{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:KRXG4FTXC2ASLZDEQXJZH3TLB3","short_pith_number":"pith:KRXG4FTX","canonical_record":{"source":{"id":"1605.01283","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2016-05-04T13:58:00Z","cross_cats_sorted":["nucl-ex","physics.ins-det"],"title_canon_sha256":"301e37900461ded4bc25f00f27a570ede60f1469d1539fe8b4445343faee7839","abstract_canon_sha256":"a9dafe477d4e6f78c9335fa2cce4d89752d781ccd5a233ee0897fdf562e8965e"},"schema_version":"1.0"},"canonical_sha256":"546e6e1677168125e46485d393ee6b0ef6166baa4f5d9b07a81732036fb05e54","source":{"kind":"arxiv","id":"1605.01283","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.01283","created_at":"2026-05-18T01:15:37Z"},{"alias_kind":"arxiv_version","alias_value":"1605.01283v1","created_at":"2026-05-18T01:15:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.01283","created_at":"2026-05-18T01:15:37Z"},{"alias_kind":"pith_short_12","alias_value":"KRXG4FTXC2AS","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"KRXG4FTXC2ASLZDE","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"KRXG4FTX","created_at":"2026-05-18T12:30:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:KRXG4FTXC2ASLZDEQXJZH3TLB3","target":"record","payload":{"canonical_record":{"source":{"id":"1605.01283","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2016-05-04T13:58:00Z","cross_cats_sorted":["nucl-ex","physics.ins-det"],"title_canon_sha256":"301e37900461ded4bc25f00f27a570ede60f1469d1539fe8b4445343faee7839","abstract_canon_sha256":"a9dafe477d4e6f78c9335fa2cce4d89752d781ccd5a233ee0897fdf562e8965e"},"schema_version":"1.0"},"canonical_sha256":"546e6e1677168125e46485d393ee6b0ef6166baa4f5d9b07a81732036fb05e54","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:15:37.279830Z","signature_b64":"TcPDkrvqvNkuWQ/pzVwaVMe1EgjDp8iLSOa1W9C/FJlN3NfgVGBJCR6p9zexeOMwYOAfN9rf+bxaXZFEr961Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"546e6e1677168125e46485d393ee6b0ef6166baa4f5d9b07a81732036fb05e54","last_reissued_at":"2026-05-18T01:15:37.279075Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:15:37.279075Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1605.01283","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":"2026-05-18T01:15:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tOSzSF/A7pbmsBcFFpOChtevlOw45f09N18WBisUSW1StR1SRPkEDhTJwrh35Znzgns+X0MJ0frXrEm+jEO1CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T06:34:37.865661Z"},"content_sha256":"ed2370142571e62ea7000bb9e69dbcc213063993f87f118e8ac45eefcaa25a3a","schema_version":"1.0","event_id":"sha256:ed2370142571e62ea7000bb9e69dbcc213063993f87f118e8ac45eefcaa25a3a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:KRXG4FTXC2ASLZDEQXJZH3TLB3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Barometric pumping effect for radon-due neutron flux in underground laboratories","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex","physics.ins-det"],"primary_cat":"physics.geo-ph","authors_text":"D.M. Gromushkin, O.B. Shchegolev, V.P. Sulakov, V.V. Alekseenko, Yu.V. Stenkin","submitted_at":"2016-05-04T13:58:00Z","abstract_excerpt":"It is known that neutron background is a big problem for low-background experiments in underground Laboratories. Our global net of en-detectors sensitive to thermal neutrons includes the detectors running both on the surface and at different depths underground. We present here results obtained with the en-detector of 0.75 m^2 which is running more than 3 years in underground room at a depth of 25 m of water equivalent in Skobeltsyn Institute of Nuclear Physics, Moscow. Spontaneous increases in thermal neutron flux up to a factor of 3 were observed in delayed anti-correlation with barometric