{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:APXRIHPTF67YFLFQKSZBLLPAFR","short_pith_number":"pith:APXRIHPT","canonical_record":{"source":{"id":"1412.7307","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-12-23T10:17:16Z","cross_cats_sorted":[],"title_canon_sha256":"abe768e185491e77cc6e82ba4ce30eb2d95ff54a1f82fcb18b85e40584ff7af2","abstract_canon_sha256":"0e033d7063544c9d37bbd47e0619146a79008654887a6911f3af2de6ff9d809e"},"schema_version":"1.0"},"canonical_sha256":"03ef141df32fbf82acb054b215ade02c4082156fea018fbd087f54e7524fb58c","source":{"kind":"arxiv","id":"1412.7307","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.7307","created_at":"2026-05-18T01:41:15Z"},{"alias_kind":"arxiv_version","alias_value":"1412.7307v1","created_at":"2026-05-18T01:41:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.7307","created_at":"2026-05-18T01:41:15Z"},{"alias_kind":"pith_short_12","alias_value":"APXRIHPTF67Y","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"APXRIHPTF67YFLFQ","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"APXRIHPT","created_at":"2026-05-18T12:28:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:APXRIHPTF67YFLFQKSZBLLPAFR","target":"record","payload":{"canonical_record":{"source":{"id":"1412.7307","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-12-23T10:17:16Z","cross_cats_sorted":[],"title_canon_sha256":"abe768e185491e77cc6e82ba4ce30eb2d95ff54a1f82fcb18b85e40584ff7af2","abstract_canon_sha256":"0e033d7063544c9d37bbd47e0619146a79008654887a6911f3af2de6ff9d809e"},"schema_version":"1.0"},"canonical_sha256":"03ef141df32fbf82acb054b215ade02c4082156fea018fbd087f54e7524fb58c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:15.947473Z","signature_b64":"MOcY3Ga+CmAkZDOtoVTBjiinol7MSvr48OCvwFoPj0pCP10H9cRuApEO/+VUUXtZQsSQmmuzmM2BEKDynnS2AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"03ef141df32fbf82acb054b215ade02c4082156fea018fbd087f54e7524fb58c","last_reissued_at":"2026-05-18T01:41:15.947028Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:15.947028Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1412.7307","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":"2026-05-18T01:41:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wyIPRfsncilihr5JX9zjs0TlSVy0jqYxGjjfi6zZMMw8y8lD2jO7SDe5blfi4Oyvyp8HrPBDT+rrmZz5wWGuBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T07:58:26.689075Z"},"content_sha256":"dfb7f214e840b4933470f5d81492d9aaa56f59cdaf09fdd17971cd83acce37e5","schema_version":"1.0","event_id":"sha256:dfb7f214e840b4933470f5d81492d9aaa56f59cdaf09fdd17971cd83acce37e5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:APXRIHPTF67YFLFQKSZBLLPAFR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Hybrid Superconducting Neutron Detectors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"A. Pietropaolo, A. Scherillo, G. Celentano, I. Ottaviani, M. Cirillo, M. Lucci, M. Salvato, V. Merlo","submitted_at":"2014-12-23T10:17:16Z","abstract_excerpt":"A new neutron detection concept is presented that is based on superconductive niobium (Nb) strips coated by a boron (B) layer. The working principle of the detector relies on the nuclear reaction 10B+n $\\rightarrow$ $\\alpha$+ 7Li , with $\\alpha$ and Li ions generating a hot spot on the current-biased Nb strip which in turn induces a superconducting-normal state transition. The latter is recognized as a voltage signal which is the evidence of the incident neutron. The above described detection principle has been experimentally assessed and verified by irradiating the samples with a pulsed neutr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.7307","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":"2026-05-18T01:41:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yXlDxyI6fuSe6rYY/AeB5GpFXTGVht8DPtRnni/wuFcNHoaScdphmsMyyJoXCK2K+BrqVSI7Kdi50ehTpDwrDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T07:58:26.689821Z"},"content_sha256":"7392cc0afc3cd7842bc56e2cd1724367d663899f313004e73042e1c91195edf4","schema_version":"1.0","event_id":"sha256:7392cc0afc3cd7842bc56e2cd1724367d663899f313004e73042e1c91195edf4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/APXRIHPTF67YFLFQKSZBLLPAFR/bundle.json","state_url":"https://pith.science