as 43,44Sc, 41Ar, 34m,38Cl, etc., were identified in the matrix."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.06058","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":""},"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":"2026-05-17T23:48:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+nYHXcJgP/WBDkKUGZQ3Xpno5JMj1jvdesan+SsntwsDBM5cEvPlhQVR+xNmPZUbWjg1QMs4nzFJysu7cJhgBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T19:58:22.899164Z"},"content_sha256":"3afd214b60a60df121fc74b9bb2efdda95a91626f2583b7a99a99052e56d2d5f","schema_version":"1.0","event_id":"sha256:3afd214b60a60df121fc74b9bb2efdda95a91626f2583b7a99a99052e56d2d5f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RCZMXFE5JFG5DA6MQ32DJKA4W2/bundle.json","state_url":"https://pith.science/pith/RCZMXFE5JFG5DA6MQ32DJKA4W2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RCZMXFE5JFG5DA6MQ32DJKA4W2/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":"2026-06-23T19:58:22Z","links":{"resolver":"https://pith.science/pith/RCZMXFE5JFG5DA6MQ32DJKA4W2","bundle":"https://pith.science/pith/RCZMXFE5JFG5DA6MQ32DJKA4W2/bundle.json","state":"https://pith.science/pith/RCZMXFE5JFG5DA6MQ32DJKA4W2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RCZMXFE5JFG5DA6MQ32DJKA4W2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:RCZMXFE5JFG5DA6MQ32DJKA4W2","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":"7c7403d416aa782b51dd7f99f8ba06d52d33b075be8863cd772ad8e5c4396746","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2019-04-12T06:34:17Z","title_canon_sha256":"60f372dfb8d03d2d52cbdcdc73120e525d7bbee8221f4510f48489ce5a308cb8"},"schema_version":"1.0","source":{"id":"1904.06058","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.06058","created_at":"2026-05-17T23:48:44Z"},{"alias_kind":"arxiv_version","alias_value":"1904.06058v1","created_at":"2026-05-17T23:48:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.06058","created_at":"2026-05-17T23:48:44Z"},{"alias_kind":"pith_short_12","alias_value":"RCZMXFE5JFG5","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"RCZMXFE5JFG5DA6M","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"RCZMXFE5","created_at":"2026-05-18T12:33:27Z"}],"graph_snapshots":[{"event_id":"sha256:3afd214b60a60df121fc74b9bb2efdda95a91626f2583b7a99a99052e56d2d5f","target":"graph","created_at":"2026-05-17T23:48:44Z","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":"Aluminium is used as energy degrader or catcher foil or as backing material in nuclear physics experiments. Excitations functions of 27Al+ 20Ne reaction in the projectile energy range 49-166 MeV were measured using stacked foil technique. Various evaporation residues such as 43,44Sc, 41Ar, 34m,38Cl, etc., were identified in the matrix.","authors_text":"Dibyasree Choudhury, Susanta Lahiri","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2019-04-12T06:34:17Z","title":"Excitation function of 27Al+ 20Ne reaction upto 166 MeV"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.06058","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":"sha256:9888215dd4f8093c2404233384eaba53a01d595e15f82d416d08f0abc5f3efc0","target":"record","created_at":"2026-05-17T23:48:44Z","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":"7c7403d416aa782b51dd7f99f8ba06d52d33b075be8863cd772ad8e5c4396746","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2019-04-12T06:34:17Z","title_canon_sha256":"60f372dfb8d03d2d52cbdcdc73120e525d7bbee8221f4510f48489ce5a308cb8"},"schema_version":"1.0","source":{"id":"1904.06058","kind":"arxiv","version":1}},"canonical_sha256":"88b2cb949d494dd183cc86f434a81cb69afad356c2e19178e9729a8ce5c119c7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"88b2cb949d494dd183cc86f434a81cb69afad356c2e19178e9729a8ce5c119c7","first_computed_at":"2026-05-17T23:48:44.367261Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:48:44.367261Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"p/M2hryrbpAb7RfHlh4VQGeMTgL7Ks6XBerogwpwUdpAIFpFZqjuIfnNJi3qDyeUQHIZReIOYmCnoVdMgVdUAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:48:44.367827Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.06058","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9888215dd4f8093c2404233384eaba53a01d595e15f82d416d08f0abc5f3efc0","sha256:3afd214b60a60df121fc74b9bb2efdda95a91626f2583b7a99a99052e56d2d5f"],"state_sha256":"565fd4c5a623d8b2847c476eeb774d4a0aec76b0af761c6658fe41f0febb8aef"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Bs9rzbk5t4n6Py2u7ZfUzBtV+FkSPJ6W3zUP7kJDe4RLaEYEfV1DeIYHGUQDbv554Rmtqaxy582cJWf2HhhsDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-23T19:58:22.901749Z","bundle_sha256":"45557051deb69da0640611598412f6aac817ebab08aeffc71a4cb6a3af6d5f18"}}