{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:VSIV33QJZN7KXIV3IWWWXPAIG6","short_pith_number":"pith:VSIV33QJ","canonical_record":{"source":{"id":"2003.11534","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-03-25T17:47:57Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"90bbab501795a8f026786059a1845b319f162fa98e5de36df9da7a93b5bc27ce","abstract_canon_sha256":"dad4452d8b9b3a9d1bb2a04785eecd5de1da46cec28edf8e929edc59af8e99a8"},"schema_version":"1.0"},"canonical_sha256":"ac915dee09cb7eaba2bb45ad6bbc0837b00ef3d7d6980d2af466567e0121e8ed","source":{"kind":"arxiv","id":"2003.11534","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2003.11534","created_at":"2026-07-05T01:39:42Z"},{"alias_kind":"arxiv_version","alias_value":"2003.11534v2","created_at":"2026-07-05T01:39:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2003.11534","created_at":"2026-07-05T01:39:42Z"},{"alias_kind":"pith_short_12","alias_value":"VSIV33QJZN7K","created_at":"2026-07-05T01:39:42Z"},{"alias_kind":"pith_short_16","alias_value":"VSIV33QJZN7KXIV3","created_at":"2026-07-05T01:39:42Z"},{"alias_kind":"pith_short_8","alias_value":"VSIV33QJ","created_at":"2026-07-05T01:39:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:VSIV33QJZN7KXIV3IWWWXPAIG6","target":"record","payload":{"canonical_record":{"source":{"id":"2003.11534","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-03-25T17:47:57Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"90bbab501795a8f026786059a1845b319f162fa98e5de36df9da7a93b5bc27ce","abstract_canon_sha256":"dad4452d8b9b3a9d1bb2a04785eecd5de1da46cec28edf8e929edc59af8e99a8"},"schema_version":"1.0"},"canonical_sha256":"ac915dee09cb7eaba2bb45ad6bbc0837b00ef3d7d6980d2af466567e0121e8ed","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:39:42.867953Z","signature_b64":"H7Jqtwd0vYBkZBa8edr7IBRojCQov7Fx80KHwPXOPgbl69+wbWQmkXim3Jt8gW4KDjOrAcJXz/xsovVZkHC5Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ac915dee09cb7eaba2bb45ad6bbc0837b00ef3d7d6980d2af466567e0121e8ed","last_reissued_at":"2026-07-05T01:39:42.867508Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:39:42.867508Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2003.11534","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:39:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cyCXD5bXEu+ds5YYPZbChjIjRVfZexkNJrlIIVRnubVoO3Xa5Wz+UeRllgeqWTfHXeNA24pgZKOpuhjxi7SNCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-21T20:35:19.257944Z"},"content_sha256":"c55968da3c356c894aece6879412f81649456421ff9b5fecfe4b350aa6973e70","schema_version":"1.0","event_id":"sha256:c55968da3c356c894aece6879412f81649456421ff9b5fecfe4b350aa6973e70"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:VSIV33QJZN7KXIV3IWWWXPAIG6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High-energy particles and radiation in star-forming regions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.HE","authors_text":"A. Marcowith, A.M. Bykov, E. Amato, E. Waxman, J.M.D. Kruijssen, M.E. Kalyashova","submitted_at":"2020-03-25T17:47:57Z","abstract_excerpt":"Non-thermal particles and high-energy radiation can play a role in the dynamical processes in star-forming regions and provide an important piece of the multiwavelength observational picture of their structure and components. Powerful stellar winds and supernovae in compact clusters of massive stars and OB associations are known to be favourable sites of high-energy particle acceleration and sources of non-thermal radiation and neutrinos. Namely, young massive stellar clusters are likely sources of the PeV (petaelectronvolt) regime cosmic rays (CRs). They can also be responsible for the cosmic"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.11534","kind":"arxiv","version":2},"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/2003.11534/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":"2026-07-05T01:39:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"muFL0uGLNtDrdfmbIQq8PFjNTy5p4JakCV5xLCUHCBOTjcWYbx01m7w7p0hdtgUgLSL9MynWpWmG/xp4No5GBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-21T20:35:19.258329Z"},"content_sha256":"3644e833aa57650f800b24ba445e1543dd417d7c01cab3d810540e4f35e8b3cb","schema_version":"1.0","event_id":"sha256:3644e833aa57650f800b24ba445e1543dd417d7c01cab3d810540e4f35e8b3cb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VSIV33QJZN7KXIV3IWWWXPAIG6/bundle.json","state_url":"https://