/pith/APXRIHPTF67YFLFQKSZBLLPAFR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/APXRIHPTF67YFLFQKSZBLLPAFR/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":"2026-05-25T07:58:26Z","links":{"resolver":"https://pith.science/pith/APXRIHPTF67YFLFQKSZBLLPAFR","bundle":"https://pith.science/pith/APXRIHPTF67YFLFQKSZBLLPAFR/bundle.json","state":"https://pith.science/pith/APXRIHPTF67YFLFQKSZBLLPAFR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/APXRIHPTF67YFLFQKSZBLLPAFR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:APXRIHPTF67YFLFQKSZBLLPAFR","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":"0e033d7063544c9d37bbd47e0619146a79008654887a6911f3af2de6ff9d809e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-12-23T10:17:16Z","title_canon_sha256":"abe768e185491e77cc6e82ba4ce30eb2d95ff54a1f82fcb18b85e40584ff7af2"},"schema_version":"1.0","source":{"id":"1412.7307","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.7307","created_at":"2026-05-18T01:41:15Z"},{"alias_kind":"arxiv_version","alias_value":"1412.7307v1","created_at":"2026-05-18T01:41:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.7307","created_at":"2026-05-18T01:41:15Z"},{"alias_kind":"pith_short_12","alias_value":"APXRIHPTF67Y","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"APXRIHPTF67YFLFQ","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"APXRIHPT","created_at":"2026-05-18T12:28:19Z"}],"graph_snapshots":[{"event_id":"sha256:7392cc0afc3cd7842bc56e2cd1724367d663899f313004e73042e1c91195edf4","target":"graph","created_at":"2026-05-18T01:41:15Z","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":"A new neutron detection concept is presented that is based on superconductive niobium (Nb) strips coated by a boron (B) layer. The working principle of the detector relies on the nuclear reaction 10B+n $\\rightarrow$ $\\alpha$+ 7Li , with $\\alpha$ and Li ions generating a hot spot on the current-biased Nb strip which in turn induces a superconducting-normal state transition. The latter is recognized as a voltage signal which is the evidence of the incident neutron. The above described detection principle has been experimentally assessed and verified by irradiating the samples with a pulsed neutr","authors_text":"A. Pietropaolo, A. Scherillo, G. Celentano, I. Ottaviani, M. Cirillo, M. Lucci, M. Salvato, V. Merlo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-12-23T10:17:16Z","title":"Hybrid Superconducting Neutron Detectors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.7307","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:dfb7f214e840b4933470f5d81492d9aaa56f59cdaf09fdd17971cd83acce37e5","target":"record","created_at":"2026-05-18T01:41:15Z","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":"0e033d7063544c9d37bbd47e0619146a79008654887a6911f3af2de6ff9d809e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-12-23T10:17:16Z","title_canon_sha256":"abe768e185491e77cc6e82ba4ce30eb2d95ff54a1f82fcb18b85e40584ff7af2"},"schema_version":"1.0","source":{"id":"1412.7307","kind":"arxiv","version":1}},"canonical_sha256":"03ef141df32fbf82acb054b215ade02c4082156fea018fbd087f54e7524fb58c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"03ef141df32fbf82acb054b215ade02c4082156fea018fbd087f54e7524fb58c","first_computed_at":"2026-05-18T01:41:15.947028Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:15.947028Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MOcY3Ga+CmAkZDOtoVTBjiinol7MSvr48OCvwFoPj0pCP10H9cRuApEO/+VUUXtZQsSQmmuzmM2BEKDynnS2AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:15.947473Z","signed_message":"canonical_sha256_bytes"},"source_id":"1412.7307","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dfb7f214e840b4933470f5d81492d9aaa56f59cdaf09fdd17971cd83acce37e5","sha256:7392cc0afc3cd7842bc56e2cd1724367d663899f313004e73042e1c91195edf4"],"state_sha256":"bf8a8377fcf4a487cdb5ff21f9363391de0de0a8fb00a1f0e378dffc8a5ee983"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a3BIVrWQ0tPoSJ59mV3jL4JwoRTGnj1Mcn74JrDKYISUwL3nQZ+3fe6RU0N8sd95OUt8G0SN317V+99mQrtDDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T07:58:26.693676Z","bundle_sha256":"21e4fb693a5ae8be46c71e2b7c043011ff3abd72813a6dbe7f96759e6748f49f"}}