{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:XLDHW36VE54TNZITDCPY34DQYQ","short_pith_number":"pith:XLDHW36V","canonical_record":{"source":{"id":"1305.0325","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-05-02T02:06:40Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"d85407179d079c1d3dff6524f5a7a11359ddab4ea269d4c6a609083b9c78a898","abstract_canon_sha256":"4ef307851f77da6c2b74bdb36b538b5ad93655dca22624379ebaeec0d2519318"},"schema_version":"1.0"},"canonical_sha256":"bac67b6fd5277936e513189f8df070c40fa28a56a2265020e4afb5c1a45b8833","source":{"kind":"arxiv","id":"1305.0325","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.0325","created_at":"2026-05-18T01:50:13Z"},{"alias_kind":"arxiv_version","alias_value":"1305.0325v2","created_at":"2026-05-18T01:50:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.0325","created_at":"2026-05-18T01:50:13Z"},{"alias_kind":"pith_short_12","alias_value":"XLDHW36VE54T","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"XLDHW36VE54TNZIT","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"XLDHW36V","created_at":"2026-05-18T12:28:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:XLDHW36VE54TNZITDCPY34DQYQ","target":"record","payload":{"canonical_record":{"source":{"id":"1305.0325","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-05-02T02:06:40Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"d85407179d079c1d3dff6524f5a7a11359ddab4ea269d4c6a609083b9c78a898","abstract_canon_sha256":"4ef307851f77da6c2b74bdb36b538b5ad93655dca22624379ebaeec0d2519318"},"schema_version":"1.0"},"canonical_sha256":"bac67b6fd5277936e513189f8df070c40fa28a56a2265020e4afb5c1a45b8833","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:50:13.416342Z","signature_b64":"gtLmga2FtsRf1CjclfsTjxMWxgips1nQwEbyzMKhAQf3zKoGLAd721E8m/t9NNXCG4le9mq0sjonc83FDUudAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bac67b6fd5277936e513189f8df070c40fa28a56a2265020e4afb5c1a45b8833","last_reissued_at":"2026-05-18T01:50:13.415709Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:50:13.415709Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1305.0325","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":"2026-05-18T01:50:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kAYcwMXJWiTZXwpjNr1WXKjHIaJ9ufm9awmYun2J4vxWZtWX2bL/BVsdvrHVMITLVxlu3eAshUXwC1mHYQmoCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T04:26:09.428059Z"},"content_sha256":"ca4aeac6d51b08253b84f28e1c9b5f62617627ce3b9ef74e8c7f563556f66db6","schema_version":"1.0","event_id":"sha256:ca4aeac6d51b08253b84f28e1c9b5f62617627ce3b9ef74e8c7f563556f66db6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:XLDHW36VE54TNZITDCPY34DQYQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High velocity HI is not associated with TeV supernova remnant W51C","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.GA","authors_text":"D.A. Leahy, W.W. Tian","submitted_at":"2013-05-02T02:06:40Z","abstract_excerpt":"The recently-detected TeV gamma-ray source HESS J1923+141 coincides with Supernova Remnant (SNR) W51C and the star forming region W51B of the W51 complex. We construct HI absorption spectra to SNR W51C, HII regions G49.2-0.35 and G49.1-0.38 in W51B, and a nearby compact extragalactic source. Our study detects high-velocity (HV) HI clouds (above 83 km/s) which coincide with W51B, but finds that the clouds are behind W51B. Both W51C and G49.2-0.35 have have similar highest-velocity absorption features at ~70 km/s. The HII region G49.1-0.38 is behind the SNR because its HI absorption spectrum has"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.0325","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":"2026-05-18T01:50:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Jw0FJM1cuYYg+lODZ6zjq+QInq6Sm7ZkLDkiTHafo0EecH5CfDImMU0woEZJUV+vtyccRbEhf22k7r+4zNPgCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T04:26:09.428411Z"},"content_sha256":"05a5967c72b773facbad0d04a6adeb6e9824962e0e89dc3d69de88660e8a9c0d","schema_version":"1.0","event_id":"sha256:05a5967c72b773facbad0d04a6adeb6e9824962e0e89dc3d69de88660e8a9c0d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XLDHW36VE54TNZITDCPY34DQYQ/bundle.json","state_url":"