{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:NFBOS7B4PR5QU2VDYVCP6Y56IQ","short_pith_number":"pith:NFBOS7B4","canonical_record":{"source":{"id":"1707.06942","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-07-21T15:44:31Z","cross_cats_sorted":[],"title_canon_sha256":"4abb2e57c8bc4226060a186a6101606f5e524501e43e0586c23dd1635fc4379c","abstract_canon_sha256":"5ca1d577d5e30251ee9ca9c7f77013164b63b3b8104f55c73e5ce5c2eb180278"},"schema_version":"1.0"},"canonical_sha256":"6942e97c3c7c7b0a6aa3c544ff63be44120e82c2638cf6d67b1bee8e2f00c401","source":{"kind":"arxiv","id":"1707.06942","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.06942","created_at":"2026-05-18T00:31:35Z"},{"alias_kind":"arxiv_version","alias_value":"1707.06942v2","created_at":"2026-05-18T00:31:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.06942","created_at":"2026-05-18T00:31:35Z"},{"alias_kind":"pith_short_12","alias_value":"NFBOS7B4PR5Q","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"NFBOS7B4PR5QU2VD","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"NFBOS7B4","created_at":"2026-05-18T12:31:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:NFBOS7B4PR5QU2VDYVCP6Y56IQ","target":"record","payload":{"canonical_record":{"source":{"id":"1707.06942","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-07-21T15:44:31Z","cross_cats_sorted":[],"title_canon_sha256":"4abb2e57c8bc4226060a186a6101606f5e524501e43e0586c23dd1635fc4379c","abstract_canon_sha256":"5ca1d577d5e30251ee9ca9c7f77013164b63b3b8104f55c73e5ce5c2eb180278"},"schema_version":"1.0"},"canonical_sha256":"6942e97c3c7c7b0a6aa3c544ff63be44120e82c2638cf6d67b1bee8e2f00c401","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:31:35.764610Z","signature_b64":"uIXqOj9z5Jw7519c1q0Cd+bxpwCQbo+y5EQGaYTdTZRep2C3wu+m8kK2Gue+09WE3huucO/2ybPX5do49CAQBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6942e97c3c7c7b0a6aa3c544ff63be44120e82c2638cf6d67b1bee8e2f00c401","last_reissued_at":"2026-05-18T00:31:35.763945Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:31:35.763945Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1707.06942","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:31:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d1n3z5l+GtXuIXaqiicGLhcfAMIMhU/Noi9fCDqgrOGCbdN1tzhvnjCkN3EAMTC0lvbRxFBLoCQ0cCef8sEgBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T06:47:51.088799Z"},"content_sha256":"fa57d5ff935576bcf3409148551e550249eff571d6feafbf7b621f024ccbf8da","schema_version":"1.0","event_id":"sha256:fa57d5ff935576bcf3409148551e550249eff571d6feafbf7b621f024ccbf8da"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:NFBOS7B4PR5QU2VDYVCP6Y56IQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Probing the Outflowing Multiphase Gas ~1 kpc Below the Galactic Center","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Andrew J. Fox, Bart P. Wakker, Blair D. Savage, Derck Massa, Edward. B. Jenkins, Felix J. Lockman, Joss Bland-Hawthorn, Nicolas Lehner, Rongmon Bordoloi, Svea Hernandez, Tae-Sun Kim","submitted_at":"2017-07-21T15:44:31Z","abstract_excerpt":"Comparison of ISM absorption in the UV spectrum of LS 4825, a B1 Ib-II star d=21+/-5 kpc from the Sun toward l = 1.67 deg and b = -6.63 deg, with ISM absorption toward an aligned foreground star at d < 7.0+/-1.7 kpc, allows us to isolate and study gas associated with the Milky Way nuclear wind. Spectra from the Space Telescope Imaging Spectrograph (STIS) show low ion absorption out to d < 7 kpc ( e.g., O I, C II, Mg II, Si II, Fe II, S II) only between 0 and 40 km/s, while absorption at d > 7 kpc, ~1 kpc below the galactic plane, is complex and spans -290 to + 94 km/ s. The intermediate and hi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.06942","kind":"arxiv","version":2},"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":"2026-05-18T00:31:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XOvO3r9NvVZsoykKSSMI/TCozKV4R7l4Tp3DD5uMZv32JuLDrdLt7xV4nPQtSQufO0pppv1ul7HeCdUwMZ43BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T06:47:51.089494Z"},"content_sha256":"4c54bae027b87c9c5719b30e9b45e774bc8f7a13babf169625fedc700168c2f1","schema_version":"1.0","event_id":"sha256:4c54bae027b87c9c5719b30e9b45e774bc8f7a13babf169625fedc700168c2f1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NFBOS7B4PR5QU2VDYVCP6Y56IQ/bundle.json","state_url":"https://pith.science