{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:62R7QWGP2S3LVHAT33BXKC7XUM","short_pith_number":"pith:62R7QWGP","canonical_record":{"source":{"id":"1912.08657","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-12-18T15:22:01Z","cross_cats_sorted":[],"title_canon_sha256":"9dbbb7625fce7b8e14401e7f95bee119033dc709a9de8120be65f9a345cb31f8","abstract_canon_sha256":"98bfbf906b12f3de78d19f5c546deac66ea608260d922d41becdd0dcd5725444"},"schema_version":"1.0"},"canonical_sha256":"f6a3f858cfd4b6ba9c13dec3750bf7a319ffb8bb9ad9607da338a59f528dbcaa","source":{"kind":"arxiv","id":"1912.08657","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1912.08657","created_at":"2026-07-05T00:40:07Z"},{"alias_kind":"arxiv_version","alias_value":"1912.08657v1","created_at":"2026-07-05T00:40:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1912.08657","created_at":"2026-07-05T00:40:07Z"},{"alias_kind":"pith_short_12","alias_value":"62R7QWGP2S3L","created_at":"2026-07-05T00:40:07Z"},{"alias_kind":"pith_short_16","alias_value":"62R7QWGP2S3LVHAT","created_at":"2026-07-05T00:40:07Z"},{"alias_kind":"pith_short_8","alias_value":"62R7QWGP","created_at":"2026-07-05T00:40:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:62R7QWGP2S3LVHAT33BXKC7XUM","target":"record","payload":{"canonical_record":{"source":{"id":"1912.08657","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-12-18T15:22:01Z","cross_cats_sorted":[],"title_canon_sha256":"9dbbb7625fce7b8e14401e7f95bee119033dc709a9de8120be65f9a345cb31f8","abstract_canon_sha256":"98bfbf906b12f3de78d19f5c546deac66ea608260d922d41becdd0dcd5725444"},"schema_version":"1.0"},"canonical_sha256":"f6a3f858cfd4b6ba9c13dec3750bf7a319ffb8bb9ad9607da338a59f528dbcaa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:40:07.002195Z","signature_b64":"9xqMqzFgkdzeknW5jWZ3GWPRjRVBiMvD4jEZFW42x3P7uQLDUt7HmbJZGFOEza8aURZuBMB2snZc7yZDof67Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f6a3f858cfd4b6ba9c13dec3750bf7a319ffb8bb9ad9607da338a59f528dbcaa","last_reissued_at":"2026-07-05T00:40:07.001793Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:40:07.001793Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1912.08657","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":"2026-07-05T00:40:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1bGdfwSfimcNNSCf8/D2RNUjJYsb7SJ+1CkYJsq1k5iniZ/UA7ND4AOHdH4yE0Gp8z8D+2BM+pI4lVGyjuinDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T15:32:27.423468Z"},"content_sha256":"3c11df663fa5e204444e23a8facf5af2e4646a2ee312889bf7c368a9a2ccd42a","schema_version":"1.0","event_id":"sha256:3c11df663fa5e204444e23a8facf5af2e4646a2ee312889bf7c368a9a2ccd42a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:62R7QWGP2S3LVHAT33BXKC7XUM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The GBT Diffuse Ionized Gas Survey: Tracing the Diffuse Ionized Gas around the Giant HII Region W43","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Bin Liu, Dana S. Balser, L. D. Anderson, L. M. Haffner, Matteo Luisi, T. M. Bania, Trey V. Wenger","submitted_at":"2019-12-18T15:22:01Z","abstract_excerpt":"The Green Bank Telescope (GBT) Diffuse Ionized Gas Survey (GDIGS) is a fully-sampled radio recombination line (RRL) survey of the inner Galaxy at C-band (4-8 GHz). We average together ~15 Hn$\\alpha$ RRLs within the receiver bandpass to improve the spectral signal-to-noise ratio. The average beam size for the RRL observations at these frequencies is ~2'. We grid these data to have spatial and velocity spacings of 30\" and 0.5 km/s, respectively. Here we discuss the first RRL data from GDIGS: a six square-degree-area surrounding the Galactic HII region complex W43. We attempt to create a map devo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1912.08657","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/1912.08657/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":"2026-07-05T00:40:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3W0xedo7AoQYz5MRqXa2afhGEg5/pMnl9x489rWnDFsqwVRvpqgTBsR9zvuARf9XZuef54k3NalU1vMVagRWDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T15:32:27.424535Z"},"content_sha256":"145e4e4c88f04c576e4b2cd1eaf63775b185c2e311e9749c228010cb3d14e05c","schema_version":"1.0","event_id":"sha256:145e4e4c88f04c576e4b2cd1eaf63775b185c2e311e9749c228010cb3d14e05c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/62R7QWGP2S3LVHAT33BXKC7XUM/bundle.json","state_url":"https://pith.science