{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:REZRVZHALM3HFKYXKLIEH2K5EH","short_pith_number":"pith:REZRVZHA","canonical_record":{"source":{"id":"1504.08330","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-04-30T18:26:58Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"89a8082a089dc54dda5aba865f9b959510a5d9bab7c33b876f44447d7a018ba1","abstract_canon_sha256":"be3d0c2092c989750811961118564261b712f8a87700473aa6ea52787630a4eb"},"schema_version":"1.0"},"canonical_sha256":"89331ae4e05b3672ab1752d043e95d21f410697e04ecf053797f31530a83ebdd","source":{"kind":"arxiv","id":"1504.08330","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.08330","created_at":"2026-05-18T02:17:22Z"},{"alias_kind":"arxiv_version","alias_value":"1504.08330v1","created_at":"2026-05-18T02:17:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.08330","created_at":"2026-05-18T02:17:22Z"},{"alias_kind":"pith_short_12","alias_value":"REZRVZHALM3H","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"REZRVZHALM3HFKYX","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"REZRVZHA","created_at":"2026-05-18T12:29:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:REZRVZHALM3HFKYXKLIEH2K5EH","target":"record","payload":{"canonical_record":{"source":{"id":"1504.08330","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-04-30T18:26:58Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"89a8082a089dc54dda5aba865f9b959510a5d9bab7c33b876f44447d7a018ba1","abstract_canon_sha256":"be3d0c2092c989750811961118564261b712f8a87700473aa6ea52787630a4eb"},"schema_version":"1.0"},"canonical_sha256":"89331ae4e05b3672ab1752d043e95d21f410697e04ecf053797f31530a83ebdd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:17:22.622517Z","signature_b64":"iEEMoyPIXDofKqZ+yX2ni/0Z02Gk8hd1y7KMLnWuUFHOzRY6YA0F8d4xlhbIsUpWGK2O+2zc7nrz0/mkfMvoDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"89331ae4e05b3672ab1752d043e95d21f410697e04ecf053797f31530a83ebdd","last_reissued_at":"2026-05-18T02:17:22.621900Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:17:22.621900Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1504.08330","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":"2026-05-18T02:17:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MrxeeSodinFq4cW8RzmY1WrAJ7RC++Wk1QgV5LfBICkqHeW8Mg1lmtUWKpiFGfK17lN6WgB13zYs0ea0OKy1BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T18:19:36.063127Z"},"content_sha256":"4ea41dc8e5126e9b3e90f0feb502fc2adccc7bbe7deccb934da335d646212072","schema_version":"1.0","event_id":"sha256:4ea41dc8e5126e9b3e90f0feb502fc2adccc7bbe7deccb934da335d646212072"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:REZRVZHALM3HFKYXKLIEH2K5EH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Prospects for CHIPS (R&D of Water Cherenkov Detectors in Mine Pits)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"physics.ins-det","authors_text":"Karol Lang","submitted_at":"2015-04-30T18:26:58Z","abstract_excerpt":"CHIPS is an R&D program focused on designing and constructing a cost-effective large water Cherenkov detector (WCD) to study neutrino oscillations using accelerator beams. Traditional WCD's with a low energy threshold have been built in special large underground caverns. Civil construction of such facilities is costly and the excavation phase significantly delays the detector installation although, in the end, it offers a well-shielded apparatus with versatile physics program. Using concepts developed for the LBNE WCD (arXiv:1204.2295), we propose to submerge a detector in a deep water reservo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.08330","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":"2026-05-18T02:17:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qJNrhNS9rUXloOS9wtSXrxnKUN7pmIkeLwheHqqZgqQiFgdm4X5GyQKqi+qlDq/DDbAymIe+u2lEIJWzRkIKDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T18:19:36.063782Z"},"content_sha256":"21806856b15280c95e42074b3307a85a35aa896bb95c5ca787968671a9fcc200","schema_version":"1.0","event_id":"sha256:21806856b15280c95e42074b3307a85a35aa896bb95c5ca787968671a9fcc200"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/REZRVZHALM3HFKYXKLIEH2K5EH/bundle.json","state