{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:UEUYYP4MWJZLOHVUEWXO7VFFA3","short_pith_number":"pith:UEUYYP4M","canonical_record":{"source":{"id":"2004.06992","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-04-15T10:37:55Z","cross_cats_sorted":[],"title_canon_sha256":"ff6895ef66670ba1ebe2754b9c8568d2163870a3f671255ca6e774b948ce9b2a","abstract_canon_sha256":"0569b59365239f9baa306cd114f04eea1c1d5bd0f684d1dc75e08d94538464c0"},"schema_version":"1.0"},"canonical_sha256":"a1298c3f8cb272b71eb425aeefd4a506df79d98a190ea7fb42986fde4b7c57c4","source":{"kind":"arxiv","id":"2004.06992","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2004.06992","created_at":"2026-07-05T01:38:35Z"},{"alias_kind":"arxiv_version","alias_value":"2004.06992v1","created_at":"2026-07-05T01:38:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.06992","created_at":"2026-07-05T01:38:35Z"},{"alias_kind":"pith_short_12","alias_value":"UEUYYP4MWJZL","created_at":"2026-07-05T01:38:35Z"},{"alias_kind":"pith_short_16","alias_value":"UEUYYP4MWJZLOHVU","created_at":"2026-07-05T01:38:35Z"},{"alias_kind":"pith_short_8","alias_value":"UEUYYP4M","created_at":"2026-07-05T01:38:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:UEUYYP4MWJZLOHVUEWXO7VFFA3","target":"record","payload":{"canonical_record":{"source":{"id":"2004.06992","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-04-15T10:37:55Z","cross_cats_sorted":[],"title_canon_sha256":"ff6895ef66670ba1ebe2754b9c8568d2163870a3f671255ca6e774b948ce9b2a","abstract_canon_sha256":"0569b59365239f9baa306cd114f04eea1c1d5bd0f684d1dc75e08d94538464c0"},"schema_version":"1.0"},"canonical_sha256":"a1298c3f8cb272b71eb425aeefd4a506df79d98a190ea7fb42986fde4b7c57c4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:38:35.907494Z","signature_b64":"zbjZSw0vk1+TTiz1Sl0WcLEatuVpysGnvsLUk8zWwyI5D0XOmkS7WehtvA9TEzYud+XrT8LA4Juh9jINrM2tCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a1298c3f8cb272b71eb425aeefd4a506df79d98a190ea7fb42986fde4b7c57c4","last_reissued_at":"2026-07-05T01:38:35.907098Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:38:35.907098Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2004.06992","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":"2026-07-05T01:38:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wZ3902EoN2Lauxk8TAD84snXJZHhUtxTad7K/GpHPapPI0oL3YnJ6EDduJWXh2wXoS2AGsKWBHjBkeIFgWyoDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T01:55:42.941544Z"},"content_sha256":"f087cbeb513d8f3d8416aa1a93451aab8dd5e4d91128dc1e6112e15b7683899c","schema_version":"1.0","event_id":"sha256:f087cbeb513d8f3d8416aa1a93451aab8dd5e4d91128dc1e6112e15b7683899c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:UEUYYP4MWJZLOHVUEWXO7VFFA3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Investigating the morphology of the supernova remnant G349.7+00.2 in the medium with a density gradient","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Chun-Yan Lu, Huan Yu, Jing-Wen Yan, Jun Fang, Lu Wen","submitted_at":"2020-04-15T10:37:55Z","abstract_excerpt":"G349.7 + 00.2 is a young Galactic supernova remnant (SNR) with a mushroom morphology in radio and X-rays, and it has been detected across the entire electromagnetic spectrum from radio to high energy $\\gamma$-rays. Moreover, the remnant is interacting with a molecular cloud based on the observations in the radio and infrared band. The reason for the formation of the periphery and the dynamical evolution of the remnant are investigated using 3D hydrodynamical (HD) simulations. Under the assumption that the supernova ejecta is evolved in the medium with a density gradient, the shell is composed "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.06992","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/2004.06992/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":"2026-07-05T01:38:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ed16/mRwrn9zgL1H449bD7ZMFNWGyvIOXe0IBU7p1AKOImjQqyq4HvHsX485o6UII7FE1QdKArwLNerXZH+sCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T01:55:42.941993Z"},"content_sha256":"08ccf4eec5ee4c67642e44a1048d0b1ce3e72981dfeab2f605eae9cea3faf2c1","schema_version":"1.0","event_id":"sha256:08ccf4eec5ee4c67642e44a1048d0b1ce3e72981dfeab2f605eae9cea3faf2c1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UEUYYP4MWJZLOHVUEWXO7VFFA3/bundle.json","state_url":"https://pith