{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:5DG5AAJGYJ7LM7NTNXZSHWYZNP","short_pith_number":"pith:5DG5AAJG","canonical_record":{"source":{"id":"1804.07825","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-04-20T21:06:58Z","cross_cats_sorted":[],"title_canon_sha256":"f1a442f894d63bf9e7c2a25aef2422e70a69517a3f87184ee0fa3e73bfada529","abstract_canon_sha256":"7b291ee5ed4ba5d3cd4624fff498e85c3ba4a6933cc6861b0194b2dce95853f3"},"schema_version":"1.0"},"canonical_sha256":"e8cdd00126c27eb67db36df323db196bcbbdf68c12681419c7abeb0f30245c89","source":{"kind":"arxiv","id":"1804.07825","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.07825","created_at":"2026-05-18T00:13:26Z"},{"alias_kind":"arxiv_version","alias_value":"1804.07825v1","created_at":"2026-05-18T00:13:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.07825","created_at":"2026-05-18T00:13:26Z"},{"alias_kind":"pith_short_12","alias_value":"5DG5AAJGYJ7L","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"5DG5AAJGYJ7LM7NT","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"5DG5AAJG","created_at":"2026-05-18T12:32:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:5DG5AAJGYJ7LM7NTNXZSHWYZNP","target":"record","payload":{"canonical_record":{"source":{"id":"1804.07825","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-04-20T21:06:58Z","cross_cats_sorted":[],"title_canon_sha256":"f1a442f894d63bf9e7c2a25aef2422e70a69517a3f87184ee0fa3e73bfada529","abstract_canon_sha256":"7b291ee5ed4ba5d3cd4624fff498e85c3ba4a6933cc6861b0194b2dce95853f3"},"schema_version":"1.0"},"canonical_sha256":"e8cdd00126c27eb67db36df323db196bcbbdf68c12681419c7abeb0f30245c89","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:13:26.098167Z","signature_b64":"GGrgEzhfOY4wk44PFzCYjntVRpyawZV6dWQlxZaC0NGliZJbEXQNwCyzCt22uoHCxWt+bPUwloJGLD1EIlviAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e8cdd00126c27eb67db36df323db196bcbbdf68c12681419c7abeb0f30245c89","last_reissued_at":"2026-05-18T00:13:26.097565Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:13:26.097565Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.07825","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":"2026-05-18T00:13:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yA17zRTsQUWY8a+LmYgXGpVcN+MPOV3ShDUoUYH0zK5qlMvRTUlI6NxBYDeXQy5esgAoJFkurYfCB8av3VceAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T23:10:54.814247Z"},"content_sha256":"cc6f41f880a10acd24ebfd8b324aa9570188918eea5a5914546c09c2eed4575e","schema_version":"1.0","event_id":"sha256:cc6f41f880a10acd24ebfd8b324aa9570188918eea5a5914546c09c2eed4575e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:5DG5AAJGYJ7LM7NTNXZSHWYZNP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"SOLIS IV. Hydrocarbons in the OMC-2 FIR 4 region, a probe of energetic particle irradiation of the region","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Jaber Al-Edhari, A. L\\'opez-Sepulcre, C. Ceccarelli, C. Codella, C. Favre, C. Kahane, E. Bianchi, E. Caux, F. Alves, F. Dulieu, F. Fontani, I. R. Sims, J. E. Pineda, M. Kama, N. Balucani, P. Caselli, P. Theul\\'e, R. Neri, S. Manigand","submitted_at":"2018-04-20T21:06:58Z","abstract_excerpt":"We report new interferometric images of cyclopropenylidene, c-C$_3$H$_2$, towards the young protocluster OMC-2 FIR\\,4. The observations were performed at 82 and 85 GHz with the NOrthern Extended Millimeter Array (NOEMA) as part of the project Seeds Of Life In Space (SOLIS). In addition, IRAM-30m data observations were used to investigate the physical structure of OMC-2 FIR\\,4. We find that the c-C$_3$H$_2$ gas emits from the same region where previous SOLIS observations showed bright HC$_5$N emission. From a non-LTE analysis of the IRAM-30m data, the c-C$_3$H$_2$ gas has an average