{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:Y5PHN2ZMV5H6JCRT62PNUMFTQV","short_pith_number":"pith:Y5PHN2ZM","canonical_record":{"source":{"id":"1010.2697","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-10-13T16:37:24Z","cross_cats_sorted":[],"title_canon_sha256":"60ff20a5209ff88ee505ef44aac6d2ac2e37b56cb61e21941257fd618c04b2bb","abstract_canon_sha256":"990f42d75bbaa093e88a162ea4964a49400c20e2a9e0973362993c1884e2ad78"},"schema_version":"1.0"},"canonical_sha256":"c75e76eb2caf4fe48a33f69eda30b385567c7a7912143e52b803b8c5e8ef0407","source":{"kind":"arxiv","id":"1010.2697","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1010.2697","created_at":"2026-05-18T02:05:05Z"},{"alias_kind":"arxiv_version","alias_value":"1010.2697v1","created_at":"2026-05-18T02:05:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.2697","created_at":"2026-05-18T02:05:05Z"},{"alias_kind":"pith_short_12","alias_value":"Y5PHN2ZMV5H6","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"Y5PHN2ZMV5H6JCRT","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"Y5PHN2ZM","created_at":"2026-05-18T12:26:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:Y5PHN2ZMV5H6JCRT62PNUMFTQV","target":"record","payload":{"canonical_record":{"source":{"id":"1010.2697","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-10-13T16:37:24Z","cross_cats_sorted":[],"title_canon_sha256":"60ff20a5209ff88ee505ef44aac6d2ac2e37b56cb61e21941257fd618c04b2bb","abstract_canon_sha256":"990f42d75bbaa093e88a162ea4964a49400c20e2a9e0973362993c1884e2ad78"},"schema_version":"1.0"},"canonical_sha256":"c75e76eb2caf4fe48a33f69eda30b385567c7a7912143e52b803b8c5e8ef0407","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:05:05.514644Z","signature_b64":"L5xcJDw49aS2H5G5jihQzJdKi7/NE/8BMobSgLIcAOXPf87ChihdOzq/I65RLq0MKow71H/LduZaOWrJzV0VBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c75e76eb2caf4fe48a33f69eda30b385567c7a7912143e52b803b8c5e8ef0407","last_reissued_at":"2026-05-18T02:05:05.513872Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:05:05.513872Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1010.2697","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":"2026-05-18T02:05:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FUAN8rG4CtAz3yewuU38+fJyA8EOuPupKOF+SQJwKFSHM832Kbt0m1H972LolBiRMtyavOUjKXRnjSCRPh9OBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T23:27:02.701613Z"},"content_sha256":"0a30189d9855511b13ec1b71328dcd36a3f965dddcb3a19f6d94c31cbe6033d2","schema_version":"1.0","event_id":"sha256:0a30189d9855511b13ec1b71328dcd36a3f965dddcb3a19f6d94c31cbe6033d2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:Y5PHN2ZMV5H6JCRT62PNUMFTQV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Massive Star Formation of the Sgr A East HII Regions Near the Galactic Center","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"B. Whitney, D. A. Roberts, F. Yusef-Zadeh, H. Bushouse, J.H. Lacy, M. Wardle, R.G. Arendt","submitted_at":"2010-10-13T16:37:24Z","abstract_excerpt":"A group of four compact HII regions associated with the well-known 50 km/s molecular cloud is the closest site of on-going star formation to the dynamical center of the Galaxy, at a projected distance of ~6 pc. We present a study of ionized gas based on the [NeII] (12.8 micron) line, as well as multi-frequency radio continuum, HST Pa alpha and Spitzer IRAC observations of the most compact member of the HII group, Sgr A East HII D. The radio continuum image at 6cm shows that this source breaks up into two equally bright ionized features, D1 and D2. The SED of the D source is consistent with it "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.2697","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":""},"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":"2026-05-18T02:05:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GdTZ62xvDkQGLDRbmJx0gvQ8H0HAcXF8wH25xTsimRx94Nw1eUFkUotQftEgcd5ebj9sHJc9thLMwoXPVaijDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T23:27:02.701948Z"},"content_sha256":"e19d97eba41dd8808838daaf1dd7eeac49321e1c0990d47c772ade0b05c290de","schema_version":"1.0","event_id":"sha256:e19d97eba41dd8808838daaf1dd7eeac49321e1c0990d47c772ade0b05c290de"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Y5PHN2ZMV5H6JCRT62PNUMFTQV/bundle.json","state