{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:XQTIWZAJ7TG3HSMNSN4DLM3SML","short_pith_number":"pith:XQTIWZAJ","canonical_record":{"source":{"id":"0708.2904","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-08-21T19:33:24Z","cross_cats_sorted":[],"title_canon_sha256":"caece4c53d04038863fac7d75eaa2ce6322a3f5f6f6f69fd0ce045a3466b6371","abstract_canon_sha256":"bdb5a0f365550be9ed1a17c607f426a39df0aeaeace848042dee4763d433e2de"},"schema_version":"1.0"},"canonical_sha256":"bc268b6409fccdb3c98d937835b37262fa5ee1e81f06843f10832e4ce3c23b34","source":{"kind":"arxiv","id":"0708.2904","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0708.2904","created_at":"2026-05-18T04:09:14Z"},{"alias_kind":"arxiv_version","alias_value":"0708.2904v2","created_at":"2026-05-18T04:09:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0708.2904","created_at":"2026-05-18T04:09:14Z"},{"alias_kind":"pith_short_12","alias_value":"XQTIWZAJ7TG3","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"XQTIWZAJ7TG3HSMN","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"XQTIWZAJ","created_at":"2026-05-18T12:25:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:XQTIWZAJ7TG3HSMNSN4DLM3SML","target":"record","payload":{"canonical_record":{"source":{"id":"0708.2904","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-08-21T19:33:24Z","cross_cats_sorted":[],"title_canon_sha256":"caece4c53d04038863fac7d75eaa2ce6322a3f5f6f6f69fd0ce045a3466b6371","abstract_canon_sha256":"bdb5a0f365550be9ed1a17c607f426a39df0aeaeace848042dee4763d433e2de"},"schema_version":"1.0"},"canonical_sha256":"bc268b6409fccdb3c98d937835b37262fa5ee1e81f06843f10832e4ce3c23b34","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:09:14.857901Z","signature_b64":"dwS36f2OhBPufqJz9ksr05UxaMrvP7upn69esMuqSnf9cSDqWKEtbFxFI4CDNxqF944UMwqAd1f9JERyTnOjCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bc268b6409fccdb3c98d937835b37262fa5ee1e81f06843f10832e4ce3c23b34","last_reissued_at":"2026-05-18T04:09:14.857458Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:09:14.857458Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0708.2904","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":"2026-05-18T04:09:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F06E/xUdB/05hUo6zyDcYPGcJPPXW2qaTJwjFqwg/8ZU4IEvtlo65SonPzgILzOjIftoKBriRjGXCBhiny+tDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T10:59:21.951992Z"},"content_sha256":"4dd35e5e52a11e387a9fef8f69e401ce7a70e73f6c9bb0c723f896c0fd908369","schema_version":"1.0","event_id":"sha256:4dd35e5e52a11e387a9fef8f69e401ce7a70e73f6c9bb0c723f896c0fd908369"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:XQTIWZAJ7TG3HSMNSN4DLM3SML","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Possible evidence of a ground level enhancement of muons in association with a SWIFT Trigger","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"C. E. Navia, C. R. A. Augusto, K. H. Tsui, M. B. Robba","submitted_at":"2007-08-21T19:33:24Z","abstract_excerpt":"Starting from April 2007, a search for solar daily variation of the muon intensity ($E_\\mu >0.2$ GeV) at sea level and using two directional muon telescopes is in progress. In this survey, several ground level enhancements (GLEs) on the muon counting rate background have been found. Here, we highlight one of them, observed in the vertical telescope on 07 August 2007 for the following reasons: The GLE consists of a single narrow peak, with a statistical significance of 4.4$\\sigma$. The GLE is in temporal coincidence with a SWIFT trigger $N^0287222$, at 21:16:05 UT according to the Burst Alert T"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0708.2904","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":""},"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":"2026-05-18T04:09:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xOjugzrMxR6plHeUP67GmDH1IxJbAxdkjSxSliuiJRljKlWQrcqJYrwflhGR4My0He27Ss9nhjo6xwASCMXHAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T10:59:21.952682Z"},"content_sha256":"1f22474b1ef1b23be0de06f14a89169ed9c8974575384a0056893d2a06e1afdc","schema_version":"1.0","event_id":"sha256:1f22474b1ef1b23be0de06f14a89169ed9c8974575384a0056893d2a06e1afdc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XQTIWZAJ7TG3HSMNSN4DLM3SML/bundle.json","state