{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:FZS7C4CVE5P6IFB4K6G447HG45","short_pith_number":"pith:FZS7C4CV","canonical_record":{"source":{"id":"1102.4621","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-02-22T21:03:32Z","cross_cats_sorted":[],"title_canon_sha256":"b0013767c2cec061508116d385c78a5e3fe0b8baa55c699c8b1c3fdc9564678a","abstract_canon_sha256":"85d1e739817a3d06a127fedb444b6987913397c1d9cfcba8744c3d10d0f3ce50"},"schema_version":"1.0"},"canonical_sha256":"2e65f17055275fe4143c578dce7ce6e757dd7d14a40943a0816533f9266d0d72","source":{"kind":"arxiv","id":"1102.4621","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1102.4621","created_at":"2026-05-18T02:03:06Z"},{"alias_kind":"arxiv_version","alias_value":"1102.4621v1","created_at":"2026-05-18T02:03:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1102.4621","created_at":"2026-05-18T02:03:06Z"},{"alias_kind":"pith_short_12","alias_value":"FZS7C4CVE5P6","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"FZS7C4CVE5P6IFB4","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"FZS7C4CV","created_at":"2026-05-18T12:26:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:FZS7C4CVE5P6IFB4K6G447HG45","target":"record","payload":{"canonical_record":{"source":{"id":"1102.4621","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-02-22T21:03:32Z","cross_cats_sorted":[],"title_canon_sha256":"b0013767c2cec061508116d385c78a5e3fe0b8baa55c699c8b1c3fdc9564678a","abstract_canon_sha256":"85d1e739817a3d06a127fedb444b6987913397c1d9cfcba8744c3d10d0f3ce50"},"schema_version":"1.0"},"canonical_sha256":"2e65f17055275fe4143c578dce7ce6e757dd7d14a40943a0816533f9266d0d72","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:03:06.287206Z","signature_b64":"HpnW5Y8p9ZDy9fVckN2r/DZGP/XZdIQuM73uPmk65No3VykH3yqKdYjMIE8UgzHjr5k5RFx1CWO4Uri34GBhBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2e65f17055275fe4143c578dce7ce6e757dd7d14a40943a0816533f9266d0d72","last_reissued_at":"2026-05-18T02:03:06.286422Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:03:06.286422Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1102.4621","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":"2026-05-18T02:03:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y+ij14F4lT+44WIUGaO+1qsbOTEudk0BV+ErRuwd8a6e6kvJqEwYgrvNWl08zJP/SPWKnMeCp6N+GLB/+nyRCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T10:25:55.450144Z"},"content_sha256":"a41e6b53d1aed258ffe690bc8d7662cd59356922fe4ac362b18b993a10108567","schema_version":"1.0","event_id":"sha256:a41e6b53d1aed258ffe690bc8d7662cd59356922fe4ac362b18b993a10108567"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:FZS7C4CVE5P6IFB4K6G447HG45","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spectropolarimetric Evidence for Radiatively Inefficient Accretion in an Optically Dull Active Galaxy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Anton M. Koekemoer, Brandon C. Kelly, Christopher D. Impey, Francesca Civano, Hiro Ikeda, John T. Stocke, Jonathan R. Trump, Knud Jahnke, Martin Elvis, Takashi Murayama, Tohru Nagao, Yoshi Taniguchi","submitted_at":"2011-02-22T21:03:32Z","abstract_excerpt":"We present Subaru/FOCAS spectropolarimetry of two active galaxies in the Cosmic Evolution Survey. These objects were selected to be optically dull, with the bright X-ray emission of an AGN but missing optical emission lines in our previous spectroscopy. Our new observations show that one target has very weak emission lines consistent with an optically dull AGN, while the other object has strong emission lines typical of a host-diluted Type 2 Seyfert galaxy. In neither source do we observe polarized emission lines, with 3-sigma upper limits of P_BLR < 2%. This means that the missing broad