temperature"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.07825","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":"2026-05-18T00:13:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i/ZZF7auCYvKGA5qhsBs5mV+LSMJOYk8Rtvvb1NqdspRmB30oqijtx8TLUeen2gU6q22LDi2aYswkxpnNSMaBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T23:10:54.815087Z"},"content_sha256":"c265c34a7bed6055f265c618378117c211d274886dcfd421549eed33c1b5927a","schema_version":"1.0","event_id":"sha256:c265c34a7bed6055f265c618378117c211d274886dcfd421549eed33c1b5927a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5DG5AAJGYJ7LM7NTNXZSHWYZNP/bundle.json","state_url":"https://pith.science/pith/5DG5AAJGYJ7LM7NTNXZSHWYZNP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5DG5AAJGYJ7LM7NTNXZSHWYZNP/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":"2026-05-30T23:10:54Z","links":{"resolver":"https://pith.science/pith/5DG5AAJGYJ7LM7NTNXZSHWYZNP","bundle":"https://pith.science/pith/5DG5AAJGYJ7LM7NTNXZSHWYZNP/bundle.json","state":"https://pith.science/pith/5DG5AAJGYJ7LM7NTNXZSHWYZNP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5DG5AAJGYJ7LM7NTNXZSHWYZNP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:5DG5AAJGYJ7LM7NTNXZSHWYZNP","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":"7b291ee5ed4ba5d3cd4624fff498e85c3ba4a6933cc6861b0194b2dce95853f3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-04-20T21:06:58Z","title_canon_sha256":"f1a442f894d63bf9e7c2a25aef2422e70a69517a3f87184ee0fa3e73bfada529"},"schema_version":"1.0","source":{"id":"1804.07825","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.07825","created_at":"2026-05-18T00:13:26Z"},{"alias_kind":"arxiv_version","alias_value":"1804.07825v1","created_at":"2026-05-18T00:13:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.07825","created_at":"2026-05-18T00:13:26Z"},{"alias_kind":"pith_short_12","alias_value":"5DG5AAJGYJ7L","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"5DG5AAJGYJ7LM7NT","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"5DG5AAJG","created_at":"2026-05-18T12:32:08Z"}],"graph_snapshots":[{"event_id":"sha256:c265c34a7bed6055f265c618378117c211d274886dcfd421549eed33c1b5927a","target":"graph","created_at":"2026-05-18T00:13:26Z","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 new interferometric images of cyclopropenylidene, c-C$_3$H$_2$, towards the young protocluster OMC-2 FIR\\,4. The observations were performed at 82 and 85 GHz with the NOrthern Extended Millimeter Array (NOEMA) as part of the project Seeds Of Life In Space (SOLIS). In addition, IRAM-30m data observations were used to investigate the physical structure of OMC-2 FIR\\,4. We find that the c-C$_3$H$_2$ gas emits from the same region where previous SOLIS observations showed bright HC$_5$N emission. From a non-LTE analysis of the IRAM-30m data, the c-C$_3$H$_2$ gas has an average temperature","authors_text":"A. Jaber Al-Edhari, A. L\\'opez-Sepulcre, C. Ceccarelli, C. Codella, C. Favre, C. Kahane, E. Bianchi, E. Caux, F. Alves, F. Dulieu, F. Fontani, I. R. Sims, J. E. Pineda, M. Kama, N. Balucani, P. Caselli, P. Theul\\'e, R. Neri, S. Manigand","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-04-20T21:06:58Z","title":"SOLIS IV. Hydrocarbons in the OMC-2 FIR 4 region, a probe of energetic particle irradiation of the region"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.07825","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:cc6f41f880a10acd24ebfd8b324aa9570188918eea5a5914546c09c2eed4575e","target":"record","created_at":"2026-05-18T00:13:26Z","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":"7b291ee5ed4ba5d3cd4624fff498e85c3ba4a6933cc6861b0194b2dce95853f3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-04-20T21:06:58Z","title_canon_sha256":"f1a442f894d63bf9e7c2a25aef2422e70a69517a3f87184ee0fa3e73bfada529"},"schema_version":"1.0","source":{"id":"1804.07825","kind":"arxiv","version":1}},"canonical_sha256":"e8cdd00126c27eb67db36df323db196bcbbdf68c12681419c7abeb0f30245c89","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e8cdd00126c27eb67db36df323db196bcbbdf68c12681419c7abeb0f30245c89","first_computed_at":"2026-05-18T00:13:26.097565Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:13:26.097565Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GGrgEzhfOY4wk44PFzCYjntVRpyawZV6dWQlxZaC0NGliZJbEXQNwCyzCt22uoHCxWt+bPUwloJGLD1EIlviAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:13:26.098167Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.07825","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cc6f41f880a10acd24ebfd8b324aa9570188918eea5a5914546c09c2eed4575e","sha256:c265c34a7bed6055f265c618378117c211d274886dcfd421549eed33c1b5927a"],"state_sha256":"2ea3990341dc6fa812c3a2fa0ce0310ba5a356b8648368e3e208d3b20a1cd043"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TBSltb7Vjv9R8sAn7L244LJf5+3+gEmE9R7WKHqbq+Tx2He+3L+pygCKKfCRzuDm3UhqMGkDbC3maJdX5/A5Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T23:10:54.819595Z","bundle_sha256":"22a77f6eb39b1e7e8c6457fbbe8647b410e9595d7c6816bd79a8a72bc22bd9a8"}}