{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:XCXFIAXDPWEFRXAYTF4ONAV2HT","short_pith_number":"pith:XCXFIAXD","canonical_record":{"source":{"id":"1402.2329","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-02-10T23:27:12Z","cross_cats_sorted":[],"title_canon_sha256":"e25a584a91aa644ded99b90fcb2a98ce93d0d69b43c521d53289edf2342710eb","abstract_canon_sha256":"d50d7573ffbd89f2a17950ca09c10a7d819a31a8bbcff17b24e50c438d07e81a"},"schema_version":"1.0"},"canonical_sha256":"b8ae5402e37d8858dc189978e682ba3ce8bc956c2093188434cbb6c04104a5ed","source":{"kind":"arxiv","id":"1402.2329","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.2329","created_at":"2026-05-18T01:44:45Z"},{"alias_kind":"arxiv_version","alias_value":"1402.2329v1","created_at":"2026-05-18T01:44:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.2329","created_at":"2026-05-18T01:44:45Z"},{"alias_kind":"pith_short_12","alias_value":"XCXFIAXDPWEF","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"XCXFIAXDPWEFRXAY","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"XCXFIAXD","created_at":"2026-05-18T12:28:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:XCXFIAXDPWEFRXAYTF4ONAV2HT","target":"record","payload":{"canonical_record":{"source":{"id":"1402.2329","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-02-10T23:27:12Z","cross_cats_sorted":[],"title_canon_sha256":"e25a584a91aa644ded99b90fcb2a98ce93d0d69b43c521d53289edf2342710eb","abstract_canon_sha256":"d50d7573ffbd89f2a17950ca09c10a7d819a31a8bbcff17b24e50c438d07e81a"},"schema_version":"1.0"},"canonical_sha256":"b8ae5402e37d8858dc189978e682ba3ce8bc956c2093188434cbb6c04104a5ed","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:44:45.604502Z","signature_b64":"fpkDixkAI6lgItP+jb5ADk4egFOxxsZtBG4tmq+KEdpX+TGPFqROe4hTvF7axBw2lkTxZrtpc9HuqRdDXagiBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b8ae5402e37d8858dc189978e682ba3ce8bc956c2093188434cbb6c04104a5ed","last_reissued_at":"2026-05-18T01:44:45.603782Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:44:45.603782Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1402.2329","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":"2026-05-18T01:44:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QGz2b/ocfwdUl9ITe0rB4urK8SADT1KnZDe8QLDhE9jYzUXN32mGtAJkG5VhDvLipI1muC6QhOxRjylaH7+iBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T04:09:23.853206Z"},"content_sha256":"2b075b3e1512dce4c1c33be055e3db91b9b7ff08cb7976ed2fe011f3c98ef22b","schema_version":"1.0","event_id":"sha256:2b075b3e1512dce4c1c33be055e3db91b9b7ff08cb7976ed2fe011f3c98ef22b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:XCXFIAXDPWEFRXAYTF4ONAV2HT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Molecular ions in the protostellar shock L1157-B1","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"B. Lefloch, C. Ceccarelli, C. Codella, L. Podio, R. Bachiller","submitted_at":"2014-02-10T23:27:12Z","abstract_excerpt":"We perform a complete census of molecular ions with an abundance larger than 1e-10 in the protostellar shock L1157-B1 by means of an unbiased high-sensitivity survey obtained with the IRAM-30m and Herschel/HIFI. By means of an LVG radiative transfer code the gas physical conditions and fractional abundances of molecular ions are derived. The latter are compared with estimates of steady-state abundances in the cloud and their evolution in the shock calculated with the chemical model Astrochem. We detect emission from HCO+, H13CO+, N2H+, HCS+, and, for the first time in a shock, from HOCO+, and "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.2329","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":"2026-05-18T01:44:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p2P3G5prlEHLXD4Py3ydoKWrItJPeH80DDO9y7Xsd8fwnKN1oA00H0X4sBe4eZ6qzfqgSf4xjbH3hAzJMmMeBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T04:09:23.853874Z"},"content_sha256":"4e5c80ab6c02979697612e202d27674f76bcb77dfa2da857d1ebfc2370442da9","schema_version":"1.0","event_id":"sha256:4e5c80ab6c02979697612e202d27674f76bcb77dfa2da857d1ebfc2370442da9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XCXFIAXDPWEFRXAYTF4ONAV2HT/bundle.json","state_url":"https://pith.science