{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:Y4GKNN4TVVWEIEV3HSH6J5FGAY","short_pith_number":"pith:Y4GKNN4T","canonical_record":{"source":{"id":"1307.5071","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-07-18T20:07:16Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"3695386765368e6ca13633b8bc43a5db5ddc1aac478ecb8c3364ddd198e50aa6","abstract_canon_sha256":"c2a9d840c79109c68119481fad1be9974356bdccce4585c1e91af63d138dd6b5"},"schema_version":"1.0"},"canonical_sha256":"c70ca6b793ad6c4412bb3c8fe4f4a60636bd4fc3b840ca5c66bf7e282d902bfc","source":{"kind":"arxiv","id":"1307.5071","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.5071","created_at":"2026-05-18T03:15:55Z"},{"alias_kind":"arxiv_version","alias_value":"1307.5071v1","created_at":"2026-05-18T03:15:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.5071","created_at":"2026-05-18T03:15:55Z"},{"alias_kind":"pith_short_12","alias_value":"Y4GKNN4TVVWE","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"Y4GKNN4TVVWEIEV3","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"Y4GKNN4T","created_at":"2026-05-18T12:28:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:Y4GKNN4TVVWEIEV3HSH6J5FGAY","target":"record","payload":{"canonical_record":{"source":{"id":"1307.5071","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-07-18T20:07:16Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"3695386765368e6ca13633b8bc43a5db5ddc1aac478ecb8c3364ddd198e50aa6","abstract_canon_sha256":"c2a9d840c79109c68119481fad1be9974356bdccce4585c1e91af63d138dd6b5"},"schema_version":"1.0"},"canonical_sha256":"c70ca6b793ad6c4412bb3c8fe4f4a60636bd4fc3b840ca5c66bf7e282d902bfc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:15:55.499714Z","signature_b64":"MdH6wmf37KeYaeuahoaTOJD5BQxc+cBAcdxx90fbOUkDmR2zRmlbWrgrTFRQGFp+f5GKT2bRpodA2NPpN+WQCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c70ca6b793ad6c4412bb3c8fe4f4a60636bd4fc3b840ca5c66bf7e282d902bfc","last_reissued_at":"2026-05-18T03:15:55.498855Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:15:55.498855Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1307.5071","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":"2026-05-18T03:15:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p9wPXAK9qrVWTKYCBg01GCBumECaJC8ytv2dmED4fCIgdGAghnydubQfU8eFija/JOq79X+DwQTbgnt9STkxBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T01:40:08.566911Z"},"content_sha256":"4bfac3fde22d7471d3718fb04452d0a159bff4e88ecacf439185afa0b811ad25","schema_version":"1.0","event_id":"sha256:4bfac3fde22d7471d3718fb04452d0a159bff4e88ecacf439185afa0b811ad25"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:Y4GKNN4TVVWEIEV3HSH6J5FGAY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constraints on OH Megamaser Excitation from a Survey of OH Satellite Lines","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"(2) University of Kentucky), Berkeley, Carl Heiles (1), James McBride (1), Moshe Elitzur (2) ((1) University of California","submitted_at":"2013-07-18T20:07:16Z","abstract_excerpt":"We report the results of a full-Stokes survey of all four 18 cm OH lines in 77 OH megamasers (OHMs) using the Arecibo Observatory. This is the first survey of OHMs that included observations of the OH satellite lines; only 4 of the 77 OHMs have existing satellite line observations in the literature. In 5 sources, satellite line emission is detected, with 3 of the 5 sources re-detections of previously published sources. The 2 sources with new detections of satellite line emission are IRAS F10173+0829, which was detected at 1720 MHz, and IRAS F15107+0724, for which both the 1612 MHz and 1720 MHz"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.5071","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":"2026-05-18T03:15:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MHHbF2uqt3IAHgGKJCki0/AAIP3q/q5kgRl9MQzQD6a+1jWluZ/BrqerFKAa11GRFf7ExzOZ/qnkICTdekcaBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T01:40:08.567262Z"},"content_sha256":"a88cd43c72c047109f436dac419be86d3c1cfdc3ddf354daf747c6cafebac46d","schema_version":"1.0","event_id":"sha256:a88cd43c72c047109f436dac419be86d3c1cfdc3ddf354daf747c6cafebac46d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Y4GKNN4TVVWEIEV3HSH6J5FGAY/bundle.json","state_url":"https