_url":"https://pith.science/pith/Y5PHN2ZMV5H6JCRT62PNUMFTQV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Y5PHN2ZMV5H6JCRT62PNUMFTQV/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":"2026-06-27T23:27:02Z","links":{"resolver":"https://pith.science/pith/Y5PHN2ZMV5H6JCRT62PNUMFTQV","bundle":"https://pith.science/pith/Y5PHN2ZMV5H6JCRT62PNUMFTQV/bundle.json","state":"https://pith.science/pith/Y5PHN2ZMV5H6JCRT62PNUMFTQV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Y5PHN2ZMV5H6JCRT62PNUMFTQV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:Y5PHN2ZMV5H6JCRT62PNUMFTQV","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":"990f42d75bbaa093e88a162ea4964a49400c20e2a9e0973362993c1884e2ad78","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-10-13T16:37:24Z","title_canon_sha256":"60ff20a5209ff88ee505ef44aac6d2ac2e37b56cb61e21941257fd618c04b2bb"},"schema_version":"1.0","source":{"id":"1010.2697","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1010.2697","created_at":"2026-05-18T02:05:05Z"},{"alias_kind":"arxiv_version","alias_value":"1010.2697v1","created_at":"2026-05-18T02:05:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.2697","created_at":"2026-05-18T02:05:05Z"},{"alias_kind":"pith_short_12","alias_value":"Y5PHN2ZMV5H6","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"Y5PHN2ZMV5H6JCRT","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"Y5PHN2ZM","created_at":"2026-05-18T12:26:17Z"}],"graph_snapshots":[{"event_id":"sha256:e19d97eba41dd8808838daaf1dd7eeac49321e1c0990d47c772ade0b05c290de","target":"graph","created_at":"2026-05-18T02:05:05Z","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":"A group of four compact HII regions associated with the well-known 50 km/s molecular cloud is the closest site of on-going star formation to the dynamical center of the Galaxy, at a projected distance of ~6 pc. We present a study of ionized gas based on the [NeII] (12.8 micron) line, as well as multi-frequency radio continuum, HST Pa alpha and Spitzer IRAC observations of the most compact member of the HII group, Sgr A East HII D. The radio continuum image at 6cm shows that this source breaks up into two equally bright ionized features, D1 and D2. The SED of the D source is consistent with it ","authors_text":"B. Whitney, D. A. Roberts, F. Yusef-Zadeh, H. Bushouse, J.H. Lacy, M. Wardle, R.G. Arendt","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-10-13T16:37:24Z","title":"Massive Star Formation of the Sgr A East HII Regions Near the Galactic Center"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.2697","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":"sha256:0a30189d9855511b13ec1b71328dcd36a3f965dddcb3a19f6d94c31cbe6033d2","target":"record","created_at":"2026-05-18T02:05:05Z","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":"990f42d75bbaa093e88a162ea4964a49400c20e2a9e0973362993c1884e2ad78","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-10-13T16:37:24Z","title_canon_sha256":"60ff20a5209ff88ee505ef44aac6d2ac2e37b56cb61e21941257fd618c04b2bb"},"schema_version":"1.0","source":{"id":"1010.2697","kind":"arxiv","version":1}},"canonical_sha256":"c75e76eb2caf4fe48a33f69eda30b385567c7a7912143e52b803b8c5e8ef0407","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c75e76eb2caf4fe48a33f69eda30b385567c7a7912143e52b803b8c5e8ef0407","first_computed_at":"2026-05-18T02:05:05.513872Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:05:05.513872Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"L5xcJDw49aS2H5G5jihQzJdKi7/NE/8BMobSgLIcAOXPf87ChihdOzq/I65RLq0MKow71H/LduZaOWrJzV0VBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:05:05.514644Z","signed_message":"canonical_sha256_bytes"},"source_id":"1010.2697","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0a30189d9855511b13ec1b71328dcd36a3f965dddcb3a19f6d94c31cbe6033d2","sha256:e19d97eba41dd8808838daaf1dd7eeac49321e1c0990d47c772ade0b05c290de"],"state_sha256":"6d071eaccbd196066e22789a2626c199aecae2c45dff59edcfc4446ed0ab77f5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aEtzXnpZQDyY1fkyj+4+SbBj85i2dOPq+wFZiwD80AroOqr1gPNqCIrQAP5x/ncpRdUbc9uh0vIFxYNtdzRFBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-27T23:27:02.703811Z","bundle_sha256":"e9bed96301bafb81152f0fc26aed9eb1a3b2118753e80f79236a8bc0d872dacf"}}