{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:YUBWGJTVMFG6DBP4WLW3MUZG7W","short_pith_number":"pith:YUBWGJTV","canonical_record":{"source":{"id":"1002.4840","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-02-25T18:01:00Z","cross_cats_sorted":[],"title_canon_sha256":"de1f9d61ec499b3311d972629219a93daf1460f947938569690206445ae65ac7","abstract_canon_sha256":"73f6ec145769b8c85b8e05d13d833e45f9ceb8bfda26541b38c27fa2489bf6f9"},"schema_version":"1.0"},"canonical_sha256":"c503632675614de185fcb2edb65326fdac97b5ac514464a58e8da2a986a78c2b","source":{"kind":"arxiv","id":"1002.4840","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1002.4840","created_at":"2026-05-18T02:08:56Z"},{"alias_kind":"arxiv_version","alias_value":"1002.4840v1","created_at":"2026-05-18T02:08:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1002.4840","created_at":"2026-05-18T02:08:56Z"},{"alias_kind":"pith_short_12","alias_value":"YUBWGJTVMFG6","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"YUBWGJTVMFG6DBP4","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"YUBWGJTV","created_at":"2026-05-18T12:26:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:YUBWGJTVMFG6DBP4WLW3MUZG7W","target":"record","payload":{"canonical_record":{"source":{"id":"1002.4840","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-02-25T18:01:00Z","cross_cats_sorted":[],"title_canon_sha256":"de1f9d61ec499b3311d972629219a93daf1460f947938569690206445ae65ac7","abstract_canon_sha256":"73f6ec145769b8c85b8e05d13d833e45f9ceb8bfda26541b38c27fa2489bf6f9"},"schema_version":"1.0"},"canonical_sha256":"c503632675614de185fcb2edb65326fdac97b5ac514464a58e8da2a986a78c2b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:08:56.724525Z","signature_b64":"Dr11MEA3e5EaUOKLUvzjjCI26+OiVHTXOirQC4E2jGTolR4LePn3E31SGRP9/Dkq50Hrw9a1VuTL+fEPtm3xBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c503632675614de185fcb2edb65326fdac97b5ac514464a58e8da2a986a78c2b","last_reissued_at":"2026-05-18T02:08:56.723843Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:08:56.723843Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1002.4840","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":"2026-05-18T02:08:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lpJrntdZmE4qRDTRpqNlvhI02q0mANp0ZvQ54MCUdjkE4AZqBLpd4N9tJ4OTnz40+5VWQ6lAUEY0A2ABgllQCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T21:53:35.142777Z"},"content_sha256":"451b8b71582b1d246c1b145b6caae7d0073f64d247acc1c3af89640d39759d88","schema_version":"1.0","event_id":"sha256:451b8b71582b1d246c1b145b6caae7d0073f64d247acc1c3af89640d39759d88"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:YUBWGJTVMFG6DBP4WLW3MUZG7W","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cosmic Ray Accelerators in the Large Magellanic Cloud","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Yousaf M. Butt","submitted_at":"2010-02-25T18:01:00Z","abstract_excerpt":"I point out a correlation between gamma-ray emissivity and the historical star formation rate in the Large Magellanic Cloud ~12.5 Myr ago. This correlation bolsters the view that CRs in the LMC are accelerated by conglomerations of supernova remnants: i.e. superbubbles and supergiant shells."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1002.4840","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":"2026-05-18T02:08:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZqsYIjR0OqLUG+28mTQr3XrnGlcYRx0BFwAMJsVOKNmje0EH5RPfedWvj9v3vZNtp8kqxclRTQVxK15kLB5dAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T21:53:35.143115Z"},"content_sha256":"07442b7f2faa3349a23bda8e1e8cfc250f1260a11117bc97c73d32c933575118","schema_version":"1.0","event_id":"sha256:07442b7f2faa3349a23bda8e1e8cfc250f1260a11117bc97c73d32c933575118"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YUBWGJTVMFG6DBP4WLW3MUZG7W/bundle.json","state_url":"https://pith.science