_url":"https://pith.science/pith/XQTIWZAJ7TG3HSMNSN4DLM3SML/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XQTIWZAJ7TG3HSMNSN4DLM3SML/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":"2026-05-27T10:59:21Z","links":{"resolver":"https://pith.science/pith/XQTIWZAJ7TG3HSMNSN4DLM3SML","bundle":"https://pith.science/pith/XQTIWZAJ7TG3HSMNSN4DLM3SML/bundle.json","state":"https://pith.science/pith/XQTIWZAJ7TG3HSMNSN4DLM3SML/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XQTIWZAJ7TG3HSMNSN4DLM3SML/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:XQTIWZAJ7TG3HSMNSN4DLM3SML","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":"bdb5a0f365550be9ed1a17c607f426a39df0aeaeace848042dee4763d433e2de","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-08-21T19:33:24Z","title_canon_sha256":"caece4c53d04038863fac7d75eaa2ce6322a3f5f6f6f69fd0ce045a3466b6371"},"schema_version":"1.0","source":{"id":"0708.2904","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0708.2904","created_at":"2026-05-18T04:09:14Z"},{"alias_kind":"arxiv_version","alias_value":"0708.2904v2","created_at":"2026-05-18T04:09:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0708.2904","created_at":"2026-05-18T04:09:14Z"},{"alias_kind":"pith_short_12","alias_value":"XQTIWZAJ7TG3","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"XQTIWZAJ7TG3HSMN","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"XQTIWZAJ","created_at":"2026-05-18T12:25:56Z"}],"graph_snapshots":[{"event_id":"sha256:1f22474b1ef1b23be0de06f14a89169ed9c8974575384a0056893d2a06e1afdc","target":"graph","created_at":"2026-05-18T04:09:14Z","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":"Starting from April 2007, a search for solar daily variation of the muon intensity ($E_\\mu >0.2$ GeV) at sea level and using two directional muon telescopes is in progress. In this survey, several ground level enhancements (GLEs) on the muon counting rate background have been found. Here, we highlight one of them, observed in the vertical telescope on 07 August 2007 for the following reasons: The GLE consists of a single narrow peak, with a statistical significance of 4.4$\\sigma$. The GLE is in temporal coincidence with a SWIFT trigger $N^0287222$, at 21:16:05 UT according to the Burst Alert T","authors_text":"C. E. Navia, C. R. A. Augusto, K. H. Tsui, M. B. Robba","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-08-21T19:33:24Z","title":"Possible evidence of a ground level enhancement of muons in association with a SWIFT Trigger"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0708.2904","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":"sha256:4dd35e5e52a11e387a9fef8f69e401ce7a70e73f6c9bb0c723f896c0fd908369","target":"record","created_at":"2026-05-18T04:09:14Z","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":"bdb5a0f365550be9ed1a17c607f426a39df0aeaeace848042dee4763d433e2de","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-08-21T19:33:24Z","title_canon_sha256":"caece4c53d04038863fac7d75eaa2ce6322a3f5f6f6f69fd0ce045a3466b6371"},"schema_version":"1.0","source":{"id":"0708.2904","kind":"arxiv","version":2}},"canonical_sha256":"bc268b6409fccdb3c98d937835b37262fa5ee1e81f06843f10832e4ce3c23b34","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bc268b6409fccdb3c98d937835b37262fa5ee1e81f06843f10832e4ce3c23b34","first_computed_at":"2026-05-18T04:09:14.857458Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:09:14.857458Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dwS36f2OhBPufqJz9ksr05UxaMrvP7upn69esMuqSnf9cSDqWKEtbFxFI4CDNxqF944UMwqAd1f9JERyTnOjCg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:09:14.857901Z","signed_message":"canonical_sha256_bytes"},"source_id":"0708.2904","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4dd35e5e52a11e387a9fef8f69e401ce7a70e73f6c9bb0c723f896c0fd908369","sha256:1f22474b1ef1b23be0de06f14a89169ed9c8974575384a0056893d2a06e1afdc"],"state_sha256":"1fbe3c302d854fb0f3c249ce16e86a3f9e42e19e09aea2da3608d14d811547cb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aMpD4Z+H6ZgGiBzPCbu1YXo4eJFeGyJXHdXWsMlp+3ad0S0OyOcFQwa+bCjJOB6Ana7VcawE1U5Nqmy1U6mLCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T10:59:21.956772Z","bundle_sha256":"3f6afee33e9267415862b9453d4da52b533552d29dd65104be149295ee34caa6"}}