pr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.01283","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":"2026-05-18T01:15:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MsS5+DsYZ8TRa8LEeOFYZgiphgzh2tOj+RtJxIbZuLBQ3UY5/luewnz23uhduP/eD2U70Tqun6NgdU8ZdkH7AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T06:34:37.866390Z"},"content_sha256":"c75110379f2386be7b525e5890ee3139090438faffd3eebe218242fe76b24a49","schema_version":"1.0","event_id":"sha256:c75110379f2386be7b525e5890ee3139090438faffd3eebe218242fe76b24a49"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KRXG4FTXC2ASLZDEQXJZH3TLB3/bundle.json","state_url":"https://pith.science/pith/KRXG4FTXC2ASLZDEQXJZH3TLB3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KRXG4FTXC2ASLZDEQXJZH3TLB3/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":"2026-05-26T06:34:37Z","links":{"resolver":"https://pith.science/pith/KRXG4FTXC2ASLZDEQXJZH3TLB3","bundle":"https://pith.science/pith/KRXG4FTXC2ASLZDEQXJZH3TLB3/bundle.json","state":"https://pith.science/pith/KRXG4FTXC2ASLZDEQXJZH3TLB3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KRXG4FTXC2ASLZDEQXJZH3TLB3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:KRXG4FTXC2ASLZDEQXJZH3TLB3","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":"a9dafe477d4e6f78c9335fa2cce4d89752d781ccd5a233ee0897fdf562e8965e","cross_cats_sorted":["nucl-ex","physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2016-05-04T13:58:00Z","title_canon_sha256":"301e37900461ded4bc25f00f27a570ede60f1469d1539fe8b4445343faee7839"},"schema_version":"1.0","source":{"id":"1605.01283","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.01283","created_at":"2026-05-18T01:15:37Z"},{"alias_kind":"arxiv_version","alias_value":"1605.01283v1","created_at":"2026-05-18T01:15:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.01283","created_at":"2026-05-18T01:15:37Z"},{"alias_kind":"pith_short_12","alias_value":"KRXG4FTXC2AS","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"KRXG4FTXC2ASLZDE","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"KRXG4FTX","created_at":"2026-05-18T12:30:29Z"}],"graph_snapshots":[{"event_id":"sha256:c75110379f2386be7b525e5890ee3139090438faffd3eebe218242fe76b24a49","target":"graph","created_at":"2026-05-18T01:15:37Z","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":"It is known that neutron background is a big problem for low-background experiments in underground Laboratories. Our global net of en-detectors sensitive to thermal neutrons includes the detectors running both on the surface and at different depths underground. We present here results obtained with the en-detector of 0.75 m^2 which is running more than 3 years in underground room at a depth of 25 m of water equivalent in Skobeltsyn Institute of Nuclear Physics, Moscow. Spontaneous increases in thermal neutron flux up to a factor of 3 were observed in delayed anti-correlation with barometric pr","authors_text":"D.M. Gromushkin, O.B. Shchegolev, V.P. Sulakov, V.V. Alekseenko, Yu.V. Stenkin","cross_cats":["nucl-ex","physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2016-05-04T13:58:00Z","title":"Barometric pumping effect for radon-due neutron flux in underground laboratories"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.01283","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:ed2370142571e62ea7000bb9e69dbcc213063993f87f118e8ac45eefcaa25a3a","target":"record","created_at":"2026-05-18T01:15:37Z","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":"a9dafe477d4e6f78c9335fa2cce4d89752d781ccd5a233ee0897fdf562e8965e","cross_cats_sorted":["nucl-ex","physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2016-05-04T13:58:00Z","title_canon_sha256":"301e37900461ded4bc25f00f27a570ede60f1469d1539fe8b4445343faee7839"},"schema_version":"1.0","source":{"id":"1605.01283","kind":"arxiv","version":1}},"canonical_sha256":"546e6e1677168125e46485d393ee6b0ef6166baa4f5d9b07a81732036fb05e54","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"546e6e1677168125e46485d393ee6b0ef6166baa4f5d9b07a81732036fb05e54","first_computed_at":"2026-05-18T01:15:37.279075Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:15:37.279075Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TcPDkrvqvNkuWQ/pzVwaVMe1EgjDp8iLSOa1W9C/FJlN3NfgVGBJCR6p9zexeOMwYOAfN9rf+bxaXZFEr961Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:15:37.279830Z","signed_message":"canonical_sha256_bytes"},"source_id":"1605.01283","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ed2370142571e62ea7000bb9e69dbcc213063993f87f118e8ac45eefcaa25a3a","sha256:c75110379f2386be7b525e5890ee3139090438faffd3eebe218242fe76b24a49"],"state_sha256":"5802daf510122df8820148f86c178599d9d4aab875b3bfa175653a03804494ef"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8MG1b0lOhKNV6Nej6fpSkyCcIkXQB3wpGSnVAT7o83UMfz439U/1uwNs7T5+ROb691JbsEXKr5X+aUYFZ4GvDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T06:34:37.870184Z","bundle_sha256":"3b8f152ca5d3571b848725e80e6ddf92a88d7dbf6b420b3cf4a074a5a1467fdc"}}