{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:YAJJMGCEUYT75OCKI6LLPJBRCI","short_pith_number":"pith:YAJJMGCE","canonical_record":{"source":{"id":"1610.09047","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-28T01:12:48Z","cross_cats_sorted":[],"title_canon_sha256":"bc01de92cc0ab4bfdb9a698d4345ff7a55f2a85a0731aa3f0caa37d977398ea6","abstract_canon_sha256":"26815ca0c45dfc4d5d20203a882dcb1772c6b4fdb4805d92a261e4384e758cad"},"schema_version":"1.0"},"canonical_sha256":"c012961844a627feb84a4796b7a4311213f50e41e923a48dca9aae9ad5dc925a","source":{"kind":"arxiv","id":"1610.09047","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.09047","created_at":"2026-05-18T00:52:38Z"},{"alias_kind":"arxiv_version","alias_value":"1610.09047v1","created_at":"2026-05-18T00:52:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.09047","created_at":"2026-05-18T00:52:38Z"},{"alias_kind":"pith_short_12","alias_value":"YAJJMGCEUYT7","created_at":"2026-05-18T12:30:53Z"},{"alias_kind":"pith_short_16","alias_value":"YAJJMGCEUYT75OCK","created_at":"2026-05-18T12:30:53Z"},{"alias_kind":"pith_short_8","alias_value":"YAJJMGCE","created_at":"2026-05-18T12:30:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:YAJJMGCEUYT75OCKI6LLPJBRCI","target":"record","payload":{"canonical_record":{"source":{"id":"1610.09047","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-28T01:12:48Z","cross_cats_sorted":[],"title_canon_sha256":"bc01de92cc0ab4bfdb9a698d4345ff7a55f2a85a0731aa3f0caa37d977398ea6","abstract_canon_sha256":"26815ca0c45dfc4d5d20203a882dcb1772c6b4fdb4805d92a261e4384e758cad"},"schema_version":"1.0"},"canonical_sha256":"c012961844a627feb84a4796b7a4311213f50e41e923a48dca9aae9ad5dc925a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:52:38.161772Z","signature_b64":"WB/0lX/S+G+zM3SZfVccf1BIZilPicFajtjJLnvp9EtrswUWJOifrLWYYtikpJE8DeTsV0cMX25PnxT238aRAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c012961844a627feb84a4796b7a4311213f50e41e923a48dca9aae9ad5dc925a","last_reissued_at":"2026-05-18T00:52:38.161311Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:52:38.161311Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.09047","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":"2026-05-18T00:52:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A+1iEEDzhh2h6kglv7LUcmq14c3h29txb8LD2Ae21OVocJMtJFfB24VjphhjoUbIDgNeLghCAukLjqwv+yNgCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T06:54:00.006423Z"},"content_sha256":"766fcbc774bab9905a7426d056643b3287820c3118ceb547f5ad48b06aaf7a81","schema_version":"1.0","event_id":"sha256:766fcbc774bab9905a7426d056643b3287820c3118ceb547f5ad48b06aaf7a81"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:YAJJMGCEUYT75OCKI6LLPJBRCI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Zeeman Effect in the 44 GHz Class I Methanol Maser Line toward DR21(OH)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. P. Sarma, E. Momjian","submitted_at":"2016-10-28T01:12:48Z","abstract_excerpt":"We report the detection of the Zeeman effect in the 44 GHz Class I methanol maser line toward the star forming region DR21(OH). In a 219 Jy/beam maser centered at an LSR velocity of 0.83 km s$^{-1}$, we find a 20-$\\sigma$ detection of $zB_{\\text{los}} = 53.5 \\pm 2.7$ Hz. If 44 GHz methanol masers are excited at $n \\sim 10^{7-8}$ cm$^{-3}$, then the $B~vs.~n^{1/2}$ relation would imply from comparison with Zeeman effect detections in the CN($1-0$) line toward DR21(OH) that magnetic fields traced by 44 GHz methanol masers in DR21(OH) should be $\\sim$10 mG. Together with our detected $zB_{\\text{l"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.09047","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":"2026-05-18T00:52:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TWqwwDcmZ0Av2XeNXbU8WchfGe+0mO6iV8HPZ1f5bYPftSDrCnGzAZfm/iZOXcaj2bLml8MFzemjTiWN7Ik9Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T06:54:00.006768Z"},"content_sha256":"b28e8c62c4b1def8b34680d22de15c34ce088e7d0cb90d702b8ea084aebeb491","schema_version":"1.0","event_id":"sha256:b28e8c62c4b1def8b34680d22de15c34ce088e7d0cb90d702b8ea084aebeb491"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YAJJMGCEUYT75OCKI6LLPJBRCI/bundle.json","state_url":"https://pith.science