{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:562DBYMI6DYVB4K4YEDA5OLCXE","short_pith_number":"pith:562DBYMI","canonical_record":{"source":{"id":"physics/0512157","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"physics.ins-det","submitted_at":"2005-12-16T20:26:07Z","cross_cats_sorted":[],"title_canon_sha256":"2d7109d202ee61a7ec49a26c3dcd688286f513415daa129cc88f6a56eedf53a7","abstract_canon_sha256":"5b11d7f1176540bb0d5d05f1a9de731fe9756a211433caf6f956c559ec6d5013"},"schema_version":"1.0"},"canonical_sha256":"efb430e188f0f150f15cc1060eb962b90891180690e1529abf32e5742fd366f1","source":{"kind":"arxiv","id":"physics/0512157","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0512157","created_at":"2026-07-04T16:57:24Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0512157v1","created_at":"2026-07-04T16:57:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0512157","created_at":"2026-07-04T16:57:24Z"},{"alias_kind":"pith_short_12","alias_value":"562DBYMI6DYV","created_at":"2026-07-04T16:57:24Z"},{"alias_kind":"pith_short_16","alias_value":"562DBYMI6DYVB4K4","created_at":"2026-07-04T16:57:24Z"},{"alias_kind":"pith_short_8","alias_value":"562DBYMI","created_at":"2026-07-04T16:57:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:562DBYMI6DYVB4K4YEDA5OLCXE","target":"record","payload":{"canonical_record":{"source":{"id":"physics/0512157","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"physics.ins-det","submitted_at":"2005-12-16T20:26:07Z","cross_cats_sorted":[],"title_canon_sha256":"2d7109d202ee61a7ec49a26c3dcd688286f513415daa129cc88f6a56eedf53a7","abstract_canon_sha256":"5b11d7f1176540bb0d5d05f1a9de731fe9756a211433caf6f956c559ec6d5013"},"schema_version":"1.0"},"canonical_sha256":"efb430e188f0f150f15cc1060eb962b90891180690e1529abf32e5742fd366f1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:57:24.743387Z","signature_b64":"pYPro1lzXb4LvhZL3zIEZG865VXLf+s8fAtqUKDGGiIVrBhyVtoJ+VEhBdb0lbb793v4mGM9YeiujhfE3HdPDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"efb430e188f0f150f15cc1060eb962b90891180690e1529abf32e5742fd366f1","last_reissued_at":"2026-07-04T16:57:24.742947Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:57:24.742947Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"physics/0512157","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":"2026-07-04T16:57:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Pb1UVifwMtPaQy4YHTniKWvHmTRneDWk3tfvf+Z6u7FRvWxOzvt5kIL6wLHl7F7zBFvkH8upeSiam97HPlJBDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-14T11:36:06.315930Z"},"content_sha256":"26a28f0a21bc1cafb2d15f39d01ed991ecddaf1193e62d5fc9fc5342d00220d6","schema_version":"1.0","event_id":"sha256:26a28f0a21bc1cafb2d15f39d01ed991ecddaf1193e62d5fc9fc5342d00220d6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:562DBYMI6DYVB4K4YEDA5OLCXE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Correcting for Distortions due to Ionization in the STAR TPC","license":"","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"A. Lebedev, B. Stringfellow, G. Van Buren, H.Wieman, J. Dunlop, J.H. Thomas, J. Lauret, L. Didenko, Y. Fisyak","submitted_at":"2005-12-16T20:26:07Z","abstract_excerpt":"Physics goals of the STAR Experiment at RHIC in recent (and future) years drive the need to operate the STAR TPC at ever higher luminosities, leading to increased ionization levels in the TPC gas. The resulting ionic space charge introduces field distortions in the detector which impact tracking performance. Further complications arise from ionic charge leakage into the main TPC volume from the high gain anode region. STAR has implemented corrections for these distortions based on measures of luminosity, which we present here. Additionally, we highlight a novel approach to applying the correct"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0512157","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/physics/0512157/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":"2026-07-04T16:57:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0C1M/H5/HthMXjP0yggmbtjxNT2J/+uupiLXwmENf5u6H/ABOK0nn1stxDwe6DEMdQYwAHY6Rk78MuSf4abbDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-14T11:36:06.316329Z"},"content_sha256":"a0f87ac5b6f5a7e2ea864ee99351b4d9da9cb6ff07f073ca62c8473ddd4356b6","schema_version":"1.0","event_id":"sha256:a0f87ac5b6f5a7e2ea864ee99351b4d9da9cb6ff07f073ca62c8473ddd4356b6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/562DBYMI6DYVB4K4YEDA5OLCXE/bundle.json","state_url":"https://pith.science/pith/562