_url":"https://pith.science/pith/REZRVZHALM3HFKYXKLIEH2K5EH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/REZRVZHALM3HFKYXKLIEH2K5EH/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":"2026-06-07T18:19:36Z","links":{"resolver":"https://pith.science/pith/REZRVZHALM3HFKYXKLIEH2K5EH","bundle":"https://pith.science/pith/REZRVZHALM3HFKYXKLIEH2K5EH/bundle.json","state":"https://pith.science/pith/REZRVZHALM3HFKYXKLIEH2K5EH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/REZRVZHALM3HFKYXKLIEH2K5EH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:REZRVZHALM3HFKYXKLIEH2K5EH","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":"be3d0c2092c989750811961118564261b712f8a87700473aa6ea52787630a4eb","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-04-30T18:26:58Z","title_canon_sha256":"89a8082a089dc54dda5aba865f9b959510a5d9bab7c33b876f44447d7a018ba1"},"schema_version":"1.0","source":{"id":"1504.08330","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.08330","created_at":"2026-05-18T02:17:22Z"},{"alias_kind":"arxiv_version","alias_value":"1504.08330v1","created_at":"2026-05-18T02:17:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.08330","created_at":"2026-05-18T02:17:22Z"},{"alias_kind":"pith_short_12","alias_value":"REZRVZHALM3H","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"REZRVZHALM3HFKYX","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"REZRVZHA","created_at":"2026-05-18T12:29:39Z"}],"graph_snapshots":[{"event_id":"sha256:21806856b15280c95e42074b3307a85a35aa896bb95c5ca787968671a9fcc200","target":"graph","created_at":"2026-05-18T02:17:22Z","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":"CHIPS is an R&D program focused on designing and constructing a cost-effective large water Cherenkov detector (WCD) to study neutrino oscillations using accelerator beams. Traditional WCD's with a low energy threshold have been built in special large underground caverns. Civil construction of such facilities is costly and the excavation phase significantly delays the detector installation although, in the end, it offers a well-shielded apparatus with versatile physics program. Using concepts developed for the LBNE WCD (arXiv:1204.2295), we propose to submerge a detector in a deep water reservo","authors_text":"Karol Lang","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-04-30T18:26:58Z","title":"Prospects for CHIPS (R&D of Water Cherenkov Detectors in Mine Pits)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.08330","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":"sha256:4ea41dc8e5126e9b3e90f0feb502fc2adccc7bbe7deccb934da335d646212072","target":"record","created_at":"2026-05-18T02:17:22Z","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":"be3d0c2092c989750811961118564261b712f8a87700473aa6ea52787630a4eb","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-04-30T18:26:58Z","title_canon_sha256":"89a8082a089dc54dda5aba865f9b959510a5d9bab7c33b876f44447d7a018ba1"},"schema_version":"1.0","source":{"id":"1504.08330","kind":"arxiv","version":1}},"canonical_sha256":"89331ae4e05b3672ab1752d043e95d21f410697e04ecf053797f31530a83ebdd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"89331ae4e05b3672ab1752d043e95d21f410697e04ecf053797f31530a83ebdd","first_computed_at":"2026-05-18T02:17:22.621900Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:17:22.621900Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iEEMoyPIXDofKqZ+yX2ni/0Z02Gk8hd1y7KMLnWuUFHOzRY6YA0F8d4xlhbIsUpWGK2O+2zc7nrz0/mkfMvoDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:17:22.622517Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.08330","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4ea41dc8e5126e9b3e90f0feb502fc2adccc7bbe7deccb934da335d646212072","sha256:21806856b15280c95e42074b3307a85a35aa896bb95c5ca787968671a9fcc200"],"state_sha256":"411ed0b776c1f473d66204e37697b1dcc4cd6910990136a97521fd34998857d5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lJWrghS5SPKjkyNqINORV9RlUu92yYR+3U0CWaJNI/Be2gjKFVzh5xoXJBNxafKVuHl0UzBetF8+04X+GbBrBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T18:19:36.067242Z","bundle_sha256":"6d61f9b70bb589b507baee830dbc624f9d0c9d802246c3a416df2ef5bc046beb"}}