{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:6F7Z5NKPXNDNOW62C67A7NK5S7","short_pith_number":"pith:6F7Z5NKP","canonical_record":{"source":{"id":"2607.15595","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-07-17T03:43:33Z","cross_cats_sorted":[],"title_canon_sha256":"88c9d180eaef853a7b89ef68268ed7a4bbd342279b782c47c6b05279d125c644","abstract_canon_sha256":"617346cecb1f682b0833e0f3917a138fe510bb03327de8f054d531cf99a94760"},"schema_version":"1.0"},"canonical_sha256":"f17f9eb54fbb46d75bda17be0fb55d97cffbd0c298b744f81d328545bfad31de","source":{"kind":"arxiv","id":"2607.15595","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.15595","created_at":"2026-07-20T00:18:42Z"},{"alias_kind":"arxiv_version","alias_value":"2607.15595v1","created_at":"2026-07-20T00:18:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.15595","created_at":"2026-07-20T00:18:42Z"},{"alias_kind":"pith_short_12","alias_value":"6F7Z5NKPXNDN","created_at":"2026-07-20T00:18:42Z"},{"alias_kind":"pith_short_16","alias_value":"6F7Z5NKPXNDNOW62","created_at":"2026-07-20T00:18:42Z"},{"alias_kind":"pith_short_8","alias_value":"6F7Z5NKP","created_at":"2026-07-20T00:18:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:6F7Z5NKPXNDNOW62C67A7NK5S7","target":"record","payload":{"canonical_record":{"source":{"id":"2607.15595","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-07-17T03:43:33Z","cross_cats_sorted":[],"title_canon_sha256":"88c9d180eaef853a7b89ef68268ed7a4bbd342279b782c47c6b05279d125c644","abstract_canon_sha256":"617346cecb1f682b0833e0f3917a138fe510bb03327de8f054d531cf99a94760"},"schema_version":"1.0"},"canonical_sha256":"f17f9eb54fbb46d75bda17be0fb55d97cffbd0c298b744f81d328545bfad31de","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-20T00:18:42.672072Z","signature_b64":"USmpSoYOobdaTHMlCbkqB0ogGvtN85bWTqJaW7UOUaKIoMgLhGN+LpQSluL0GXXUpTmXReLCVdLSZqwC5wXxCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f17f9eb54fbb46d75bda17be0fb55d97cffbd0c298b744f81d328545bfad31de","last_reissued_at":"2026-07-20T00:18:42.671269Z","signature_status":"signed_v1","first_computed_at":"2026-07-20T00:18:42.671269Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.15595","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":"2026-07-20T00:18:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lVAt2iopQR39WPemneVVydzc164lexg4g7ej+A9L2bW3nooQbrEGXprCXPF/WuuVJsHMlwAqkCaXfxZj48NdAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T21:37:27.896724Z"},"content_sha256":"99f1947e0c374b99c91550078fc9b5419d1659a2aa29db71c283d1094cc37195","schema_version":"1.0","event_id":"sha256:99f1947e0c374b99c91550078fc9b5419d1659a2aa29db71c283d1094cc37195"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:6F7Z5NKPXNDNOW62C67A7NK5S7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The FAST HI 21-cm Absorption Blind Survey. III. OH Absorption Search in the 21-cm Absorber Sample and Continued HI Absorption Search","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Di Li, Elaine M. Sadler, Fengquan Wu, James R. Allison, Jeremy Darling, Jie Wang, Ming Zhu, Wenkai Hu, Wenxiu Yang, Xuelei Chen, Yichao Li, Yidong Xu, Yougang Wang, Zheng Zheng","submitted_at":"2026-07-17T03:43:33Z","abstract_excerpt":"We present the first blind search for OH 18-cm absorption with the Five-hundred-meter Aperture Spherical Telescope (FAST), conducted alongside the HI 21-cm absorption search. Our previous FAST blind HI absorption search identified 34 systems. In this work, we extend the search using 2024 and part of the 2025 CRAFTS and FASHI data (394.4 hr and 1622.1 deg$^{2}$) together with FATHOMER observations, yielding three known and four new HI absorbers, for a total of 41 HI absorption systems. We search for OH absorption in 19 HI absorption systems whose OH redshifted frequencies fall within the FAST b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.15595","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2607.15595/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-20T00:18:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hXzxhbCZ3z4SX8DhLioLccSZphrThvqSfYcXfXPufJYns2k6lyQS/SfCkLCtfGFfgmrGzd5/ypB38yxis1QeDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T21:37:27.897233Z"},"content_sha256":"720265582367348dc5c5cf5d7d49477997e0a155fa43f46bbbf169de3d28b93a","schema_version":"1.0","event_id":"sha256:720265582367348dc5c5cf5d7d49477997e0a155fa43f46bbbf169de3d28b93a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6F7Z5NKPXNDNOW62C67A7NK5S7/bundle.json","state_url":"https://pith