{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:GQF6VT7Q2XNW2EGSMGDDHTTUH3","short_pith_number":"pith:GQF6VT7Q","canonical_record":{"source":{"id":"1509.06917","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-09-23T11:02:29Z","cross_cats_sorted":[],"title_canon_sha256":"0160da35ceaa926bfa05dd11765cb1d766dce9e5415c80932124f0c24092717f","abstract_canon_sha256":"da0122f97e3eb10b18de0c98993f7f2391aca9ebb54da778ddd755e4e595c05e"},"schema_version":"1.0"},"canonical_sha256":"340beacff0d5db6d10d2618633ce743eefbf521da33aea7f1254fca1a650baa9","source":{"kind":"arxiv","id":"1509.06917","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.06917","created_at":"2026-05-18T01:30:55Z"},{"alias_kind":"arxiv_version","alias_value":"1509.06917v1","created_at":"2026-05-18T01:30:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.06917","created_at":"2026-05-18T01:30:55Z"},{"alias_kind":"pith_short_12","alias_value":"GQF6VT7Q2XNW","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_16","alias_value":"GQF6VT7Q2XNW2EGS","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_8","alias_value":"GQF6VT7Q","created_at":"2026-05-18T12:29:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:GQF6VT7Q2XNW2EGSMGDDHTTUH3","target":"record","payload":{"canonical_record":{"source":{"id":"1509.06917","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-09-23T11:02:29Z","cross_cats_sorted":[],"title_canon_sha256":"0160da35ceaa926bfa05dd11765cb1d766dce9e5415c80932124f0c24092717f","abstract_canon_sha256":"da0122f97e3eb10b18de0c98993f7f2391aca9ebb54da778ddd755e4e595c05e"},"schema_version":"1.0"},"canonical_sha256":"340beacff0d5db6d10d2618633ce743eefbf521da33aea7f1254fca1a650baa9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:30:55.875932Z","signature_b64":"Bbz2frzsA2VXGMOCpP0yRFCslnxmRcynMUvWmVo9u8amUq4VKVaSYIHlpGSYXCDeOQe8yfmvMPpYgm6IqBE/Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"340beacff0d5db6d10d2618633ce743eefbf521da33aea7f1254fca1a650baa9","last_reissued_at":"2026-05-18T01:30:55.875463Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:30:55.875463Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1509.06917","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":"2026-05-18T01:30:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kRykWSCByo9kJ1F0TUFV5rRCoKRSWuPKZdQGJqCdEMdqY9CHdvf9fy/ESlnkisV+dg+QwJyS0ShFuWAbc2LHCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T21:45:46.403068Z"},"content_sha256":"0bdda14cdd3cbe082dcc32bbcaab7b5cbe39f79e6386f4c9793e6e5fc559aada","schema_version":"1.0","event_id":"sha256:0bdda14cdd3cbe082dcc32bbcaab7b5cbe39f79e6386f4c9793e6e5fc559aada"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:GQF6VT7Q2XNW2EGSMGDDHTTUH3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detection of extragalactic argonium, ArH$^+$, toward PKS~1830$-$211","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Dariusz C. Lis, David A. Neufeld, Edwin A. Bergin, Holger S.P. M\\\"uller, John H. Black, Maryvonne Gerin, Peter Schilke, S\\'ebastien Muller, S\\\"umeyye Suri","submitted_at":"2015-09-23T11:02:29Z","abstract_excerpt":"Argonium has recently been detected as a ubiquitous molecule in our Galaxy. Model calculations indicate that its abundance peaks at molecular fractions in the range of 1E-4 to 1E-3 and that the observed column densities require high values of the cosmic ray ionization rate. Therefore, this molecular cation may serve as an excellent tracer of the very diffuse interstellar medium (ISM), as well as an indicator of the cosmic ray ionization rate. We attempted to detect ArH+ in extragalactic sources to evaluate its diagnostic power as a tracer of the almost purely atomic ISM in distant galaxies. We"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.06917","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":"2026-05-18T01:30:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7Xnc3X0DXg2UFcbB93p4qAXIjcIXX6+utpd/ZcU93yDqyNNxZH06aYI4iu/DpEGf0hLoLlKj1QVeV15rZRCMCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T21:45:46.403785Z"},"content_sha256":"5b46e15e293b8544e1720db50d4f345fd4a39550a1090a9bdd9ddf6a4ca72d92","schema_version":"1.0","event_id":"sha256:5b46e15e293b8544e1720db50d4f345fd4a39550a1090a9bdd9ddf6a4ca72d92"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GQF6VT7Q2XNW2EGSMGDDHTTUH3/bundle.json","state_url":"https://pith