{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:44N4B4N336NZVSMYVZJQBEIT66","short_pith_number":"pith:44N4B4N3","schema_version":"1.0","canonical_sha256":"e71bc0f1bbdf9b9ac998ae53009113f78e144e6e44d299caa9e0535aaca7414c","source":{"kind":"arxiv","id":"1510.00317","version":2},"attestation_state":"computed","paper":{"title":"GEO 600 and the GEO-HF upgrade program: successes and challenges","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"A. Bisht, A. Khalaidovski, B. Sorazu, B. Willke, C. Affeldt, C. Bogan, C. Gr\\\"af, D. Macleod, E. Schreiber, H. Grote, H. L\\\"uck, H. Vahlbruch, H. Wittel, J. Degallaix, J. Hough, J. Lough, J.R. Leong, J. Slutsky, K. A. Strain, K. Danzmann, K.L. Dooley, L. Nuttall, M. Prijatelj, M. Was, N. Lastzka, R. Schnabel, S. Hild, T. Adams","submitted_at":"2015-10-01T17:01:11Z","abstract_excerpt":"The German-British laser-interferometric gravitational wave detector GEO 600 is in its 14th year of operation since its first lock in 2001. After GEO 600 participated in science runs with other first-generation detectors, a program known as GEO-HF began in 2009. The goal was to improve the detector sensitivity at high frequencies, around 1 kHz and above, with technologically advanced yet minimally invasive upgrades. Simultaneously, the detector would record science quality data in between commissioning activities. As of early 2014, all of the planned upgrades have been carried out and sensitiv"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1510.00317","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-10-01T17:01:11Z","cross_cats_sorted":[],"title_canon_sha256":"30aa77e2949d56815d59f7d0547fc5b95b39da580b288bde230fb0aea92ffecf","abstract_canon_sha256":"b5cef9350b160ea370b009e602d52c5981c2c6b6ab289f50c3a9257510c75627"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:18:32.982489Z","signature_b64":"WF3UHGTV8Y71vGkQjferuCpxUn2N+uTMJaRXnVXQJmkQB/GTY7lgmYJ2l3Q4+t7KYliQ8A61UMkwYzopGIJKCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e71bc0f1bbdf9b9ac998ae53009113f78e144e6e44d299caa9e0535aaca7414c","last_reissued_at":"2026-05-18T01:18:32.982054Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:18:32.982054Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"GEO 600 and the GEO-HF upgrade program: successes and challenges","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"A. Bisht, A. Khalaidovski, B. Sorazu, B. Willke, C. Affeldt, C. Bogan, C. Gr\\\"af, D. Macleod, E. Schreiber, H. Grote, H. L\\\"uck, H. Vahlbruch, H. Wittel, J. Degallaix, J. Hough, J. Lough, J.R. Leong, J. Slutsky, K. A. Strain, K. Danzmann, K.L. Dooley, L. Nuttall, M. Prijatelj, M. Was, N. Lastzka, R. Schnabel, S. Hild, T. Adams","submitted_at":"2015-10-01T17:01:11Z","abstract_excerpt":"The German-British laser-interferometric gravitational wave detector GEO 600 is in its 14th year of operation since its first lock in 2001. After GEO 600 participated in science runs with other first-generation detectors, a program known as GEO-HF began in 2009. The goal was to improve the detector sensitivity at high frequencies, around 1 kHz and above, with technologically advanced yet minimally invasive upgrades. Simultaneously, the detector would record science quality data in between commissioning activities. As of early 2014, all of the planned upgrades have been carried out and sensitiv"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.00317","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":""},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1510.00317","created_at":"2026-05-18T01:18:32.982118+00:00"},{"alias_kind":"arxiv_version","alias_value":"1510.00317v2","created_at":"2026-05-18T01:18:32.982118+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.00317","created_at":"2026-05-18T01:18:32.982118+00:00"},{"alias_kind":"pith_short_12","alias_value":"44N4B4N336NZ","created_at":"2026-05-18T12:29:02.477457+00:00"},{"alias_kind":"pith_short_16","alias_value":"44N4B4N336NZVSMY","created_at":"2026-05-18T12:29:02.477457+00:00"},{"alias_kind":"pith_short_8","alias_value":"44N4B4N3","created_at":"2026-05-18T12:29:02.477457+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/44N4B4N336NZVSMYVZJQBEIT66","json":"https://pith.science/pith/44N4B4N336NZVSMYVZJQBEIT66.json","graph_json":"https://pith.science/api/pith-number/44N4B4N336NZVSMYVZJQBEIT66/graph.json","events_json":"https://pith.science/api/pith-number/44N4B4N336NZVSMYVZJQBEIT66/events.json","paper":"https://pith.science/paper/44N4B4N3"},"agent_actions":{"view_html":"https://pith.science/pith/44N4B4N336NZVSMYVZJQBEIT66","download_json":"https://pith.science/pith/44N4B4N336NZVSMYVZJQBEIT66.json","view_paper":"https://pith.science/paper/44N4B4N3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1510.00317&json=true","fetch_graph":"https://pith.science/api/pith-number/44N4B4N336NZVSMYVZJQBEIT66/graph.json","fetch_events":"https://pith.science/api/pith-number/44N4B4N336NZVSMYVZJQBEIT66/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/44N4B4N336NZVSMYVZJQBEIT66/action/timestamp_anchor","attest_storage":"https://pith.science/pith/44N4B4N336NZVSMYVZJQBEIT66/action/storage_attestation","attest_author":"https://pith.science/pith/44N4B4N336NZVSMYVZJQBEIT66/action/author_attestation","sign_citation":"https://pith.science/pith/44N4B4N336NZVSMYVZJQBEIT66/action/citation_signature","submit_replication":"https://pith.science/pith/44N4B4N336NZVSMYVZJQBEIT66/action/replication_record"}},"created_at":"2026-05-18T01:18:32.982118+00:00","updated_at":"2026-05-18T01:18:32.982118+00:00"}