/pith/YUBWGJTVMFG6DBP4WLW3MUZG7W/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YUBWGJTVMFG6DBP4WLW3MUZG7W/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":"2026-06-08T21:53:35Z","links":{"resolver":"https://pith.science/pith/YUBWGJTVMFG6DBP4WLW3MUZG7W","bundle":"https://pith.science/pith/YUBWGJTVMFG6DBP4WLW3MUZG7W/bundle.json","state":"https://pith.science/pith/YUBWGJTVMFG6DBP4WLW3MUZG7W/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YUBWGJTVMFG6DBP4WLW3MUZG7W/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:YUBWGJTVMFG6DBP4WLW3MUZG7W","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":"73f6ec145769b8c85b8e05d13d833e45f9ceb8bfda26541b38c27fa2489bf6f9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-02-25T18:01:00Z","title_canon_sha256":"de1f9d61ec499b3311d972629219a93daf1460f947938569690206445ae65ac7"},"schema_version":"1.0","source":{"id":"1002.4840","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1002.4840","created_at":"2026-05-18T02:08:56Z"},{"alias_kind":"arxiv_version","alias_value":"1002.4840v1","created_at":"2026-05-18T02:08:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1002.4840","created_at":"2026-05-18T02:08:56Z"},{"alias_kind":"pith_short_12","alias_value":"YUBWGJTVMFG6","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"YUBWGJTVMFG6DBP4","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"YUBWGJTV","created_at":"2026-05-18T12:26:17Z"}],"graph_snapshots":[{"event_id":"sha256:07442b7f2faa3349a23bda8e1e8cfc250f1260a11117bc97c73d32c933575118","target":"graph","created_at":"2026-05-18T02:08:56Z","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":"I point out a correlation between gamma-ray emissivity and the historical star formation rate in the Large Magellanic Cloud ~12.5 Myr ago. This correlation bolsters the view that CRs in the LMC are accelerated by conglomerations of supernova remnants: i.e. superbubbles and supergiant shells.","authors_text":"Yousaf M. Butt","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-02-25T18:01:00Z","title":"Cosmic Ray Accelerators in the Large Magellanic Cloud"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1002.4840","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":"sha256:451b8b71582b1d246c1b145b6caae7d0073f64d247acc1c3af89640d39759d88","target":"record","created_at":"2026-05-18T02:08:56Z","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":"73f6ec145769b8c85b8e05d13d833e45f9ceb8bfda26541b38c27fa2489bf6f9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-02-25T18:01:00Z","title_canon_sha256":"de1f9d61ec499b3311d972629219a93daf1460f947938569690206445ae65ac7"},"schema_version":"1.0","source":{"id":"1002.4840","kind":"arxiv","version":1}},"canonical_sha256":"c503632675614de185fcb2edb65326fdac97b5ac514464a58e8da2a986a78c2b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c503632675614de185fcb2edb65326fdac97b5ac514464a58e8da2a986a78c2b","first_computed_at":"2026-05-18T02:08:56.723843Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:08:56.723843Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Dr11MEA3e5EaUOKLUvzjjCI26+OiVHTXOirQC4E2jGTolR4LePn3E31SGRP9/Dkq50Hrw9a1VuTL+fEPtm3xBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:08:56.724525Z","signed_message":"canonical_sha256_bytes"},"source_id":"1002.4840","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:451b8b71582b1d246c1b145b6caae7d0073f64d247acc1c3af89640d39759d88","sha256:07442b7f2faa3349a23bda8e1e8cfc250f1260a11117bc97c73d32c933575118"],"state_sha256":"6263d27ad933b2728390b1b66e16c3dd5992955e99d2d01417a65748e1a0ac14"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YqG17gT+KT+kdhmTl/LbYqUUq5s7ohHywAEh3lWPGJcrzQBibi3tQS4VhJkOvT6zKTkFjYrdrGJFho79jUabBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T21:53:35.144957Z","bundle_sha256":"b3152baec9060b03b0ea2fa0183490ce004f82cf0038c834576b94e765bd794b"}}