{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:AEHOYR46XTEELTF3DKKIL2EIWG","short_pith_number":"pith:AEHOYR46","canonical_record":{"source":{"id":"1409.0894","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-09-02T21:19:03Z","cross_cats_sorted":["hep-ex","nucl-th"],"title_canon_sha256":"723e6ec3b30f37f21f50681c52cdbc70ea8d375c26bc0803e7edf2cf82f5d311","abstract_canon_sha256":"5068d09efcf1f07a47d104b5420b32a8e56e2c0e2be4a31785b27e5053761f4c"},"schema_version":"1.0"},"canonical_sha256":"010eec479ebcc845ccbb1a9485e888b19528a33bcd0e1c20f9c6797521d50fef","source":{"kind":"arxiv","id":"1409.0894","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.0894","created_at":"2026-05-18T02:43:00Z"},{"alias_kind":"arxiv_version","alias_value":"1409.0894v2","created_at":"2026-05-18T02:43:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.0894","created_at":"2026-05-18T02:43:00Z"},{"alias_kind":"pith_short_12","alias_value":"AEHOYR46XTEE","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"AEHOYR46XTEELTF3","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"AEHOYR46","created_at":"2026-05-18T12:28:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:AEHOYR46XTEELTF3DKKIL2EIWG","target":"record","payload":{"canonical_record":{"source":{"id":"1409.0894","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-09-02T21:19:03Z","cross_cats_sorted":["hep-ex","nucl-th"],"title_canon_sha256":"723e6ec3b30f37f21f50681c52cdbc70ea8d375c26bc0803e7edf2cf82f5d311","abstract_canon_sha256":"5068d09efcf1f07a47d104b5420b32a8e56e2c0e2be4a31785b27e5053761f4c"},"schema_version":"1.0"},"canonical_sha256":"010eec479ebcc845ccbb1a9485e888b19528a33bcd0e1c20f9c6797521d50fef","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:43:00.231027Z","signature_b64":"fB7cE3ZBSU8mF1h66Dv7jDHLSaKNZckCQrqNEPPNoMXUO6y3ktaKf3ed5coIVkGuskGjbP9yAR5T6lS3xmajBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"010eec479ebcc845ccbb1a9485e888b19528a33bcd0e1c20f9c6797521d50fef","last_reissued_at":"2026-05-18T02:43:00.230431Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:43:00.230431Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1409.0894","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":"2026-05-18T02:43:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FvO4lyBKNgAh9G121geEgNys/DnhMJUHe24DhjaxGU4JUCFOCOj1VC7+UNUUn8Cd0FWtc//FF1WJZC3A25HrDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T07:34:19.545067Z"},"content_sha256":"0603e04240763b4566866fad12c196bad5fbc01ae68b9b725a6e444e9e14c8fa","schema_version":"1.0","event_id":"sha256:0603e04240763b4566866fad12c196bad5fbc01ae68b9b725a6e444e9e14c8fa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:AEHOYR46XTEELTF3DKKIL2EIWG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"$^{163}$Ho based experiments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","nucl-th"],"primary_cat":"physics.ins-det","authors_text":"Loredana Gastaldo","submitted_at":"2014-09-02T21:19:03Z","abstract_excerpt":"The analysis of the endpoint region of the calorimetrically measured $^{163}$Ho electron capture spectrum is a very promising way to determine the mass of the electron neutrino. The achievable sensitivity of $^{163}$Ho-based experiments and the experimental challenges will be presented. Three large collaborations aim to develop large scale experiments able to reach sub-eV sensitivity. Presently pilot experiments are performed to demonstrate the possibility to calorimetrically measure high precision and high statistics $^{163}$Ho spectra. The different approaches as well as the state of the art"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.0894","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":"2026-05-18T02:43:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sMCkmhIH43PXzSycf3LyYUsYwdWTgUH1tOs5akBB0ohu9fCNhun24Wjw4V1qZ1lrdyo/izjMVY5JDA9L3P/MAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T07:34:19.545694Z"},"content_sha256":"beb4dc21412534b1b10f3390f8d0b1549a17991053849aab7f997a6acc8e4eb0","schema_version":"1.0","event_id":"sha256:beb4dc21412534b1b10f3390f8d0b1549a17991053849aab7f997a6acc8e4eb0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AEHOYR46XTEELTF3DKKIL2EIWG/bundle.json","state_url":"https://pith