.science/pith/UEUYYP4MWJZLOHVUEWXO7VFFA3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UEUYYP4MWJZLOHVUEWXO7VFFA3/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":"2026-08-15T01:55:42Z","links":{"resolver":"https://pith.science/pith/UEUYYP4MWJZLOHVUEWXO7VFFA3","bundle":"https://pith.science/pith/UEUYYP4MWJZLOHVUEWXO7VFFA3/bundle.json","state":"https://pith.science/pith/UEUYYP4MWJZLOHVUEWXO7VFFA3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UEUYYP4MWJZLOHVUEWXO7VFFA3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:UEUYYP4MWJZLOHVUEWXO7VFFA3","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":"0569b59365239f9baa306cd114f04eea1c1d5bd0f684d1dc75e08d94538464c0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-04-15T10:37:55Z","title_canon_sha256":"ff6895ef66670ba1ebe2754b9c8568d2163870a3f671255ca6e774b948ce9b2a"},"schema_version":"1.0","source":{"id":"2004.06992","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2004.06992","created_at":"2026-07-05T01:38:35Z"},{"alias_kind":"arxiv_version","alias_value":"2004.06992v1","created_at":"2026-07-05T01:38:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.06992","created_at":"2026-07-05T01:38:35Z"},{"alias_kind":"pith_short_12","alias_value":"UEUYYP4MWJZL","created_at":"2026-07-05T01:38:35Z"},{"alias_kind":"pith_short_16","alias_value":"UEUYYP4MWJZLOHVU","created_at":"2026-07-05T01:38:35Z"},{"alias_kind":"pith_short_8","alias_value":"UEUYYP4M","created_at":"2026-07-05T01:38:35Z"}],"graph_snapshots":[{"event_id":"sha256:08ccf4eec5ee4c67642e44a1048d0b1ce3e72981dfeab2f605eae9cea3faf2c1","target":"graph","created_at":"2026-07-05T01:38:35Z","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/2004.06992/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"G349.7 + 00.2 is a young Galactic supernova remnant (SNR) with a mushroom morphology in radio and X-rays, and it has been detected across the entire electromagnetic spectrum from radio to high energy $\\gamma$-rays. Moreover, the remnant is interacting with a molecular cloud based on the observations in the radio and infrared band. The reason for the formation of the periphery and the dynamical evolution of the remnant are investigated using 3D hydrodynamical (HD) simulations. Under the assumption that the supernova ejecta is evolved in the medium with a density gradient, the shell is composed ","authors_text":"Chun-Yan Lu, Huan Yu, Jing-Wen Yan, Jun Fang, Lu Wen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-04-15T10:37:55Z","title":"Investigating the morphology of the supernova remnant G349.7+00.2 in the medium with a density gradient"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.06992","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:f087cbeb513d8f3d8416aa1a93451aab8dd5e4d91128dc1e6112e15b7683899c","target":"record","created_at":"2026-07-05T01:38:35Z","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":"0569b59365239f9baa306cd114f04eea1c1d5bd0f684d1dc75e08d94538464c0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-04-15T10:37:55Z","title_canon_sha256":"ff6895ef66670ba1ebe2754b9c8568d2163870a3f671255ca6e774b948ce9b2a"},"schema_version":"1.0","source":{"id":"2004.06992","kind":"arxiv","version":1}},"canonical_sha256":"a1298c3f8cb272b71eb425aeefd4a506df79d98a190ea7fb42986fde4b7c57c4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a1298c3f8cb272b71eb425aeefd4a506df79d98a190ea7fb42986fde4b7c57c4","first_computed_at":"2026-07-05T01:38:35.907098Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:38:35.907098Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zbjZSw0vk1+TTiz1Sl0WcLEatuVpysGnvsLUk8zWwyI5D0XOmkS7WehtvA9TEzYud+XrT8LA4Juh9jINrM2tCA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:38:35.907494Z","signed_message":"canonical_sha256_bytes"},"source_id":"2004.06992","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f087cbeb513d8f3d8416aa1a93451aab8dd5e4d91128dc1e6112e15b7683899c","sha256:08ccf4eec5ee4c67642e44a1048d0b1ce3e72981dfeab2f605eae9cea3faf2c1"],"state_sha256":"d672a6846d5ddd174388f77b28212e1e0aee66110a32a701abe1726dbc460d5e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tdhmLrcDzq5BRFvgfnjk6pQNzAQPh6OGvXFQEfhNfdyahGq++LwJbu4s3nnt4YuzNldSiGee4X2iV7gI6E5VAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T01:55:42.944827Z","bundle_sha256":"34995ca27dd1f0969032240618811a12d5df22a445bea2572df0a9d91c13874b"}}