{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:C63K32E3XDOVWYLAI3VKT7Y7SJ","short_pith_number":"pith:C63K32E3","canonical_record":{"source":{"id":"2209.07755","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-09-16T07:27:27Z","cross_cats_sorted":[],"title_canon_sha256":"4cba96337279d5e1f3627018b0ede2f6bbc0509d15627a846f4e57c10a5da14f","abstract_canon_sha256":"247d03184ff86e68d3a1e1ea1f0d8422232cb4baf8fd164823fec8b2fbbbab49"},"schema_version":"1.0"},"canonical_sha256":"17b6ade89bb8dd5b616046eaa9ff1f92729f94736748c3ff7b2c9499f35ae09f","source":{"kind":"arxiv","id":"2209.07755","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.07755","created_at":"2026-07-05T04:58:09Z"},{"alias_kind":"arxiv_version","alias_value":"2209.07755v1","created_at":"2026-07-05T04:58:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.07755","created_at":"2026-07-05T04:58:09Z"},{"alias_kind":"pith_short_12","alias_value":"C63K32E3XDOV","created_at":"2026-07-05T04:58:09Z"},{"alias_kind":"pith_short_16","alias_value":"C63K32E3XDOVWYLA","created_at":"2026-07-05T04:58:09Z"},{"alias_kind":"pith_short_8","alias_value":"C63K32E3","created_at":"2026-07-05T04:58:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:C63K32E3XDOVWYLAI3VKT7Y7SJ","target":"record","payload":{"canonical_record":{"source":{"id":"2209.07755","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-09-16T07:27:27Z","cross_cats_sorted":[],"title_canon_sha256":"4cba96337279d5e1f3627018b0ede2f6bbc0509d15627a846f4e57c10a5da14f","abstract_canon_sha256":"247d03184ff86e68d3a1e1ea1f0d8422232cb4baf8fd164823fec8b2fbbbab49"},"schema_version":"1.0"},"canonical_sha256":"17b6ade89bb8dd5b616046eaa9ff1f92729f94736748c3ff7b2c9499f35ae09f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:58:09.483220Z","signature_b64":"rPl9NPo6rHjVSKnDLL/KsOiphHnrDLnyUH+jPKLcuF1iuhMWNP2PCWOThr0+l9SSA4OPI/f63pP51Ule79ZUDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"17b6ade89bb8dd5b616046eaa9ff1f92729f94736748c3ff7b2c9499f35ae09f","last_reissued_at":"2026-07-05T04:58:09.482893Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:58:09.482893Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2209.07755","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":"2026-07-05T04:58:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RJBtUwrvCJ7blENEWA3IDmT/HHIiaRxIdIN42QxeVlE3WXonAau2DBytrMyjsHlqQhwpVkGC0moNaPdn9SemCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T04:15:59.232101Z"},"content_sha256":"f377884157d4c58065a685014f585ba1151d92d6769f86a3d5dd2139e0ae51cc","schema_version":"1.0","event_id":"sha256:f377884157d4c58065a685014f585ba1151d92d6769f86a3d5dd2139e0ae51cc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:C63K32E3XDOVWYLAI3VKT7Y7SJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Confirmation of dust scattering echo around MAXI J1421-613 by Swift observation","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Kumiko K. Nobukawa, Masayoshi Nobukawa, Shigeo Yamauchi","submitted_at":"2022-09-16T07:27:27Z","abstract_excerpt":"MAXI J1421-613 is an X-ray burster discovered by Monitor of All-sky X-ray Image (MAXI) on 9 January 2014 and is considered to be a low-mass X-ray binary. A previous study analyzing follow-up observation data obtained by Suzaku on 31 January to 3 February 2014 reported that an annular emission of ~3'-9' radius was found around the transient source. The most plausible origin of the annular emission is a dust scattering echo by the outburst of MAXI J1421-613. In this paper, we confirm the annular emission by analyzing the data of the Swift follow-up observation which was conducted by the photon c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.07755","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/2209.07755/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":"2026-07-05T04:58:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Zvv8A8hYoxNNHEAqJcYT0NDVNTFcU1BjsBw/kpo+yCnRgJd97hwMheMm09JARXHWX/ZvCBVOIJJ9BaQNXeMQBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T04:15:59.232616Z"},"content_sha256":"fc44ac327a2c293a6d71805072912afe4cab988c0575b02f5ee7659582b7f4fc","schema_version":"1.0","event_id":"sha256:fc44ac327a2c293a6d71805072912afe4cab988c0575b02f5ee7659582b7f4fc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/C63K32E3XDOVWYLAI3VKT7Y7SJ/bundle.json","state_url":"https://pith.science