{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:GVK6XW3ILZPG4JNDJYBB3AHGD2","short_pith_number":"pith:GVK6XW3I","canonical_record":{"source":{"id":"2410.16350","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2024-10-21T17:59:46Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"0dac2a56e853a96d53b26912dae630ee67ac3f87f76b93b5d7faa4d5dc7a6eb6","abstract_canon_sha256":"1ae17240abcdaebb17799fc89b17bfd17fd6674a6aeb581cefe6156241bee5c8"},"schema_version":"1.0"},"canonical_sha256":"3555ebdb685e5e6e25a34e021d80e61ebff85dc5c1304da732f3232e131a0b53","source":{"kind":"arxiv","id":"2410.16350","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2410.16350","created_at":"2026-07-05T10:47:55Z"},{"alias_kind":"arxiv_version","alias_value":"2410.16350v2","created_at":"2026-07-05T10:47:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2410.16350","created_at":"2026-07-05T10:47:55Z"},{"alias_kind":"pith_short_12","alias_value":"GVK6XW3ILZPG","created_at":"2026-07-05T10:47:55Z"},{"alias_kind":"pith_short_16","alias_value":"GVK6XW3ILZPG4JND","created_at":"2026-07-05T10:47:55Z"},{"alias_kind":"pith_short_8","alias_value":"GVK6XW3I","created_at":"2026-07-05T10:47:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:GVK6XW3ILZPG4JNDJYBB3AHGD2","target":"record","payload":{"canonical_record":{"source":{"id":"2410.16350","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2024-10-21T17:59:46Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"0dac2a56e853a96d53b26912dae630ee67ac3f87f76b93b5d7faa4d5dc7a6eb6","abstract_canon_sha256":"1ae17240abcdaebb17799fc89b17bfd17fd6674a6aeb581cefe6156241bee5c8"},"schema_version":"1.0"},"canonical_sha256":"3555ebdb685e5e6e25a34e021d80e61ebff85dc5c1304da732f3232e131a0b53","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:47:55.891535Z","signature_b64":"c7RvppWzkprRZf7AejhqAaI2DxKN+GhllahfWCQ5KW5cHdYMxNGqHPa3JeIiiHlcK2Zy3QEV2b+Ae+5jdg1ACA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3555ebdb685e5e6e25a34e021d80e61ebff85dc5c1304da732f3232e131a0b53","last_reissued_at":"2026-07-05T10:47:55.891019Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:47:55.891019Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2410.16350","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":"2026-07-05T10:47:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5i9kOV1sOiT2erXXM59k82tfsJNBVBadqvH8Hl53NiI9c8VB3fSzQTPasNuU8Icj+tr9qeGEmVHXSbNh6ESsDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T05:00:23.730309Z"},"content_sha256":"3325c59497765e37bbf05f52151cd466cb10f06168dfc558fec957635017fd41","schema_version":"1.0","event_id":"sha256:3325c59497765e37bbf05f52151cd466cb10f06168dfc558fec957635017fd41"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:GVK6XW3ILZPG4JNDJYBB3AHGD2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The ionization yield in a methane-filled spherical proportional counter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"physics.ins-det","authors_text":"A. Brossard, A. Dastgheibi-Fard, A. Makowski, C. Beaufort, C. Garrah, D. Durnford, D. Santos, D. Spathara, E.C. Corcoran, E.W. Hoppe, F. Kelly, F. Vazquez de Sola Fernandez, G. Gerbier, G. Giroux, G. Savvidis, H. Meadows, H.M. McCallum, I. Giomataris, I. Katsioulas, I. Manthos, I. Savvidis, J. Clarke, J.-F. Muraz, J. Matthews, J.-M. Coquillat, K. Nikolopoulos, L. Balogh, L. Millins, M. Chapellier, M.-C. Piro, M. Gros, M.M. Arora, N. Panchal, N. Rowe, O. Guillaudin, P. Gorel, P. Gros, P. Knights, P. Lautridou, R.D. Martin, R. Ward, T. Neep, Y. Deng","submitted_at":"2024-10-21T17:59:46Z","abstract_excerpt":"Spherical proportional counters (SPCs) are gaseous particle detectors sensitive to single ionization electrons in their target media, with large detector volumes and low background rates. The $\\mbox{NEWS-G}$ collaboration employs this technology to search for low-mass dark matter, having previously performed searches with detectors at the Laboratoire Souterrain de Modane (LSM), including a recent campaign with a 135 cm diameter SPC filled with methane. While in situ calibrations of the detector response were carried out at the LSM, measurements of the mean ionization yield and fluctuations