{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:MBNKRV2KSP64CSR36HY3K6J7CX","short_pith_number":"pith:MBNKRV2K","canonical_record":{"source":{"id":"2605.27363","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-05-26T17:59:03Z","cross_cats_sorted":[],"title_canon_sha256":"44d85a2a646ec09555ca80c557a17abfd9a1dcf99008955ef962ffd8ca050e42","abstract_canon_sha256":"b226a93c8b524a6102e065ec1852a8b83f4e5ba42009f274a5d76dc729b7f899"},"schema_version":"1.0"},"canonical_sha256":"605aa8d74a93fdc14a3bf1f1b5793f15d4d7177632908853b88e21e5aa40a5da","source":{"kind":"arxiv","id":"2605.27363","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.27363","created_at":"2026-05-27T02:06:20Z"},{"alias_kind":"arxiv_version","alias_value":"2605.27363v1","created_at":"2026-05-27T02:06:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.27363","created_at":"2026-05-27T02:06:20Z"},{"alias_kind":"pith_short_12","alias_value":"MBNKRV2KSP64","created_at":"2026-05-27T02:06:20Z"},{"alias_kind":"pith_short_16","alias_value":"MBNKRV2KSP64CSR3","created_at":"2026-05-27T02:06:20Z"},{"alias_kind":"pith_short_8","alias_value":"MBNKRV2K","created_at":"2026-05-27T02:06:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:MBNKRV2KSP64CSR36HY3K6J7CX","target":"record","payload":{"canonical_record":{"source":{"id":"2605.27363","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-05-26T17:59:03Z","cross_cats_sorted":[],"title_canon_sha256":"44d85a2a646ec09555ca80c557a17abfd9a1dcf99008955ef962ffd8ca050e42","abstract_canon_sha256":"b226a93c8b524a6102e065ec1852a8b83f4e5ba42009f274a5d76dc729b7f899"},"schema_version":"1.0"},"canonical_sha256":"605aa8d74a93fdc14a3bf1f1b5793f15d4d7177632908853b88e21e5aa40a5da","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-27T02:06:20.214040Z","signature_b64":"kabh3p14+sGLObPTaJT0gDsCRVR0AnrfTqeh6EeYeDMknwXDYlGTvh5M2kWkQRGko8pCwCfnFHF0tNk+L1foCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"605aa8d74a93fdc14a3bf1f1b5793f15d4d7177632908853b88e21e5aa40a5da","last_reissued_at":"2026-05-27T02:06:20.213355Z","signature_status":"signed_v1","first_computed_at":"2026-05-27T02:06:20.213355Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.27363","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":"2026-05-27T02:06:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"duk49vKMsjZpozklDv7zUpTt2i3okCbzePORHhvW54eP63Xz+pvknAjXdoqlOBDUzYHzSXn6TTYOi5ooGIqADw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T03:45:44.010482Z"},"content_sha256":"8669141a4495b189b59be34bd1a4f1ddbf92a3573a01e33201ca44347ea66caf","schema_version":"1.0","event_id":"sha256:8669141a4495b189b59be34bd1a4f1ddbf92a3573a01e33201ca44347ea66caf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:MBNKRV2KSP64CSR36HY3K6J7CX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The first near-infrared high-resolution \\'echelle spectroscopy of the outflow in NGC 4151. A study of the clouds covering the Eye of Sauron","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Enrico Piconcelli, Fabio La Franca, Francesco Gabriele Saturni, Hermine Landt, Matteo Perri, Riccardo Middei, Valerio D'Elia","submitted_at":"2026-05-26T17:59:03Z","abstract_excerpt":"We present the first high-resolution near-infrared spectroscopy of the nucleus of the nearby, well-known Seyfert galaxy NGC 4151 (the \"Eye of Sauron\"). Past studies of this source have revealed that it exhibits a variable absorption feature associated with the He I $\\lambda$10,830 AA emission line, potentially indicative of obscuration events affecting the central engine. Here, we take advantage of the IRTF/iSHELL and TNG/GIANO-B spectrographs to observe this feature with unprecedented spectral resolution ($\\lambda/\\Delta\\lambda > 50,000$), being able to study in detail the structure of the ab"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.27363","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.27363/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-05-27T02:06:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HggXZL4CpJbZp9mFGOi8/zH+DSF8AA7O9OqAiegcoCB5qEq4M+4S45jq7yjBwFLdAuPRFwMca07eO5TJiOkHBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T03:45:44.011464Z"},"content_sha256":"ec4d487828e5fe48a23ebcf3282fea6c27f378cfde46c9a49a100b525b4ba06f","schema_version":"1.0","event_id":"sha256:ec4d487828e5fe48a23ebcf3282fea6c27f378cfde46c9a49a100b525b4ba06f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MBNKRV2KSP64CSR36HY3K6J7CX/bundle.json","state_url":"https://pith