{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:STPXDKAUD4HYOMYQYW5WKXGHL4","short_pith_number":"pith:STPXDKAU","canonical_record":{"source":{"id":"1502.05915","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-02-20T16:11:36Z","cross_cats_sorted":[],"title_canon_sha256":"0863620fe8acf48e5faeb5a869d5a416bfe028020c0f6b25315b1f526dca1653","abstract_canon_sha256":"e20640d50915f063f9d0cabe315963da7180bcece6ffc2a6146be63cbc7182eb"},"schema_version":"1.0"},"canonical_sha256":"94df71a8141f0f873310c5bb655cc75f2605915b2b17b78fe84b548852786450","source":{"kind":"arxiv","id":"1502.05915","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.05915","created_at":"2026-05-18T01:35:34Z"},{"alias_kind":"arxiv_version","alias_value":"1502.05915v2","created_at":"2026-05-18T01:35:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.05915","created_at":"2026-05-18T01:35:34Z"},{"alias_kind":"pith_short_12","alias_value":"STPXDKAUD4HY","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_16","alias_value":"STPXDKAUD4HYOMYQ","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_8","alias_value":"STPXDKAU","created_at":"2026-05-18T12:29:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:STPXDKAUD4HYOMYQYW5WKXGHL4","target":"record","payload":{"canonical_record":{"source":{"id":"1502.05915","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-02-20T16:11:36Z","cross_cats_sorted":[],"title_canon_sha256":"0863620fe8acf48e5faeb5a869d5a416bfe028020c0f6b25315b1f526dca1653","abstract_canon_sha256":"e20640d50915f063f9d0cabe315963da7180bcece6ffc2a6146be63cbc7182eb"},"schema_version":"1.0"},"canonical_sha256":"94df71a8141f0f873310c5bb655cc75f2605915b2b17b78fe84b548852786450","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:35:34.969249Z","signature_b64":"3wSN7ESe4mRLaF/5j3vYYCLMGtnGx5jp0r6nMWjm9dU/xMxXsZLDlFmgY40MCEy0TtSzH5cUXOdEHznZH3eSCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"94df71a8141f0f873310c5bb655cc75f2605915b2b17b78fe84b548852786450","last_reissued_at":"2026-05-18T01:35:34.968739Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:35:34.968739Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1502.05915","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":"2026-05-18T01:35:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bDqbpzQj/7WE4oUnWxK2oV2IBGsPXMitSQUQwnp/xDCZfGJqGFPpKL1o1HSQ7drWdhgPIyK+SOFkH8m/T8W4Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T17:00:31.828703Z"},"content_sha256":"11dc604499f22ecb3391e400524b4c5e6cb652b668d404f347bfe5435d8fdaf7","schema_version":"1.0","event_id":"sha256:11dc604499f22ecb3391e400524b4c5e6cb652b668d404f347bfe5435d8fdaf7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:STPXDKAUD4HYOMYQYW5WKXGHL4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Testing sterile neutrino extensions of the Standard Model at future lepton colliders","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Oliver Fischer, Stefan Antusch","submitted_at":"2015-02-20T16:11:36Z","abstract_excerpt":"Extending the Standard Model (SM) with sterile ('right-handed') neutrinos is one of the best motivated ways to account for the observed neutrino masses. We discuss the expected sensitivity of future lepton collider experiments for probing such extensions. An interesting testable scenario is given by 'symmetry protected seesaw models', which theoretically allow for sterile neutrino masses around the electroweak scale with up to order one mixings with the light (SM) neutrinos. In addition to indirect tests, e.g. via electroweak precision observables, sterile neutrinos with masses around the elec"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.05915","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":"2026-05-18T01:35:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"90OibqHB6qB7ma2dTkqtkjH/J6Ws1liuyV4cg0MAcT/6z2QYliow93uZHXdxtJyrkxo8nndq9kH5hRMSQqXfBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T17:00:31.829415Z"},"content_sha256":"af1ce5ff600551be4b9d9688fd6850652d039feb79ce2bb5585787cf4ffd3897","schema_version":"1.0","event_id":"sha256:af1ce5ff600551be4b9d9688fd6850652d039feb79ce2bb5585787cf4ffd3897"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/STPXDKAUD4HYOMYQYW5WKXGHL4/bundle.json","state_url":"https://pith.