{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:VR7IJPCXYW3SH7XPKHO5JJCVPO","short_pith_number":"pith:VR7IJPCX","canonical_record":{"source":{"id":"1810.03858","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-10-09T08:43:53Z","cross_cats_sorted":[],"title_canon_sha256":"8160d0d230e6ab3ec320de8f8adfbfc1c335855985a2d43f7cbcb998aefd3dba","abstract_canon_sha256":"31b71762aee4036c0d42b17e7ba69855b0b41470697e663465e9653a2d3878fe"},"schema_version":"1.0"},"canonical_sha256":"ac7e84bc57c5b723feef51ddd4a4557b8d6bb0bcdefb0c2624b9fab501cd28eb","source":{"kind":"arxiv","id":"1810.03858","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.03858","created_at":"2026-05-18T00:02:30Z"},{"alias_kind":"arxiv_version","alias_value":"1810.03858v1","created_at":"2026-05-18T00:02:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.03858","created_at":"2026-05-18T00:02:30Z"},{"alias_kind":"pith_short_12","alias_value":"VR7IJPCXYW3S","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"VR7IJPCXYW3SH7XP","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"VR7IJPCX","created_at":"2026-05-18T12:32:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:VR7IJPCXYW3SH7XPKHO5JJCVPO","target":"record","payload":{"canonical_record":{"source":{"id":"1810.03858","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-10-09T08:43:53Z","cross_cats_sorted":[],"title_canon_sha256":"8160d0d230e6ab3ec320de8f8adfbfc1c335855985a2d43f7cbcb998aefd3dba","abstract_canon_sha256":"31b71762aee4036c0d42b17e7ba69855b0b41470697e663465e9653a2d3878fe"},"schema_version":"1.0"},"canonical_sha256":"ac7e84bc57c5b723feef51ddd4a4557b8d6bb0bcdefb0c2624b9fab501cd28eb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:02:30.363655Z","signature_b64":"q5p3dj//zaf8ZlxZkchZTAadtH487ZLob/UrKXTa21PFW2Q9R2V2LTf2rlqseE0qBu0vM9H5JzE1qifqqlcoAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ac7e84bc57c5b723feef51ddd4a4557b8d6bb0bcdefb0c2624b9fab501cd28eb","last_reissued_at":"2026-05-18T00:02:30.363005Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:02:30.363005Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.03858","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":"2026-05-18T00:02:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xPeBAP8jUvTmSInSfNcWyABvGbrgcbbGVN72CIPw8pE7hCAqsO6y5yl9p5c1swKfAQs26Idgx2CHWAMd5hQwBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T03:20:09.881492Z"},"content_sha256":"7db5507199b3fa42b483c454953266f47e5c86f4f7fdbd29148b856684535220","schema_version":"1.0","event_id":"sha256:7db5507199b3fa42b483c454953266f47e5c86f4f7fdbd29148b856684535220"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:VR7IJPCXYW3SH7XPKHO5JJCVPO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Widespread Shocks in the Nucleus of NGC 404 Revealed by Near-infrared Integral Field Spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Boehle, J. E. Larkin, L. Armus, S. A. Wright","submitted_at":"2018-10-09T08:43:53Z","abstract_excerpt":"We present high spatial resolution, integral field spectrograph (IFS) observations of the nearby LINER (low ionization nuclear emission line region) galaxy NGC 404 at 1.25 $\\mu$m (J band) and 2.2 $\\mu$m (K band) near-infrared wavelengths. Although NGC 404 is thought to host an intermediate mass black hole at its center, it has been unclear whether accretion onto the black hole or another mechanism such as shock excitation drives its LINER emission at optical/near-infrared wavelengths. We use the OSIRIS IFS at Keck Observatory behind laser guide star adaptive optics to map the strength and kine"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.03858","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":"2026-05-18T00:02:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PfxPGV0GVGN1q+2r/uF8IsOKxT+V0ZBKCnf57e1iPKV6+nlzcnibsnOkTBLyl5rmPtS/A0RIWxQhWzof2SC9DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T03:20:09.881865Z"},"content_sha256":"6ea9e46c662e76ba01ff2563be12062c548b6953536a13f49b44b525fb0359d4","schema_version":"1.0","event_id":"sha256:6ea9e46c662e76ba01ff2563be12062c548b6953536a13f49b44b525fb0359d4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VR7IJPCXYW3SH7XPKHO5JJCVPO/bundle.json","state_url":"https://pith.