{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:HOWARHVDCR75QJIV4NZAPMTP7T","short_pith_number":"pith:HOWARHVD","canonical_record":{"source":{"id":"0709.4233","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-09-26T18:31:00Z","cross_cats_sorted":[],"title_canon_sha256":"654117da9835f5cc69b88ca811359e096cf9a8324f79cc93d4c675c248f0f11f","abstract_canon_sha256":"bee3f8b87f16049847652cdc21a1dd40c985f1b294c6ec0ba58c1860b08faada"},"schema_version":"1.0"},"canonical_sha256":"3bac089ea3147fd82515e37207b26ffce4dd1caf0990f226fd908564a5859ede","source":{"kind":"arxiv","id":"0709.4233","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0709.4233","created_at":"2026-07-04T23:52:49Z"},{"alias_kind":"arxiv_version","alias_value":"0709.4233v1","created_at":"2026-07-04T23:52:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0709.4233","created_at":"2026-07-04T23:52:49Z"},{"alias_kind":"pith_short_12","alias_value":"HOWARHVDCR75","created_at":"2026-07-04T23:52:49Z"},{"alias_kind":"pith_short_16","alias_value":"HOWARHVDCR75QJIV","created_at":"2026-07-04T23:52:49Z"},{"alias_kind":"pith_short_8","alias_value":"HOWARHVD","created_at":"2026-07-04T23:52:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:HOWARHVDCR75QJIV4NZAPMTP7T","target":"record","payload":{"canonical_record":{"source":{"id":"0709.4233","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-09-26T18:31:00Z","cross_cats_sorted":[],"title_canon_sha256":"654117da9835f5cc69b88ca811359e096cf9a8324f79cc93d4c675c248f0f11f","abstract_canon_sha256":"bee3f8b87f16049847652cdc21a1dd40c985f1b294c6ec0ba58c1860b08faada"},"schema_version":"1.0"},"canonical_sha256":"3bac089ea3147fd82515e37207b26ffce4dd1caf0990f226fd908564a5859ede","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:52:49.953428Z","signature_b64":"pwPUvXAXTryqLHzBAe6MQdqcwqDS1gW4DRT/20Z/o0FtTFVye/w18Oj0wrVK7TSuRZW0rP8rRgzv9W/XHCj1DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3bac089ea3147fd82515e37207b26ffce4dd1caf0990f226fd908564a5859ede","last_reissued_at":"2026-07-04T23:52:49.953004Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:52:49.953004Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0709.4233","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":"2026-07-04T23:52:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mPq1za4RSe+KjGT2bKXzOZay6F6iJpjJFlW+13Y2AHFZ1y2riCsTajK3SnN/ZyYHuwC7xJb3fwts/pPKQs4LCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T17:48:54.271121Z"},"content_sha256":"001a76ec4eb7adfb35f5afb573ad7d6d13d944253da51aadf4e0a540305573c1","schema_version":"1.0","event_id":"sha256:001a76ec4eb7adfb35f5afb573ad7d6d13d944253da51aadf4e0a540305573c1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:HOWARHVDCR75QJIV4NZAPMTP7T","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"VEGAS, the VERITAS Gamma-ray Analysis Suite","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"P. Cogan (for the VERITAS collaboration)","submitted_at":"2007-09-26T18:31:00Z","abstract_excerpt":"VERITAS, the Very Energetic Radiation Imaging Telescope Array System, is an array of four 12 m diameter imaging atmospheric Cherenkov telescopes for gamma-ray astronomy above 100 GeV currently in operation in Arizona. The VERITAS Collaboration has developed VEGAS, the VERITAS Gamma-ray Analysis Suite, a data-analysis software package for the processing of single- and multiple-telescope data produced by the array. The package consists of a core of six stages as well as visualisation and diagnostic components. It has been developed in C++ using modern objected-oriented design patterns to be high"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0709.4233","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/0709.4233/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":"2026-07-04T23:52:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WdOVo7odagIX0u2EBwpBDOTb2TSTD5nfqd/LMEIMDfqMJcLIOySQ9KodWE16wjAWWRWtxMukN4Qc+N3Hf2l/Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T17:48:54.271749Z"},"content_sha256":"4409a7a68874c1a26e1f324db1a0de54be7330541af4899ab7a4872e16b85191","schema_version":"1.0","event_id":"sha256:4409a7a68874c1a26e1f324db1a0de54be7330541af4899ab7a4872e16b85191"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HOWARHVDCR75QJIV4NZAPMTP7T/bundle.json","state_url":"https://pith.science/pith/HOWARHVDCR75QJIV4NZAPMTP7T/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HOWARHVDCR75QJIV4NZAPMTP7T/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":"2026-08-04T17:48:54Z","links":{"resolver":"https://pith.science/pith/HOWARHVDCR75QJIV4NZAPMTP7T","bundle":"https://pith.science/pith/HOWARHVDCR75QJIV4NZAPMTP7T/bundle.json","state":"https://pith.science/pith/HOWARHVDCR75QJIV4NZAPMTP7T/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HOWARHVDCR75QJIV4NZAPMTP7T/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:HOWARHVDCR75QJIV4NZAPMTP7T","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":"bee3f8b87f16049847652cdc21a1dd40c985f1b294c6ec0ba58c1860b08faada","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-09-26T18:31:00Z","title_canon_sha256":"654117da9835f5cc69b88ca811359e096cf9a8324f79cc93d4c675c248f0f11f"},"schema_version":"1.0","source":{"id":"0709.4233","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0709.4233","created_at":"2026-07-04T23:52:49Z"},{"alias_kind":"arxiv_version","alias_value":"0709.4233v1","created_at":"2026-07-04T23:52:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0709.4233","created_at":"2026-07-04T23:52:49Z"},{"alias_kind":"pith_short_12","alias_value":"HOWARHVDCR75","created_at":"2026-07-04T23:52:49Z"},{"alias_kind":"pith_short_16","alias_value":"HOWARHVDCR75QJIV","created_at":"2026-07-04T23:52:49Z"},{"alias_kind":"pith_short_8","alias_value":"HOWARHVD","created_at":"2026-07-04T23:52:49Z"}],"graph_snapshots":[{"event_id":"sha256:4409a7a68874c1a26e1f324db1a0de54be7330541af4899ab7a4872e16b85191","target":"graph","created_at":"2026-07-04T23:52:49Z","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/0709.4233/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"VERITAS, the Very Energetic Radiation Imaging Telescope Array System, is an array of four 12 m diameter imaging atmospheric Cherenkov telescopes for gamma-ray astronomy above 100 GeV currently in operation in Arizona. The VERITAS Collaboration has developed VEGAS, the VERITAS Gamma-ray Analysis Suite, a data-analysis software package for the processing of single- and multiple-telescope data produced by the array. The package consists of a core of six stages as well as visualisation and diagnostic components. It has been developed in C++ using modern objected-oriented design patterns to be high","authors_text":"P. Cogan (for the VERITAS collaboration)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-09-26T18:31:00Z","title":"VEGAS, the VERITAS Gamma-ray Analysis Suite"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0709.4233","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":"sha256:001a76ec4eb7adfb35f5afb573ad7d6d13d944253da51aadf4e0a540305573c1","target":"record","created_at":"2026-07-04T23:52:49Z","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":"bee3f8b87f16049847652cdc21a1dd40c985f1b294c6ec0ba58c1860b08faada","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-09-26T18:31:00Z","title_canon_sha256":"654117da9835f5cc69b88ca811359e096cf9a8324f79cc93d4c675c248f0f11f"},"schema_version":"1.0","source":{"id":"0709.4233","kind":"arxiv","version":1}},"canonical_sha256":"3bac089ea3147fd82515e37207b26ffce4dd1caf0990f226fd908564a5859ede","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3bac089ea3147fd82515e37207b26ffce4dd1caf0990f226fd908564a5859ede","first_computed_at":"2026-07-04T23:52:49.953004Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:52:49.953004Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pwPUvXAXTryqLHzBAe6MQdqcwqDS1gW4DRT/20Z/o0FtTFVye/w18Oj0wrVK7TSuRZW0rP8rRgzv9W/XHCj1DQ==","signature_status":"signed_v1","signed_at":"2026-07-04T23:52:49.953428Z","signed_message":"canonical_sha256_bytes"},"source_id":"0709.4233","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:001a76ec4eb7adfb35f5afb573ad7d6d13d944253da51aadf4e0a540305573c1","sha256:4409a7a68874c1a26e1f324db1a0de54be7330541af4899ab7a4872e16b85191"],"state_sha256":"8ca6d752a3080cc2c6a6724b68b80bc94377a37eb953a6024f5b61bc95fb5552"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/hxqyyj2mtdL9EXWpA7ZSLLzefhD+A6KmZ8vwLU5gjfxXH6vHWMV5n2bqoquljPjqmk1j7ZmZkBHDCuaAvZxBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T17:48:54.277973Z","bundle_sha256":"d8a9327ae419ce9a3f7fd264515b8b7ed1cbcba288822dc6ea0e845a12ff5c0b"}}