pith.science/pith/VSIV33QJZN7KXIV3IWWWXPAIG6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VSIV33QJZN7KXIV3IWWWXPAIG6/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":"2026-07-21T20:35:19Z","links":{"resolver":"https://pith.science/pith/VSIV33QJZN7KXIV3IWWWXPAIG6","bundle":"https://pith.science/pith/VSIV33QJZN7KXIV3IWWWXPAIG6/bundle.json","state":"https://pith.science/pith/VSIV33QJZN7KXIV3IWWWXPAIG6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VSIV33QJZN7KXIV3IWWWXPAIG6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:VSIV33QJZN7KXIV3IWWWXPAIG6","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":"dad4452d8b9b3a9d1bb2a04785eecd5de1da46cec28edf8e929edc59af8e99a8","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-03-25T17:47:57Z","title_canon_sha256":"90bbab501795a8f026786059a1845b319f162fa98e5de36df9da7a93b5bc27ce"},"schema_version":"1.0","source":{"id":"2003.11534","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2003.11534","created_at":"2026-07-05T01:39:42Z"},{"alias_kind":"arxiv_version","alias_value":"2003.11534v2","created_at":"2026-07-05T01:39:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2003.11534","created_at":"2026-07-05T01:39:42Z"},{"alias_kind":"pith_short_12","alias_value":"VSIV33QJZN7K","created_at":"2026-07-05T01:39:42Z"},{"alias_kind":"pith_short_16","alias_value":"VSIV33QJZN7KXIV3","created_at":"2026-07-05T01:39:42Z"},{"alias_kind":"pith_short_8","alias_value":"VSIV33QJ","created_at":"2026-07-05T01:39:42Z"}],"graph_snapshots":[{"event_id":"sha256:3644e833aa57650f800b24ba445e1543dd417d7c01cab3d810540e4f35e8b3cb","target":"graph","created_at":"2026-07-05T01:39:42Z","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/2003.11534/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Non-thermal particles and high-energy radiation can play a role in the dynamical processes in star-forming regions and provide an important piece of the multiwavelength observational picture of their structure and components. Powerful stellar winds and supernovae in compact clusters of massive stars and OB associations are known to be favourable sites of high-energy particle acceleration and sources of non-thermal radiation and neutrinos. Namely, young massive stellar clusters are likely sources of the PeV (petaelectronvolt) regime cosmic rays (CRs). They can also be responsible for the cosmic","authors_text":"A. Marcowith, A.M. Bykov, E. Amato, E. Waxman, J.M.D. Kruijssen, M.E. Kalyashova","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-03-25T17:47:57Z","title":"High-energy particles and radiation in star-forming regions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.11534","kind":"arxiv","version":2},"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:c55968da3c356c894aece6879412f81649456421ff9b5fecfe4b350aa6973e70","target":"record","created_at":"2026-07-05T01:39:42Z","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":"dad4452d8b9b3a9d1bb2a04785eecd5de1da46cec28edf8e929edc59af8e99a8","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-03-25T17:47:57Z","title_canon_sha256":"90bbab501795a8f026786059a1845b319f162fa98e5de36df9da7a93b5bc27ce"},"schema_version":"1.0","source":{"id":"2003.11534","kind":"arxiv","version":2}},"canonical_sha256":"ac915dee09cb7eaba2bb45ad6bbc0837b00ef3d7d6980d2af466567e0121e8ed","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ac915dee09cb7eaba2bb45ad6bbc0837b00ef3d7d6980d2af466567e0121e8ed","first_computed_at":"2026-07-05T01:39:42.867508Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:39:42.867508Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"H7Jqtwd0vYBkZBa8edr7IBRojCQov7Fx80KHwPXOPgbl69+wbWQmkXim3Jt8gW4KDjOrAcJXz/xsovVZkHC5Bg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:39:42.867953Z","signed_message":"canonical_sha256_bytes"},"source_id":"2003.11534","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c55968da3c356c894aece6879412f81649456421ff9b5fecfe4b350aa6973e70","sha256:3644e833aa57650f800b24ba445e1543dd417d7c01cab3d810540e4f35e8b3cb"],"state_sha256":"4f8f83c103127dd949b50bd60076b56eced8326520624ff8a586ff257f859784"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wpOXEfLwyIpSssxvfl9x4/kgSvdokxas6sRyuC/vgwHvDR5Gm26VPTMPYN/fhwRuDQP1eSyqQQB3AL2Av4YmBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-21T20:35:19.261005Z","bundle_sha256":"b5fceccb063ff6a206978f6b9011ded12707ab6e0dd836803c26daf97f2e46ae"}}