{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:BWJSCGOYRBHH6YQDVHMYKSXZ3T","short_pith_number":"pith:BWJSCGOY","canonical_record":{"source":{"id":"2508.18999","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-08-26T12:57:17Z","cross_cats_sorted":[],"title_canon_sha256":"741cfed25b10c98f5e6ea0447cc7df68ada19339913ab3786768b983809ea1fb","abstract_canon_sha256":"072974225f56939987983a4a4d4fdd6f08a8ac7057024e15932c240979c9e94b"},"schema_version":"1.0"},"canonical_sha256":"0d932119d8884e7f6203a9d9854af9dcc46c4fce36b7db64da052ab67a29b8b2","source":{"kind":"arxiv","id":"2508.18999","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.18999","created_at":"2026-07-05T11:59:35Z"},{"alias_kind":"arxiv_version","alias_value":"2508.18999v1","created_at":"2026-07-05T11:59:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.18999","created_at":"2026-07-05T11:59:35Z"},{"alias_kind":"pith_short_12","alias_value":"BWJSCGOYRBHH","created_at":"2026-07-05T11:59:35Z"},{"alias_kind":"pith_short_16","alias_value":"BWJSCGOYRBHH6YQD","created_at":"2026-07-05T11:59:35Z"},{"alias_kind":"pith_short_8","alias_value":"BWJSCGOY","created_at":"2026-07-05T11:59:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:BWJSCGOYRBHH6YQDVHMYKSXZ3T","target":"record","payload":{"canonical_record":{"source":{"id":"2508.18999","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-08-26T12:57:17Z","cross_cats_sorted":[],"title_canon_sha256":"741cfed25b10c98f5e6ea0447cc7df68ada19339913ab3786768b983809ea1fb","abstract_canon_sha256":"072974225f56939987983a4a4d4fdd6f08a8ac7057024e15932c240979c9e94b"},"schema_version":"1.0"},"canonical_sha256":"0d932119d8884e7f6203a9d9854af9dcc46c4fce36b7db64da052ab67a29b8b2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:59:35.098302Z","signature_b64":"PfJyiN+5HQaQKi8O4q/SiRuNQzQn7rRaEbI+za6u1qtJbFpxXk9p/DKn9X03ANewXCnX5CysNbh1POWsGc3lBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0d932119d8884e7f6203a9d9854af9dcc46c4fce36b7db64da052ab67a29b8b2","last_reissued_at":"2026-07-05T11:59:35.097839Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:59:35.097839Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2508.18999","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":"2026-07-05T11:59:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1IZ2oUH5avzAlUkM1/1+KSlOxIxFWXDZglCWoI7VzAy5fe/YmeHcTrVyTKp6T4Zons5h/61Wj0SW2dIb3iGPAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T00:47:18.435089Z"},"content_sha256":"a7c7c4055d0592b5afa65fca58eb420d46cc4f92bf581c3b54fbb220875bbc44","schema_version":"1.0","event_id":"sha256:a7c7c4055d0592b5afa65fca58eb420d46cc4f92bf581c3b54fbb220875bbc44"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:BWJSCGOYRBHH6YQDVHMYKSXZ3T","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detection of Diffuse Radio Emission inside the Supernova Remnant G338.3-0.0 associated with the Gamma-ray Source HESS J1640-465","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Jason Alford, Joseph Gelfand, Moaz Abdelmaguid","submitted_at":"2025-08-26T12:57:17Z","abstract_excerpt":"We report the discovery of diffuse radio emission within SNR G338.3-0.0 using new MeerKAT observations at 816 MHz and 1.4 GHz. The radio emission spatially overlaps with the X-ray pulsar wind nebula (PWN) powered by PSR J1640-4631 and the GeV/TeV gamma-ray source HESS J1640-465. The morphology of this radio emission is centrally peaked and its extent is well-contained within the SNR shell. A lack of mid- and far-infrared counterparts and the absence of catalogued H II regions argues against a thermal origin, while the morphology and radial profile are suggestive of a PWN origin powered by PSR "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.18999","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/2508.18999/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":"2026-07-05T11:59:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gG/7CZcQ7ZLUjI6BA29Rv3IM9PU7+rtc3lCWnZ/yop1grXVqNeRcWq+Wi/BJClLzzOxyEy3XyjvHpEaCQzqSDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T00:47:18.435597Z"},"content_sha256":"6e2862cb4b9041677b8a863c3b0f36af5acb6a7700c72e30c44028fa8242b9cf","schema_version":"1.0","event_id":"sha256:6e2862cb4b9041677b8a863c3b0f36af5acb6a7700c72e30c44028fa8242b9cf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BWJSCGOYRBHH6YQDVHMYKSXZ3T/bundle.json","state_url":"https://pith.science/pith/BWJSCGOYRBHH6YQDVHMYKSXZ3T/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BWJSCGOYRBHH6YQDVHMYKSXZ3T/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":"2026-08-06T00:47:18Z","links":{"resolver":"https://pith.science/pith/BWJSCGOYRBHH6YQDVHMYKSXZ3T","bundle":"https://pith.science/pith/BWJSCGOYRBHH6YQDVHMYKSXZ3T/bundle.json","state":"https://pith.science/pith/BWJSCGOYRBHH6YQDVHMYKSXZ3T/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BWJSCGOYRBHH6YQDVHMYKSXZ3T/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:BWJSCGOYRBHH6YQDVHMYKSXZ3T","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":"072974225f56939987983a4a4d4fdd6f08a8ac7057024e15932c240979c9e94b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-08-26T12:57:17Z","title_canon_sha256":"741cfed25b10c98f5e6ea0447cc7df68ada19339913ab3786768b983809ea1fb"},"schema_version":"1.0","source":{"id":"2508.18999","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.18999","created_at":"2026-07-05T11:59:35Z"},{"alias_kind":"arxiv_version","alias_value":"2508.18999v1","created_at":"2026-07-05T11:59:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.18999","created_at":"2026-07-05T11:59:35Z"},{"alias_kind":"pith_short_12","alias_value":"BWJSCGOYRBHH","created_at":"2026-07-05T11:59:35Z"},{"alias_kind":"pith_short_16","alias_value":"BWJSCGOYRBHH6YQD","created_at":"2026-07-05T11:59:35Z"},{"alias_kind":"pith_short_8","alias_value":"BWJSCGOY","created_at":"2026-07-05T11:59:35Z"}],"graph_snapshots":[{"event_id":"sha256:6e2862cb4b9041677b8a863c3b0f36af5acb6a7700c72e30c44028fa8242b9cf","target":"graph","created_at":"2026-07-05T11:59:35Z","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/2508.18999/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report the discovery of diffuse radio emission within SNR G338.3-0.0 using new MeerKAT observations at 816 MHz and 1.4 GHz. The radio emission spatially overlaps with the X-ray pulsar wind nebula (PWN) powered by PSR J1640-4631 and the GeV/TeV gamma-ray source HESS J1640-465. The morphology of this radio emission is centrally peaked and its extent is well-contained within the SNR shell. A lack of mid- and far-infrared counterparts and the absence of catalogued H II regions argues against a thermal origin, while the morphology and radial profile are suggestive of a PWN origin powered by PSR ","authors_text":"Jason Alford, Joseph Gelfand, Moaz Abdelmaguid","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-08-26T12:57:17Z","title":"Detection of Diffuse Radio Emission inside the Supernova Remnant G338.3-0.0 associated with the Gamma-ray Source HESS J1640-465"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.18999","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:a7c7c4055d0592b5afa65fca58eb420d46cc4f92bf581c3b54fbb220875bbc44","target":"record","created_at":"2026-07-05T11:59:35Z","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":"072974225f56939987983a4a4d4fdd6f08a8ac7057024e15932c240979c9e94b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-08-26T12:57:17Z","title_canon_sha256":"741cfed25b10c98f5e6ea0447cc7df68ada19339913ab3786768b983809ea1fb"},"schema_version":"1.0","source":{"id":"2508.18999","kind":"arxiv","version":1}},"canonical_sha256":"0d932119d8884e7f6203a9d9854af9dcc46c4fce36b7db64da052ab67a29b8b2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0d932119d8884e7f6203a9d9854af9dcc46c4fce36b7db64da052ab67a29b8b2","first_computed_at":"2026-07-05T11:59:35.097839Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:59:35.097839Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PfJyiN+5HQaQKi8O4q/SiRuNQzQn7rRaEbI+za6u1qtJbFpxXk9p/DKn9X03ANewXCnX5CysNbh1POWsGc3lBw==","signature_status":"signed_v1","signed_at":"2026-07-05T11:59:35.098302Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.18999","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a7c7c4055d0592b5afa65fca58eb420d46cc4f92bf581c3b54fbb220875bbc44","sha256:6e2862cb4b9041677b8a863c3b0f36af5acb6a7700c72e30c44028fa8242b9cf"],"state_sha256":"57c25b4a45a94d8802389e71be4cb417890ddbfbee029495e5d3a73b5c6c4b54"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fpEvCRjAmUkle0IbtT2HgLSDbNMBB5FD1EDa/x8zGjOZOsHzpqRhby5JPSPwKEs/0ZZbDCWkp64HFX/FPlSKBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T00:47:18.445548Z","bundle_sha256":"1b6112f03a48cf313dfeb6da39818ca6d4e6eab29ac3f44290a6c99eb246572f"}}