{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:7CSVGSFUV4JFJVZFI5UXYNXGVJ","short_pith_number":"pith:7CSVGSFU","canonical_record":{"source":{"id":"1708.04663","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-08-15T20:04:33Z","cross_cats_sorted":[],"title_canon_sha256":"c75781ef21a21599873398e35653623dfff016b625469042c573c7021237bc7f","abstract_canon_sha256":"acb93f83cc5f922d8f69ecb9ee66574e6e10b98fab6c255cc36a9364c2b25d9d"},"schema_version":"1.0"},"canonical_sha256":"f8a55348b4af1254d72547697c36e6aa41e46e4c9f6ea0ef5d7e21f4683fd0ca","source":{"kind":"arxiv","id":"1708.04663","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.04663","created_at":"2026-05-18T00:35:30Z"},{"alias_kind":"arxiv_version","alias_value":"1708.04663v1","created_at":"2026-05-18T00:35:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.04663","created_at":"2026-05-18T00:35:30Z"},{"alias_kind":"pith_short_12","alias_value":"7CSVGSFUV4JF","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_16","alias_value":"7CSVGSFUV4JFJVZF","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_8","alias_value":"7CSVGSFU","created_at":"2026-05-18T12:31:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:7CSVGSFUV4JFJVZFI5UXYNXGVJ","target":"record","payload":{"canonical_record":{"source":{"id":"1708.04663","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-08-15T20:04:33Z","cross_cats_sorted":[],"title_canon_sha256":"c75781ef21a21599873398e35653623dfff016b625469042c573c7021237bc7f","abstract_canon_sha256":"acb93f83cc5f922d8f69ecb9ee66574e6e10b98fab6c255cc36a9364c2b25d9d"},"schema_version":"1.0"},"canonical_sha256":"f8a55348b4af1254d72547697c36e6aa41e46e4c9f6ea0ef5d7e21f4683fd0ca","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:35:30.580163Z","signature_b64":"t1qHQqoawBnHB1HAAwuI+OeI79/fKY7E11itgZHEsGPFNBfxGkCKnX2fVZZlwf47kQ3r8H2SxEmZ/R7qUIWpAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f8a55348b4af1254d72547697c36e6aa41e46e4c9f6ea0ef5d7e21f4683fd0ca","last_reissued_at":"2026-05-18T00:35:30.579733Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:35:30.579733Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1708.04663","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":"2026-05-18T00:35:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G3qGFjk28om3FvlYKqDqMnwUYuk1MhC6JTFOf+EtG7ayGmkp1sqAjBwMQTY0cVRCdH6jCkjgYA4Ksra8rD9NBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:07:58.179735Z"},"content_sha256":"e1246c771eddc510f59e36d08e474f97c03f7377b6ccc473b99112aec49549d5","schema_version":"1.0","event_id":"sha256:e1246c771eddc510f59e36d08e474f97c03f7377b6ccc473b99112aec49549d5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:7CSVGSFUV4JFJVZFI5UXYNXGVJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Seeds of Life in Space (SOLIS) III. Formamide in protostellar shocks: evidence for gas-phase formation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. Chac\\'on-Tanarro, A. Coutens, A.I. Vasyunin, A. Jaber Al-Edhari, A. L\\'opez-Sepulcre, A. Pon, A. Punanova, A. Rimola, B. Lefloch, C. Ceccarelli, C. Codella, C. Favre, C. Kahane, C. Puzzarini, C. Vastel, D. Quenard, D. Skouteris, E. Bianchi, E. Caux, F. Alves, F. Dulieu, F. Fontani, F. Vazart, I. Jim\\'enez-Serra, I. Sims, J. Holdship, J. Laas, J. Ospina, J. Pineda, L. Bizzocchi, L. Podio, L. Testi, L. Wiesenfeld, N. Balucani, N. Sakai, P. Caselli, P. Hily-Blant, P. Theul\\'e, P. Ugliengo, R. Bachiller, R. Choudhury, R. Neri, S. Bottinelli, S. Feng, S. Spezzano, S. Viti, S. Yamamoto, V. Barone{\\i}nst, V. Taquet, Y. Oya","submitted_at":"2017-08-15T20:04:33Z","abstract_excerpt":"Context: Modern versions of the Miller-Urey experiment claim that formamide (NH$_2$CHO) could be the starting point for the formation of metabolic and genetic macromolecules. Intriguingly, formamide is indeed observed in regions forming Solar-type stars as well as in external galaxies. Aims: How NH$_2$CHO is formed has been a puzzle for decades: our goal is to contribute to the hotly debated question of whether formamide is mostly formed via gas-phase or grain surface chemistry. Methods: We used the NOEMA interferometer to image NH$_2$CHO towards the L1157-B1 blue-shifted shock, a well known i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.04663","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":"2026-05-18T00:35:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MUz5zhItQrTDayDJMVm94M3HKao4UhcRCg6e2R0EVhKO7P8P454JVIB7XRF+itPv5hwD6M/+iBmtdQJ/d/CKBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:07:58.180463Z"},"content_sha256":"904297ce0b54d7ca22c1eebd06691a8e228566df13e1c5e8146af30fb0613176","schema_version":"1.0","event_id":"sha256:904297ce0b54d7ca22c1eebd06691a8e228566df13e1c5e8146af30fb0613176"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7CSVGSFUV4JFJVZFI5UXYNXGVJ/bundle.json","state_url":"https://pith.science/pith/7CSVGSFUV4JFJVZFI5UXYNXGVJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7CSVGSFUV4JFJVZFI5UXYNXGVJ/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":"2026-05-28T19:07:58Z","links":{"resolver":"https://pith.science/pith/7CSVGSFUV4JFJVZFI5UXYNXGVJ","bundle":"https://pith.science/pith/7CSVGSFUV4JFJVZFI5UXYNXGVJ/bundle.json","state":"https://pith.science/pith/7CSVGSFUV4JFJVZFI5UXYNXGVJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7CSVGSFUV4JFJVZFI5UXYNXGVJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:7CSVGSFUV4JFJVZFI5UXYNXGVJ","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":"acb93f83cc5f922d8f69ecb9ee66574e6e10b98fab6c255cc36a9364c2b25d9d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-08-15T20:04:33Z","title_canon_sha256":"c75781ef21a21599873398e35653623dfff016b625469042c573c7021237bc7f"},"schema_version":"1.0","source":{"id":"1708.04663","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.04663","created_at":"2026-05-18T00:35:30Z"},{"alias_kind":"arxiv_version","alias_value":"1708.04663v1","created_at":"2026-05-18T00:35:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.04663","created_at":"2026-05-18T00:35:30Z"},{"alias_kind":"pith_short_12","alias_value":"7CSVGSFUV4JF","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_16","alias_value":"7CSVGSFUV4JFJVZF","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_8","alias_value":"7CSVGSFU","created_at":"2026-05-18T12:31:03Z"}],"graph_snapshots":[{"event_id":"sha256:904297ce0b54d7ca22c1eebd06691a8e228566df13e1c5e8146af30fb0613176","target":"graph","created_at":"2026-05-18T00:35:30Z","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: Modern versions of the Miller-Urey experiment claim that formamide (NH$_2$CHO) could be the starting point for the formation of metabolic and genetic macromolecules. Intriguingly, formamide is indeed observed in regions forming Solar-type stars as well as in external galaxies. Aims: How NH$_2$CHO is formed has been a puzzle for decades: our goal is to contribute to the hotly debated question of whether formamide is mostly formed via gas-phase or grain surface chemistry. Methods: We used the NOEMA interferometer to image NH$_2$CHO towards the L1157-B1 blue-shifted shock, a well known i","authors_text":"A. Chac\\'on-Tanarro, A. Coutens, A.I. Vasyunin, A. Jaber Al-Edhari, A. L\\'opez-Sepulcre, A. Pon, A. Punanova, A. Rimola, B. Lefloch, C. Ceccarelli, C. Codella, C. Favre, C. Kahane, C. Puzzarini, C. Vastel, D. Quenard, D. Skouteris, E. Bianchi, E. Caux, F. Alves, F. Dulieu, F. Fontani, F. Vazart, I. Jim\\'enez-Serra, I. Sims, J. Holdship, J. Laas, J. Ospina, J. Pineda, L. Bizzocchi, L. Podio, L. Testi, L. Wiesenfeld, N. Balucani, N. Sakai, P. Caselli, P. Hily-Blant, P. Theul\\'e, P. Ugliengo, R. Bachiller, R. Choudhury, R. Neri, S. Bottinelli, S. Feng, S. Spezzano, S. Viti, S. Yamamoto, V. Barone{\\i}nst, V. Taquet, Y. Oya","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-08-15T20:04:33Z","title":"Seeds of Life in Space (SOLIS) III. Formamide in protostellar shocks: evidence for gas-phase formation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.04663","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:e1246c771eddc510f59e36d08e474f97c03f7377b6ccc473b99112aec49549d5","target":"record","created_at":"2026-05-18T00:35:30Z","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":"acb93f83cc5f922d8f69ecb9ee66574e6e10b98fab6c255cc36a9364c2b25d9d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-08-15T20:04:33Z","title_canon_sha256":"c75781ef21a21599873398e35653623dfff016b625469042c573c7021237bc7f"},"schema_version":"1.0","source":{"id":"1708.04663","kind":"arxiv","version":1}},"canonical_sha256":"f8a55348b4af1254d72547697c36e6aa41e46e4c9f6ea0ef5d7e21f4683fd0ca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f8a55348b4af1254d72547697c36e6aa41e46e4c9f6ea0ef5d7e21f4683fd0ca","first_computed_at":"2026-05-18T00:35:30.579733Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:35:30.579733Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"t1qHQqoawBnHB1HAAwuI+OeI79/fKY7E11itgZHEsGPFNBfxGkCKnX2fVZZlwf47kQ3r8H2SxEmZ/R7qUIWpAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:35:30.580163Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.04663","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e1246c771eddc510f59e36d08e474f97c03f7377b6ccc473b99112aec49549d5","sha256:904297ce0b54d7ca22c1eebd06691a8e228566df13e1c5e8146af30fb0613176"],"state_sha256":"49d796b8ef2c82febd5765f3f60d05b509b5ddb91893bbfb85a6736faaaf423e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PRpeq77AOHrh1OX/phqJYTiEPsx+gy1HR6qmcxLkLJt25cwUkRssYvDcy2xklNGklFF8Nih1Kx4CGDkqbxe0Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T19:07:58.183568Z","bundle_sha256":"d5bbdc436a9fdf2218bc45c14687d7660f003c54410b65c2cfc902d4b31abe04"}}