{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1999:BXHXX4535HIQDZDENZCXMG2OB7","short_pith_number":"pith:BXHXX453","canonical_record":{"source":{"id":"astro-ph/9911510","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1999-11-30T06:00:51Z","cross_cats_sorted":[],"title_canon_sha256":"949225767933e18d6d436a5cb9481daa1c71ab84f49cdb40047f184c39ebb66a","abstract_canon_sha256":"6eb3ab444ee91cd2bc79fae355ee4bf7372eeb8ef268f93c9fc88287082a9965"},"schema_version":"1.0"},"canonical_sha256":"0dcf7bf3bbe9d101e4646e45761b4e0fc9833a9b6b0d7b040d754dd62024fbb2","source":{"kind":"arxiv","id":"astro-ph/9911510","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9911510","created_at":"2026-07-04T16:11:57Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9911510v1","created_at":"2026-07-04T16:11:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9911510","created_at":"2026-07-04T16:11:57Z"},{"alias_kind":"pith_short_12","alias_value":"BXHXX4535HIQ","created_at":"2026-07-04T16:11:57Z"},{"alias_kind":"pith_short_16","alias_value":"BXHXX4535HIQDZDE","created_at":"2026-07-04T16:11:57Z"},{"alias_kind":"pith_short_8","alias_value":"BXHXX453","created_at":"2026-07-04T16:11:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1999:BXHXX4535HIQDZDENZCXMG2OB7","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/9911510","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1999-11-30T06:00:51Z","cross_cats_sorted":[],"title_canon_sha256":"949225767933e18d6d436a5cb9481daa1c71ab84f49cdb40047f184c39ebb66a","abstract_canon_sha256":"6eb3ab444ee91cd2bc79fae355ee4bf7372eeb8ef268f93c9fc88287082a9965"},"schema_version":"1.0"},"canonical_sha256":"0dcf7bf3bbe9d101e4646e45761b4e0fc9833a9b6b0d7b040d754dd62024fbb2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:11:57.097351Z","signature_b64":"jV/1BjlKVcELEe3omuj502meMraE7N/WxoZxu481Q2lgTyBNTOJ4mhW+hsBeNF0e0IJEhVWHLAl60MRBZ3zYBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0dcf7bf3bbe9d101e4646e45761b4e0fc9833a9b6b0d7b040d754dd62024fbb2","last_reissued_at":"2026-07-04T16:11:57.096926Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:11:57.096926Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/9911510","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":"2026-07-04T16:11:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PcTRNAWk+rRPNCGw3wb8kJgYuwBwHJoNH78/75T2OwyrnjdlAIFPQ6DWJb1ospPkTEpMcSFLiwXLw0Ahh414Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T09:30:16.824526Z"},"content_sha256":"f08eb8857de1c791c21bcda49657c306afc8baf76508a7dc36cdf34511f63622","schema_version":"1.0","event_id":"sha256:f08eb8857de1c791c21bcda49657c306afc8baf76508a7dc36cdf34511f63622"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1999:BXHXX4535HIQDZDENZCXMG2OB7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Initial Performance of CANGAROO-II 7m telescope","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Kawachi, A. Yuki, G.P. Rowell, Hidetoshi Kubo, H. Muraishi, J. Jinbo, J. Kushida, J.R. Patterson, K. Nishijima, K. Sakurazawa, M.D. Roberts, M. Mori, M. Moriya, P.G. Edwards, R. Susukita, S.A. Dazeley, S. Gunji, S. Hara, S.Yanagita, T. Hara, T. Kifune, T. Naito, T.Sako, T.Tamura, T. Tanimori, T.Yoshida, T.Yoshikoshi, Y. Matsubara, Y. Mizumoto, Y. Muraki, Y. Sato","submitted_at":"1999-11-30T06:00:51Z","abstract_excerpt":"CANGAROO group constructed an imaging air Cherenkov telescope (CANGAROO-II) in March 1999 atWoomera, South Australia to observe celestial gamma-rays in hundreds GeV region. It has a 7m parabolic mirror consisting of 60 small plastic spherical mirrors, and the prime focus is equipped with a multi-pixel camera of 512 PMTs covering the field of view of 3 degrees. We report initial performance of the telescope."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9911510","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/astro-ph/9911510/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":"2026-07-04T16:11:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jppjAcJh5Wcw/usfP1oeV+lVsSdfD1A6CeF8FqOelsIsjRq1pWzRmTgxNG/1gMdoqaT+0L7fqSpJvsWuWvy2Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T09:30:16.824903Z"},"content_sha256":"b5562fc719cd9e769bf88118332b363f4b9118ab268ba4ca95f7a18c69f6be47","schema_version":"1.0","event_id":"sha256:b5562fc719cd9e769bf88118332b363f4b9118ab268ba4ca95f7a18c69f6be47"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BXHXX4535HIQDZDENZCXMG2OB7/bundle.json","state_url":"https://pith.science