/pith/YAJJMGCEUYT75OCKI6LLPJBRCI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YAJJMGCEUYT75OCKI6LLPJBRCI/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":"2026-06-27T06:54:00Z","links":{"resolver":"https://pith.science/pith/YAJJMGCEUYT75OCKI6LLPJBRCI","bundle":"https://pith.science/pith/YAJJMGCEUYT75OCKI6LLPJBRCI/bundle.json","state":"https://pith.science/pith/YAJJMGCEUYT75OCKI6LLPJBRCI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YAJJMGCEUYT75OCKI6LLPJBRCI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:YAJJMGCEUYT75OCKI6LLPJBRCI","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":"26815ca0c45dfc4d5d20203a882dcb1772c6b4fdb4805d92a261e4384e758cad","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-28T01:12:48Z","title_canon_sha256":"bc01de92cc0ab4bfdb9a698d4345ff7a55f2a85a0731aa3f0caa37d977398ea6"},"schema_version":"1.0","source":{"id":"1610.09047","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.09047","created_at":"2026-05-18T00:52:38Z"},{"alias_kind":"arxiv_version","alias_value":"1610.09047v1","created_at":"2026-05-18T00:52:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.09047","created_at":"2026-05-18T00:52:38Z"},{"alias_kind":"pith_short_12","alias_value":"YAJJMGCEUYT7","created_at":"2026-05-18T12:30:53Z"},{"alias_kind":"pith_short_16","alias_value":"YAJJMGCEUYT75OCK","created_at":"2026-05-18T12:30:53Z"},{"alias_kind":"pith_short_8","alias_value":"YAJJMGCE","created_at":"2026-05-18T12:30:53Z"}],"graph_snapshots":[{"event_id":"sha256:b28e8c62c4b1def8b34680d22de15c34ce088e7d0cb90d702b8ea084aebeb491","target":"graph","created_at":"2026-05-18T00:52:38Z","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 the detection of the Zeeman effect in the 44 GHz Class I methanol maser line toward the star forming region DR21(OH). In a 219 Jy/beam maser centered at an LSR velocity of 0.83 km s$^{-1}$, we find a 20-$\\sigma$ detection of $zB_{\\text{los}} = 53.5 \\pm 2.7$ Hz. If 44 GHz methanol masers are excited at $n \\sim 10^{7-8}$ cm$^{-3}$, then the $B~vs.~n^{1/2}$ relation would imply from comparison with Zeeman effect detections in the CN($1-0$) line toward DR21(OH) that magnetic fields traced by 44 GHz methanol masers in DR21(OH) should be $\\sim$10 mG. Together with our detected $zB_{\\text{l","authors_text":"A. P. Sarma, E. Momjian","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-28T01:12:48Z","title":"The Zeeman Effect in the 44 GHz Class I Methanol Maser Line toward DR21(OH)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.09047","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":"sha256:766fcbc774bab9905a7426d056643b3287820c3118ceb547f5ad48b06aaf7a81","target":"record","created_at":"2026-05-18T00:52:38Z","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":"26815ca0c45dfc4d5d20203a882dcb1772c6b4fdb4805d92a261e4384e758cad","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-28T01:12:48Z","title_canon_sha256":"bc01de92cc0ab4bfdb9a698d4345ff7a55f2a85a0731aa3f0caa37d977398ea6"},"schema_version":"1.0","source":{"id":"1610.09047","kind":"arxiv","version":1}},"canonical_sha256":"c012961844a627feb84a4796b7a4311213f50e41e923a48dca9aae9ad5dc925a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c012961844a627feb84a4796b7a4311213f50e41e923a48dca9aae9ad5dc925a","first_computed_at":"2026-05-18T00:52:38.161311Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:52:38.161311Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WB/0lX/S+G+zM3SZfVccf1BIZilPicFajtjJLnvp9EtrswUWJOifrLWYYtikpJE8DeTsV0cMX25PnxT238aRAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:52:38.161772Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.09047","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:766fcbc774bab9905a7426d056643b3287820c3118ceb547f5ad48b06aaf7a81","sha256:b28e8c62c4b1def8b34680d22de15c34ce088e7d0cb90d702b8ea084aebeb491"],"state_sha256":"510574f0f5ee051babcfd58be0e1d25fba3f47e2740828a6636bb6bcd10ae2d2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"diulmf3dESyKKTzhPTgogzhzPTVoNOSvqE0+2kY5m9yGtIaPcCEM9SQxcLepDvofpw6Kge7++zHB2phEhE9IDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-27T06:54:00.008693Z","bundle_sha256":"c344b4108c0384a67366cf638a632f0ad5921e63a2acca664a15e45751791970"}}