{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:RIFWHQW3XRXFGNNDOOFCI2UVPR","short_pith_number":"pith:RIFWHQW3","canonical_record":{"source":{"id":"1601.01445","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-01-07T08:36:07Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"38a5240d91bb826ffaccecc0459f5d3405fc1b252018de9c93ce9f646cb6eb3c","abstract_canon_sha256":"53a3592e055f74f4f76ec1244e4cee4312a598e68d37be1b1f67e496dab18390"},"schema_version":"1.0"},"canonical_sha256":"8a0b63c2dbbc6e5335a3738a246a957c7c1b20f9738ce0448d38477aad9f759f","source":{"kind":"arxiv","id":"1601.01445","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.01445","created_at":"2026-05-18T01:12:05Z"},{"alias_kind":"arxiv_version","alias_value":"1601.01445v1","created_at":"2026-05-18T01:12:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.01445","created_at":"2026-05-18T01:12:05Z"},{"alias_kind":"pith_short_12","alias_value":"RIFWHQW3XRXF","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_16","alias_value":"RIFWHQW3XRXFGNND","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_8","alias_value":"RIFWHQW3","created_at":"2026-05-18T12:30:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:RIFWHQW3XRXFGNNDOOFCI2UVPR","target":"record","payload":{"canonical_record":{"source":{"id":"1601.01445","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-01-07T08:36:07Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"38a5240d91bb826ffaccecc0459f5d3405fc1b252018de9c93ce9f646cb6eb3c","abstract_canon_sha256":"53a3592e055f74f4f76ec1244e4cee4312a598e68d37be1b1f67e496dab18390"},"schema_version":"1.0"},"canonical_sha256":"8a0b63c2dbbc6e5335a3738a246a957c7c1b20f9738ce0448d38477aad9f759f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:12:05.400663Z","signature_b64":"ANUDg7gxmTzjrJa2lkD0+u6yrI2rfh2SGDGmWbk8zxl/+LmxVnLm7A1R6M09CCRdI8Gi7ogJMUu2Yw9ztegjCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8a0b63c2dbbc6e5335a3738a246a957c7c1b20f9738ce0448d38477aad9f759f","last_reissued_at":"2026-05-18T01:12:05.400107Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:12:05.400107Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1601.01445","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":"2026-05-18T01:12:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3lP8KAJp/TYX6GisPqUHB2U6zxQtzkP3dOjjMDzH0HaHxIT3q5icN7lgw32sp74tOwCqkcdOh/8lEx6X0FXtCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T18:00:35.659531Z"},"content_sha256":"47687b648bbda162ddc3aeb8ff1f2aec7a08fd3765d94bcc77201c22254faf2d","schema_version":"1.0","event_id":"sha256:47687b648bbda162ddc3aeb8ff1f2aec7a08fd3765d94bcc77201c22254faf2d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:RIFWHQW3XRXFGNNDOOFCI2UVPR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"TREX-DM: a low background Micromegas-based TPC for low-mass WIMP detection","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"physics.ins-det","authors_text":"A. Lagraba, A. Peiro, F. Aznar, F.J. Iguaz, G. Luzon, I.G. Irastorza, J.A. Garcia, J.F. Castel, J.G. Garza, S. Cebrian, T. Dafni","submitted_at":"2016-01-07T08:36:07Z","abstract_excerpt":"Dark Matter experiments are recently focusing their detection techniques in low-mass WIMPs, which requires the use of light elements and low energy threshold. In this context, we describe the TREX-DM experiment, a low background Micromegas-based TPC for low-mass WIMP detection. Its main goal is the operation of an active detection mass $\\sim$0.3 kg, with an energy threshold below 0.4 keVee and fully built with previously selected radiopure materials. This work describes the commissioning of the actual setup situated in a laboratory on surface and the updates needed for a possible physics run