{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:3JBA5GA7PVHMXKOK2WTHTPH4UF","short_pith_number":"pith:3JBA5GA7","canonical_record":{"source":{"id":"1607.06876","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-07-23T01:58:26Z","cross_cats_sorted":[],"title_canon_sha256":"b32544452767156e98d0faeeaeab11f6dd4f56fec0fdb743a4d5ac2287f18bd7","abstract_canon_sha256":"3c80d78a79472e2500be83b245a0dcfd1a7dadf728085bfa4107d5129c6ced63"},"schema_version":"1.0"},"canonical_sha256":"da420e981f7d4ecba9cad5a679bcfca16bd1f92839f0f9f3dad17d87c3344d84","source":{"kind":"arxiv","id":"1607.06876","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.06876","created_at":"2026-05-18T00:37:52Z"},{"alias_kind":"arxiv_version","alias_value":"1607.06876v4","created_at":"2026-05-18T00:37:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.06876","created_at":"2026-05-18T00:37:52Z"},{"alias_kind":"pith_short_12","alias_value":"3JBA5GA7PVHM","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_16","alias_value":"3JBA5GA7PVHMXKOK","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_8","alias_value":"3JBA5GA7","created_at":"2026-05-18T12:29:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:3JBA5GA7PVHMXKOK2WTHTPH4UF","target":"record","payload":{"canonical_record":{"source":{"id":"1607.06876","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-07-23T01:58:26Z","cross_cats_sorted":[],"title_canon_sha256":"b32544452767156e98d0faeeaeab11f6dd4f56fec0fdb743a4d5ac2287f18bd7","abstract_canon_sha256":"3c80d78a79472e2500be83b245a0dcfd1a7dadf728085bfa4107d5129c6ced63"},"schema_version":"1.0"},"canonical_sha256":"da420e981f7d4ecba9cad5a679bcfca16bd1f92839f0f9f3dad17d87c3344d84","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:37:52.816342Z","signature_b64":"txwKbz5oJkX1q2pGk6nbyJDXsJmnAs2+KiBEf5xWMLOalKSDpBgjWzR66bt2ENbu1yR4ffbjtgPC1Kvle7S2BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"da420e981f7d4ecba9cad5a679bcfca16bd1f92839f0f9f3dad17d87c3344d84","last_reissued_at":"2026-05-18T00:37:52.815712Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:37:52.815712Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1607.06876","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:37:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QTQDzcIBqIV9JWoCngoRJ2P6wP/QPFxfzjkjIHq43CuIkSDdhghabcJcfA9psvF7sDoG+uCTpyhtIqHZ6mcJAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T07:34:49.289435Z"},"content_sha256":"93eca02b5884677ccc0ed4aa7557cb94fb388a282bd9a0080c04b5e03f0071d9","schema_version":"1.0","event_id":"sha256:93eca02b5884677ccc0ed4aa7557cb94fb388a282bd9a0080c04b5e03f0071d9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:3JBA5GA7PVHMXKOK2WTHTPH4UF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Proposed experiments to detect keV range sterile neutrinos using energy-momentum reconstruction of beta decay or K-capture events","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"Peter F Smith","submitted_at":"2016-07-23T01:58:26Z","abstract_excerpt":"Sterile neutrinos in the keV mass range may constitute the galactic dark matter. Various proposed direct detection and laboratory searches are reviewed. The most promising method in the near future is complete energy-momentum reconstruction of individual beta-decay or K-capture events, using atoms suspended in a magneto-optical trap. A survey of suitable isotopes is presented, together with the measurement precision required in a typical experimental configuration. It is concluded that among the most promising are the K-capture isotopes 131Cs, which requires measurement of an X-ray and several"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.06876","kind":"arxiv","version":4},"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":"2026-05-18T00:37:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QbbFNUeeyEcW+/qge6SIGOUkz/lTuXpRz+2L9y+ZNckZzxMK7xl8YqrICfB4jAuFEPSlkVdXkD5UVjhYwfcWDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T07:34:49.290086Z"},"content_sha256":"3180bba000d7526f9ab4cfba3fb868e53c4b504358ea9f0591b3201c952b4e52","schema_version":"1.0","event_id":"sha256:3180bba000d7526f9ab4cfba3fb868e53c4b504358ea9f0591b3201c952b4e52"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3JBA5GA7PVHMXKOK2WTHTPH4UF/bundle.json","state_url":"https://pith.science/pith/3JBA5GA7PVHMXKOK2