{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:SAHO5FK7U6QRI5NUGBOKYFQVXL","short_pith_number":"pith:SAHO5FK7","canonical_record":{"source":{"id":"hep-ex/0107066","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ex","submitted_at":"2001-07-24T10:17:50Z","cross_cats_sorted":[],"title_canon_sha256":"66c4c2ea11fbb4a1aead09ffcdffcff38b680f6b374b76d93d7ab0e102f7e33a","abstract_canon_sha256":"43cd70254e26daec3967de8e217b9bd173c99156dbe2212c551b64227ce68294"},"schema_version":"1.0"},"canonical_sha256":"900eee955fa7a11475b4305cac1615baf7d12c929d2c0354699695cca85e3550","source":{"kind":"arxiv","id":"hep-ex/0107066","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ex/0107066","created_at":"2026-05-18T01:39:16Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ex/0107066v1","created_at":"2026-05-18T01:39:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ex/0107066","created_at":"2026-05-18T01:39:16Z"},{"alias_kind":"pith_short_12","alias_value":"SAHO5FK7U6QR","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"SAHO5FK7U6QRI5NU","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"SAHO5FK7","created_at":"2026-05-18T12:25:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:SAHO5FK7U6QRI5NUGBOKYFQVXL","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ex/0107066","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ex","submitted_at":"2001-07-24T10:17:50Z","cross_cats_sorted":[],"title_canon_sha256":"66c4c2ea11fbb4a1aead09ffcdffcff38b680f6b374b76d93d7ab0e102f7e33a","abstract_canon_sha256":"43cd70254e26daec3967de8e217b9bd173c99156dbe2212c551b64227ce68294"},"schema_version":"1.0"},"canonical_sha256":"900eee955fa7a11475b4305cac1615baf7d12c929d2c0354699695cca85e3550","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:39:16.109641Z","signature_b64":"bKE6lmI14si83OzhGQlf+fKcus+X/DtNz7JIddx8zUU/5xyUOFB6eBQHyj6BeQ4edfRKqXXtB7qUhc6AIa3EBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"900eee955fa7a11475b4305cac1615baf7d12c929d2c0354699695cca85e3550","last_reissued_at":"2026-05-18T01:39:16.109169Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:39:16.109169Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ex/0107066","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":"2026-05-18T01:39:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3q6aiDJqqmH8Zbu4BLncRmFCGk0Z5F4V0PXEX/GSEGtXJCN0EcfwYrRMu9dNBkExZp64leSeW54A4wTwhdySBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T18:45:04.904733Z"},"content_sha256":"1b592249cb17bf88f57bff7b103a53737c240ae6f4829d905a7cc01ec5c21c9f","schema_version":"1.0","event_id":"sha256:1b592249cb17bf88f57bff7b103a53737c240ae6f4829d905a7cc01ec5c21c9f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:SAHO5FK7U6QRI5NUGBOKYFQVXL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Zeus at HERA II","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"B. Foster","submitted_at":"2001-07-24T10:17:50Z","abstract_excerpt":"The ZEUS detector has been upgraded in a number of areas to prepare for the physics opportunities of HERA II. These upgrades, and their physics rationale and promise, are briefly outlined. The measurement of polarisation at HERA II, and its importance for the HERA II physics programme, is also discussed."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0107066","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":"2026-05-18T01:39:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a2efPvUQqYfiigXCTTwlMmFnhd84O2lmR3HivW32s6s3zozcJZUaFGkCLIdLjcCt/4T3SKiCvT2v+dKjxHykDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T18:45:04.905087Z"},"content_sha256":"fe636fd5aa5c44a1b250971c3af589f1b9939f0da104faa191dd8c90f79c88e4","schema_version":"1.0","event_id":"sha256:fe636fd5aa5c44a1b250971c3af589f1b9939f0da104faa191dd8c90f79c88e4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SAHO5FK7U6QRI5NUGBOKYFQVXL/bundle.json","state_url":"https://pith.science/pith