{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:Y5VJPE6AWQ3262PP2CZRPBVQVC","short_pith_number":"pith:Y5VJPE6A","canonical_record":{"source":{"id":"1312.3928","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"physics.ins-det","submitted_at":"2013-12-13T20:15:41Z","cross_cats_sorted":[],"title_canon_sha256":"eec0d00345c55e3e41e5294a47f27c0a216cfa1329833550f8f75c5759378894","abstract_canon_sha256":"f4707344d193d55bc63d7818b639e4dd6008e0f71323a05af510360a709c7dd5"},"schema_version":"1.0"},"canonical_sha256":"c76a9793c0b437af69efd0b31786b0a8a2a285b19d7b3cc7fb5d69f53bfeb0f8","source":{"kind":"arxiv","id":"1312.3928","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.3928","created_at":"2026-05-18T01:45:50Z"},{"alias_kind":"arxiv_version","alias_value":"1312.3928v1","created_at":"2026-05-18T01:45:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.3928","created_at":"2026-05-18T01:45:50Z"},{"alias_kind":"pith_short_12","alias_value":"Y5VJPE6AWQ32","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"Y5VJPE6AWQ3262PP","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"Y5VJPE6A","created_at":"2026-05-18T12:28:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:Y5VJPE6AWQ3262PP2CZRPBVQVC","target":"record","payload":{"canonical_record":{"source":{"id":"1312.3928","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"physics.ins-det","submitted_at":"2013-12-13T20:15:41Z","cross_cats_sorted":[],"title_canon_sha256":"eec0d00345c55e3e41e5294a47f27c0a216cfa1329833550f8f75c5759378894","abstract_canon_sha256":"f4707344d193d55bc63d7818b639e4dd6008e0f71323a05af510360a709c7dd5"},"schema_version":"1.0"},"canonical_sha256":"c76a9793c0b437af69efd0b31786b0a8a2a285b19d7b3cc7fb5d69f53bfeb0f8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:45:50.629445Z","signature_b64":"SJxVtSmKRfEtIXkl6UgjA5pHHkgvA179hAxKLn2ECSCnhzEXPGFoo0j9Elz/u+Ics+qMRn7i44DRvOEZsdgKDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c76a9793c0b437af69efd0b31786b0a8a2a285b19d7b3cc7fb5d69f53bfeb0f8","last_reissued_at":"2026-05-18T01:45:50.629016Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:45:50.629016Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1312.3928","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":"2026-05-18T01:45:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TpcGvx+/e6JARQcvvZ2+FiPW5tbEBmDfv8CCIfnNO/OgGB+Jo3Jd0pqDZByPUtF7lJwo+/ATLBePpmC8tHdLBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T07:02:36.136170Z"},"content_sha256":"e569311c9dcdb3ad1b627c09c06c22a6b4645f8f14fdb852559199b532c3debf","schema_version":"1.0","event_id":"sha256:e569311c9dcdb3ad1b627c09c06c22a6b4645f8f14fdb852559199b532c3debf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:Y5VJPE6AWQ3262PP2CZRPBVQVC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Study of X-ray radiation damage in the AGIPD sensor for the European XFEL","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"Eckhart Fretwurst, Heinz Graafsma, Ioannis Kopsalis, Jiaguo Zhang, Joern Schwandt, Robert Klanner","submitted_at":"2013-12-13T20:15:41Z","abstract_excerpt":"The European X-ray Free Electron Laser (XFEL), currently being constructed in Hamburg and planning to be operational in 2017 for users, will deliver 27,000 fully coherent, high brilliance X-ray pulses per second with duration less than 100 fs. The unique features of the X-ray beam pose major challenges for detectors used at the European XFEL for imaging experiments, in particular a radiation tolerance of silicon sensors for doses up to 1 GGy for 3 years of operation at an operating voltage above 500 V. One of the detectors under development at the European XFEL is the Adaptive Gain Integrating"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.3928","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":"2026-05-18T01:45:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JxWMulB02ZYIQDZ4oj2ApB5neat92ZHlFf6JpAyOLknP4pyNx6xs3J+hTSW9gVuaSxNi8BVWGrl4iZlzdrl7AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T07:02:36.136543Z"},"content_sha256":"b636507991461c16c49ef0c15c211e543db605c4a45dd331f3de86802bc06ee7","schema_version":"1.0","event_id":"sha256:b636507991461c16c49ef0c15c211e543db605c4a45dd331f3de86802bc06ee7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Y5VJPE6AWQ3262PP2CZRPBVQVC/bundle.json","state_url":"https://pith.science/pith/Y5VJPE6AWQ3262PP2CZRPBVQVC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Y5VJPE6AWQ3262PP2CZRPBVQVC/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":"2026-05-20T07:02:36Z","links":{"resolver":"https://pith.science/pith/Y5VJPE6AWQ3262PP2CZRPBVQVC","bundle":"https://pith.science/pith/Y5VJPE6AWQ3262PP2CZRPBVQVC/bundle.json","state":"https://pith.science/pith/Y5VJPE6AWQ3262PP2CZRPBVQVC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Y5VJPE6AWQ3262PP2CZRPBVQVC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:Y5VJPE6AWQ3262PP2CZRPBVQVC","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":"f4707344d193d55bc63d7818b639e4dd6008e0f71323a05af510360a709c7dd5","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"physics.ins-det","submitted_at":"2013-12-13T20:15:41Z","title_canon_sha256":"eec0d00345c55e3e41e5294a47f27c0a216cfa1329833550f8f75c5759378894"},"schema_version":"1.0","source":{"id":"1312.3928","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.3928","created_at":"2026-05-18T01:45:50Z"},{"alias_kind":"arxiv_version","alias_value":"1312.3928v1","created_at":"2026-05-18T01:45:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.3928","created_at":"2026-05-18T01:45:50Z"},{"alias_kind":"pith_short_12","alias_value":"Y5VJPE6AWQ32","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"Y5VJPE6AWQ3262PP","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"Y5VJPE6A","created_at":"2026-05-18T12:28:06Z"}],"graph_snapshots":[{"event_id":"sha256:b636507991461c16c49ef0c15c211e543db605c4a45dd331f3de86802bc06ee7","target":"graph","created_at":"2026-05-18T01:45:50Z","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 European X-ray Free Electron Laser (XFEL), currently being constructed in Hamburg and planning to be operational in 2017 for users, will deliver 27,000 fully coherent, high brilliance X-ray pulses per second with duration less than 100 fs. The unique features of the X-ray beam pose major challenges for detectors used at the European XFEL for imaging experiments, in particular a radiation tolerance of silicon sensors for doses up to 1 GGy for 3 years of operation at an operating voltage above 500 V. One of the detectors under development at the European XFEL is the Adaptive Gain Integrating","authors_text":"Eckhart Fretwurst, Heinz Graafsma, Ioannis Kopsalis, Jiaguo Zhang, Joern Schwandt, Robert Klanner","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"physics.ins-det","submitted_at":"2013-12-13T20:15:41Z","title":"Study of X-ray radiation damage in the AGIPD sensor for the European XFEL"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.3928","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:e569311c9dcdb3ad1b627c09c06c22a6b4645f8f14fdb852559199b532c3debf","target":"record","created_at":"2026-05-18T01:45:50Z","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":"f4707344d193d55bc63d7818b639e4dd6008e0f71323a05af510360a709c7dd5","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"physics.ins-det","submitted_at":"2013-12-13T20:15:41Z","title_canon_sha256":"eec0d00345c55e3e41e5294a47f27c0a216cfa1329833550f8f75c5759378894"},"schema_version":"1.0","source":{"id":"1312.3928","kind":"arxiv","version":1}},"canonical_sha256":"c76a9793c0b437af69efd0b31786b0a8a2a285b19d7b3cc7fb5d69f53bfeb0f8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c76a9793c0b437af69efd0b31786b0a8a2a285b19d7b3cc7fb5d69f53bfeb0f8","first_computed_at":"2026-05-18T01:45:50.629016Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:45:50.629016Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SJxVtSmKRfEtIXkl6UgjA5pHHkgvA179hAxKLn2ECSCnhzEXPGFoo0j9Elz/u+Ics+qMRn7i44DRvOEZsdgKDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:45:50.629445Z","signed_message":"canonical_sha256_bytes"},"source_id":"1312.3928","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e569311c9dcdb3ad1b627c09c06c22a6b4645f8f14fdb852559199b532c3debf","sha256:b636507991461c16c49ef0c15c211e543db605c4a45dd331f3de86802bc06ee7"],"state_sha256":"de277deb524b631e22be60d2f16d4f83ad1bc016b7e3661bcce148b94f4ea0e4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VHGZ+GBPZT54fjwECW8NUzvRpjWojDYM0dfoov3sHI8MLt8xFINNIT3khyUhrPIToDxBZy6etqdgc332xW9oAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T07:02:36.138476Z","bundle_sha256":"b9425e5b658446b0c057d50e8f94aecf7681a2dd28e6ba7eafede237acfa02f5"}}