.science/pith/MBNKRV2KSP64CSR36HY3K6J7CX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MBNKRV2KSP64CSR36HY3K6J7CX/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":"2026-06-01T03:45:44Z","links":{"resolver":"https://pith.science/pith/MBNKRV2KSP64CSR36HY3K6J7CX","bundle":"https://pith.science/pith/MBNKRV2KSP64CSR36HY3K6J7CX/bundle.json","state":"https://pith.science/pith/MBNKRV2KSP64CSR36HY3K6J7CX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MBNKRV2KSP64CSR36HY3K6J7CX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:MBNKRV2KSP64CSR36HY3K6J7CX","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":"b226a93c8b524a6102e065ec1852a8b83f4e5ba42009f274a5d76dc729b7f899","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-05-26T17:59:03Z","title_canon_sha256":"44d85a2a646ec09555ca80c557a17abfd9a1dcf99008955ef962ffd8ca050e42"},"schema_version":"1.0","source":{"id":"2605.27363","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.27363","created_at":"2026-05-27T02:06:20Z"},{"alias_kind":"arxiv_version","alias_value":"2605.27363v1","created_at":"2026-05-27T02:06:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.27363","created_at":"2026-05-27T02:06:20Z"},{"alias_kind":"pith_short_12","alias_value":"MBNKRV2KSP64","created_at":"2026-05-27T02:06:20Z"},{"alias_kind":"pith_short_16","alias_value":"MBNKRV2KSP64CSR3","created_at":"2026-05-27T02:06:20Z"},{"alias_kind":"pith_short_8","alias_value":"MBNKRV2K","created_at":"2026-05-27T02:06:20Z"}],"graph_snapshots":[{"event_id":"sha256:ec4d487828e5fe48a23ebcf3282fea6c27f378cfde46c9a49a100b525b4ba06f","target":"graph","created_at":"2026-05-27T02:06:20Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2605.27363/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the first high-resolution near-infrared spectroscopy of the nucleus of the nearby, well-known Seyfert galaxy NGC 4151 (the \"Eye of Sauron\"). Past studies of this source have revealed that it exhibits a variable absorption feature associated with the He I $\\lambda$10,830 AA emission line, potentially indicative of obscuration events affecting the central engine. Here, we take advantage of the IRTF/iSHELL and TNG/GIANO-B spectrographs to observe this feature with unprecedented spectral resolution ($\\lambda/\\Delta\\lambda > 50,000$), being able to study in detail the structure of the ab","authors_text":"Enrico Piconcelli, Fabio La Franca, Francesco Gabriele Saturni, Hermine Landt, Matteo Perri, Riccardo Middei, Valerio D'Elia","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-05-26T17:59:03Z","title":"The first near-infrared high-resolution \\'echelle spectroscopy of the outflow in NGC 4151. A study of the clouds covering the Eye of Sauron"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.27363","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":"sha256:8669141a4495b189b59be34bd1a4f1ddbf92a3573a01e33201ca44347ea66caf","target":"record","created_at":"2026-05-27T02:06:20Z","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":"b226a93c8b524a6102e065ec1852a8b83f4e5ba42009f274a5d76dc729b7f899","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-05-26T17:59:03Z","title_canon_sha256":"44d85a2a646ec09555ca80c557a17abfd9a1dcf99008955ef962ffd8ca050e42"},"schema_version":"1.0","source":{"id":"2605.27363","kind":"arxiv","version":1}},"canonical_sha256":"605aa8d74a93fdc14a3bf1f1b5793f15d4d7177632908853b88e21e5aa40a5da","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"605aa8d74a93fdc14a3bf1f1b5793f15d4d7177632908853b88e21e5aa40a5da","first_computed_at":"2026-05-27T02:06:20.213355Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-27T02:06:20.213355Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kabh3p14+sGLObPTaJT0gDsCRVR0AnrfTqeh6EeYeDMknwXDYlGTvh5M2kWkQRGko8pCwCfnFHF0tNk+L1foCw==","signature_status":"signed_v1","signed_at":"2026-05-27T02:06:20.214040Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.27363","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8669141a4495b189b59be34bd1a4f1ddbf92a3573a01e33201ca44347ea66caf","sha256:ec4d487828e5fe48a23ebcf3282fea6c27f378cfde46c9a49a100b525b4ba06f"],"state_sha256":"fef843647485e3a67e4e633581641dfab0f2afca30ab1638182680f50b489660"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1jeFKi/pdL9Woo8J0qaG/VNF7cy1U14f8qLaR108QZ+ZQdRAzQ4Z2xJFFQazcQ0AZSEeYlBIV28G444c+WgBDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T03:45:44.014954Z","bundle_sha256":"00cb1cac0c24595bdeebcb9f0e1a0ffc6704c0213f8c19b3c825bc5ab64cc0cd"}}