.science/pith/GQF6VT7Q2XNW2EGSMGDDHTTUH3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GQF6VT7Q2XNW2EGSMGDDHTTUH3/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":"2026-05-29T21:45:46Z","links":{"resolver":"https://pith.science/pith/GQF6VT7Q2XNW2EGSMGDDHTTUH3","bundle":"https://pith.science/pith/GQF6VT7Q2XNW2EGSMGDDHTTUH3/bundle.json","state":"https://pith.science/pith/GQF6VT7Q2XNW2EGSMGDDHTTUH3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GQF6VT7Q2XNW2EGSMGDDHTTUH3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:GQF6VT7Q2XNW2EGSMGDDHTTUH3","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":"da0122f97e3eb10b18de0c98993f7f2391aca9ebb54da778ddd755e4e595c05e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-09-23T11:02:29Z","title_canon_sha256":"0160da35ceaa926bfa05dd11765cb1d766dce9e5415c80932124f0c24092717f"},"schema_version":"1.0","source":{"id":"1509.06917","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.06917","created_at":"2026-05-18T01:30:55Z"},{"alias_kind":"arxiv_version","alias_value":"1509.06917v1","created_at":"2026-05-18T01:30:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.06917","created_at":"2026-05-18T01:30:55Z"},{"alias_kind":"pith_short_12","alias_value":"GQF6VT7Q2XNW","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_16","alias_value":"GQF6VT7Q2XNW2EGS","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_8","alias_value":"GQF6VT7Q","created_at":"2026-05-18T12:29:22Z"}],"graph_snapshots":[{"event_id":"sha256:5b46e15e293b8544e1720db50d4f345fd4a39550a1090a9bdd9ddf6a4ca72d92","target":"graph","created_at":"2026-05-18T01:30:55Z","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":"Argonium has recently been detected as a ubiquitous molecule in our Galaxy. Model calculations indicate that its abundance peaks at molecular fractions in the range of 1E-4 to 1E-3 and that the observed column densities require high values of the cosmic ray ionization rate. Therefore, this molecular cation may serve as an excellent tracer of the very diffuse interstellar medium (ISM), as well as an indicator of the cosmic ray ionization rate. We attempted to detect ArH+ in extragalactic sources to evaluate its diagnostic power as a tracer of the almost purely atomic ISM in distant galaxies. We","authors_text":"Dariusz C. Lis, David A. Neufeld, Edwin A. Bergin, Holger S.P. M\\\"uller, John H. Black, Maryvonne Gerin, Peter Schilke, S\\'ebastien Muller, S\\\"umeyye Suri","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-09-23T11:02:29Z","title":"Detection of extragalactic argonium, ArH$^+$, toward PKS~1830$-$211"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.06917","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":"sha256:0bdda14cdd3cbe082dcc32bbcaab7b5cbe39f79e6386f4c9793e6e5fc559aada","target":"record","created_at":"2026-05-18T01:30:55Z","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":"da0122f97e3eb10b18de0c98993f7f2391aca9ebb54da778ddd755e4e595c05e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-09-23T11:02:29Z","title_canon_sha256":"0160da35ceaa926bfa05dd11765cb1d766dce9e5415c80932124f0c24092717f"},"schema_version":"1.0","source":{"id":"1509.06917","kind":"arxiv","version":1}},"canonical_sha256":"340beacff0d5db6d10d2618633ce743eefbf521da33aea7f1254fca1a650baa9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"340beacff0d5db6d10d2618633ce743eefbf521da33aea7f1254fca1a650baa9","first_computed_at":"2026-05-18T01:30:55.875463Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:30:55.875463Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Bbz2frzsA2VXGMOCpP0yRFCslnxmRcynMUvWmVo9u8amUq4VKVaSYIHlpGSYXCDeOQe8yfmvMPpYgm6IqBE/Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:30:55.875932Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.06917","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0bdda14cdd3cbe082dcc32bbcaab7b5cbe39f79e6386f4c9793e6e5fc559aada","sha256:5b46e15e293b8544e1720db50d4f345fd4a39550a1090a9bdd9ddf6a4ca72d92"],"state_sha256":"55ff7066f4c8ed2a6028d6d63177b96e4569d2f5d179f208ac1700473200d422"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ry20Zh/SfwSqSiYpiLUEp3Dl4eSAR/1SEEvIqySYGZLdIoSuugLh4+xSwroIbSTe7LrzEJwXbLUuzTjrMMa0BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T21:45:46.406642Z","bundle_sha256":"2758217654f6edcde7c58d973aea0d7f4c3f1a23768d9ed6ec410b2592a16f50"}}