{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:MYTUHW63F7X55T7UAILWCQP5KO","short_pith_number":"pith:MYTUHW63","schema_version":"1.0","canonical_sha256":"662743dbdb2fefdecff402176141fd539ed9f86e46b8ab6c7e77de9e6fc5022a","source":{"kind":"arxiv","id":"1711.00476","version":1},"attestation_state":"computed","paper":{"title":"The mysterious $6565\\,\\AA$ absorption feature of the Galactic halo","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Biman B. Nath, Shiv K. Sethi, Yuri Shchekinov","submitted_at":"2017-11-01T18:00:06Z","abstract_excerpt":"We consider various possible scenarios to explain the recent observation of a claimed broad H$\\alpha$ absorption in our Galactic halo with peak optical depth $\\tau \\simeq 0.01$ and equivalent width $W \\simeq 0.17 \\, \\rm \\AA$. We show that the absorbed feature cannot arise from the circumgalactic and ISM H$\\alpha$ absorption. As the observed absorption feature is quite broad $\\Delta\\lambda \\simeq 30 \\, \\rm \\AA$, we also consider CNO lines that lie close to H$\\alpha$ as possible alternatives to explain the feature. We show such lines could also not account for the observed feature. Instead, we s"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1711.00476","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-11-01T18:00:06Z","cross_cats_sorted":[],"title_canon_sha256":"cccdfc375d49f77aac2859059dde519b0425c468f97ef2dcb8bb9dc600d11835","abstract_canon_sha256":"717d00c21a473ee765eae5bf8b6c51e38ca2afbf1c38295e85ff4ea202dbaf48"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:28:51.850049Z","signature_b64":"Tn4l3BpwNb+PPOzW+E58t+0ZJ+JOkup8s/akrymKXYYCybTkb8maPOQWNt76+GVz3X56y1NCk2a8KT55tYpvAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"662743dbdb2fefdecff402176141fd539ed9f86e46b8ab6c7e77de9e6fc5022a","last_reissued_at":"2026-05-18T00:28:51.849334Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:28:51.849334Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The mysterious $6565\\,\\AA$ absorption feature of the Galactic halo","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Biman B. Nath, Shiv K. Sethi, Yuri Shchekinov","submitted_at":"2017-11-01T18:00:06Z","abstract_excerpt":"We consider various possible scenarios to explain the recent observation of a claimed broad H$\\alpha$ absorption in our Galactic halo with peak optical depth $\\tau \\simeq 0.01$ and equivalent width $W \\simeq 0.17 \\, \\rm \\AA$. We show that the absorbed feature cannot arise from the circumgalactic and ISM H$\\alpha$ absorption. As the observed absorption feature is quite broad $\\Delta\\lambda \\simeq 30 \\, \\rm \\AA$, we also consider CNO lines that lie close to H$\\alpha$ as possible alternatives to explain the feature. We show such lines could also not account for the observed feature. Instead, we s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.00476","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1711.00476","created_at":"2026-05-18T00:28:51.849455+00:00"},{"alias_kind":"arxiv_version","alias_value":"1711.00476v1","created_at":"2026-05-18T00:28:51.849455+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.00476","created_at":"2026-05-18T00:28:51.849455+00:00"},{"alias_kind":"pith_short_12","alias_value":"MYTUHW63F7X5","created_at":"2026-05-18T12:31:31.346846+00:00"},{"alias_kind":"pith_short_16","alias_value":"MYTUHW63F7X55T7U","created_at":"2026-05-18T12:31:31.346846+00:00"},{"alias_kind":"pith_short_8","alias_value":"MYTUHW63","created_at":"2026-05-18T12:31:31.346846+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/MYTUHW63F7X55T7UAILWCQP5KO","json":"https://pith.science/pith/MYTUHW63F7X55T7UAILWCQP5KO.json","graph_json":"https://pith.science/api/pith-number/MYTUHW63F7X55T7UAILWCQP5KO/graph.json","events_json":"https://pith.science/api/pith-number/MYTUHW63F7X55T7UAILWCQP5KO/events.json","paper":"https://pith.science/paper/MYTUHW63"},"agent_actions":{"view_html":"https://pith.science/pith/MYTUHW63F7X55T7UAILWCQP5KO","download_json":"https://pith.science/pith/MYTUHW63F7X55T7UAILWCQP5KO.json","view_paper":"https://pith.science/paper/MYTUHW63","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1711.00476&json=true","fetch_graph":"https://pith.science/api/pith-number/MYTUHW63F7X55T7UAILWCQP5KO/graph.json","fetch_events":"https://pith.science/api/pith-number/MYTUHW63F7X55T7UAILWCQP5KO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MYTUHW63F7X55T7UAILWCQP5KO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MYTUHW63F7X55T7UAILWCQP5KO/action/storage_attestation","attest_author":"https://pith.science/pith/MYTUHW63F7X55T7UAILWCQP5KO/action/author_attestation","sign_citation":"https://pith.science/pith/MYTUHW63F7X55T7UAILWCQP5KO/action/citation_signature","submit_replication":"https://pith.science/pith/MYTUHW63F7X55T7UAILWCQP5KO/action/replication_record"}},"created_at":"2026-05-18T00:28:51.849455+00:00","updated_at":"2026-05-18T00:28:51.849455+00:00"}