science/pith/VR7IJPCXYW3SH7XPKHO5JJCVPO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VR7IJPCXYW3SH7XPKHO5JJCVPO/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":"2026-05-27T03:20:09Z","links":{"resolver":"https://pith.science/pith/VR7IJPCXYW3SH7XPKHO5JJCVPO","bundle":"https://pith.science/pith/VR7IJPCXYW3SH7XPKHO5JJCVPO/bundle.json","state":"https://pith.science/pith/VR7IJPCXYW3SH7XPKHO5JJCVPO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VR7IJPCXYW3SH7XPKHO5JJCVPO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:VR7IJPCXYW3SH7XPKHO5JJCVPO","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":"31b71762aee4036c0d42b17e7ba69855b0b41470697e663465e9653a2d3878fe","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-10-09T08:43:53Z","title_canon_sha256":"8160d0d230e6ab3ec320de8f8adfbfc1c335855985a2d43f7cbcb998aefd3dba"},"schema_version":"1.0","source":{"id":"1810.03858","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.03858","created_at":"2026-05-18T00:02:30Z"},{"alias_kind":"arxiv_version","alias_value":"1810.03858v1","created_at":"2026-05-18T00:02:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.03858","created_at":"2026-05-18T00:02:30Z"},{"alias_kind":"pith_short_12","alias_value":"VR7IJPCXYW3S","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"VR7IJPCXYW3SH7XP","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"VR7IJPCX","created_at":"2026-05-18T12:32:59Z"}],"graph_snapshots":[{"event_id":"sha256:6ea9e46c662e76ba01ff2563be12062c548b6953536a13f49b44b525fb0359d4","target":"graph","created_at":"2026-05-18T00:02:30Z","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 high spatial resolution, integral field spectrograph (IFS) observations of the nearby LINER (low ionization nuclear emission line region) galaxy NGC 404 at 1.25 $\\mu$m (J band) and 2.2 $\\mu$m (K band) near-infrared wavelengths. Although NGC 404 is thought to host an intermediate mass black hole at its center, it has been unclear whether accretion onto the black hole or another mechanism such as shock excitation drives its LINER emission at optical/near-infrared wavelengths. We use the OSIRIS IFS at Keck Observatory behind laser guide star adaptive optics to map the strength and kine","authors_text":"A. Boehle, J. E. Larkin, L. Armus, S. A. Wright","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-10-09T08:43:53Z","title":"Widespread Shocks in the Nucleus of NGC 404 Revealed by Near-infrared Integral Field Spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.03858","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":"sha256:7db5507199b3fa42b483c454953266f47e5c86f4f7fdbd29148b856684535220","target":"record","created_at":"2026-05-18T00:02:30Z","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":"31b71762aee4036c0d42b17e7ba69855b0b41470697e663465e9653a2d3878fe","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-10-09T08:43:53Z","title_canon_sha256":"8160d0d230e6ab3ec320de8f8adfbfc1c335855985a2d43f7cbcb998aefd3dba"},"schema_version":"1.0","source":{"id":"1810.03858","kind":"arxiv","version":1}},"canonical_sha256":"ac7e84bc57c5b723feef51ddd4a4557b8d6bb0bcdefb0c2624b9fab501cd28eb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ac7e84bc57c5b723feef51ddd4a4557b8d6bb0bcdefb0c2624b9fab501cd28eb","first_computed_at":"2026-05-18T00:02:30.363005Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:02:30.363005Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"q5p3dj//zaf8ZlxZkchZTAadtH487ZLob/UrKXTa21PFW2Q9R2V2LTf2rlqseE0qBu0vM9H5JzE1qifqqlcoAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:02:30.363655Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.03858","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7db5507199b3fa42b483c454953266f47e5c86f4f7fdbd29148b856684535220","sha256:6ea9e46c662e76ba01ff2563be12062c548b6953536a13f49b44b525fb0359d4"],"state_sha256":"8bcb7ce77fa7a081117e8567af2185839eb287a41cbc56ce54cd62e3866f8c4c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+EaeeCC8Bv4o5f4M7jCJ21ycBcrHI1BvnhTWXe3GzSwD2u3938yLcdWmTkNd2b5qD5EUUbBcOd+9MaHRB6TtCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T03:20:09.884398Z","bundle_sha256":"14443d691f8804c18e06371f8497970788b37b61dee1d16214d5d5fab554154f"}}