{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:43CKQZQ32FYY3MAB2B5GBYWFRW","short_pith_number":"pith:43CKQZQ3","canonical_record":{"source":{"id":"1908.05325","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-08-14T19:46:21Z","cross_cats_sorted":[],"title_canon_sha256":"9600530f00c3e8451401ec0419e8c5d2f432b71a263fb896118209fad5d68007","abstract_canon_sha256":"f7f92f5d451c7078bcbf4644d71b33870def5cc771613e09f34447f546c3e6ba"},"schema_version":"1.0"},"canonical_sha256":"e6c4a8661bd1718db001d07a60e2c58d91c396100f00fc4d29fb15b0d648d8ef","source":{"kind":"arxiv","id":"1908.05325","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.05325","created_at":"2026-07-04T23:56:50Z"},{"alias_kind":"arxiv_version","alias_value":"1908.05325v1","created_at":"2026-07-04T23:56:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.05325","created_at":"2026-07-04T23:56:50Z"},{"alias_kind":"pith_short_12","alias_value":"43CKQZQ32FYY","created_at":"2026-07-04T23:56:50Z"},{"alias_kind":"pith_short_16","alias_value":"43CKQZQ32FYY3MAB","created_at":"2026-07-04T23:56:50Z"},{"alias_kind":"pith_short_8","alias_value":"43CKQZQ3","created_at":"2026-07-04T23:56:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:43CKQZQ32FYY3MAB2B5GBYWFRW","target":"record","payload":{"canonical_record":{"source":{"id":"1908.05325","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-08-14T19:46:21Z","cross_cats_sorted":[],"title_canon_sha256":"9600530f00c3e8451401ec0419e8c5d2f432b71a263fb896118209fad5d68007","abstract_canon_sha256":"f7f92f5d451c7078bcbf4644d71b33870def5cc771613e09f34447f546c3e6ba"},"schema_version":"1.0"},"canonical_sha256":"e6c4a8661bd1718db001d07a60e2c58d91c396100f00fc4d29fb15b0d648d8ef","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:56:50.199081Z","signature_b64":"cGarG04/blQ8bYb+wrZiQsz954XK83yqVu+nwGzmckHNHLDkvBHTdQV7btkuMVSHGL93DYW5xA4oA4sqd4m1DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e6c4a8661bd1718db001d07a60e2c58d91c396100f00fc4d29fb15b0d648d8ef","last_reissued_at":"2026-07-04T23:56:50.198616Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:56:50.198616Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.05325","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":"2026-07-04T23:56:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5SESLwBTpyFAukDsMjlThEJzoZdKMMPYQO8ZZCfjRi2m7ew5YZbK1g+KEG30a9qUitPYi89YNSP2bvAwT/47AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T09:44:07.653907Z"},"content_sha256":"7eeba27dd694222f8c3812b76db421d9c38544a7d31aa066a4f61ae6e9b94c8c","schema_version":"1.0","event_id":"sha256:7eeba27dd694222f8c3812b76db421d9c38544a7d31aa066a4f61ae6e9b94c8c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:43CKQZQ32FYY3MAB2B5GBYWFRW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Highlights of Galactic Physics with VERITAS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Gregory T. Richards (for the VERITAS Collaboration)","submitted_at":"2019-08-14T19:46:21Z","abstract_excerpt":"VERITAS (Very Energetic Radiation Imaging Telescope Array System) is one of the most sensitive currently operating arrays of imaging atmospheric Cherenkov telescopes, which detect very high-energy (VHE; E > 100 GeV) gamma rays. VERITAS is currently in its 11th year of full-array operations with four 12m-diameter telescopes. Many Galactic sources of VHE gamma rays have been detected by VERITAS, such as pulsar wind nebulae, binary systems, and supernova remnants, and the study of VHE emission from these objects has enabled a deeper understanding of the underlying physical processes responsible f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.05325","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/1908.05325/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":"2026-07-04T23:56:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MomEkWTVDurkf6lWlzQpeRaH4mbQq+ChNQhDHRcEpRZuI3Cp6zbsBvfWlgCG11fLB6O8mu8HkPp4yZSW8ZiKAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T09:44:07.654839Z"},"content_sha256":"ba57d12526b1971772cd7a64c0c352265653f56b92fc7e195a912015c3dccd88","schema_version":"1.0","event_id":"sha256:ba57d12526b1971772cd7a64c0c352265653f56b92fc7e195a912015c3dccd88"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/43CKQZQ32FYY3MAB2B5GBYWFRW/bundle.json","state_url":"https://pith.science