emiss"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1102.4621","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":"2026-05-18T02:03:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uMJbUBBuIQes8fcOJ4j249GQK9uuFBl9Z+Hi64xsa/WFhmGrIGVsmHI565IcpbLBwCQlVdhajePoeiNWqQYXBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T10:25:55.450747Z"},"content_sha256":"d8a5fbd538dd08ca518872e4db3daaeaf6e3064c0659d9a21831fa77c47a4f5d","schema_version":"1.0","event_id":"sha256:d8a5fbd538dd08ca518872e4db3daaeaf6e3064c0659d9a21831fa77c47a4f5d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FZS7C4CVE5P6IFB4K6G447HG45/bundle.json","state_url":"https://pith.science/pith/FZS7C4CVE5P6IFB4K6G447HG45/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FZS7C4CVE5P6IFB4K6G447HG45/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":"2026-05-27T10:25:55Z","links":{"resolver":"https://pith.science/pith/FZS7C4CVE5P6IFB4K6G447HG45","bundle":"https://pith.science/pith/FZS7C4CVE5P6IFB4K6G447HG45/bundle.json","state":"https://pith.science/pith/FZS7C4CVE5P6IFB4K6G447HG45/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FZS7C4CVE5P6IFB4K6G447HG45/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:FZS7C4CVE5P6IFB4K6G447HG45","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":"85d1e739817a3d06a127fedb444b6987913397c1d9cfcba8744c3d10d0f3ce50","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-02-22T21:03:32Z","title_canon_sha256":"b0013767c2cec061508116d385c78a5e3fe0b8baa55c699c8b1c3fdc9564678a"},"schema_version":"1.0","source":{"id":"1102.4621","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1102.4621","created_at":"2026-05-18T02:03:06Z"},{"alias_kind":"arxiv_version","alias_value":"1102.4621v1","created_at":"2026-05-18T02:03:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1102.4621","created_at":"2026-05-18T02:03:06Z"},{"alias_kind":"pith_short_12","alias_value":"FZS7C4CVE5P6","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"FZS7C4CVE5P6IFB4","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"FZS7C4CV","created_at":"2026-05-18T12:26:28Z"}],"graph_snapshots":[{"event_id":"sha256:d8a5fbd538dd08ca518872e4db3daaeaf6e3064c0659d9a21831fa77c47a4f5d","target":"graph","created_at":"2026-05-18T02:03:06Z","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 Subaru/FOCAS spectropolarimetry of two active galaxies in the Cosmic Evolution Survey. These objects were selected to be optically dull, with the bright X-ray emission of an AGN but missing optical emission lines in our previous spectroscopy. Our new observations show that one target has very weak emission lines consistent with an optically dull AGN, while the other object has strong emission lines typical of a host-diluted Type 2 Seyfert galaxy. In neither source do we observe polarized emission lines, with 3-sigma upper limits of P_BLR < 2%. This means that the missing broad emiss","authors_text":"Anton M. Koekemoer, Brandon C. Kelly, Christopher D. Impey, Francesca Civano, Hiro Ikeda, John T. Stocke, Jonathan R. Trump, Knud Jahnke, Martin Elvis, Takashi Murayama, Tohru Nagao, Yoshi Taniguchi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-02-22T21:03:32Z","title":"Spectropolarimetric Evidence for Radiatively Inefficient Accretion in an Optically Dull Active Galaxy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1102.4621","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:a41e6b53d1aed258ffe690bc8d7662cd59356922fe4ac362b18b993a10108567","target":"record","created_at":"2026-05-18T02:03:06Z","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":"85d1e739817a3d06a127fedb444b6987913397c1d9cfcba8744c3d10d0f3ce50","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-02-22T21:03:32Z","title_canon_sha256":"b0013767c2cec061508116d385c78a5e3fe0b8baa55c699c8b1c3fdc9564678a"},"schema_version":"1.0","source":{"id":"1102.4621","kind":"arxiv","version":1}},"canonical_sha256":"2e65f17055275fe4143c578dce7ce6e757dd7d14a40943a0816533f9266d0d72","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2e65f17055275fe4143c578dce7ce6e757dd7d14a40943a0816533f9266d0d72","first_computed_at":"2026-05-18T02:03:06.286422Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:03:06.286422Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HpnW5Y8p9ZDy9fVckN2r/DZGP/XZdIQuM73uPmk65No3VykH3yqKdYjMIE8UgzHjr5k5RFx1CWO4Uri34GBhBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:03:06.287206Z","signed_message":"canonical_sha256_bytes"},"source_id":"1102.4621","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a41e6b53d1aed258ffe690bc8d7662cd59356922fe4ac362b18b993a10108567","sha256:d8a5fbd538dd08ca518872e4db3daaeaf6e3064c0659d9a21831fa77c47a4f5d"],"state_sha256":"169757c8f82a0da8d85ede47999106049c29f454dd686265f2f7e2652c74faf6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3Bqnz51vQOlf36cyX/HD6WTvnnulJz0rIwXT3qOp7QqgPeaqkvlk65jciASNIjq1MsYpc/J/I2mYfHg62ZlZCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T10:25:55.453842Z","bundle_sha256":"93837c00aeb40670d5e1c4df767f9899b0b5993b8a0d92111fb6ffb3b32836d3"}}