of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2410.16350","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2410.16350/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T10:47:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R4jOeJKzixKFxrrou4Y6kEmnxrMyy2iSB66xHnKIj0XYgCNy//RkTEQU3yD3JZPoF6XqhdvZ7NhJFPHuwfqkBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T05:00:23.730837Z"},"content_sha256":"4208120fbbf75b20949036789a1e1f9d2965eea9f06f2bff2fdb1e56df0b9c1a","schema_version":"1.0","event_id":"sha256:4208120fbbf75b20949036789a1e1f9d2965eea9f06f2bff2fdb1e56df0b9c1a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GVK6XW3ILZPG4JNDJYBB3AHGD2/bundle.json","state_url":"https://pith.science/pith/GVK6XW3ILZPG4JNDJYBB3AHGD2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GVK6XW3ILZPG4JNDJYBB3AHGD2/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":"2026-08-06T05:00:23Z","links":{"resolver":"https://pith.science/pith/GVK6XW3ILZPG4JNDJYBB3AHGD2","bundle":"https://pith.science/pith/GVK6XW3ILZPG4JNDJYBB3AHGD2/bundle.json","state":"https://pith.science/pith/GVK6XW3ILZPG4JNDJYBB3AHGD2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GVK6XW3ILZPG4JNDJYBB3AHGD2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:GVK6XW3ILZPG4JNDJYBB3AHGD2","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":"1ae17240abcdaebb17799fc89b17bfd17fd6674a6aeb581cefe6156241bee5c8","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2024-10-21T17:59:46Z","title_canon_sha256":"0dac2a56e853a96d53b26912dae630ee67ac3f87f76b93b5d7faa4d5dc7a6eb6"},"schema_version":"1.0","source":{"id":"2410.16350","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2410.16350","created_at":"2026-07-05T10:47:55Z"},{"alias_kind":"arxiv_version","alias_value":"2410.16350v2","created_at":"2026-07-05T10:47:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2410.16350","created_at":"2026-07-05T10:47:55Z"},{"alias_kind":"pith_short_12","alias_value":"GVK6XW3ILZPG","created_at":"2026-07-05T10:47:55Z"},{"alias_kind":"pith_short_16","alias_value":"GVK6XW3ILZPG4JND","created_at":"2026-07-05T10:47:55Z"},{"alias_kind":"pith_short_8","alias_value":"GVK6XW3I","created_at":"2026-07-05T10:47:55Z"}],"graph_snapshots":[{"event_id":"sha256:4208120fbbf75b20949036789a1e1f9d2965eea9f06f2bff2fdb1e56df0b9c1a","target":"graph","created_at":"2026-07-05T10:47:55Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2410.16350/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Spherical proportional counters (SPCs) are gaseous particle detectors sensitive to single ionization electrons in their target media, with large detector volumes and low background rates. The $\\mbox{NEWS-G}$ collaboration employs this technology to search for low-mass dark matter, having previously performed searches with detectors at the Laboratoire Souterrain de Modane (LSM), including a recent campaign with a 135 cm diameter SPC filled with methane. While in situ calibrations of the detector response were carried out at the LSM, measurements of the mean ionization yield and fluctuations of ","authors_text":"A. Brossard, A. Dastgheibi-Fard, A. Makowski, C. Beaufort, C. Garrah, D. Durnford, D. Santos, D. Spathara, E.C. Corcoran, E.W. Hoppe, F. Kelly, F. Vazquez de Sola Fernandez, G. Gerbier, G. Giroux, G. Savvidis, H. Meadows, H.M. McCallum, I. Giomataris, I. Katsioulas, I. Manthos, I. Savvidis, J. Clarke, J.-F. Muraz, J. Matthews, J.-M. Coquillat, K. Nikolopoulos, L. Balogh, L. Millins, M. Chapellier, M.-C. Piro, M. Gros, M.M. Arora, N. Panchal, N. Rowe, O. Guillaudin, P. Gorel, P. Gros, P. Knights, P. Lautridou, R.D. Martin, R. Ward, T. Neep, Y. Deng","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2024-10-21T17:59:46Z","title":"The ionization yield in a methane-filled spherical proportional counter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2410.16350","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":"sha256:3325c59497765e37bbf05f52151cd466cb10f06168dfc558fec957635017fd41","target":"record","created_at":"2026-07-05T10:47:55Z","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":"1ae17240abcdaebb17799fc89b17bfd17fd6674a6aeb581cefe6156241bee5c8","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2024-10-21T17:59:46Z","title_canon_sha256":"0dac2a56e853a96d53b26912dae630ee67ac3f87f76b93b5d7faa4d5dc7a6eb6"},"schema_version":"1.0","source":{"id":"2410.16350","kind":"arxiv","version":2}},"canonical_sha256":"3555ebdb685e5e6e25a34e021d80e61ebff85dc5c1304da732f3232e131a0b53","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3555ebdb685e5e6e25a34e021d80e61ebff85dc5c1304da732f3232e131a0b53","first_computed_at":"2026-07-05T10:47:55.891019Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:47:55.891019Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"c7RvppWzkprRZf7AejhqAaI2DxKN+GhllahfWCQ5KW5cHdYMxNGqHPa3JeIiiHlcK2Zy3QEV2b+Ae+5jdg1ACA==","signature_status":"signed_v1","signed_at":"2026-07-05T10:47:55.891535Z","signed_message":"canonical_sha256_bytes"},"source_id":"2410.16350","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3325c59497765e37bbf05f52151cd466cb10f06168dfc558fec957635017fd41","sha256:4208120fbbf75b20949036789a1e1f9d2965eea9f06f2bff2fdb1e56df0b9c1a"],"state_sha256":"4da5e05de80655d5a230247c7a93a149d504910afc6364b5b94a12c78cb90520"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zAK/+tBsN6bmxDaHIRRVn+7jao84sDSqMeO+pP3Ivw0S0Lc64NfGj0fGtI+Xa1e6Pxz0Pod9H9w5XlKECRHjCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T05:00:23.736349Z","bundle_sha256":"97d801eb636ceebfb3e95b791dadd1bfff366ed63f56a665b8f2dc3d51df7b3c"}}