{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:Z25NVIGC25ERO2U47XITIV7JXQ","short_pith_number":"pith:Z25NVIGC","canonical_record":{"source":{"id":"1706.04325","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-06-14T05:41:33Z","cross_cats_sorted":[],"title_canon_sha256":"06f5e6e02fddda2321bb449927f9ba84d605f6aa072ed2e0b3ac4998b9d81f37","abstract_canon_sha256":"44a7b4d6c3089880b12351e3b21073394e33f41a81d196b44029428f27dbdcd3"},"schema_version":"1.0"},"canonical_sha256":"cebadaa0c2d749176a9cfdd13457e9bc3d0098b54051a512f18ea9103aba2566","source":{"kind":"arxiv","id":"1706.04325","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.04325","created_at":"2026-05-18T00:24:31Z"},{"alias_kind":"arxiv_version","alias_value":"1706.04325v1","created_at":"2026-05-18T00:24:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.04325","created_at":"2026-05-18T00:24:31Z"},{"alias_kind":"pith_short_12","alias_value":"Z25NVIGC25ER","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_16","alias_value":"Z25NVIGC25ERO2U4","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_8","alias_value":"Z25NVIGC","created_at":"2026-05-18T12:31:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:Z25NVIGC25ERO2U47XITIV7JXQ","target":"record","payload":{"canonical_record":{"source":{"id":"1706.04325","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-06-14T05:41:33Z","cross_cats_sorted":[],"title_canon_sha256":"06f5e6e02fddda2321bb449927f9ba84d605f6aa072ed2e0b3ac4998b9d81f37","abstract_canon_sha256":"44a7b4d6c3089880b12351e3b21073394e33f41a81d196b44029428f27dbdcd3"},"schema_version":"1.0"},"canonical_sha256":"cebadaa0c2d749176a9cfdd13457e9bc3d0098b54051a512f18ea9103aba2566","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:24:31.154129Z","signature_b64":"m69ijQc0auQt+WGSV2nH7FWjMMiQqzOYiBWzSnGzIauQqmFnRX3x4TZT966JjCxk2Jl96+c18xF+oVg9iO7pBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cebadaa0c2d749176a9cfdd13457e9bc3d0098b54051a512f18ea9103aba2566","last_reissued_at":"2026-05-18T00:24:31.153675Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:24:31.153675Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1706.04325","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":"2026-05-18T00:24:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lv1x4NzmzVQHySewDE/3qbTKxGtzBm4zws+hBniOK46m9oNfkgpATZumPppjDNdfVYiCL4iK3rmlqW7qgM/cAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T19:00:51.389376Z"},"content_sha256":"e3565e47a3b437cff29148c0848c8ddb4ff5ce357136db7d560eaf5a528fde14","schema_version":"1.0","event_id":"sha256:e3565e47a3b437cff29148c0848c8ddb4ff5ce357136db7d560eaf5a528fde14"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:Z25NVIGC25ERO2U47XITIV7JXQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detection of Two Intervening Ne VIII Absorbers Probing Warm Gas at z~0.6","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Anand Narayanan, Bart P. Wakker, Blair D. Savage, Sachin Pachat, Sowgat Muzahid, Vikram Khaire","submitted_at":"2017-06-14T05:41:33Z","abstract_excerpt":"We report on the detection of two Ne VIII absorbers, at z = 0.61907 and z = 0.57052 in the HST/COS spectrum of background quasars SDSS J 080908.13+461925.6 and SBS 1122+594 respectively. The Ne VIII 770 line is at $\\sim 3\\sigma$ significance. In both instances, the NeVIII is found to be tracing gas with $T \\gtrsim 10^5$ K, predominantly collisionally ionized, with moderate densities of $n_{H} \\lesssim 10^{-4}$ $cm^{-3}$, sub-solar metallicities and total hydrogen column densities of $N(H) \\gtrsim 10^{19}$ $cm^{2}$. In the z = 0.61907 absorber, the low, intermediate ions and O VI are consistent"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.04325","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":"2026-05-18T00:24:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/4lg8b6tjNzG1pHCPryP9tkGwkCn0aI4yHAFmujsKXyiy+TdW7fjy1of1RiEFATAcKoN62L/kYRcCyS29kfpCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T19:00:51.389812Z"},"content_sha256":"fc93cf54009e4ac55774eaefe05d4c088314467713086329620c64f012c9a78f","schema_version":"1.0","event_id":"sha256:fc93cf54009e4ac55774eaefe05d4c088314467713086329620c64f012c9a78f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z25NVIGC25ERO2U47XITIV7JXQ/bundle.json","state_url":"https://pith