{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:D4VGAWBGZXABITW6JFYL6ODKXR","short_pith_number":"pith:D4VGAWBG","canonical_record":{"source":{"id":"1804.02798","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-04-09T02:43:17Z","cross_cats_sorted":[],"title_canon_sha256":"b2ef1230ad90045edb44f1207d4a058264a85eeef07d1e1e567528c8897a3566","abstract_canon_sha256":"661764d07205fde5ed658c661894d2334c2319d44c12f70dc1ba688e7d493a55"},"schema_version":"1.0"},"canonical_sha256":"1f2a605826cdc0144ede4970bf386abc70d0220b008e6f04803509fed02446a6","source":{"kind":"arxiv","id":"1804.02798","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.02798","created_at":"2026-05-18T00:13:26Z"},{"alias_kind":"arxiv_version","alias_value":"1804.02798v4","created_at":"2026-05-18T00:13:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.02798","created_at":"2026-05-18T00:13:26Z"},{"alias_kind":"pith_short_12","alias_value":"D4VGAWBGZXAB","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"D4VGAWBGZXABITW6","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"D4VGAWBG","created_at":"2026-05-18T12:32:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:D4VGAWBGZXABITW6JFYL6ODKXR","target":"record","payload":{"canonical_record":{"source":{"id":"1804.02798","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-04-09T02:43:17Z","cross_cats_sorted":[],"title_canon_sha256":"b2ef1230ad90045edb44f1207d4a058264a85eeef07d1e1e567528c8897a3566","abstract_canon_sha256":"661764d07205fde5ed658c661894d2334c2319d44c12f70dc1ba688e7d493a55"},"schema_version":"1.0"},"canonical_sha256":"1f2a605826cdc0144ede4970bf386abc70d0220b008e6f04803509fed02446a6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:13:26.456536Z","signature_b64":"V0qdd+rz3Sx6Hkjk6LPcfxjYuf0iorl8kOO4B3I2NvSJjhXmBwdeLsySX3RKru8cgF/BkzF41LVrReh0f0/2Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1f2a605826cdc0144ede4970bf386abc70d0220b008e6f04803509fed02446a6","last_reissued_at":"2026-05-18T00:13:26.455840Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:13:26.455840Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.02798","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:13:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F7tZjF89422uxeMfaVh/uithUtW2UpPiDlw18aPrYwwhy/o59xNYafW+sT0osjxwA5jvRwlLEMdch80nnqEBAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T23:00:32.935737Z"},"content_sha256":"a51eb2073f4980c4bd3f98b53e618b22eadcda5fe955a79eec0bad11020441f4","schema_version":"1.0","event_id":"sha256:a51eb2073f4980c4bd3f98b53e618b22eadcda5fe955a79eec0bad11020441f4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:D4VGAWBGZXABITW6JFYL6ODKXR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Calibration and Limitations of the Mg II line-based Black Hole Masses","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Daeseong Park, Dawoo Park, Huynh Anh N. Le, Jong-Hak Woo, Marios Karouzos, Matthew A. Malkan, Tommaso Treu, Vardha N. Bennert","submitted_at":"2018-04-09T02:43:17Z","abstract_excerpt":"We present the single-epoch black hole mass (M$_{\\rm BH}$) calibrations based on the rest-frame UV and optical measurements of Mg II 2798\\AA\\ and H$\\beta$ 4861\\AA\\ lines and AGN continuum, using a sample of 52 moderate-luminosity AGNs at z$\\sim$0.4 and z$\\sim$0.6 with high-quality Keck spectra. We combine this sample with a large number of luminous AGNs from the Sloan Digital Sky Survey to increase the dynamic range for a better comparison of UV and optical velocity and luminosity measurements. With respect to the reference M$_{\\rm BH}$ based on the line dispersion of H$\\beta$ and continuum lu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.02798","kind":"arxiv","version":4},"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":"2026-05-18T00:13:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nMrgAGXu9duo6culnOMLH5+MG2WX8F+xhCmLQL7OeHxJVm10bS9PZrq0iODVmxrOI6Z7n6tbyU7X7Z1TBjQ+CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T23:00:32.936078Z"},"content_sha256":"b9f2b8e2009d533c42fb92ba119804a44724b4b653f2d51be3641c9aa4513d53","schema_version":"1.0","event_id":"sha256:b9f2b8e2009d533c42fb92ba119804a44724b4b653f2d51be3641c9aa4513d53"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/D4VGAWBGZXABITW6JFYL6ODKXR/bundle.json","state_url":"https://pith.science/pith/D4VGAWBGZXABITW6JFYL6ODKXR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/D4VGAWBGZXABITW6JFYL6ODKXR/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":"2026-06-02T23:00:32Z","links":{"resolver":"https://pith.science/pith/D4VGAWBGZXABITW6JFYL6ODKXR","bundle":"https://pith.science/pith/D4VGAWBGZXABITW6JFYL6ODKXR/bundle.json","state":"https://pith.science/pith/D4VGAWBGZXABITW6JFYL6ODKXR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/D4VGAWBGZXABITW6JFYL6ODKXR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:D4VGAWBGZXABITW6JFYL6ODKXR","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":"661764d07205fde5ed658c661894d2334c2319d44c12f70dc1ba688e7d493a55","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-04-09T02:43:17Z","title_canon_sha256":"b2ef1230ad90045edb44f1207d4a058264a85eeef07d1e1e567528c8897a3566"},"schema_version":"1.0","source":{"id":"1804.02798","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.02798","created_at":"2026-05-18T00:13:26Z"},{"alias_kind":"arxiv_version","alias_value":"1804.02798v4","created_at":"2026-05-18T00:13:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.02798","created_at":"2026-05-18T00:13:26Z"},{"alias_kind":"pith_short_12","alias_value":"D4VGAWBGZXAB","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"D4VGAWBGZXABITW6","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"D4VGAWBG","created_at":"2026-05-18T12:32:19Z"}],"graph_snapshots":[{"event_id":"sha256:b9f2b8e2009d533c42fb92ba119804a44724b4b653f2d51be3641c9aa4513d53","target":"graph","created_at":"2026-05-18T00:13:26Z","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":"We present the single-epoch black hole mass (M$_{\\rm BH}$) calibrations based on the rest-frame UV and optical measurements of Mg II 2798\\AA\\ and H$\\beta$ 4861\\AA\\ lines and AGN continuum, using a sample of 52 moderate-luminosity AGNs at z$\\sim$0.4 and z$\\sim$0.6 with high-quality Keck spectra. We combine this sample with a large number of luminous AGNs from the Sloan Digital Sky Survey to increase the dynamic range for a better comparison of UV and optical velocity and luminosity measurements. With respect to the reference M$_{\\rm BH}$ based on the line dispersion of H$\\beta$ and continuum lu","authors_text":"Daeseong Park, Dawoo Park, Huynh Anh N. Le, Jong-Hak Woo, Marios Karouzos, Matthew A. Malkan, Tommaso Treu, Vardha N. Bennert","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-04-09T02:43:17Z","title":"Calibration and Limitations of the Mg II line-based Black Hole Masses"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.02798","kind":"arxiv","version":4},"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:a51eb2073f4980c4bd3f98b53e618b22eadcda5fe955a79eec0bad11020441f4","target":"record","created_at":"2026-05-18T00:13:26Z","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":"661764d07205fde5ed658c661894d2334c2319d44c12f70dc1ba688e7d493a55","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-04-09T02:43:17Z","title_canon_sha256":"b2ef1230ad90045edb44f1207d4a058264a85eeef07d1e1e567528c8897a3566"},"schema_version":"1.0","source":{"id":"1804.02798","kind":"arxiv","version":4}},"canonical_sha256":"1f2a605826cdc0144ede4970bf386abc70d0220b008e6f04803509fed02446a6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1f2a605826cdc0144ede4970bf386abc70d0220b008e6f04803509fed02446a6","first_computed_at":"2026-05-18T00:13:26.455840Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:13:26.455840Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"V0qdd+rz3Sx6Hkjk6LPcfxjYuf0iorl8kOO4B3I2NvSJjhXmBwdeLsySX3RKru8cgF/BkzF41LVrReh0f0/2Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:13:26.456536Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.02798","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a51eb2073f4980c4bd3f98b53e618b22eadcda5fe955a79eec0bad11020441f4","sha256:b9f2b8e2009d533c42fb92ba119804a44724b4b653f2d51be3641c9aa4513d53"],"state_sha256":"c9fa6cdfdfbdb734368d5bc9da8cb3f7b24d72b08c5dc6cbb87519f44d6ce1e0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3LpdRBN8kMXmBP3ON9rc/rgS+CN1Y921kiF9f//LZtdFBc3yJnccGzOjWxjH3fhT+OVIuOq6CnjWkgBrD3nlDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T23:00:32.938028Z","bundle_sha256":"5d9423efd0e50fe118f7b6f6391828c9c064d9befc9104aaf837b3b0303fca69"}}