/pith/43CKQZQ32FYY3MAB2B5GBYWFRW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/43CKQZQ32FYY3MAB2B5GBYWFRW/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":"2026-08-16T09:44:07Z","links":{"resolver":"https://pith.science/pith/43CKQZQ32FYY3MAB2B5GBYWFRW","bundle":"https://pith.science/pith/43CKQZQ32FYY3MAB2B5GBYWFRW/bundle.json","state":"https://pith.science/pith/43CKQZQ32FYY3MAB2B5GBYWFRW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/43CKQZQ32FYY3MAB2B5GBYWFRW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:43CKQZQ32FYY3MAB2B5GBYWFRW","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":"f7f92f5d451c7078bcbf4644d71b33870def5cc771613e09f34447f546c3e6ba","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-08-14T19:46:21Z","title_canon_sha256":"9600530f00c3e8451401ec0419e8c5d2f432b71a263fb896118209fad5d68007"},"schema_version":"1.0","source":{"id":"1908.05325","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.05325","created_at":"2026-07-04T23:56:50Z"},{"alias_kind":"arxiv_version","alias_value":"1908.05325v1","created_at":"2026-07-04T23:56:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.05325","created_at":"2026-07-04T23:56:50Z"},{"alias_kind":"pith_short_12","alias_value":"43CKQZQ32FYY","created_at":"2026-07-04T23:56:50Z"},{"alias_kind":"pith_short_16","alias_value":"43CKQZQ32FYY3MAB","created_at":"2026-07-04T23:56:50Z"},{"alias_kind":"pith_short_8","alias_value":"43CKQZQ3","created_at":"2026-07-04T23:56:50Z"}],"graph_snapshots":[{"event_id":"sha256:ba57d12526b1971772cd7a64c0c352265653f56b92fc7e195a912015c3dccd88","target":"graph","created_at":"2026-07-04T23:56:50Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1908.05325/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"VERITAS (Very Energetic Radiation Imaging Telescope Array System) is one of the most sensitive currently operating arrays of imaging atmospheric Cherenkov telescopes, which detect very high-energy (VHE; E > 100 GeV) gamma rays. VERITAS is currently in its 11th year of full-array operations with four 12m-diameter telescopes. Many Galactic sources of VHE gamma rays have been detected by VERITAS, such as pulsar wind nebulae, binary systems, and supernova remnants, and the study of VHE emission from these objects has enabled a deeper understanding of the underlying physical processes responsible f","authors_text":"Gregory T. Richards (for the VERITAS Collaboration)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-08-14T19:46:21Z","title":"Highlights of Galactic Physics with VERITAS"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.05325","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":"sha256:7eeba27dd694222f8c3812b76db421d9c38544a7d31aa066a4f61ae6e9b94c8c","target":"record","created_at":"2026-07-04T23:56:50Z","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":"f7f92f5d451c7078bcbf4644d71b33870def5cc771613e09f34447f546c3e6ba","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-08-14T19:46:21Z","title_canon_sha256":"9600530f00c3e8451401ec0419e8c5d2f432b71a263fb896118209fad5d68007"},"schema_version":"1.0","source":{"id":"1908.05325","kind":"arxiv","version":1}},"canonical_sha256":"e6c4a8661bd1718db001d07a60e2c58d91c396100f00fc4d29fb15b0d648d8ef","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e6c4a8661bd1718db001d07a60e2c58d91c396100f00fc4d29fb15b0d648d8ef","first_computed_at":"2026-07-04T23:56:50.198616Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:56:50.198616Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cGarG04/blQ8bYb+wrZiQsz954XK83yqVu+nwGzmckHNHLDkvBHTdQV7btkuMVSHGL93DYW5xA4oA4sqd4m1DA==","signature_status":"signed_v1","signed_at":"2026-07-04T23:56:50.199081Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.05325","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7eeba27dd694222f8c3812b76db421d9c38544a7d31aa066a4f61ae6e9b94c8c","sha256:ba57d12526b1971772cd7a64c0c352265653f56b92fc7e195a912015c3dccd88"],"state_sha256":"7553940324641ff9cd24b7388c0e80ba9513e1dfbbe07fe2277c60f7f1743656"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0e0nMms5S6/xBp44vqhlOk7oMI8nNYed//m4wpeQZLQ4zapaCquuzUtGDyQriN+OGnfMGgvakmEvbi5/PcJJBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T09:44:07.681261Z","bundle_sha256":"6d9238392c46e01e2380c0db6c5b52ef9d925c8569efd95ef1476d2e668607f6"}}