/pith/NFBOS7B4PR5QU2VDYVCP6Y56IQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NFBOS7B4PR5QU2VDYVCP6Y56IQ/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":"2026-05-27T06:47:51Z","links":{"resolver":"https://pith.science/pith/NFBOS7B4PR5QU2VDYVCP6Y56IQ","bundle":"https://pith.science/pith/NFBOS7B4PR5QU2VDYVCP6Y56IQ/bundle.json","state":"https://pith.science/pith/NFBOS7B4PR5QU2VDYVCP6Y56IQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NFBOS7B4PR5QU2VDYVCP6Y56IQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:NFBOS7B4PR5QU2VDYVCP6Y56IQ","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":"5ca1d577d5e30251ee9ca9c7f77013164b63b3b8104f55c73e5ce5c2eb180278","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-07-21T15:44:31Z","title_canon_sha256":"4abb2e57c8bc4226060a186a6101606f5e524501e43e0586c23dd1635fc4379c"},"schema_version":"1.0","source":{"id":"1707.06942","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.06942","created_at":"2026-05-18T00:31:35Z"},{"alias_kind":"arxiv_version","alias_value":"1707.06942v2","created_at":"2026-05-18T00:31:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.06942","created_at":"2026-05-18T00:31:35Z"},{"alias_kind":"pith_short_12","alias_value":"NFBOS7B4PR5Q","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"NFBOS7B4PR5QU2VD","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"NFBOS7B4","created_at":"2026-05-18T12:31:31Z"}],"graph_snapshots":[{"event_id":"sha256:4c54bae027b87c9c5719b30e9b45e774bc8f7a13babf169625fedc700168c2f1","target":"graph","created_at":"2026-05-18T00:31:35Z","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":"Comparison of ISM absorption in the UV spectrum of LS 4825, a B1 Ib-II star d=21+/-5 kpc from the Sun toward l = 1.67 deg and b = -6.63 deg, with ISM absorption toward an aligned foreground star at d < 7.0+/-1.7 kpc, allows us to isolate and study gas associated with the Milky Way nuclear wind. Spectra from the Space Telescope Imaging Spectrograph (STIS) show low ion absorption out to d < 7 kpc ( e.g., O I, C II, Mg II, Si II, Fe II, S II) only between 0 and 40 km/s, while absorption at d > 7 kpc, ~1 kpc below the galactic plane, is complex and spans -290 to + 94 km/ s. The intermediate and hi","authors_text":"Andrew J. Fox, Bart P. Wakker, Blair D. Savage, Derck Massa, Edward. B. Jenkins, Felix J. Lockman, Joss Bland-Hawthorn, Nicolas Lehner, Rongmon Bordoloi, Svea Hernandez, Tae-Sun Kim","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-07-21T15:44:31Z","title":"Probing the Outflowing Multiphase Gas ~1 kpc Below the Galactic Center"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.06942","kind":"arxiv","version":2},"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:fa57d5ff935576bcf3409148551e550249eff571d6feafbf7b621f024ccbf8da","target":"record","created_at":"2026-05-18T00:31:35Z","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":"5ca1d577d5e30251ee9ca9c7f77013164b63b3b8104f55c73e5ce5c2eb180278","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-07-21T15:44:31Z","title_canon_sha256":"4abb2e57c8bc4226060a186a6101606f5e524501e43e0586c23dd1635fc4379c"},"schema_version":"1.0","source":{"id":"1707.06942","kind":"arxiv","version":2}},"canonical_sha256":"6942e97c3c7c7b0a6aa3c544ff63be44120e82c2638cf6d67b1bee8e2f00c401","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6942e97c3c7c7b0a6aa3c544ff63be44120e82c2638cf6d67b1bee8e2f00c401","first_computed_at":"2026-05-18T00:31:35.763945Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:31:35.763945Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uIXqOj9z5Jw7519c1q0Cd+bxpwCQbo+y5EQGaYTdTZRep2C3wu+m8kK2Gue+09WE3huucO/2ybPX5do49CAQBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:31:35.764610Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.06942","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fa57d5ff935576bcf3409148551e550249eff571d6feafbf7b621f024ccbf8da","sha256:4c54bae027b87c9c5719b30e9b45e774bc8f7a13babf169625fedc700168c2f1"],"state_sha256":"b837ff7c3069b48a3d19ed22e763490d7c8920d30275d75d278931df2fbe42aa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pVnh+hKZjM4U5ezRJrhdq/kWC/AfIBcAq3GJ+r95Ljjfar+gQglO7OTK5arWi+wJ5BblzTPgp2Wlv9eMuNG8Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T06:47:51.093106Z","bundle_sha256":"e8a27c22f4dbac4eba890d199cff60fa61692494ad570865b0f0cc4a6947c674"}}