{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:K2KMQNVAUK3FTKSJMQJGCH3CXN","short_pith_number":"pith:K2KMQNVA","canonical_record":{"source":{"id":"1107.5573","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-07-27T19:51:39Z","cross_cats_sorted":[],"title_canon_sha256":"c52b8c12ef9b7a8a5dc2e3eb210d5791aa4699f7763c74470e4f6b99026348bd","abstract_canon_sha256":"41f3f93cf9b0092c5e5c67d78ec93d8b0b86b03eeb5b733c6259527f4369f03c"},"schema_version":"1.0"},"canonical_sha256":"5694c836a0a2b659aa496412611f62bb6b8af617392018d828cc44943d6d43d4","source":{"kind":"arxiv","id":"1107.5573","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.5573","created_at":"2026-05-18T02:01:08Z"},{"alias_kind":"arxiv_version","alias_value":"1107.5573v1","created_at":"2026-05-18T02:01:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.5573","created_at":"2026-05-18T02:01:08Z"},{"alias_kind":"pith_short_12","alias_value":"K2KMQNVAUK3F","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_16","alias_value":"K2KMQNVAUK3FTKSJ","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_8","alias_value":"K2KMQNVA","created_at":"2026-05-18T12:26:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:K2KMQNVAUK3FTKSJMQJGCH3CXN","target":"record","payload":{"canonical_record":{"source":{"id":"1107.5573","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-07-27T19:51:39Z","cross_cats_sorted":[],"title_canon_sha256":"c52b8c12ef9b7a8a5dc2e3eb210d5791aa4699f7763c74470e4f6b99026348bd","abstract_canon_sha256":"41f3f93cf9b0092c5e5c67d78ec93d8b0b86b03eeb5b733c6259527f4369f03c"},"schema_version":"1.0"},"canonical_sha256":"5694c836a0a2b659aa496412611f62bb6b8af617392018d828cc44943d6d43d4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:01:08.707070Z","signature_b64":"XyF87gWHNzLdFxRPbFUO3kqlkGC4wFS/wqRkKWVji70Tuubp/hiZ9vgXO3zSeMtwARvDmrA4P5XWOgHCW4lSAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5694c836a0a2b659aa496412611f62bb6b8af617392018d828cc44943d6d43d4","last_reissued_at":"2026-05-18T02:01:08.706335Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:01:08.706335Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1107.5573","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":"2026-05-18T02:01:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XyfY3EZYPN/dxr6cAyoG9MVUyAlQs6Ky7Pk3WPTOZ5ZJQSRiIrU2jpn+nqhjFl+Q31smKx1ohCwP3rmUZni6CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T15:48:39.670354Z"},"content_sha256":"a23e4d54728458833f9ba469ae611b3044daf4560da06a2bced4117c6f7ecf19","schema_version":"1.0","event_id":"sha256:a23e4d54728458833f9ba469ae611b3044daf4560da06a2bced4117c6f7ecf19"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:K2KMQNVAUK3FTKSJMQJGCH3CXN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Flight Performance of an advanced CZT Imaging Detector in a Balloon-borne Wide-Field Hard X-ray Telescope - ProtoEXIST1","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"A. Garson, B. Allen, H. Krawczynski, J. Apple, J. Grindlay, J. Hong, R. Baker, S. Barthelemy, W. H. Cleveland","submitted_at":"2011-07-27T19:51:39Z","abstract_excerpt":"We successfully carried out the first high-altitude balloon flight of a wide-field hard X-ray coded-aperture telescope ProtoEXIST1, which was launched from the Columbia Scientific Balloon Facility at Ft. Sumner, New Mexico on October 9, 2009. ProtoEXIST1 is the first implementation of an advanced CdZnTe (CZT) imaging detector in our ongoing program to establish the technology required for next generation wide-field hard X-ray telescopes. The CZT detector plane in ProtoEXIST1 consists of an 8 x 8 array of closely tiled 2 cm x 2 cm x 0.5 cm thick pixellated CZT crystals, each with 8 x 8 pixels, "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.5573","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":"2026-05-18T02:01:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sWQr50Ns+NB9AVDjI7JRkydSz8bD8g6AYBVZb/ZhT+hdbpU5tkfN1oAqcWBFHe1sQGuh5k2I49rfA8ngjqtaAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T15:48:39.670967Z"},"content_sha256":"cfeda9014a44444449a9a3fd256468bc88a7f03ad5d7eecadc42d537cf506f6d","schema_version":"1.0","event_id":"sha256:cfeda9014a44444449a9a3fd256468bc88a7f03ad5d7eecadc42d537cf506f6d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K2KMQNVAUK3FTKSJMQJGCH3CXN/bundle.json","state_url":"https://pith.science/pith/K2KMQNVAUK3FTKSJMQJGCH3CXN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K2KMQNVAUK3FTKSJMQJGCH3CXN/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":"2026-05-31T15:48:39Z","links":{"resolver":"https://pith.science/pith/K2KMQNVAUK3FTKSJMQJGCH3CXN","bundle":"https://pith.science/pith/K2KMQNVAUK3FTKSJMQJGCH3CXN/bundle.json","state":"https://pith.science/pith/K2KMQNVAUK3FTKSJMQJGCH3CXN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K2KMQNVAUK3FTKSJMQJGCH3CXN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:K2KMQNVAUK3FTKSJMQJGCH3CXN","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":"41f3f93cf9b0092c5e5c67d78ec93d8b0b86b03eeb5b733c6259527f4369f03c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-07-27T19:51:39Z","title_canon_sha256":"c52b8c12ef9b7a8a5dc2e3eb210d5791aa4699f7763c74470e4f6b99026348bd"},"schema_version":"1.0","source":{"id":"1107.5573","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.5573","created_at":"2026-05-18T02:01:08Z"},{"alias_kind":"arxiv_version","alias_value":"1107.5573v1","created_at":"2026-05-18T02:01:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.5573","created_at":"2026-05-18T02:01:08Z"},{"alias_kind":"pith_short_12","alias_value":"K2KMQNVAUK3F","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_16","alias_value":"K2KMQNVAUK3FTKSJ","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_8","alias_value":"K2KMQNVA","created_at":"2026-05-18T12:26:32Z"}],"graph_snapshots":[{"event_id":"sha256:cfeda9014a44444449a9a3fd256468bc88a7f03ad5d7eecadc42d537cf506f6d","target":"graph","created_at":"2026-05-18T02:01:08Z","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":"We successfully carried out the first high-altitude balloon flight of a wide-field hard X-ray coded-aperture telescope ProtoEXIST1, which was launched from the Columbia Scientific Balloon Facility at Ft. Sumner, New Mexico on October 9, 2009. ProtoEXIST1 is the first implementation of an advanced CdZnTe (CZT) imaging detector in our ongoing program to establish the technology required for next generation wide-field hard X-ray telescopes. The CZT detector plane in ProtoEXIST1 consists of an 8 x 8 array of closely tiled 2 cm x 2 cm x 0.5 cm thick pixellated CZT crystals, each with 8 x 8 pixels, ","authors_text":"A. Garson, B. Allen, H. Krawczynski, J. Apple, J. Grindlay, J. Hong, R. Baker, S. Barthelemy, W. H. Cleveland","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-07-27T19:51:39Z","title":"Flight Performance of an advanced CZT Imaging Detector in a Balloon-borne Wide-Field Hard X-ray Telescope - ProtoEXIST1"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.5573","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:a23e4d54728458833f9ba469ae611b3044daf4560da06a2bced4117c6f7ecf19","target":"record","created_at":"2026-05-18T02:01:08Z","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":"41f3f93cf9b0092c5e5c67d78ec93d8b0b86b03eeb5b733c6259527f4369f03c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-07-27T19:51:39Z","title_canon_sha256":"c52b8c12ef9b7a8a5dc2e3eb210d5791aa4699f7763c74470e4f6b99026348bd"},"schema_version":"1.0","source":{"id":"1107.5573","kind":"arxiv","version":1}},"canonical_sha256":"5694c836a0a2b659aa496412611f62bb6b8af617392018d828cc44943d6d43d4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5694c836a0a2b659aa496412611f62bb6b8af617392018d828cc44943d6d43d4","first_computed_at":"2026-05-18T02:01:08.706335Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:08.706335Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XyF87gWHNzLdFxRPbFUO3kqlkGC4wFS/wqRkKWVji70Tuubp/hiZ9vgXO3zSeMtwARvDmrA4P5XWOgHCW4lSAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:08.707070Z","signed_message":"canonical_sha256_bytes"},"source_id":"1107.5573","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a23e4d54728458833f9ba469ae611b3044daf4560da06a2bced4117c6f7ecf19","sha256:cfeda9014a44444449a9a3fd256468bc88a7f03ad5d7eecadc42d537cf506f6d"],"state_sha256":"2b6a3cca2c19f0a192730808ba76ea8d97d5704d94c961ed96e7699b2e8dcd25"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FIKiSCd6DMw7E4GXy8D+JIX/6zaeHn1aBwnJqUSzd30ToJCzmM/a4O5Om4vAqTd7LQSLxrVzDS4ZxyaLyX0jBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T15:48:39.676587Z","bundle_sha256":"f1952c21b681ee51ae6bafd783340f9fa5defa7d70361806da80ea461437281c"}}