{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:4ZZCOU7L3CZQBLM5T672VGVFMI","short_pith_number":"pith:4ZZCOU7L","canonical_record":{"source":{"id":"1001.5273","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2010-01-29T18:34:18Z","cross_cats_sorted":[],"title_canon_sha256":"b2e27b17d708a19578d36098f51287c168c23f21f654bcb45103f35e3ea3bc70","abstract_canon_sha256":"d61b153482ceb5294cfd47f6b5fbac12e8838558789e64ee04d858273405431c"},"schema_version":"1.0"},"canonical_sha256":"e6722753ebd8b300ad9d9fbfaa9aa5622121dcf9cec1cd4da5f97da0208a9714","source":{"kind":"arxiv","id":"1001.5273","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1001.5273","created_at":"2026-05-18T03:58:51Z"},{"alias_kind":"arxiv_version","alias_value":"1001.5273v1","created_at":"2026-05-18T03:58:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1001.5273","created_at":"2026-05-18T03:58:51Z"},{"alias_kind":"pith_short_12","alias_value":"4ZZCOU7L3CZQ","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_16","alias_value":"4ZZCOU7L3CZQBLM5","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_8","alias_value":"4ZZCOU7L","created_at":"2026-05-18T12:26:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:4ZZCOU7L3CZQBLM5T672VGVFMI","target":"record","payload":{"canonical_record":{"source":{"id":"1001.5273","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2010-01-29T18:34:18Z","cross_cats_sorted":[],"title_canon_sha256":"b2e27b17d708a19578d36098f51287c168c23f21f654bcb45103f35e3ea3bc70","abstract_canon_sha256":"d61b153482ceb5294cfd47f6b5fbac12e8838558789e64ee04d858273405431c"},"schema_version":"1.0"},"canonical_sha256":"e6722753ebd8b300ad9d9fbfaa9aa5622121dcf9cec1cd4da5f97da0208a9714","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:58:51.845142Z","signature_b64":"uTy1A1Ee+KZPV0o1w5e1cicDBpA2ou8AFyDiY9j/rNTO9ehvWzl8hrz+Fvmaqs8p7yxkvrU/YaWeo/S3pRYXCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e6722753ebd8b300ad9d9fbfaa9aa5622121dcf9cec1cd4da5f97da0208a9714","last_reissued_at":"2026-05-18T03:58:51.843183Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:58:51.843183Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1001.5273","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":"2026-05-18T03:58:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Cp3l5DVsEOLVJpU1Axm7CiYivlGYp0F/E+ConZtosHNbIKguyGrJM0CdPQ+VIZuUPgf+eBKxHIXcBGgmKkTbCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T19:56:04.358021Z"},"content_sha256":"7d9794a3e1b5f7b86f535e21d4df9c442b4e43ac2e4d3811d13a0251496306b1","schema_version":"1.0","event_id":"sha256:7d9794a3e1b5f7b86f535e21d4df9c442b4e43ac2e4d3811d13a0251496306b1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:4ZZCOU7L3CZQBLM5T672VGVFMI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Interactions of keV sterile neutrinos with matter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Alexander Kusenko (UCLA/Tokyo), Shin'ichiro Ando (Caltech)","submitted_at":"2010-01-29T18:34:18Z","abstract_excerpt":"A sterile neutrino with mass of several keV is a well-motivated dark-matter candidate, and it can also explain the observed velocities of pulsars via anisotropic emission of sterile neutrinos from a cooling neutron star. We discuss the interactions of such relic particles with matter and comment on the prospects of future direct detection experiments. A relic sterile neutrino can interact, via sterile-active mixing, with matter fermions by means of electroweak currents, with the final state containing a relativistic active neutrino. The recoil momentum impacted onto a matter fermion is determi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1001.5273","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":"2026-05-18T03:58:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R5iz4VgEa5D0vja8YT5f6aAMo9Dh7MD7cFu7l1FkVMrCj24UNi0rHo6zsc/dsfN2DHOvJvbtCtpFjZ8vrCHTDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T19:56:04.358769Z"},"content_sha256":"d7260ee7818cda4fffe42070b0175ca0128d528e26c92742c79c3ee4d659e919","schema_version":"1.0","event_id":"sha256:d7260ee7818cda4fffe42070b0175ca0128d528e26c92742c79c3ee4d659e919"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4ZZCOU7L3CZQBLM5T672VGVFMI/bundle.json","state_url":"https://pith.science