{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:RP4ATXQKGGPCH5DLM2CW4SW7MJ","short_pith_number":"pith:RP4ATXQK","schema_version":"1.0","canonical_sha256":"8bf809de0a319e23f46b66856e4adf62580eac18e2b445c8308b90a999fcc584","source":{"kind":"arxiv","id":"1504.07062","version":1},"attestation_state":"computed","paper":{"title":"Excited-state hydroxyl maser polarimetry: Who ate all the {\\pi}s?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"James A Green, James L Caswell, Naomi M McClure-Griffiths","submitted_at":"2015-04-27T12:45:03Z","abstract_excerpt":"We present polarimetric maser observations with the Australia Telescope Compact Array (ATCA) of excited-state hydroxyl (OH) masers. We observed 30 fields of OH masers in full Stokes polarization with the Compact Array Broadband Backend (CABB) at both the 6030 and 6035 MHz excited-state OH transitions, and the 6668-MHz methanol maser transition, detecting 70 sites of maser emission. Amongst the OH we found 112 Zeeman pairs, of which 18 exhibited candidate {\\pi} components. This is the largest single full polarimetric study of multiple sites of star formation for these frequencies, and the rate "},"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":"1504.07062","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-04-27T12:45:03Z","cross_cats_sorted":[],"title_canon_sha256":"848af2fe9a21cb0ff32cbcc0234b6992918c90ed9d5b362efa6f3677ae3bd94e","abstract_canon_sha256":"a65726f825235ff36850abcc16701a6e17faf02030f546fb3473e1108353f2d0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:35:48.310276Z","signature_b64":"o996yXcrjVj3xCsWdeGxwXcQOWb7Cmk4jkN1DlBR7YU3DsiA1dT3t3RLdS4rJPep8pPFMYOxsQOYuIjIr0GTBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8bf809de0a319e23f46b66856e4adf62580eac18e2b445c8308b90a999fcc584","last_reissued_at":"2026-05-18T01:35:48.309524Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:35:48.309524Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Excited-state hydroxyl maser polarimetry: Who ate all the {\\pi}s?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"James A Green, James L Caswell, Naomi M McClure-Griffiths","submitted_at":"2015-04-27T12:45:03Z","abstract_excerpt":"We present polarimetric maser observations with the Australia Telescope Compact Array (ATCA) of excited-state hydroxyl (OH) masers. We observed 30 fields of OH masers in full Stokes polarization with the Compact Array Broadband Backend (CABB) at both the 6030 and 6035 MHz excited-state OH transitions, and the 6668-MHz methanol maser transition, detecting 70 sites of maser emission. Amongst the OH we found 112 Zeeman pairs, of which 18 exhibited candidate {\\pi} components. This is the largest single full polarimetric study of multiple sites of star formation for these frequencies, and the rate "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.07062","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":"1504.07062","created_at":"2026-05-18T01:35:48.309641+00:00"},{"alias_kind":"arxiv_version","alias_value":"1504.07062v1","created_at":"2026-05-18T01:35:48.309641+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.07062","created_at":"2026-05-18T01:35:48.309641+00:00"},{"alias_kind":"pith_short_12","alias_value":"RP4ATXQKGGPC","created_at":"2026-05-18T12:29:39.896362+00:00"},{"alias_kind":"pith_short_16","alias_value":"RP4ATXQKGGPCH5DL","created_at":"2026-05-18T12:29:39.896362+00:00"},{"alias_kind":"pith_short_8","alias_value":"RP4ATXQK","created_at":"2026-05-18T12:29:39.896362+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2605.18275","citing_title":"Polarization Observations of a Sample of 6.7 GHz Methanol Masers","ref_index":66,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/RP4ATXQKGGPCH5DLM2CW4SW7MJ","json":"https://pith.science/pith/RP4ATXQKGGPCH5DLM2CW4SW7MJ.json","graph_json":"https://pith.science/api/pith-number/RP4ATXQKGGPCH5DLM2CW4SW7MJ/graph.json","events_json":"https://pith.science/api/pith-number/RP4ATXQKGGPCH5DLM2CW4SW7MJ/events.json","paper":"https://pith.science/paper/RP4ATXQK"},"agent_actions":{"view_html":"https://pith.science/pith/RP4ATXQKGGPCH5DLM2CW4SW7MJ","download_json":"https://pith.science/pith/RP4ATXQKGGPCH5DLM2CW4SW7MJ.json","view_paper":"https://pith.science/paper/RP4ATXQK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1504.07062&json=true","fetch_graph":"https://pith.science/api/pith-number/RP4ATXQKGGPCH5DLM2CW4SW7MJ/graph.json","fetch_events":"https://pith.science/api/pith-number/RP4ATXQKGGPCH5DLM2CW4SW7MJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/RP4ATXQKGGPCH5DLM2CW4SW7MJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/RP4ATXQKGGPCH5DLM2CW4SW7MJ/action/storage_attestation","attest_author":"https://pith.science/pith/RP4ATXQKGGPCH5DLM2CW4SW7MJ/action/author_attestation","sign_citation":"https://pith.science/pith/RP4ATXQKGGPCH5DLM2CW4SW7MJ/action/citation_signature","submit_replication":"https://pith.science/pith/RP4ATXQKGGPCH5DLM2CW4SW7MJ/action/replication_record"}},"created_at":"2026-05-18T01:35:48.309641+00:00","updated_at":"2026-05-18T01:35:48.309641+00:00"}