/SAHO5FK7U6QRI5NUGBOKYFQVXL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SAHO5FK7U6QRI5NUGBOKYFQVXL/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":"2026-06-02T18:45:04Z","links":{"resolver":"https://pith.science/pith/SAHO5FK7U6QRI5NUGBOKYFQVXL","bundle":"https://pith.science/pith/SAHO5FK7U6QRI5NUGBOKYFQVXL/bundle.json","state":"https://pith.science/pith/SAHO5FK7U6QRI5NUGBOKYFQVXL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SAHO5FK7U6QRI5NUGBOKYFQVXL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:SAHO5FK7U6QRI5NUGBOKYFQVXL","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":"43cd70254e26daec3967de8e217b9bd173c99156dbe2212c551b64227ce68294","cross_cats_sorted":[],"license":"","primary_cat":"hep-ex","submitted_at":"2001-07-24T10:17:50Z","title_canon_sha256":"66c4c2ea11fbb4a1aead09ffcdffcff38b680f6b374b76d93d7ab0e102f7e33a"},"schema_version":"1.0","source":{"id":"hep-ex/0107066","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ex/0107066","created_at":"2026-05-18T01:39:16Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ex/0107066v1","created_at":"2026-05-18T01:39:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ex/0107066","created_at":"2026-05-18T01:39:16Z"},{"alias_kind":"pith_short_12","alias_value":"SAHO5FK7U6QR","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"SAHO5FK7U6QRI5NU","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"SAHO5FK7","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:fe636fd5aa5c44a1b250971c3af589f1b9939f0da104faa191dd8c90f79c88e4","target":"graph","created_at":"2026-05-18T01:39:16Z","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":"The ZEUS detector has been upgraded in a number of areas to prepare for the physics opportunities of HERA II. These upgrades, and their physics rationale and promise, are briefly outlined. The measurement of polarisation at HERA II, and its importance for the HERA II physics programme, is also discussed.","authors_text":"B. Foster","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ex","submitted_at":"2001-07-24T10:17:50Z","title":"Zeus at HERA II"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0107066","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":"sha256:1b592249cb17bf88f57bff7b103a53737c240ae6f4829d905a7cc01ec5c21c9f","target":"record","created_at":"2026-05-18T01:39:16Z","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":"43cd70254e26daec3967de8e217b9bd173c99156dbe2212c551b64227ce68294","cross_cats_sorted":[],"license":"","primary_cat":"hep-ex","submitted_at":"2001-07-24T10:17:50Z","title_canon_sha256":"66c4c2ea11fbb4a1aead09ffcdffcff38b680f6b374b76d93d7ab0e102f7e33a"},"schema_version":"1.0","source":{"id":"hep-ex/0107066","kind":"arxiv","version":1}},"canonical_sha256":"900eee955fa7a11475b4305cac1615baf7d12c929d2c0354699695cca85e3550","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"900eee955fa7a11475b4305cac1615baf7d12c929d2c0354699695cca85e3550","first_computed_at":"2026-05-18T01:39:16.109169Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:39:16.109169Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bKE6lmI14si83OzhGQlf+fKcus+X/DtNz7JIddx8zUU/5xyUOFB6eBQHyj6BeQ4edfRKqXXtB7qUhc6AIa3EBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:39:16.109641Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ex/0107066","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1b592249cb17bf88f57bff7b103a53737c240ae6f4829d905a7cc01ec5c21c9f","sha256:fe636fd5aa5c44a1b250971c3af589f1b9939f0da104faa191dd8c90f79c88e4"],"state_sha256":"d044b62e7f4af72d5e6eb7245ef1bf58c93eb0b36f4e4ef67763ebc765c3a44d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2sZAr6BsnmH0mIWbA9NECUkZzP0mXpygd7KIvUfHoGur+sG1sNkXD5WHhlprMnhlZlOeDMLkRvRKqZpWfNTbBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T18:45:04.907297Z","bundle_sha256":"410858e9f4f116d9d2b0fd91ed1f71dc9f66b73a8c4de78d2361296aa8bba738"}}