.science/pith/Z25NVIGC25ERO2U47XITIV7JXQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z25NVIGC25ERO2U47XITIV7JXQ/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":"2026-05-27T19:00:51Z","links":{"resolver":"https://pith.science/pith/Z25NVIGC25ERO2U47XITIV7JXQ","bundle":"https://pith.science/pith/Z25NVIGC25ERO2U47XITIV7JXQ/bundle.json","state":"https://pith.science/pith/Z25NVIGC25ERO2U47XITIV7JXQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z25NVIGC25ERO2U47XITIV7JXQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:Z25NVIGC25ERO2U47XITIV7JXQ","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":"44a7b4d6c3089880b12351e3b21073394e33f41a81d196b44029428f27dbdcd3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-06-14T05:41:33Z","title_canon_sha256":"06f5e6e02fddda2321bb449927f9ba84d605f6aa072ed2e0b3ac4998b9d81f37"},"schema_version":"1.0","source":{"id":"1706.04325","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.04325","created_at":"2026-05-18T00:24:31Z"},{"alias_kind":"arxiv_version","alias_value":"1706.04325v1","created_at":"2026-05-18T00:24:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.04325","created_at":"2026-05-18T00:24:31Z"},{"alias_kind":"pith_short_12","alias_value":"Z25NVIGC25ER","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_16","alias_value":"Z25NVIGC25ERO2U4","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_8","alias_value":"Z25NVIGC","created_at":"2026-05-18T12:31:59Z"}],"graph_snapshots":[{"event_id":"sha256:fc93cf54009e4ac55774eaefe05d4c088314467713086329620c64f012c9a78f","target":"graph","created_at":"2026-05-18T00:24:31Z","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 report on the detection of two Ne VIII absorbers, at z = 0.61907 and z = 0.57052 in the HST/COS spectrum of background quasars SDSS J 080908.13+461925.6 and SBS 1122+594 respectively. The Ne VIII 770 line is at $\\sim 3\\sigma$ significance. In both instances, the NeVIII is found to be tracing gas with $T \\gtrsim 10^5$ K, predominantly collisionally ionized, with moderate densities of $n_{H} \\lesssim 10^{-4}$ $cm^{-3}$, sub-solar metallicities and total hydrogen column densities of $N(H) \\gtrsim 10^{19}$ $cm^{2}$. In the z = 0.61907 absorber, the low, intermediate ions and O VI are consistent","authors_text":"Anand Narayanan, Bart P. Wakker, Blair D. Savage, Sachin Pachat, Sowgat Muzahid, Vikram Khaire","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-06-14T05:41:33Z","title":"Detection of Two Intervening Ne VIII Absorbers Probing Warm Gas at z~0.6"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.04325","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:e3565e47a3b437cff29148c0848c8ddb4ff5ce357136db7d560eaf5a528fde14","target":"record","created_at":"2026-05-18T00:24:31Z","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":"44a7b4d6c3089880b12351e3b21073394e33f41a81d196b44029428f27dbdcd3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-06-14T05:41:33Z","title_canon_sha256":"06f5e6e02fddda2321bb449927f9ba84d605f6aa072ed2e0b3ac4998b9d81f37"},"schema_version":"1.0","source":{"id":"1706.04325","kind":"arxiv","version":1}},"canonical_sha256":"cebadaa0c2d749176a9cfdd13457e9bc3d0098b54051a512f18ea9103aba2566","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cebadaa0c2d749176a9cfdd13457e9bc3d0098b54051a512f18ea9103aba2566","first_computed_at":"2026-05-18T00:24:31.153675Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:24:31.153675Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"m69ijQc0auQt+WGSV2nH7FWjMMiQqzOYiBWzSnGzIauQqmFnRX3x4TZT966JjCxk2Jl96+c18xF+oVg9iO7pBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:24:31.154129Z","signed_message":"canonical_sha256_bytes"},"source_id":"1706.04325","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e3565e47a3b437cff29148c0848c8ddb4ff5ce357136db7d560eaf5a528fde14","sha256:fc93cf54009e4ac55774eaefe05d4c088314467713086329620c64f012c9a78f"],"state_sha256":"9bee9d37d06a15dd343c0b1921a8a9a4899c1a7d7bf99878932ec75c0bb013d4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dLuVjExI71THKTkr1fixGujJb4ZAVrbk5qaDjeSsbVbghSY4aGB+GX6Ar+8N8nmuS1ob0qvnIerag8d5XiNmCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T19:00:51.392781Z","bundle_sha256":"f1191614bfe64815bbc6aa25ec6c255011bce6a7c26529467dadcafe33e73bb0"}}