/pith/XCXFIAXDPWEFRXAYTF4ONAV2HT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XCXFIAXDPWEFRXAYTF4ONAV2HT/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":"2026-06-06T04:09:23Z","links":{"resolver":"https://pith.science/pith/XCXFIAXDPWEFRXAYTF4ONAV2HT","bundle":"https://pith.science/pith/XCXFIAXDPWEFRXAYTF4ONAV2HT/bundle.json","state":"https://pith.science/pith/XCXFIAXDPWEFRXAYTF4ONAV2HT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XCXFIAXDPWEFRXAYTF4ONAV2HT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:XCXFIAXDPWEFRXAYTF4ONAV2HT","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":"d50d7573ffbd89f2a17950ca09c10a7d819a31a8bbcff17b24e50c438d07e81a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-02-10T23:27:12Z","title_canon_sha256":"e25a584a91aa644ded99b90fcb2a98ce93d0d69b43c521d53289edf2342710eb"},"schema_version":"1.0","source":{"id":"1402.2329","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.2329","created_at":"2026-05-18T01:44:45Z"},{"alias_kind":"arxiv_version","alias_value":"1402.2329v1","created_at":"2026-05-18T01:44:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.2329","created_at":"2026-05-18T01:44:45Z"},{"alias_kind":"pith_short_12","alias_value":"XCXFIAXDPWEF","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"XCXFIAXDPWEFRXAY","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"XCXFIAXD","created_at":"2026-05-18T12:28:57Z"}],"graph_snapshots":[{"event_id":"sha256:4e5c80ab6c02979697612e202d27674f76bcb77dfa2da857d1ebfc2370442da9","target":"graph","created_at":"2026-05-18T01:44:45Z","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 perform a complete census of molecular ions with an abundance larger than 1e-10 in the protostellar shock L1157-B1 by means of an unbiased high-sensitivity survey obtained with the IRAM-30m and Herschel/HIFI. By means of an LVG radiative transfer code the gas physical conditions and fractional abundances of molecular ions are derived. The latter are compared with estimates of steady-state abundances in the cloud and their evolution in the shock calculated with the chemical model Astrochem. We detect emission from HCO+, H13CO+, N2H+, HCS+, and, for the first time in a shock, from HOCO+, and ","authors_text":"B. Lefloch, C. Ceccarelli, C. Codella, L. Podio, R. Bachiller","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-02-10T23:27:12Z","title":"Molecular ions in the protostellar shock L1157-B1"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.2329","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":"sha256:2b075b3e1512dce4c1c33be055e3db91b9b7ff08cb7976ed2fe011f3c98ef22b","target":"record","created_at":"2026-05-18T01:44:45Z","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":"d50d7573ffbd89f2a17950ca09c10a7d819a31a8bbcff17b24e50c438d07e81a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-02-10T23:27:12Z","title_canon_sha256":"e25a584a91aa644ded99b90fcb2a98ce93d0d69b43c521d53289edf2342710eb"},"schema_version":"1.0","source":{"id":"1402.2329","kind":"arxiv","version":1}},"canonical_sha256":"b8ae5402e37d8858dc189978e682ba3ce8bc956c2093188434cbb6c04104a5ed","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b8ae5402e37d8858dc189978e682ba3ce8bc956c2093188434cbb6c04104a5ed","first_computed_at":"2026-05-18T01:44:45.603782Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:44:45.603782Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fpkDixkAI6lgItP+jb5ADk4egFOxxsZtBG4tmq+KEdpX+TGPFqROe4hTvF7axBw2lkTxZrtpc9HuqRdDXagiBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:44:45.604502Z","signed_message":"canonical_sha256_bytes"},"source_id":"1402.2329","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2b075b3e1512dce4c1c33be055e3db91b9b7ff08cb7976ed2fe011f3c98ef22b","sha256:4e5c80ab6c02979697612e202d27674f76bcb77dfa2da857d1ebfc2370442da9"],"state_sha256":"057148d61fb720a019d10e6833db589c958474c3030c12ee9c8a708fcc70df97"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uoTapk7NH30UAMu0UdpWj4kSFLkb2tfOuVsgRwub7Ajdtqb6RdT4AE05qQ21w3gNzaiNJn6FcEJVHaX+ii9pAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T04:09:23.857389Z","bundle_sha256":"f8fe60659b670f87cdb1852e01ddfca52a04738d7a0d655138ad5260783ea6f0"}}