DBYMI6DYVB4K4YEDA5OLCXE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/562DBYMI6DYVB4K4YEDA5OLCXE/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":"2026-07-14T11:36:06Z","links":{"resolver":"https://pith.science/pith/562DBYMI6DYVB4K4YEDA5OLCXE","bundle":"https://pith.science/pith/562DBYMI6DYVB4K4YEDA5OLCXE/bundle.json","state":"https://pith.science/pith/562DBYMI6DYVB4K4YEDA5OLCXE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/562DBYMI6DYVB4K4YEDA5OLCXE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:562DBYMI6DYVB4K4YEDA5OLCXE","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":"5b11d7f1176540bb0d5d05f1a9de731fe9756a211433caf6f956c559ec6d5013","cross_cats_sorted":[],"license":"","primary_cat":"physics.ins-det","submitted_at":"2005-12-16T20:26:07Z","title_canon_sha256":"2d7109d202ee61a7ec49a26c3dcd688286f513415daa129cc88f6a56eedf53a7"},"schema_version":"1.0","source":{"id":"physics/0512157","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0512157","created_at":"2026-07-04T16:57:24Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0512157v1","created_at":"2026-07-04T16:57:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0512157","created_at":"2026-07-04T16:57:24Z"},{"alias_kind":"pith_short_12","alias_value":"562DBYMI6DYV","created_at":"2026-07-04T16:57:24Z"},{"alias_kind":"pith_short_16","alias_value":"562DBYMI6DYVB4K4","created_at":"2026-07-04T16:57:24Z"},{"alias_kind":"pith_short_8","alias_value":"562DBYMI","created_at":"2026-07-04T16:57:24Z"}],"graph_snapshots":[{"event_id":"sha256:a0f87ac5b6f5a7e2ea864ee99351b4d9da9cb6ff07f073ca62c8473ddd4356b6","target":"graph","created_at":"2026-07-04T16:57:24Z","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/physics/0512157/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Physics goals of the STAR Experiment at RHIC in recent (and future) years drive the need to operate the STAR TPC at ever higher luminosities, leading to increased ionization levels in the TPC gas. The resulting ionic space charge introduces field distortions in the detector which impact tracking performance. Further complications arise from ionic charge leakage into the main TPC volume from the high gain anode region. STAR has implemented corrections for these distortions based on measures of luminosity, which we present here. Additionally, we highlight a novel approach to applying the correct","authors_text":"A. Lebedev, B. Stringfellow, G. Van Buren, H.Wieman, J. Dunlop, J.H. Thomas, J. Lauret, L. Didenko, Y. Fisyak","cross_cats":[],"headline":"","license":"","primary_cat":"physics.ins-det","submitted_at":"2005-12-16T20:26:07Z","title":"Correcting for Distortions due to Ionization in the STAR TPC"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0512157","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":"sha256:26a28f0a21bc1cafb2d15f39d01ed991ecddaf1193e62d5fc9fc5342d00220d6","target":"record","created_at":"2026-07-04T16:57:24Z","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":"5b11d7f1176540bb0d5d05f1a9de731fe9756a211433caf6f956c559ec6d5013","cross_cats_sorted":[],"license":"","primary_cat":"physics.ins-det","submitted_at":"2005-12-16T20:26:07Z","title_canon_sha256":"2d7109d202ee61a7ec49a26c3dcd688286f513415daa129cc88f6a56eedf53a7"},"schema_version":"1.0","source":{"id":"physics/0512157","kind":"arxiv","version":1}},"canonical_sha256":"efb430e188f0f150f15cc1060eb962b90891180690e1529abf32e5742fd366f1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"efb430e188f0f150f15cc1060eb962b90891180690e1529abf32e5742fd366f1","first_computed_at":"2026-07-04T16:57:24.742947Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:57:24.742947Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pYPro1lzXb4LvhZL3zIEZG865VXLf+s8fAtqUKDGGiIVrBhyVtoJ+VEhBdb0lbb793v4mGM9YeiujhfE3HdPDg==","signature_status":"signed_v1","signed_at":"2026-07-04T16:57:24.743387Z","signed_message":"canonical_sha256_bytes"},"source_id":"physics/0512157","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:26a28f0a21bc1cafb2d15f39d01ed991ecddaf1193e62d5fc9fc5342d00220d6","sha256:a0f87ac5b6f5a7e2ea864ee99351b4d9da9cb6ff07f073ca62c8473ddd4356b6"],"state_sha256":"5204bfe7122611a52bf69eb4e92196d91013703d999ab3d11760afc670e97157"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WFJp8H6+7Ny67nS9vLWBIFyD8c/tvA7YcD3F7ggnwUUbBIjnTZpVJdU2+93hzmTYyjjtaZrEexzs7DV8sj5hBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-14T11:36:06.318526Z","bundle_sha256":"6f5d671f0410b1ded254a59f023e5eb885673d248325dacf625d4452304a48bd"}}