://pith.science/pith/Y4GKNN4TVVWEIEV3HSH6J5FGAY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Y4GKNN4TVVWEIEV3HSH6J5FGAY/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":"2026-05-28T01:40:08Z","links":{"resolver":"https://pith.science/pith/Y4GKNN4TVVWEIEV3HSH6J5FGAY","bundle":"https://pith.science/pith/Y4GKNN4TVVWEIEV3HSH6J5FGAY/bundle.json","state":"https://pith.science/pith/Y4GKNN4TVVWEIEV3HSH6J5FGAY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Y4GKNN4TVVWEIEV3HSH6J5FGAY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:Y4GKNN4TVVWEIEV3HSH6J5FGAY","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":"c2a9d840c79109c68119481fad1be9974356bdccce4585c1e91af63d138dd6b5","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-07-18T20:07:16Z","title_canon_sha256":"3695386765368e6ca13633b8bc43a5db5ddc1aac478ecb8c3364ddd198e50aa6"},"schema_version":"1.0","source":{"id":"1307.5071","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.5071","created_at":"2026-05-18T03:15:55Z"},{"alias_kind":"arxiv_version","alias_value":"1307.5071v1","created_at":"2026-05-18T03:15:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.5071","created_at":"2026-05-18T03:15:55Z"},{"alias_kind":"pith_short_12","alias_value":"Y4GKNN4TVVWE","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"Y4GKNN4TVVWEIEV3","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"Y4GKNN4T","created_at":"2026-05-18T12:28:06Z"}],"graph_snapshots":[{"event_id":"sha256:a88cd43c72c047109f436dac419be86d3c1cfdc3ddf354daf747c6cafebac46d","target":"graph","created_at":"2026-05-18T03:15:55Z","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 results of a full-Stokes survey of all four 18 cm OH lines in 77 OH megamasers (OHMs) using the Arecibo Observatory. This is the first survey of OHMs that included observations of the OH satellite lines; only 4 of the 77 OHMs have existing satellite line observations in the literature. In 5 sources, satellite line emission is detected, with 3 of the 5 sources re-detections of previously published sources. The 2 sources with new detections of satellite line emission are IRAS F10173+0829, which was detected at 1720 MHz, and IRAS F15107+0724, for which both the 1612 MHz and 1720 MHz","authors_text":"(2) University of Kentucky), Berkeley, Carl Heiles (1), James McBride (1), Moshe Elitzur (2) ((1) University of California","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-07-18T20:07:16Z","title":"Constraints on OH Megamaser Excitation from a Survey of OH Satellite Lines"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.5071","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":"sha256:4bfac3fde22d7471d3718fb04452d0a159bff4e88ecacf439185afa0b811ad25","target":"record","created_at":"2026-05-18T03:15:55Z","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":"c2a9d840c79109c68119481fad1be9974356bdccce4585c1e91af63d138dd6b5","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-07-18T20:07:16Z","title_canon_sha256":"3695386765368e6ca13633b8bc43a5db5ddc1aac478ecb8c3364ddd198e50aa6"},"schema_version":"1.0","source":{"id":"1307.5071","kind":"arxiv","version":1}},"canonical_sha256":"c70ca6b793ad6c4412bb3c8fe4f4a60636bd4fc3b840ca5c66bf7e282d902bfc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c70ca6b793ad6c4412bb3c8fe4f4a60636bd4fc3b840ca5c66bf7e282d902bfc","first_computed_at":"2026-05-18T03:15:55.498855Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:15:55.498855Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MdH6wmf37KeYaeuahoaTOJD5BQxc+cBAcdxx90fbOUkDmR2zRmlbWrgrTFRQGFp+f5GKT2bRpodA2NPpN+WQCg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:15:55.499714Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.5071","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4bfac3fde22d7471d3718fb04452d0a159bff4e88ecacf439185afa0b811ad25","sha256:a88cd43c72c047109f436dac419be86d3c1cfdc3ddf354daf747c6cafebac46d"],"state_sha256":"fcd6ee0d239ff840601399e587a7ae1f4c2a281dacb45cc4d5ecf1143be8be76"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qVdx547k6XXS9cgKi+ejFzALFF55nA6ve86Hc3ipZjaqurNXEqtBG9oSwSJ0cgAeUsEZEf3hwkDt+fJOWh+IBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T01:40:08.569222Z","bundle_sha256":"729ccd03fdb6425ef5b694da17dc8dc8df0a6c5552bd6949b321de1a5db3997e"}}