WTHTPH4UF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3JBA5GA7PVHMXKOK2WTHTPH4UF/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":"2026-05-30T07:34:49Z","links":{"resolver":"https://pith.science/pith/3JBA5GA7PVHMXKOK2WTHTPH4UF","bundle":"https://pith.science/pith/3JBA5GA7PVHMXKOK2WTHTPH4UF/bundle.json","state":"https://pith.science/pith/3JBA5GA7PVHMXKOK2WTHTPH4UF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3JBA5GA7PVHMXKOK2WTHTPH4UF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:3JBA5GA7PVHMXKOK2WTHTPH4UF","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":"3c80d78a79472e2500be83b245a0dcfd1a7dadf728085bfa4107d5129c6ced63","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-07-23T01:58:26Z","title_canon_sha256":"b32544452767156e98d0faeeaeab11f6dd4f56fec0fdb743a4d5ac2287f18bd7"},"schema_version":"1.0","source":{"id":"1607.06876","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.06876","created_at":"2026-05-18T00:37:52Z"},{"alias_kind":"arxiv_version","alias_value":"1607.06876v4","created_at":"2026-05-18T00:37:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.06876","created_at":"2026-05-18T00:37:52Z"},{"alias_kind":"pith_short_12","alias_value":"3JBA5GA7PVHM","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_16","alias_value":"3JBA5GA7PVHMXKOK","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_8","alias_value":"3JBA5GA7","created_at":"2026-05-18T12:29:55Z"}],"graph_snapshots":[{"event_id":"sha256:3180bba000d7526f9ab4cfba3fb868e53c4b504358ea9f0591b3201c952b4e52","target":"graph","created_at":"2026-05-18T00:37:52Z","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"},"paper":{"abstract_excerpt":"Sterile neutrinos in the keV mass range may constitute the galactic dark matter. Various proposed direct detection and laboratory searches are reviewed. The most promising method in the near future is complete energy-momentum reconstruction of individual beta-decay or K-capture events, using atoms suspended in a magneto-optical trap. A survey of suitable isotopes is presented, together with the measurement precision required in a typical experimental configuration. It is concluded that among the most promising are the K-capture isotopes 131Cs, which requires measurement of an X-ray and several","authors_text":"Peter F Smith","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-07-23T01:58:26Z","title":"Proposed experiments to detect keV range sterile neutrinos using energy-momentum reconstruction of beta decay or K-capture events"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.06876","kind":"arxiv","version":4},"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":"sha256:93eca02b5884677ccc0ed4aa7557cb94fb388a282bd9a0080c04b5e03f0071d9","target":"record","created_at":"2026-05-18T00:37:52Z","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":"3c80d78a79472e2500be83b245a0dcfd1a7dadf728085bfa4107d5129c6ced63","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-07-23T01:58:26Z","title_canon_sha256":"b32544452767156e98d0faeeaeab11f6dd4f56fec0fdb743a4d5ac2287f18bd7"},"schema_version":"1.0","source":{"id":"1607.06876","kind":"arxiv","version":4}},"canonical_sha256":"da420e981f7d4ecba9cad5a679bcfca16bd1f92839f0f9f3dad17d87c3344d84","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"da420e981f7d4ecba9cad5a679bcfca16bd1f92839f0f9f3dad17d87c3344d84","first_computed_at":"2026-05-18T00:37:52.815712Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:37:52.815712Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"txwKbz5oJkX1q2pGk6nbyJDXsJmnAs2+KiBEf5xWMLOalKSDpBgjWzR66bt2ENbu1yR4ffbjtgPC1Kvle7S2BA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:37:52.816342Z","signed_message":"canonical_sha256_bytes"},"source_id":"1607.06876","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:93eca02b5884677ccc0ed4aa7557cb94fb388a282bd9a0080c04b5e03f0071d9","sha256:3180bba000d7526f9ab4cfba3fb868e53c4b504358ea9f0591b3201c952b4e52"],"state_sha256":"8d203abd455364ff4c49a86fcc63711ad6b1313d1554131568eada12cd0c184a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uB3/pRzjRPjdROEH7l0GxtUG2fVzAFdkrk9duchmuW/2Ah2yyqrJvPcyTykWEfxMhbGDG6mcJkXC65wGPQYZDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T07:34:49.293489Z","bundle_sha256":"465217863002521a0de8c90b27e6badeee09b3ddbf29b45fbe9f2224931e2ccd"}}