a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.01445","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":"2026-05-18T01:12:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SICcfmHwGbwLsw71Y+5+b8icG7S2KPyoe3J+OIwAqqXgAQJq3hQyF9ZO37sdmUxr/XFx+5EppAB6rsq61AUaBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T18:00:35.659874Z"},"content_sha256":"5ff1d656e5efcc5ebd792a3f311efd776bf4fdbe12fd3c4969c46fddf57c86d1","schema_version":"1.0","event_id":"sha256:5ff1d656e5efcc5ebd792a3f311efd776bf4fdbe12fd3c4969c46fddf57c86d1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RIFWHQW3XRXFGNNDOOFCI2UVPR/bundle.json","state_url":"https://pith.science/pith/RIFWHQW3XRXFGNNDOOFCI2UVPR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RIFWHQW3XRXFGNNDOOFCI2UVPR/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":"2026-06-04T18:00:35Z","links":{"resolver":"https://pith.science/pith/RIFWHQW3XRXFGNNDOOFCI2UVPR","bundle":"https://pith.science/pith/RIFWHQW3XRXFGNNDOOFCI2UVPR/bundle.json","state":"https://pith.science/pith/RIFWHQW3XRXFGNNDOOFCI2UVPR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RIFWHQW3XRXFGNNDOOFCI2UVPR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:RIFWHQW3XRXFGNNDOOFCI2UVPR","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":"53a3592e055f74f4f76ec1244e4cee4312a598e68d37be1b1f67e496dab18390","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-01-07T08:36:07Z","title_canon_sha256":"38a5240d91bb826ffaccecc0459f5d3405fc1b252018de9c93ce9f646cb6eb3c"},"schema_version":"1.0","source":{"id":"1601.01445","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.01445","created_at":"2026-05-18T01:12:05Z"},{"alias_kind":"arxiv_version","alias_value":"1601.01445v1","created_at":"2026-05-18T01:12:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.01445","created_at":"2026-05-18T01:12:05Z"},{"alias_kind":"pith_short_12","alias_value":"RIFWHQW3XRXF","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_16","alias_value":"RIFWHQW3XRXFGNND","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_8","alias_value":"RIFWHQW3","created_at":"2026-05-18T12:30:41Z"}],"graph_snapshots":[{"event_id":"sha256:5ff1d656e5efcc5ebd792a3f311efd776bf4fdbe12fd3c4969c46fddf57c86d1","target":"graph","created_at":"2026-05-18T01:12:05Z","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":"Dark Matter experiments are recently focusing their detection techniques in low-mass WIMPs, which requires the use of light elements and low energy threshold. In this context, we describe the TREX-DM experiment, a low background Micromegas-based TPC for low-mass WIMP detection. Its main goal is the operation of an active detection mass $\\sim$0.3 kg, with an energy threshold below 0.4 keVee and fully built with previously selected radiopure materials. This work describes the commissioning of the actual setup situated in a laboratory on surface and the updates needed for a possible physics run a","authors_text":"A. Lagraba, A. Peiro, F. Aznar, F.J. Iguaz, G. Luzon, I.G. Irastorza, J.A. Garcia, J.F. Castel, J.G. Garza, S. Cebrian, T. Dafni","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-01-07T08:36:07Z","title":"TREX-DM: a low background Micromegas-based TPC for low-mass WIMP detection"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.01445","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":"sha256:47687b648bbda162ddc3aeb8ff1f2aec7a08fd3765d94bcc77201c22254faf2d","target":"record","created_at":"2026-05-18T01:12:05Z","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":"53a3592e055f74f4f76ec1244e4cee4312a598e68d37be1b1f67e496dab18390","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-01-07T08:36:07Z","title_canon_sha256":"38a5240d91bb826ffaccecc0459f5d3405fc1b252018de9c93ce9f646cb6eb3c"},"schema_version":"1.0","source":{"id":"1601.01445","kind":"arxiv","version":1}},"canonical_sha256":"8a0b63c2dbbc6e5335a3738a246a957c7c1b20f9738ce0448d38477aad9f759f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8a0b63c2dbbc6e5335a3738a246a957c7c1b20f9738ce0448d38477aad9f759f","first_computed_at":"2026-05-18T01:12:05.400107Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:12:05.400107Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ANUDg7gxmTzjrJa2lkD0+u6yrI2rfh2SGDGmWbk8zxl/+LmxVnLm7A1R6M09CCRdI8Gi7ogJMUu2Yw9ztegjCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:12:05.400663Z","signed_message":"canonical_sha256_bytes"},"source_id":"1601.01445","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:47687b648bbda162ddc3aeb8ff1f2aec7a08fd3765d94bcc77201c22254faf2d","sha256:5ff1d656e5efcc5ebd792a3f311efd776bf4fdbe12fd3c4969c46fddf57c86d1"],"state_sha256":"d9e689d61289ac8c26a87a266bf95902f9c1b2de1f4892414d14d8e3de7604bf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S135HQxDdp9W/TrYMecsZvZ88f/ZbSMLD5hku8Dl4NkyZB4pKz7jbIxnApurdiCHjIV4lDWRpcReEyqIR0/XDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T18:00:35.661772Z","bundle_sha256":"5ab1df09fe20b5637f9ea3a5350aa990e5cbc9a953023f96f9ba3d96e9c39d0e"}}