{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:W6QENKDB3E6RYOEKHVZC3ASJ7B","short_pith_number":"pith:W6QENKDB","canonical_record":{"source":{"id":"1708.04550","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-08-15T15:18:15Z","cross_cats_sorted":[],"title_canon_sha256":"c65a1dcd5331dd9a27b8f7f57f38c89d956c023a4477ab72ee899104c9960168","abstract_canon_sha256":"48a6e682dced8eada2900d7cb8050937202b739fabe73cca563b74a7b5d89e93"},"schema_version":"1.0"},"canonical_sha256":"b7a046a861d93d1c388a3d722d8249f8407074c0534ec014d8762fe33ede5a92","source":{"kind":"arxiv","id":"1708.04550","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.04550","created_at":"2026-05-18T00:01:00Z"},{"alias_kind":"arxiv_version","alias_value":"1708.04550v1","created_at":"2026-05-18T00:01:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.04550","created_at":"2026-05-18T00:01:00Z"},{"alias_kind":"pith_short_12","alias_value":"W6QENKDB3E6R","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_16","alias_value":"W6QENKDB3E6RYOEK","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_8","alias_value":"W6QENKDB","created_at":"2026-05-18T12:31:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:W6QENKDB3E6RYOEKHVZC3ASJ7B","target":"record","payload":{"canonical_record":{"source":{"id":"1708.04550","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-08-15T15:18:15Z","cross_cats_sorted":[],"title_canon_sha256":"c65a1dcd5331dd9a27b8f7f57f38c89d956c023a4477ab72ee899104c9960168","abstract_canon_sha256":"48a6e682dced8eada2900d7cb8050937202b739fabe73cca563b74a7b5d89e93"},"schema_version":"1.0"},"canonical_sha256":"b7a046a861d93d1c388a3d722d8249f8407074c0534ec014d8762fe33ede5a92","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:01:00.379024Z","signature_b64":"5WK2aKATEcmL3KmL4t+NhDtaYcXQUUQsH1H0hxDmZXiBr0B5d5k/CzOBZyzvNSRFEwSwddaA8k91dE0EoI36Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b7a046a861d93d1c388a3d722d8249f8407074c0534ec014d8762fe33ede5a92","last_reissued_at":"2026-05-18T00:01:00.378521Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:01:00.378521Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1708.04550","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":"2026-05-18T00:01:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"15PcXDhHBGa0BUoJmxmb+F4YmWFU3vCF/KDbWmm25hHeqxIL16ZJs64SfoUkAZGdvfoi2jN6CjkVN12d+QJgCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:15:05.305626Z"},"content_sha256":"3fa0be2be88b7468c4c096d106874e67d3572a53ab0333564179a657e9fc2714","schema_version":"1.0","event_id":"sha256:3fa0be2be88b7468c4c096d106874e67d3572a53ab0333564179a657e9fc2714"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:W6QENKDB3E6RYOEKHVZC3ASJ7B","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Performance of the upgraded H.E.S.S. cameras","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"A. Balzer, A. Jahnke, A. Kretzschmann, B. Giebels, C. Stegmann, C. Steppa, D. Berge, D. Ross, D. Salek, E. Delagnes, E. Moulin, F. Brun, F. Toussenel, G. Fontaine, G. Giavitto, H. Leich, H. L\\\"udecke, I. Lypova, J.A. Hinton, J.F. Glicenstein, J.P. Lenain, J. Thornhill, K. Shiningayamwe, M. Backes, M. de Naurois, M. F\\\"u{\\ss}ling, M. Kossatz, M. Penno, M. Schade, P. Manigot, P. Nayman, S. Bonnefoy, S. Klepser, S. Ohm, T. Ashton, T. Chaminade, T. Gr\\\"aber, T. Schwab, V. Lefranc, V. Marandon","submitted_at":"2017-08-15T15:18:15Z","abstract_excerpt":"The 14 years old cameras of the H.E.S.S. 12-m telescopes have been upgraded in 2015/2016, with the goals of reducing the system failure rate, reducing the dead time and improving the overall performance of the array. This conference contribution describes the various tests that were carried out on the cameras and their sub-components both in the lab and on site. It also gives an overview of the commissioning and calibration procedures adopted during and after the installation, including e.g. flat-fielding and trigger threshold scans. Finally, it reports in detail about the overall performance "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.04550","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":"2026-05-18T00:01:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OklPpO+Ofw9+gK636bj71MKqJRXOx1ikVuWQxvNC+C8PBPir3dw+vKjckp2EI/igt5AOAkjewXAGXS1z1bTfBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:15:05.305987Z"},"content_sha256":"c4e6b63cc329cabf3d30cb9482120b83788ed2ac98ba3fdeb0aa3f58a067447f","schema_version":"1.0","event_id":"sha256:c4e6b63cc329cabf3d30cb9482120b83788ed2ac98ba3fdeb0aa3f58a067447f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/W6QENKDB3E6RYOEKHVZC3ASJ7B/bundle.json","state_url":"https://pith.science/pith/W6QENKDB3E6RYOEKHVZC3ASJ7B/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/W6QENKDB3E6RYOEKHVZC3ASJ7B/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":"2026-05-28T19:15:05Z","links":{"resolver":"https://pith.science/pith/W6QENKDB3E6RYOEKHVZC3ASJ7B","bundle":"https://pith.science/pith/W6QENKDB3E6RYOEKHVZC3ASJ7B/bundle.json","state":"https://pith.science/pith/W6QENKDB3E6RYOEKHVZC3ASJ7B/state.json","well_known_bundle":"https://pith.science/.well-known/pith/W6QENKDB3E6RYOEKHVZC3ASJ7B/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:W6QENKDB3E6RYOEKHVZC3ASJ7B","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":"48a6e682dced8eada2900d7cb8050937202b739fabe73cca563b74a7b5d89e93","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-08-15T15:18:15Z","title_canon_sha256":"c65a1dcd5331dd9a27b8f7f57f38c89d956c023a4477ab72ee899104c9960168"},"schema_version":"1.0","source":{"id":"1708.04550","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.04550","created_at":"2026-05-18T00:01:00Z"},{"alias_kind":"arxiv_version","alias_value":"1708.04550v1","created_at":"2026-05-18T00:01:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.04550","created_at":"2026-05-18T00:01:00Z"},{"alias_kind":"pith_short_12","alias_value":"W6QENKDB3E6R","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_16","alias_value":"W6QENKDB3E6RYOEK","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_8","alias_value":"W6QENKDB","created_at":"2026-05-18T12:31:53Z"}],"graph_snapshots":[{"event_id":"sha256:c4e6b63cc329cabf3d30cb9482120b83788ed2ac98ba3fdeb0aa3f58a067447f","target":"graph","created_at":"2026-05-18T00:01:00Z","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 14 years old cameras of the H.E.S.S. 12-m telescopes have been upgraded in 2015/2016, with the goals of reducing the system failure rate, reducing the dead time and improving the overall performance of the array. This conference contribution describes the various tests that were carried out on the cameras and their sub-components both in the lab and on site. It also gives an overview of the commissioning and calibration procedures adopted during and after the installation, including e.g. flat-fielding and trigger threshold scans. Finally, it reports in detail about the overall performance ","authors_text":"A. Balzer, A. Jahnke, A. Kretzschmann, B. Giebels, C. Stegmann, C. Steppa, D. Berge, D. Ross, D. Salek, E. Delagnes, E. Moulin, F. Brun, F. Toussenel, G. Fontaine, G. Giavitto, H. Leich, H. L\\\"udecke, I. Lypova, J.A. Hinton, J.F. Glicenstein, J.P. Lenain, J. Thornhill, K. Shiningayamwe, M. Backes, M. de Naurois, M. F\\\"u{\\ss}ling, M. Kossatz, M. Penno, M. Schade, P. Manigot, P. Nayman, S. Bonnefoy, S. Klepser, S. Ohm, T. Ashton, T. Chaminade, T. Gr\\\"aber, T. Schwab, V. Lefranc, V. Marandon","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-08-15T15:18:15Z","title":"Performance of the upgraded H.E.S.S. cameras"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.04550","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":"sha256:3fa0be2be88b7468c4c096d106874e67d3572a53ab0333564179a657e9fc2714","target":"record","created_at":"2026-05-18T00:01:00Z","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":"48a6e682dced8eada2900d7cb8050937202b739fabe73cca563b74a7b5d89e93","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-08-15T15:18:15Z","title_canon_sha256":"c65a1dcd5331dd9a27b8f7f57f38c89d956c023a4477ab72ee899104c9960168"},"schema_version":"1.0","source":{"id":"1708.04550","kind":"arxiv","version":1}},"canonical_sha256":"b7a046a861d93d1c388a3d722d8249f8407074c0534ec014d8762fe33ede5a92","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b7a046a861d93d1c388a3d722d8249f8407074c0534ec014d8762fe33ede5a92","first_computed_at":"2026-05-18T00:01:00.378521Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:01:00.378521Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5WK2aKATEcmL3KmL4t+NhDtaYcXQUUQsH1H0hxDmZXiBr0B5d5k/CzOBZyzvNSRFEwSwddaA8k91dE0EoI36Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:01:00.379024Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.04550","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3fa0be2be88b7468c4c096d106874e67d3572a53ab0333564179a657e9fc2714","sha256:c4e6b63cc329cabf3d30cb9482120b83788ed2ac98ba3fdeb0aa3f58a067447f"],"state_sha256":"5fde303d6b858446b961e600bf5f54d6241185a425aef986b5bb4f2528492218"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cfY2hrGLQaqiDdQtoQuOVSZCwGAO6NoCEWKa0T3Fgd0vbsQ2p1A5xW5RiEoV9l85a3yUrK6M4Z/dMeTgCV/CDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T19:15:05.308155Z","bundle_sha256":"e593bee2e43b43777d7b2b90f624a0d75ed688b4980a77f7acbd071d42ab0b3b"}}