/pith/BXHXX4535HIQDZDENZCXMG2OB7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BXHXX4535HIQDZDENZCXMG2OB7/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":"2026-07-05T09:30:16Z","links":{"resolver":"https://pith.science/pith/BXHXX4535HIQDZDENZCXMG2OB7","bundle":"https://pith.science/pith/BXHXX4535HIQDZDENZCXMG2OB7/bundle.json","state":"https://pith.science/pith/BXHXX4535HIQDZDENZCXMG2OB7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BXHXX4535HIQDZDENZCXMG2OB7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:BXHXX4535HIQDZDENZCXMG2OB7","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":"6eb3ab444ee91cd2bc79fae355ee4bf7372eeb8ef268f93c9fc88287082a9965","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1999-11-30T06:00:51Z","title_canon_sha256":"949225767933e18d6d436a5cb9481daa1c71ab84f49cdb40047f184c39ebb66a"},"schema_version":"1.0","source":{"id":"astro-ph/9911510","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9911510","created_at":"2026-07-04T16:11:57Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9911510v1","created_at":"2026-07-04T16:11:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9911510","created_at":"2026-07-04T16:11:57Z"},{"alias_kind":"pith_short_12","alias_value":"BXHXX4535HIQ","created_at":"2026-07-04T16:11:57Z"},{"alias_kind":"pith_short_16","alias_value":"BXHXX4535HIQDZDE","created_at":"2026-07-04T16:11:57Z"},{"alias_kind":"pith_short_8","alias_value":"BXHXX453","created_at":"2026-07-04T16:11:57Z"}],"graph_snapshots":[{"event_id":"sha256:b5562fc719cd9e769bf88118332b363f4b9118ab268ba4ca95f7a18c69f6be47","target":"graph","created_at":"2026-07-04T16:11:57Z","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/astro-ph/9911510/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"CANGAROO group constructed an imaging air Cherenkov telescope (CANGAROO-II) in March 1999 atWoomera, South Australia to observe celestial gamma-rays in hundreds GeV region. It has a 7m parabolic mirror consisting of 60 small plastic spherical mirrors, and the prime focus is equipped with a multi-pixel camera of 512 PMTs covering the field of view of 3 degrees. We report initial performance of the telescope.","authors_text":"A. Kawachi, A. Yuki, G.P. Rowell, Hidetoshi Kubo, H. Muraishi, J. Jinbo, J. Kushida, J.R. Patterson, K. Nishijima, K. Sakurazawa, M.D. Roberts, M. Mori, M. Moriya, P.G. Edwards, R. Susukita, S.A. Dazeley, S. Gunji, S. Hara, S.Yanagita, T. Hara, T. Kifune, T. Naito, T.Sako, T.Tamura, T. Tanimori, T.Yoshida, T.Yoshikoshi, Y. Matsubara, Y. Mizumoto, Y. Muraki, Y. Sato","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1999-11-30T06:00:51Z","title":"Initial Performance of CANGAROO-II 7m telescope"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9911510","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:f08eb8857de1c791c21bcda49657c306afc8baf76508a7dc36cdf34511f63622","target":"record","created_at":"2026-07-04T16:11:57Z","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":"6eb3ab444ee91cd2bc79fae355ee4bf7372eeb8ef268f93c9fc88287082a9965","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1999-11-30T06:00:51Z","title_canon_sha256":"949225767933e18d6d436a5cb9481daa1c71ab84f49cdb40047f184c39ebb66a"},"schema_version":"1.0","source":{"id":"astro-ph/9911510","kind":"arxiv","version":1}},"canonical_sha256":"0dcf7bf3bbe9d101e4646e45761b4e0fc9833a9b6b0d7b040d754dd62024fbb2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0dcf7bf3bbe9d101e4646e45761b4e0fc9833a9b6b0d7b040d754dd62024fbb2","first_computed_at":"2026-07-04T16:11:57.096926Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:11:57.096926Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jV/1BjlKVcELEe3omuj502meMraE7N/WxoZxu481Q2lgTyBNTOJ4mhW+hsBeNF0e0IJEhVWHLAl60MRBZ3zYBw==","signature_status":"signed_v1","signed_at":"2026-07-04T16:11:57.097351Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9911510","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f08eb8857de1c791c21bcda49657c306afc8baf76508a7dc36cdf34511f63622","sha256:b5562fc719cd9e769bf88118332b363f4b9118ab268ba4ca95f7a18c69f6be47"],"state_sha256":"544a353634597d8ae179ca2972c6f04c906383a668cc42ba8dab44568e809593"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qS9kj1gZz3PANSVsddnSmuI/FcMfbIOlvMW8iaf0La+pc6VhLCUqoF+vviqqQm//JYzj29/ZI6qO0qcDRv43Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T09:30:16.827579Z","bundle_sha256":"ce38ef22adfea1b97a4533edda5e89ec2fa94ab43dc7116e83904e790a84d8d5"}}