{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:XP3SWVRIQ2E7SQACDCHVNEQXWZ","short_pith_number":"pith:XP3SWVRI","canonical_record":{"source":{"id":"1708.00226","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2017-08-01T09:48:40Z","cross_cats_sorted":["hep-ex","nucl-ex"],"title_canon_sha256":"a72c228fbce66c54decbdd081eb0216d3e33d516df3ffab2510e653f1134817e","abstract_canon_sha256":"32f5e505ca34e0d654a14f51d7d45b16a3e294a6af670748e194a6dbcc39dd9d"},"schema_version":"1.0"},"canonical_sha256":"bbf72b56288689f94002188f569217b641ad07cdf57a00b3f3cd0408d53cc661","source":{"kind":"arxiv","id":"1708.00226","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.00226","created_at":"2026-05-18T00:23:45Z"},{"alias_kind":"arxiv_version","alias_value":"1708.00226v1","created_at":"2026-05-18T00:23:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.00226","created_at":"2026-05-18T00:23:45Z"},{"alias_kind":"pith_short_12","alias_value":"XP3SWVRIQ2E7","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_16","alias_value":"XP3SWVRIQ2E7SQAC","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_8","alias_value":"XP3SWVRI","created_at":"2026-05-18T12:31:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:XP3SWVRIQ2E7SQACDCHVNEQXWZ","target":"record","payload":{"canonical_record":{"source":{"id":"1708.00226","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2017-08-01T09:48:40Z","cross_cats_sorted":["hep-ex","nucl-ex"],"title_canon_sha256":"a72c228fbce66c54decbdd081eb0216d3e33d516df3ffab2510e653f1134817e","abstract_canon_sha256":"32f5e505ca34e0d654a14f51d7d45b16a3e294a6af670748e194a6dbcc39dd9d"},"schema_version":"1.0"},"canonical_sha256":"bbf72b56288689f94002188f569217b641ad07cdf57a00b3f3cd0408d53cc661","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:23:45.505739Z","signature_b64":"pIwgiKR62ISZWtOKniO4AeqcP554qjZ80SIkL/SqxVJn9Wf6d6Yvq4y+E9tkKUqKeatDqP8k4bpAr0rKl5t3DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bbf72b56288689f94002188f569217b641ad07cdf57a00b3f3cd0408d53cc661","last_reissued_at":"2026-05-18T00:23:45.505194Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:23:45.505194Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1708.00226","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":"2026-05-18T00:23:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VI9hUzBwUFmytoUvrYPehspcg9QKgLqgD3GP0ORcpzRv57CFhuoNs1TBYVDZhAk7iOhjT/Xk8JE6D5LWgXJ+AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T16:58:35.828378Z"},"content_sha256":"969e4ca4795065ab25edde05274c266181ec588dd9e270c14e443a69b5c8d611","schema_version":"1.0","event_id":"sha256:969e4ca4795065ab25edde05274c266181ec588dd9e270c14e443a69b5c8d611"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:XP3SWVRIQ2E7SQACDCHVNEQXWZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Mitigation of $^{42}$Ar/$^{42}$K background for the GERDA Phase II experiment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","nucl-ex"],"primary_cat":"physics.ins-det","authors_text":"A. Gangapshev, A. Klimenko, A. Lazzaro, A. Lubashevskiy, A. Smolnikov, B. Lehnert, D. Budj\\'a\\v{s}, G. Zuzel, K. Gusev, K. Pelczar, M. Agostini, M. Heisel, M. Walter, S. Sch\\\"onert","submitted_at":"2017-08-01T09:48:40Z","abstract_excerpt":"Background coming from the $^{42}$Ar decay chain is considered to be one of the most relevant for the GERDA experiment, which aims to search of the neutrinoless double beta decay of $^{76}$Ge. The sensitivity strongly relies on the absence of background around the Q-value of the decay. Background coming from $^{42}$K, a progeny of $^{42}$Ar, can contribute to that background via electrons from the continuous spectrum with an endpoint of 3.5 MeV. Research and development on the suppression methods targeting this source of background were performed at the low-background test facility LArGe. It