{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:2IC2RKK63L5QTQ6WL3PO5LGPV7","short_pith_number":"pith:2IC2RKK6","canonical_record":{"source":{"id":"1609.03329","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-09-12T10:00:53Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"05446433f4be5262b7873a08f2dcf2f816ce605a67db4454024af1fffbfc74cf","abstract_canon_sha256":"903f4a391eb6a86060fac49e7a18806054a84cb18b62eaab296b5ef49b425f34"},"schema_version":"1.0"},"canonical_sha256":"d205a8a95edafb09c3d65edeeeaccfaff459bef11acc76f3e5da2f740a6e5d26","source":{"kind":"arxiv","id":"1609.03329","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.03329","created_at":"2026-05-18T00:39:40Z"},{"alias_kind":"arxiv_version","alias_value":"1609.03329v1","created_at":"2026-05-18T00:39:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.03329","created_at":"2026-05-18T00:39:40Z"},{"alias_kind":"pith_short_12","alias_value":"2IC2RKK63L5Q","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_16","alias_value":"2IC2RKK63L5QTQ6W","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_8","alias_value":"2IC2RKK6","created_at":"2026-05-18T12:29:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:2IC2RKK63L5QTQ6WL3PO5LGPV7","target":"record","payload":{"canonical_record":{"source":{"id":"1609.03329","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-09-12T10:00:53Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"05446433f4be5262b7873a08f2dcf2f816ce605a67db4454024af1fffbfc74cf","abstract_canon_sha256":"903f4a391eb6a86060fac49e7a18806054a84cb18b62eaab296b5ef49b425f34"},"schema_version":"1.0"},"canonical_sha256":"d205a8a95edafb09c3d65edeeeaccfaff459bef11acc76f3e5da2f740a6e5d26","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:39:40.208434Z","signature_b64":"Bq/IgF5pYFO+3TshgtShQnE/pegJ8BijMn5XgYdEHLylTMrJwjq1EkGefSmde4dIaFq51u+u53YvLKdX18e6CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d205a8a95edafb09c3d65edeeeaccfaff459bef11acc76f3e5da2f740a6e5d26","last_reissued_at":"2026-05-18T00:39:40.207730Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:39:40.207730Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1609.03329","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":"2026-05-18T00:39:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z/vOEsGGYfZhWlKQ50F4Pq/OIrdQLuKpiYPiHhNqyZxhDVtZvM37ddfZ6Q4vQfXmPv0xL/KYUuVZpvGfUYgbCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T21:39:34.199543Z"},"content_sha256":"d200267a4bd3fd43762e6b328f74339703549862bee1c4bb83a9c8fe31974332","schema_version":"1.0","event_id":"sha256:d200267a4bd3fd43762e6b328f74339703549862bee1c4bb83a9c8fe31974332"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:2IC2RKK63L5QTQ6WL3PO5LGPV7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The HI/OH/Recombination line survey of the inner Milky Way (THOR)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"A. Brunthaler, A.J. Walsh, F. Bigiel, F. Walter, H. Beuther, J. Kainulainen, J. Ott, J. Stil, J.S. Urquhart, K. Johnston, K.M. Menten, L.D. Anderson, M. Heyer, M. Rugel, N.M. McClure-Griffiths, N. Roy, N. Schneider, P.F. Goldsmith, Q. Nguyen-Luong, R. Plume, R. Shanahan, R.S. Klessen, R. Smith, S. Bihr, S.C.O. Glover, S.E. Ragan, S.N. Longmore, Th. Henning, T. Schierhuber, Y. Wang","submitted_at":"2016-09-12T10:00:53Z","abstract_excerpt":"Context: The past decade has witnessed a large number of Galactic plane surveys at angular resolutions below 20\". However, no comparable high-resolution survey exists at long radio wavelengths around 21cm in line and continuum emission. Methods: Employing the Very Large Array (VLA) in the C-array configuration and a large program, we observe the HI 21cm line, four OH lines, nineteen Halpha radio recombination lines as well as the continuum emission from 1 to 2GHz in full polarization over a large part of the first Galactic quadrant. Results: Covering Galactic longitudes from 14.5 to 67.4deg