/pith/4ZZCOU7L3CZQBLM5T672VGVFMI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4ZZCOU7L3CZQBLM5T672VGVFMI/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":"2026-06-06T19:56:04Z","links":{"resolver":"https://pith.science/pith/4ZZCOU7L3CZQBLM5T672VGVFMI","bundle":"https://pith.science/pith/4ZZCOU7L3CZQBLM5T672VGVFMI/bundle.json","state":"https://pith.science/pith/4ZZCOU7L3CZQBLM5T672VGVFMI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4ZZCOU7L3CZQBLM5T672VGVFMI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:4ZZCOU7L3CZQBLM5T672VGVFMI","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":"d61b153482ceb5294cfd47f6b5fbac12e8838558789e64ee04d858273405431c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2010-01-29T18:34:18Z","title_canon_sha256":"b2e27b17d708a19578d36098f51287c168c23f21f654bcb45103f35e3ea3bc70"},"schema_version":"1.0","source":{"id":"1001.5273","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1001.5273","created_at":"2026-05-18T03:58:51Z"},{"alias_kind":"arxiv_version","alias_value":"1001.5273v1","created_at":"2026-05-18T03:58:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1001.5273","created_at":"2026-05-18T03:58:51Z"},{"alias_kind":"pith_short_12","alias_value":"4ZZCOU7L3CZQ","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_16","alias_value":"4ZZCOU7L3CZQBLM5","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_8","alias_value":"4ZZCOU7L","created_at":"2026-05-18T12:26:04Z"}],"graph_snapshots":[{"event_id":"sha256:d7260ee7818cda4fffe42070b0175ca0128d528e26c92742c79c3ee4d659e919","target":"graph","created_at":"2026-05-18T03:58:51Z","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 sterile neutrino with mass of several keV is a well-motivated dark-matter candidate, and it can also explain the observed velocities of pulsars via anisotropic emission of sterile neutrinos from a cooling neutron star. We discuss the interactions of such relic particles with matter and comment on the prospects of future direct detection experiments. A relic sterile neutrino can interact, via sterile-active mixing, with matter fermions by means of electroweak currents, with the final state containing a relativistic active neutrino. The recoil momentum impacted onto a matter fermion is determi","authors_text":"Alexander Kusenko (UCLA/Tokyo), Shin'ichiro Ando (Caltech)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2010-01-29T18:34:18Z","title":"Interactions of keV sterile neutrinos with matter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1001.5273","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":"sha256:7d9794a3e1b5f7b86f535e21d4df9c442b4e43ac2e4d3811d13a0251496306b1","target":"record","created_at":"2026-05-18T03:58:51Z","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":"d61b153482ceb5294cfd47f6b5fbac12e8838558789e64ee04d858273405431c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2010-01-29T18:34:18Z","title_canon_sha256":"b2e27b17d708a19578d36098f51287c168c23f21f654bcb45103f35e3ea3bc70"},"schema_version":"1.0","source":{"id":"1001.5273","kind":"arxiv","version":1}},"canonical_sha256":"e6722753ebd8b300ad9d9fbfaa9aa5622121dcf9cec1cd4da5f97da0208a9714","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e6722753ebd8b300ad9d9fbfaa9aa5622121dcf9cec1cd4da5f97da0208a9714","first_computed_at":"2026-05-18T03:58:51.843183Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:58:51.843183Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uTy1A1Ee+KZPV0o1w5e1cicDBpA2ou8AFyDiY9j/rNTO9ehvWzl8hrz+Fvmaqs8p7yxkvrU/YaWeo/S3pRYXCA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:58:51.845142Z","signed_message":"canonical_sha256_bytes"},"source_id":"1001.5273","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7d9794a3e1b5f7b86f535e21d4df9c442b4e43ac2e4d3811d13a0251496306b1","sha256:d7260ee7818cda4fffe42070b0175ca0128d528e26c92742c79c3ee4d659e919"],"state_sha256":"a66549989f163bc028d5a30a022447b14f219923b3bf65f0576fa9795dddc70b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ABeByfLmzNPDbieFGqyZ7agB8q2hbz4QtG8jj4BZ/ifHXVN3Vk0/b8xAPM8w2zSZ3E/oGvT7/BWZMZUovHhLBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T19:56:04.362083Z","bundle_sha256":"f2e4f6492c672325958089e8d41827c9a7556b2fe1afe07ce08443ece29f48e5"}}