science/pith/STPXDKAUD4HYOMYQYW5WKXGHL4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/STPXDKAUD4HYOMYQYW5WKXGHL4/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":"2026-05-25T17:00:31Z","links":{"resolver":"https://pith.science/pith/STPXDKAUD4HYOMYQYW5WKXGHL4","bundle":"https://pith.science/pith/STPXDKAUD4HYOMYQYW5WKXGHL4/bundle.json","state":"https://pith.science/pith/STPXDKAUD4HYOMYQYW5WKXGHL4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/STPXDKAUD4HYOMYQYW5WKXGHL4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:STPXDKAUD4HYOMYQYW5WKXGHL4","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":"e20640d50915f063f9d0cabe315963da7180bcece6ffc2a6146be63cbc7182eb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-02-20T16:11:36Z","title_canon_sha256":"0863620fe8acf48e5faeb5a869d5a416bfe028020c0f6b25315b1f526dca1653"},"schema_version":"1.0","source":{"id":"1502.05915","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.05915","created_at":"2026-05-18T01:35:34Z"},{"alias_kind":"arxiv_version","alias_value":"1502.05915v2","created_at":"2026-05-18T01:35:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.05915","created_at":"2026-05-18T01:35:34Z"},{"alias_kind":"pith_short_12","alias_value":"STPXDKAUD4HY","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_16","alias_value":"STPXDKAUD4HYOMYQ","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_8","alias_value":"STPXDKAU","created_at":"2026-05-18T12:29:42Z"}],"graph_snapshots":[{"event_id":"sha256:af1ce5ff600551be4b9d9688fd6850652d039feb79ce2bb5585787cf4ffd3897","target":"graph","created_at":"2026-05-18T01:35:34Z","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":"Extending the Standard Model (SM) with sterile ('right-handed') neutrinos is one of the best motivated ways to account for the observed neutrino masses. We discuss the expected sensitivity of future lepton collider experiments for probing such extensions. An interesting testable scenario is given by 'symmetry protected seesaw models', which theoretically allow for sterile neutrino masses around the electroweak scale with up to order one mixings with the light (SM) neutrinos. In addition to indirect tests, e.g. via electroweak precision observables, sterile neutrinos with masses around the elec","authors_text":"Oliver Fischer, Stefan Antusch","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-02-20T16:11:36Z","title":"Testing sterile neutrino extensions of the Standard Model at future lepton colliders"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.05915","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":"sha256:11dc604499f22ecb3391e400524b4c5e6cb652b668d404f347bfe5435d8fdaf7","target":"record","created_at":"2026-05-18T01:35:34Z","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":"e20640d50915f063f9d0cabe315963da7180bcece6ffc2a6146be63cbc7182eb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-02-20T16:11:36Z","title_canon_sha256":"0863620fe8acf48e5faeb5a869d5a416bfe028020c0f6b25315b1f526dca1653"},"schema_version":"1.0","source":{"id":"1502.05915","kind":"arxiv","version":2}},"canonical_sha256":"94df71a8141f0f873310c5bb655cc75f2605915b2b17b78fe84b548852786450","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"94df71a8141f0f873310c5bb655cc75f2605915b2b17b78fe84b548852786450","first_computed_at":"2026-05-18T01:35:34.968739Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:35:34.968739Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3wSN7ESe4mRLaF/5j3vYYCLMGtnGx5jp0r6nMWjm9dU/xMxXsZLDlFmgY40MCEy0TtSzH5cUXOdEHznZH3eSCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:35:34.969249Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.05915","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:11dc604499f22ecb3391e400524b4c5e6cb652b668d404f347bfe5435d8fdaf7","sha256:af1ce5ff600551be4b9d9688fd6850652d039feb79ce2bb5585787cf4ffd3897"],"state_sha256":"79c98d2fbf8405c1c8acdc8582835977bb91e1ecd032d6dd89a002b92e8deff7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G2qbtwJKH+JZZSPhYqP8+9i3VSE8A6FerMWo7jO+ng2KRvdNPT4FAynjl3/Sv3hfLLF339dgFpMFo1m+ka7QBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T17:00:31.833225Z","bundle_sha256":"6600ef2a0b10955342b2bc04012c0475a7d66a15bf63859157039b0334eb36b8"}}