an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.03329","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":"2026-05-18T00:39:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8KW+xkxKz7GE0eIKCkTlOZwVLVmdqWU8E94O7wI8eiRK+CKKN3k21S0RoRlrcTJEEO2jx2/6GEELM3uHi2V9CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T21:39:34.200150Z"},"content_sha256":"2eb5a2be15f6774c4eadcfc2ade490cd1e2b3021b5c63dcf0c3a9184f072df48","schema_version":"1.0","event_id":"sha256:2eb5a2be15f6774c4eadcfc2ade490cd1e2b3021b5c63dcf0c3a9184f072df48"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2IC2RKK63L5QTQ6WL3PO5LGPV7/bundle.json","state_url":"https://pith.science/pith/2IC2RKK63L5QTQ6WL3PO5LGPV7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2IC2RKK63L5QTQ6WL3PO5LGPV7/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":"2026-05-30T21:39:34Z","links":{"resolver":"https://pith.science/pith/2IC2RKK63L5QTQ6WL3PO5LGPV7","bundle":"https://pith.science/pith/2IC2RKK63L5QTQ6WL3PO5LGPV7/bundle.json","state":"https://pith.science/pith/2IC2RKK63L5QTQ6WL3PO5LGPV7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2IC2RKK63L5QTQ6WL3PO5LGPV7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:2IC2RKK63L5QTQ6WL3PO5LGPV7","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":"903f4a391eb6a86060fac49e7a18806054a84cb18b62eaab296b5ef49b425f34","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-09-12T10:00:53Z","title_canon_sha256":"05446433f4be5262b7873a08f2dcf2f816ce605a67db4454024af1fffbfc74cf"},"schema_version":"1.0","source":{"id":"1609.03329","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.03329","created_at":"2026-05-18T00:39:40Z"},{"alias_kind":"arxiv_version","alias_value":"1609.03329v1","created_at":"2026-05-18T00:39:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.03329","created_at":"2026-05-18T00:39:40Z"},{"alias_kind":"pith_short_12","alias_value":"2IC2RKK63L5Q","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_16","alias_value":"2IC2RKK63L5QTQ6W","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_8","alias_value":"2IC2RKK6","created_at":"2026-05-18T12:29:55Z"}],"graph_snapshots":[{"event_id":"sha256:2eb5a2be15f6774c4eadcfc2ade490cd1e2b3021b5c63dcf0c3a9184f072df48","target":"graph","created_at":"2026-05-18T00:39:40Z","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":"Context: The past decade has witnessed a large number of Galactic plane surveys at angular resolutions below 20\". However, no comparable high-resolution survey exists at long radio wavelengths around 21cm in line and continuum emission. Methods: Employing the Very Large Array (VLA) in the C-array configuration and a large program, we observe the HI 21cm line, four OH lines, nineteen Halpha radio recombination lines as well as the continuum emission from 1 to 2GHz in full polarization over a large part of the first Galactic quadrant. Results: Covering Galactic longitudes from 14.5 to 67.4deg an","authors_text":"A. Brunthaler, A.J. Walsh, F. Bigiel, F. Walter, H. Beuther, J. Kainulainen, J. Ott, J. Stil, J.S. Urquhart, K. Johnston, K.M. Menten, L.D. Anderson, M. Heyer, M. Rugel, N.M. McClure-Griffiths, N. Roy, N. Schneider, P.F. Goldsmith, Q. Nguyen-Luong, R. Plume, R. Shanahan, R.S. Klessen, R. Smith, S. Bihr, S.C.O. Glover, S.E. Ragan, S.N. Longmore, Th. Henning, T. Schierhuber, Y. Wang","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-09-12T10:00:53Z","title":"The HI/OH/Recombination line survey of the inner Milky Way (THOR)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.03329","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:d200267a4bd3fd43762e6b328f74339703549862bee1c4bb83a9c8fe31974332","target":"record","created_at":"2026-05-18T00:39:40Z","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":"903f4a391eb6a86060fac49e7a18806054a84cb18b62eaab296b5ef49b425f34","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-09-12T10:00:53Z","title_canon_sha256":"05446433f4be5262b7873a08f2dcf2f816ce605a67db4454024af1fffbfc74cf"},"schema_version":"1.0","source":{"id":"1609.03329","kind":"arxiv","version":1}},"canonical_sha256":"d205a8a95edafb09c3d65edeeeaccfaff459bef11acc76f3e5da2f740a6e5d26","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d205a8a95edafb09c3d65edeeeaccfaff459bef11acc76f3e5da2f740a6e5d26","first_computed_at":"2026-05-18T00:39:40.207730Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:39:40.207730Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Bq/IgF5pYFO+3TshgtShQnE/pegJ8BijMn5XgYdEHLylTMrJwjq1EkGefSmde4dIaFq51u+u53YvLKdX18e6CQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:39:40.208434Z","signed_message":"canonical_sha256_bytes"},"source_id":"1609.03329","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d200267a4bd3fd43762e6b328f74339703549862bee1c4bb83a9c8fe31974332","sha256:2eb5a2be15f6774c4eadcfc2ade490cd1e2b3021b5c63dcf0c3a9184f072df48"],"state_sha256":"0364ac8f77fbf6263e3eded29be22c0e4b57b00c57b18557390e7dc422e808b9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"25SaEb5cI8mm1DPibKtiYjVWKPT5tHL1qaQB1DrqK1eqXlRnz2O56+hQamaTJZcz6MJUPLMWP83sPAdb3O38Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T21:39:34.203875Z","bundle_sha256":"53b03f32c469d4d4c3d1c3b801001e486826a58148dfbc6efcc586112323745a"}}