/pith/C63K32E3XDOVWYLAI3VKT7Y7SJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/C63K32E3XDOVWYLAI3VKT7Y7SJ/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":"2026-08-20T04:15:59Z","links":{"resolver":"https://pith.science/pith/C63K32E3XDOVWYLAI3VKT7Y7SJ","bundle":"https://pith.science/pith/C63K32E3XDOVWYLAI3VKT7Y7SJ/bundle.json","state":"https://pith.science/pith/C63K32E3XDOVWYLAI3VKT7Y7SJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/C63K32E3XDOVWYLAI3VKT7Y7SJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:C63K32E3XDOVWYLAI3VKT7Y7SJ","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":"247d03184ff86e68d3a1e1ea1f0d8422232cb4baf8fd164823fec8b2fbbbab49","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-09-16T07:27:27Z","title_canon_sha256":"4cba96337279d5e1f3627018b0ede2f6bbc0509d15627a846f4e57c10a5da14f"},"schema_version":"1.0","source":{"id":"2209.07755","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.07755","created_at":"2026-07-05T04:58:09Z"},{"alias_kind":"arxiv_version","alias_value":"2209.07755v1","created_at":"2026-07-05T04:58:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.07755","created_at":"2026-07-05T04:58:09Z"},{"alias_kind":"pith_short_12","alias_value":"C63K32E3XDOV","created_at":"2026-07-05T04:58:09Z"},{"alias_kind":"pith_short_16","alias_value":"C63K32E3XDOVWYLA","created_at":"2026-07-05T04:58:09Z"},{"alias_kind":"pith_short_8","alias_value":"C63K32E3","created_at":"2026-07-05T04:58:09Z"}],"graph_snapshots":[{"event_id":"sha256:fc44ac327a2c293a6d71805072912afe4cab988c0575b02f5ee7659582b7f4fc","target":"graph","created_at":"2026-07-05T04:58:09Z","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/2209.07755/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"MAXI J1421-613 is an X-ray burster discovered by Monitor of All-sky X-ray Image (MAXI) on 9 January 2014 and is considered to be a low-mass X-ray binary. A previous study analyzing follow-up observation data obtained by Suzaku on 31 January to 3 February 2014 reported that an annular emission of ~3'-9' radius was found around the transient source. The most plausible origin of the annular emission is a dust scattering echo by the outburst of MAXI J1421-613. In this paper, we confirm the annular emission by analyzing the data of the Swift follow-up observation which was conducted by the photon c","authors_text":"Kumiko K. Nobukawa, Masayoshi Nobukawa, Shigeo Yamauchi","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-09-16T07:27:27Z","title":"Confirmation of dust scattering echo around MAXI J1421-613 by Swift observation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.07755","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:f377884157d4c58065a685014f585ba1151d92d6769f86a3d5dd2139e0ae51cc","target":"record","created_at":"2026-07-05T04:58:09Z","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":"247d03184ff86e68d3a1e1ea1f0d8422232cb4baf8fd164823fec8b2fbbbab49","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-09-16T07:27:27Z","title_canon_sha256":"4cba96337279d5e1f3627018b0ede2f6bbc0509d15627a846f4e57c10a5da14f"},"schema_version":"1.0","source":{"id":"2209.07755","kind":"arxiv","version":1}},"canonical_sha256":"17b6ade89bb8dd5b616046eaa9ff1f92729f94736748c3ff7b2c9499f35ae09f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"17b6ade89bb8dd5b616046eaa9ff1f92729f94736748c3ff7b2c9499f35ae09f","first_computed_at":"2026-07-05T04:58:09.482893Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:58:09.482893Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rPl9NPo6rHjVSKnDLL/KsOiphHnrDLnyUH+jPKLcuF1iuhMWNP2PCWOThr0+l9SSA4OPI/f63pP51Ule79ZUDA==","signature_status":"signed_v1","signed_at":"2026-07-05T04:58:09.483220Z","signed_message":"canonical_sha256_bytes"},"source_id":"2209.07755","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f377884157d4c58065a685014f585ba1151d92d6769f86a3d5dd2139e0ae51cc","sha256:fc44ac327a2c293a6d71805072912afe4cab988c0575b02f5ee7659582b7f4fc"],"state_sha256":"60f280c334c85b07764105a83c1f13364f829a89db25f335a91dff9565224bb0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XVMat0on5zossHk5L3LrDbfmEiTU/Mj7pS001YViqDi2UFvi7px6jVnFTR70LeBpXUji4mXTBvS3bmiLwEpMDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T04:15:59.264630Z","bundle_sha256":"16afc92f063b93266e17267cbc7131747c2d486b3957943403899ff4c1bf4d2e"}}