.science/pith/AEHOYR46XTEELTF3DKKIL2EIWG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AEHOYR46XTEELTF3DKKIL2EIWG/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":"2026-05-31T07:34:19Z","links":{"resolver":"https://pith.science/pith/AEHOYR46XTEELTF3DKKIL2EIWG","bundle":"https://pith.science/pith/AEHOYR46XTEELTF3DKKIL2EIWG/bundle.json","state":"https://pith.science/pith/AEHOYR46XTEELTF3DKKIL2EIWG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AEHOYR46XTEELTF3DKKIL2EIWG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:AEHOYR46XTEELTF3DKKIL2EIWG","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":"5068d09efcf1f07a47d104b5420b32a8e56e2c0e2be4a31785b27e5053761f4c","cross_cats_sorted":["hep-ex","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-09-02T21:19:03Z","title_canon_sha256":"723e6ec3b30f37f21f50681c52cdbc70ea8d375c26bc0803e7edf2cf82f5d311"},"schema_version":"1.0","source":{"id":"1409.0894","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.0894","created_at":"2026-05-18T02:43:00Z"},{"alias_kind":"arxiv_version","alias_value":"1409.0894v2","created_at":"2026-05-18T02:43:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.0894","created_at":"2026-05-18T02:43:00Z"},{"alias_kind":"pith_short_12","alias_value":"AEHOYR46XTEE","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"AEHOYR46XTEELTF3","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"AEHOYR46","created_at":"2026-05-18T12:28:19Z"}],"graph_snapshots":[{"event_id":"sha256:beb4dc21412534b1b10f3390f8d0b1549a17991053849aab7f997a6acc8e4eb0","target":"graph","created_at":"2026-05-18T02:43:00Z","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":"The analysis of the endpoint region of the calorimetrically measured $^{163}$Ho electron capture spectrum is a very promising way to determine the mass of the electron neutrino. The achievable sensitivity of $^{163}$Ho-based experiments and the experimental challenges will be presented. Three large collaborations aim to develop large scale experiments able to reach sub-eV sensitivity. Presently pilot experiments are performed to demonstrate the possibility to calorimetrically measure high precision and high statistics $^{163}$Ho spectra. The different approaches as well as the state of the art","authors_text":"Loredana Gastaldo","cross_cats":["hep-ex","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-09-02T21:19:03Z","title":"$^{163}$Ho based experiments"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.0894","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":"sha256:0603e04240763b4566866fad12c196bad5fbc01ae68b9b725a6e444e9e14c8fa","target":"record","created_at":"2026-05-18T02:43:00Z","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":"5068d09efcf1f07a47d104b5420b32a8e56e2c0e2be4a31785b27e5053761f4c","cross_cats_sorted":["hep-ex","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-09-02T21:19:03Z","title_canon_sha256":"723e6ec3b30f37f21f50681c52cdbc70ea8d375c26bc0803e7edf2cf82f5d311"},"schema_version":"1.0","source":{"id":"1409.0894","kind":"arxiv","version":2}},"canonical_sha256":"010eec479ebcc845ccbb1a9485e888b19528a33bcd0e1c20f9c6797521d50fef","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"010eec479ebcc845ccbb1a9485e888b19528a33bcd0e1c20f9c6797521d50fef","first_computed_at":"2026-05-18T02:43:00.230431Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:43:00.230431Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fB7cE3ZBSU8mF1h66Dv7jDHLSaKNZckCQrqNEPPNoMXUO6y3ktaKf3ed5coIVkGuskGjbP9yAR5T6lS3xmajBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:43:00.231027Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.0894","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0603e04240763b4566866fad12c196bad5fbc01ae68b9b725a6e444e9e14c8fa","sha256:beb4dc21412534b1b10f3390f8d0b1549a17991053849aab7f997a6acc8e4eb0"],"state_sha256":"aed36d86a503733618b64fb44e0b40757dc3468d7b91589c3c9e6b454d864671"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LikGSenspqmbB/ltQVmR192YLN6FPK6PceF3RoO61Vayay+cEiuwIaK4l4+qvRaQRJrMOWwlll9RKMnZOxV8Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T07:34:19.549273Z","bundle_sha256":"9c132cafc9b826e5429a92695cc5968c3d56f958825663396b20dda72dfb3bdb"}}