https://pith.science/pith/XLDHW36VE54TNZITDCPY34DQYQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XLDHW36VE54TNZITDCPY34DQYQ/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":"2026-06-07T04:26:09Z","links":{"resolver":"https://pith.science/pith/XLDHW36VE54TNZITDCPY34DQYQ","bundle":"https://pith.science/pith/XLDHW36VE54TNZITDCPY34DQYQ/bundle.json","state":"https://pith.science/pith/XLDHW36VE54TNZITDCPY34DQYQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XLDHW36VE54TNZITDCPY34DQYQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:XLDHW36VE54TNZITDCPY34DQYQ","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":"4ef307851f77da6c2b74bdb36b538b5ad93655dca22624379ebaeec0d2519318","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-05-02T02:06:40Z","title_canon_sha256":"d85407179d079c1d3dff6524f5a7a11359ddab4ea269d4c6a609083b9c78a898"},"schema_version":"1.0","source":{"id":"1305.0325","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.0325","created_at":"2026-05-18T01:50:13Z"},{"alias_kind":"arxiv_version","alias_value":"1305.0325v2","created_at":"2026-05-18T01:50:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.0325","created_at":"2026-05-18T01:50:13Z"},{"alias_kind":"pith_short_12","alias_value":"XLDHW36VE54T","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"XLDHW36VE54TNZIT","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"XLDHW36V","created_at":"2026-05-18T12:28:06Z"}],"graph_snapshots":[{"event_id":"sha256:05a5967c72b773facbad0d04a6adeb6e9824962e0e89dc3d69de88660e8a9c0d","target":"graph","created_at":"2026-05-18T01:50:13Z","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":"The recently-detected TeV gamma-ray source HESS J1923+141 coincides with Supernova Remnant (SNR) W51C and the star forming region W51B of the W51 complex. We construct HI absorption spectra to SNR W51C, HII regions G49.2-0.35 and G49.1-0.38 in W51B, and a nearby compact extragalactic source. Our study detects high-velocity (HV) HI clouds (above 83 km/s) which coincide with W51B, but finds that the clouds are behind W51B. Both W51C and G49.2-0.35 have have similar highest-velocity absorption features at ~70 km/s. The HII region G49.1-0.38 is behind the SNR because its HI absorption spectrum has","authors_text":"D.A. Leahy, W.W. Tian","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-05-02T02:06:40Z","title":"High velocity HI is not associated with TeV supernova remnant W51C"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.0325","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:ca4aeac6d51b08253b84f28e1c9b5f62617627ce3b9ef74e8c7f563556f66db6","target":"record","created_at":"2026-05-18T01:50:13Z","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":"4ef307851f77da6c2b74bdb36b538b5ad93655dca22624379ebaeec0d2519318","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-05-02T02:06:40Z","title_canon_sha256":"d85407179d079c1d3dff6524f5a7a11359ddab4ea269d4c6a609083b9c78a898"},"schema_version":"1.0","source":{"id":"1305.0325","kind":"arxiv","version":2}},"canonical_sha256":"bac67b6fd5277936e513189f8df070c40fa28a56a2265020e4afb5c1a45b8833","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bac67b6fd5277936e513189f8df070c40fa28a56a2265020e4afb5c1a45b8833","first_computed_at":"2026-05-18T01:50:13.415709Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:50:13.415709Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gtLmga2FtsRf1CjclfsTjxMWxgips1nQwEbyzMKhAQf3zKoGLAd721E8m/t9NNXCG4le9mq0sjonc83FDUudAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:50:13.416342Z","signed_message":"canonical_sha256_bytes"},"source_id":"1305.0325","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ca4aeac6d51b08253b84f28e1c9b5f62617627ce3b9ef74e8c7f563556f66db6","sha256:05a5967c72b773facbad0d04a6adeb6e9824962e0e89dc3d69de88660e8a9c0d"],"state_sha256":"4f76f3526719176689529663d540527674ab7214d62a36495cec05afa9a34043"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ydJAq1E3A8tbPdlYqsqtE6jB6bfV6NyeCVGcUgubcnzF5zFIZ2idNzZRce6TIoUnjS97htPej0XFFnlhGTQyCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T04:26:09.431845Z","bundle_sha256":"3dadc04b2889e596c6d702b4d0a724d2c2e568e9bac3c76c42a3bb524a8718df"}}