/pith/62R7QWGP2S3LVHAT33BXKC7XUM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/62R7QWGP2S3LVHAT33BXKC7XUM/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":"2026-08-03T15:32:27Z","links":{"resolver":"https://pith.science/pith/62R7QWGP2S3LVHAT33BXKC7XUM","bundle":"https://pith.science/pith/62R7QWGP2S3LVHAT33BXKC7XUM/bundle.json","state":"https://pith.science/pith/62R7QWGP2S3LVHAT33BXKC7XUM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/62R7QWGP2S3LVHAT33BXKC7XUM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:62R7QWGP2S3LVHAT33BXKC7XUM","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":"98bfbf906b12f3de78d19f5c546deac66ea608260d922d41becdd0dcd5725444","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-12-18T15:22:01Z","title_canon_sha256":"9dbbb7625fce7b8e14401e7f95bee119033dc709a9de8120be65f9a345cb31f8"},"schema_version":"1.0","source":{"id":"1912.08657","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1912.08657","created_at":"2026-07-05T00:40:07Z"},{"alias_kind":"arxiv_version","alias_value":"1912.08657v1","created_at":"2026-07-05T00:40:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1912.08657","created_at":"2026-07-05T00:40:07Z"},{"alias_kind":"pith_short_12","alias_value":"62R7QWGP2S3L","created_at":"2026-07-05T00:40:07Z"},{"alias_kind":"pith_short_16","alias_value":"62R7QWGP2S3LVHAT","created_at":"2026-07-05T00:40:07Z"},{"alias_kind":"pith_short_8","alias_value":"62R7QWGP","created_at":"2026-07-05T00:40:07Z"}],"graph_snapshots":[{"event_id":"sha256:145e4e4c88f04c576e4b2cd1eaf63775b185c2e311e9749c228010cb3d14e05c","target":"graph","created_at":"2026-07-05T00:40:07Z","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/1912.08657/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Green Bank Telescope (GBT) Diffuse Ionized Gas Survey (GDIGS) is a fully-sampled radio recombination line (RRL) survey of the inner Galaxy at C-band (4-8 GHz). We average together ~15 Hn$\\alpha$ RRLs within the receiver bandpass to improve the spectral signal-to-noise ratio. The average beam size for the RRL observations at these frequencies is ~2'. We grid these data to have spatial and velocity spacings of 30\" and 0.5 km/s, respectively. Here we discuss the first RRL data from GDIGS: a six square-degree-area surrounding the Galactic HII region complex W43. We attempt to create a map devo","authors_text":"Bin Liu, Dana S. Balser, L. D. Anderson, L. M. Haffner, Matteo Luisi, T. M. Bania, Trey V. Wenger","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-12-18T15:22:01Z","title":"The GBT Diffuse Ionized Gas Survey: Tracing the Diffuse Ionized Gas around the Giant HII Region W43"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1912.08657","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":"sha256:3c11df663fa5e204444e23a8facf5af2e4646a2ee312889bf7c368a9a2ccd42a","target":"record","created_at":"2026-07-05T00:40:07Z","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":"98bfbf906b12f3de78d19f5c546deac66ea608260d922d41becdd0dcd5725444","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-12-18T15:22:01Z","title_canon_sha256":"9dbbb7625fce7b8e14401e7f95bee119033dc709a9de8120be65f9a345cb31f8"},"schema_version":"1.0","source":{"id":"1912.08657","kind":"arxiv","version":1}},"canonical_sha256":"f6a3f858cfd4b6ba9c13dec3750bf7a319ffb8bb9ad9607da338a59f528dbcaa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f6a3f858cfd4b6ba9c13dec3750bf7a319ffb8bb9ad9607da338a59f528dbcaa","first_computed_at":"2026-07-05T00:40:07.001793Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:40:07.001793Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9xqMqzFgkdzeknW5jWZ3GWPRjRVBiMvD4jEZFW42x3P7uQLDUt7HmbJZGFOEza8aURZuBMB2snZc7yZDof67Aw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:40:07.002195Z","signed_message":"canonical_sha256_bytes"},"source_id":"1912.08657","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3c11df663fa5e204444e23a8facf5af2e4646a2ee312889bf7c368a9a2ccd42a","sha256:145e4e4c88f04c576e4b2cd1eaf63775b185c2e311e9749c228010cb3d14e05c"],"state_sha256":"dddf753953e496b262eec0834450c9385c0f4167a8805e3a270e4360836ec634"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y7IPMadVELYMQ9Eqi6473bCLkzjxkelwPCa073Oo7LMcI7cqoT36J/8E5Td+e8TRcweaC5DaUAj+Bg+7oCk+Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T15:32:27.433672Z","bundle_sha256":"280f61375a734a7e7f70a090c92226f8faf0c8d29a4b694a921f8546b5beba74"}}