{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:KGDXR5LTGP7H2CNNTYAAAWRIVV","short_pith_number":"pith:KGDXR5LT","canonical_record":{"source":{"id":"1710.03419","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-10-10T06:45:00Z","cross_cats_sorted":[],"title_canon_sha256":"308e75dbac64d364cea1399050b4a63055fd87db860f82b2aabf89c3b3e7a2ef","abstract_canon_sha256":"ed332d2d2f1bd7e9a1d70822ffc4e7fd310f212b802aa5b323f71a30c384257e"},"schema_version":"1.0"},"canonical_sha256":"518778f57333fe7d09ad9e00005a28ad6f8573d11d2a6fdca4f56f2f3d01946a","source":{"kind":"arxiv","id":"1710.03419","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.03419","created_at":"2026-05-18T00:33:12Z"},{"alias_kind":"arxiv_version","alias_value":"1710.03419v1","created_at":"2026-05-18T00:33:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.03419","created_at":"2026-05-18T00:33:12Z"},{"alias_kind":"pith_short_12","alias_value":"KGDXR5LTGP7H","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"KGDXR5LTGP7H2CNN","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"KGDXR5LT","created_at":"2026-05-18T12:31:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:KGDXR5LTGP7H2CNNTYAAAWRIVV","target":"record","payload":{"canonical_record":{"source":{"id":"1710.03419","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-10-10T06:45:00Z","cross_cats_sorted":[],"title_canon_sha256":"308e75dbac64d364cea1399050b4a63055fd87db860f82b2aabf89c3b3e7a2ef","abstract_canon_sha256":"ed332d2d2f1bd7e9a1d70822ffc4e7fd310f212b802aa5b323f71a30c384257e"},"schema_version":"1.0"},"canonical_sha256":"518778f57333fe7d09ad9e00005a28ad6f8573d11d2a6fdca4f56f2f3d01946a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:33:12.007948Z","signature_b64":"hl0XPB68Oc0xCtvcAODLdSGX9BIKp1U3Waq+RFbolHCkoav+zIpKOePyr6em6bFX/GQujwnl5LIcApI2pK2lBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"518778f57333fe7d09ad9e00005a28ad6f8573d11d2a6fdca4f56f2f3d01946a","last_reissued_at":"2026-05-18T00:33:12.007453Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:33:12.007453Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1710.03419","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":"2026-05-18T00:33:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vjMsxYk6CGZh6aSIAsIAkD5d2W21wShF5JljquDWwJCacAI+dcD5vb5Sez31cBk5ClTLxsdRuX5c135Efu9wCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T10:51:36.414631Z"},"content_sha256":"6706357b32a9e92afdc20541aa021e3b23d9c053ae8dba53c6228d4a1181f521","schema_version":"1.0","event_id":"sha256:6706357b32a9e92afdc20541aa021e3b23d9c053ae8dba53c6228d4a1181f521"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:KGDXR5LTGP7H2CNNTYAAAWRIVV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Tidally disrupted dusty clumps as the origin of broad emission lines in active galactic nuclei","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"2, (2) UCAS, 3), (3) NAOC, (4) Wyoming U., (5) Nanjing U), Chen Hu (1), Jian-Min Wang (1, Michael S. Brotherton (4), Pu Du (1), Yan-Rong Li (1), Yong Shi (5), Yu-Yang Songsheng (1), Zhi-Xiang Zhang (1) ((1) IHEP","submitted_at":"2017-10-10T06:45:00Z","abstract_excerpt":"Type 1 active galactic nuclei display broad emission lines, regarded as arising from photoionized gas moving in the gravitational potential of a supermassive black hole. The origin of this broad-line region gas is unresolved so far, however. Another component is the dusty torus beyond the broad-line region, likely an assembly of discrete clumps that can hide the region from some viewing angles and make them observationally appear as Type 2 objects. Here we report that these clumps moving within the dust sublimation radius, like the molecular cloud G2 discovered in the Galactic center, will be "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.03419","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":"2026-05-18T00:33:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9elh09M2JTcC/BSsRd9AHCuVHa0fhDQq/ZqYWOvICRwQg0L8XWjPu+00s0AfvxyzS/gd0S+9D9ipzVEgdpTrDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T10:51:36.415010Z"},"content_sha256":"79f73fd58e8e7bba8f0ce45f1fad2c0b7f16c7ab2194a23d23fdc482b66e25b6","schema_version":"1.0","event_id":"sha256:79f73fd58e8e7bba8f0ce45f1fad2c0b7f16c7ab2194a23d23fdc482b66e25b6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KGDXR5LTGP7H2CNNTYAAAWRIVV/bundle.json","state_url":"https://pith.science/pith/KGDXR5LTGP7H2CNNTYAAAWRIVV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KGDXR5LTGP7H2CNNTYAAAWRIVV/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":"2026-05-24T10:51:36Z","links":{"resolver":"https://pith.science/pith/KGDXR5LTGP7H2CNNTYAAAWRIVV","bundle":"https://pith.science/pith/KGDXR5LTGP7H2CNNTYAAAWRIVV/bundle.json","state":"https://pith.science/pith/KGDXR5LTGP7H2CNNTYAAAWRIVV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KGDXR5LTGP7H2CNNTYAAAWRIVV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:KGDXR5LTGP7H2CNNTYAAAWRIVV","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":"ed332d2d2f1bd7e9a1d70822ffc4e7fd310f212b802aa5b323f71a30c384257e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-10-10T06:45:00Z","title_canon_sha256":"308e75dbac64d364cea1399050b4a63055fd87db860f82b2aabf89c3b3e7a2ef"},"schema_version":"1.0","source":{"id":"1710.03419","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.03419","created_at":"2026-05-18T00:33:12Z"},{"alias_kind":"arxiv_version","alias_value":"1710.03419v1","created_at":"2026-05-18T00:33:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.03419","created_at":"2026-05-18T00:33:12Z"},{"alias_kind":"pith_short_12","alias_value":"KGDXR5LTGP7H","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"KGDXR5LTGP7H2CNN","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"KGDXR5LT","created_at":"2026-05-18T12:31:24Z"}],"graph_snapshots":[{"event_id":"sha256:79f73fd58e8e7bba8f0ce45f1fad2c0b7f16c7ab2194a23d23fdc482b66e25b6","target":"graph","created_at":"2026-05-18T00:33:12Z","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":"Type 1 active galactic nuclei display broad emission lines, regarded as arising from photoionized gas moving in the gravitational potential of a supermassive black hole. The origin of this broad-line region gas is unresolved so far, however. Another component is the dusty torus beyond the broad-line region, likely an assembly of discrete clumps that can hide the region from some viewing angles and make them observationally appear as Type 2 objects. Here we report that these clumps moving within the dust sublimation radius, like the molecular cloud G2 discovered in the Galactic center, will be ","authors_text":"2, (2) UCAS, 3), (3) NAOC, (4) Wyoming U., (5) Nanjing U), Chen Hu (1), Jian-Min Wang (1, Michael S. Brotherton (4), Pu Du (1), Yan-Rong Li (1), Yong Shi (5), Yu-Yang Songsheng (1), Zhi-Xiang Zhang (1) ((1) IHEP","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-10-10T06:45:00Z","title":"Tidally disrupted dusty clumps as the origin of broad emission lines in active galactic nuclei"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.03419","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":"sha256:6706357b32a9e92afdc20541aa021e3b23d9c053ae8dba53c6228d4a1181f521","target":"record","created_at":"2026-05-18T00:33:12Z","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":"ed332d2d2f1bd7e9a1d70822ffc4e7fd310f212b802aa5b323f71a30c384257e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-10-10T06:45:00Z","title_canon_sha256":"308e75dbac64d364cea1399050b4a63055fd87db860f82b2aabf89c3b3e7a2ef"},"schema_version":"1.0","source":{"id":"1710.03419","kind":"arxiv","version":1}},"canonical_sha256":"518778f57333fe7d09ad9e00005a28ad6f8573d11d2a6fdca4f56f2f3d01946a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"518778f57333fe7d09ad9e00005a28ad6f8573d11d2a6fdca4f56f2f3d01946a","first_computed_at":"2026-05-18T00:33:12.007453Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:33:12.007453Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hl0XPB68Oc0xCtvcAODLdSGX9BIKp1U3Waq+RFbolHCkoav+zIpKOePyr6em6bFX/GQujwnl5LIcApI2pK2lBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:33:12.007948Z","signed_message":"canonical_sha256_bytes"},"source_id":"1710.03419","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6706357b32a9e92afdc20541aa021e3b23d9c053ae8dba53c6228d4a1181f521","sha256:79f73fd58e8e7bba8f0ce45f1fad2c0b7f16c7ab2194a23d23fdc482b66e25b6"],"state_sha256":"ac083826904f982bbfafb8768489fb92320428d515e876618e2cb07dd3363522"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZJjlCpy6neHJX8DILQseXx+2W90lomCK/QQWzghs8b48qzVhrroTSjAZVo3l5sftuLZf4EwgSORpQY8s0AdUDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-24T10:51:36.417860Z","bundle_sha256":"0a904d3b8c45ea9f6c40335c03419ffe2d7d092b226b1bfd93fddde2d11e558c"}}