w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.00226","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":"2026-05-18T00:23:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PAiLbgoq5WkUtVdR/6KR9rJjvbRNTvjtQGvxKjywYl4arR/2thE2i6XIYjYnJuMaiyBLebFl+phoaC1Rs9C/AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T16:58:35.828729Z"},"content_sha256":"9708254dfc7f115800d17dadc88c7d2ece4e868e3e8d2952491d1502ff9baa14","schema_version":"1.0","event_id":"sha256:9708254dfc7f115800d17dadc88c7d2ece4e868e3e8d2952491d1502ff9baa14"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XP3SWVRIQ2E7SQACDCHVNEQXWZ/bundle.json","state_url":"https://pith.science/pith/XP3SWVRIQ2E7SQACDCHVNEQXWZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XP3SWVRIQ2E7SQACDCHVNEQXWZ/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":"2026-06-01T16:58:35Z","links":{"resolver":"https://pith.science/pith/XP3SWVRIQ2E7SQACDCHVNEQXWZ","bundle":"https://pith.science/pith/XP3SWVRIQ2E7SQACDCHVNEQXWZ/bundle.json","state":"https://pith.science/pith/XP3SWVRIQ2E7SQACDCHVNEQXWZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XP3SWVRIQ2E7SQACDCHVNEQXWZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:XP3SWVRIQ2E7SQACDCHVNEQXWZ","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":"32f5e505ca34e0d654a14f51d7d45b16a3e294a6af670748e194a6dbcc39dd9d","cross_cats_sorted":["hep-ex","nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2017-08-01T09:48:40Z","title_canon_sha256":"a72c228fbce66c54decbdd081eb0216d3e33d516df3ffab2510e653f1134817e"},"schema_version":"1.0","source":{"id":"1708.00226","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.00226","created_at":"2026-05-18T00:23:45Z"},{"alias_kind":"arxiv_version","alias_value":"1708.00226v1","created_at":"2026-05-18T00:23:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.00226","created_at":"2026-05-18T00:23:45Z"},{"alias_kind":"pith_short_12","alias_value":"XP3SWVRIQ2E7","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_16","alias_value":"XP3SWVRIQ2E7SQAC","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_8","alias_value":"XP3SWVRI","created_at":"2026-05-18T12:31:56Z"}],"graph_snapshots":[{"event_id":"sha256:9708254dfc7f115800d17dadc88c7d2ece4e868e3e8d2952491d1502ff9baa14","target":"graph","created_at":"2026-05-18T00:23:45Z","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":"Background coming from the $^{42}$Ar decay chain is considered to be one of the most relevant for the GERDA experiment, which aims to search of the neutrinoless double beta decay of $^{76}$Ge. The sensitivity strongly relies on the absence of background around the Q-value of the decay. Background coming from $^{42}$K, a progeny of $^{42}$Ar, can contribute to that background via electrons from the continuous spectrum with an endpoint of 3.5 MeV. Research and development on the suppression methods targeting this source of background were performed at the low-background test facility LArGe. It w","authors_text":"A. Gangapshev, A. Klimenko, A. Lazzaro, A. Lubashevskiy, A. Smolnikov, B. Lehnert, D. Budj\\'a\\v{s}, G. Zuzel, K. Gusev, K. Pelczar, M. Agostini, M. Heisel, M. Walter, S. Sch\\\"onert","cross_cats":["hep-ex","nucl-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2017-08-01T09:48:40Z","title":"Mitigation of $^{42}$Ar/$^{42}$K background for the GERDA Phase II experiment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.00226","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":"sha256:969e4ca4795065ab25edde05274c266181ec588dd9e270c14e443a69b5c8d611","target":"record","created_at":"2026-05-18T00:23:45Z","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":"32f5e505ca34e0d654a14f51d7d45b16a3e294a6af670748e194a6dbcc39dd9d","cross_cats_sorted":["hep-ex","nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2017-08-01T09:48:40Z","title_canon_sha256":"a72c228fbce66c54decbdd081eb0216d3e33d516df3ffab2510e653f1134817e"},"schema_version":"1.0","source":{"id":"1708.00226","kind":"arxiv","version":1}},"canonical_sha256":"bbf72b56288689f94002188f569217b641ad07cdf57a00b3f3cd0408d53cc661","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bbf72b56288689f94002188f569217b641ad07cdf57a00b3f3cd0408d53cc661","first_computed_at":"2026-05-18T00:23:45.505194Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:23:45.505194Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pIwgiKR62ISZWtOKniO4AeqcP554qjZ80SIkL/SqxVJn9Wf6d6Yvq4y+E9tkKUqKeatDqP8k4bpAr0rKl5t3DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:23:45.505739Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.00226","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:969e4ca4795065ab25edde05274c266181ec588dd9e270c14e443a69b5c8d611","sha256:9708254dfc7f115800d17dadc88c7d2ece4e868e3e8d2952491d1502ff9baa14"],"state_sha256":"baae05b55d921002ff9348397b4d358df5fa71c60e304696e0db49ae46dc5585"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VSsWtl/Eq4zLNz2WU8c7Q9e3338D0I/rEazsR0ms8HwuMC6o8fGlaVbtAcPW3+DoXekRZGe+gkBB6RZs7ovGBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T16:58:35.830589Z","bundle_sha256":"053ed21dcbc5c9ee1d10ae7a8cdfcd7c8898a26ed0c7bb1e186781aa077aea06"}}