.science/pith/6F7Z5NKPXNDNOW62C67A7NK5S7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6F7Z5NKPXNDNOW62C67A7NK5S7/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":"2026-08-03T21:37:27Z","links":{"resolver":"https://pith.science/pith/6F7Z5NKPXNDNOW62C67A7NK5S7","bundle":"https://pith.science/pith/6F7Z5NKPXNDNOW62C67A7NK5S7/bundle.json","state":"https://pith.science/pith/6F7Z5NKPXNDNOW62C67A7NK5S7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6F7Z5NKPXNDNOW62C67A7NK5S7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:6F7Z5NKPXNDNOW62C67A7NK5S7","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":"617346cecb1f682b0833e0f3917a138fe510bb03327de8f054d531cf99a94760","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-07-17T03:43:33Z","title_canon_sha256":"88c9d180eaef853a7b89ef68268ed7a4bbd342279b782c47c6b05279d125c644"},"schema_version":"1.0","source":{"id":"2607.15595","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.15595","created_at":"2026-07-20T00:18:42Z"},{"alias_kind":"arxiv_version","alias_value":"2607.15595v1","created_at":"2026-07-20T00:18:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.15595","created_at":"2026-07-20T00:18:42Z"},{"alias_kind":"pith_short_12","alias_value":"6F7Z5NKPXNDN","created_at":"2026-07-20T00:18:42Z"},{"alias_kind":"pith_short_16","alias_value":"6F7Z5NKPXNDNOW62","created_at":"2026-07-20T00:18:42Z"},{"alias_kind":"pith_short_8","alias_value":"6F7Z5NKP","created_at":"2026-07-20T00:18:42Z"}],"graph_snapshots":[{"event_id":"sha256:720265582367348dc5c5cf5d7d49477997e0a155fa43f46bbbf169de3d28b93a","target":"graph","created_at":"2026-07-20T00:18:42Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2607.15595/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the first blind search for OH 18-cm absorption with the Five-hundred-meter Aperture Spherical Telescope (FAST), conducted alongside the HI 21-cm absorption search. Our previous FAST blind HI absorption search identified 34 systems. In this work, we extend the search using 2024 and part of the 2025 CRAFTS and FASHI data (394.4 hr and 1622.1 deg$^{2}$) together with FATHOMER observations, yielding three known and four new HI absorbers, for a total of 41 HI absorption systems. We search for OH absorption in 19 HI absorption systems whose OH redshifted frequencies fall within the FAST b","authors_text":"Di Li, Elaine M. Sadler, Fengquan Wu, James R. Allison, Jeremy Darling, Jie Wang, Ming Zhu, Wenkai Hu, Wenxiu Yang, Xuelei Chen, Yichao Li, Yidong Xu, Yougang Wang, Zheng Zheng","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-07-17T03:43:33Z","title":"The FAST HI 21-cm Absorption Blind Survey. III. OH Absorption Search in the 21-cm Absorber Sample and Continued HI Absorption Search"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.15595","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":"sha256:99f1947e0c374b99c91550078fc9b5419d1659a2aa29db71c283d1094cc37195","target":"record","created_at":"2026-07-20T00:18:42Z","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":"617346cecb1f682b0833e0f3917a138fe510bb03327de8f054d531cf99a94760","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-07-17T03:43:33Z","title_canon_sha256":"88c9d180eaef853a7b89ef68268ed7a4bbd342279b782c47c6b05279d125c644"},"schema_version":"1.0","source":{"id":"2607.15595","kind":"arxiv","version":1}},"canonical_sha256":"f17f9eb54fbb46d75bda17be0fb55d97cffbd0c298b744f81d328545bfad31de","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f17f9eb54fbb46d75bda17be0fb55d97cffbd0c298b744f81d328545bfad31de","first_computed_at":"2026-07-20T00:18:42.671269Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-20T00:18:42.671269Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"USmpSoYOobdaTHMlCbkqB0ogGvtN85bWTqJaW7UOUaKIoMgLhGN+LpQSluL0GXXUpTmXReLCVdLSZqwC5wXxCw==","signature_status":"signed_v1","signed_at":"2026-07-20T00:18:42.672072Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.15595","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:99f1947e0c374b99c91550078fc9b5419d1659a2aa29db71c283d1094cc37195","sha256:720265582367348dc5c5cf5d7d49477997e0a155fa43f46bbbf169de3d28b93a"],"state_sha256":"ecfa9636dd6fdc8c42b9c78f03d780fb327816683531be91af8e18da97401c03"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9FMS2UGEPxWfGygQSUntS2CTAWQ7/iEmVVcLnn7MCae9iZJ9UtxD0MfBRzaML9QZ1uzwvbTSEk6gcbF+BUv5Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T21:37:27.902239Z","bundle_sha256":"9e0a222c05d5167556787a8641ba22f062fdcbaf3ebe2e7816b9058675e68fde"}}