{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:ORXNUOZZ7LMGVQ5SVSTELDTLBM","short_pith_number":"pith:ORXNUOZZ","canonical_record":{"source":{"id":"1901.08676","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-01-24T22:52:16Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"266286d595ec54122360a6b7e1b2005c2b60e5450fa4559ee619fc43b64db0da","abstract_canon_sha256":"0c9f8ff72913cdd3846a9ab167b2060c69aea7ca32613d7b93118fa5e777a671"},"schema_version":"1.0"},"canonical_sha256":"746eda3b39fad86ac3b2aca6458e6b0b1fd97f5f24cd8553de68fda29d8cb3c1","source":{"kind":"arxiv","id":"1901.08676","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.08676","created_at":"2026-05-17T23:55:33Z"},{"alias_kind":"arxiv_version","alias_value":"1901.08676v1","created_at":"2026-05-17T23:55:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.08676","created_at":"2026-05-17T23:55:33Z"},{"alias_kind":"pith_short_12","alias_value":"ORXNUOZZ7LMG","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_16","alias_value":"ORXNUOZZ7LMGVQ5S","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_8","alias_value":"ORXNUOZZ","created_at":"2026-05-18T12:33:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:ORXNUOZZ7LMGVQ5SVSTELDTLBM","target":"record","payload":{"canonical_record":{"source":{"id":"1901.08676","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-01-24T22:52:16Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"266286d595ec54122360a6b7e1b2005c2b60e5450fa4559ee619fc43b64db0da","abstract_canon_sha256":"0c9f8ff72913cdd3846a9ab167b2060c69aea7ca32613d7b93118fa5e777a671"},"schema_version":"1.0"},"canonical_sha256":"746eda3b39fad86ac3b2aca6458e6b0b1fd97f5f24cd8553de68fda29d8cb3c1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:55:33.440103Z","signature_b64":"EMWOA1AE5TZDwgdcssJ+LGVmJmDQ+8uczX3Swi7ffi7fywkL9UpWM2O8RhWz33dxp3q/uCHhkoU8YutlHKbqAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"746eda3b39fad86ac3b2aca6458e6b0b1fd97f5f24cd8553de68fda29d8cb3c1","last_reissued_at":"2026-05-17T23:55:33.439505Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:55:33.439505Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1901.08676","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":"2026-05-17T23:55:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PkYe3KCbxJl4EmHnbxFwqcG8K0B/XA0hGved9zx2dh8bEKW2c2MOSb5Id2Gz/ITJHojBeYJ5LuhUFWtCa/OpCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T17:53:53.496309Z"},"content_sha256":"1ed9046999b210fd329d50a50edc090f18156edd829094ee4cb7cb33f23b46cb","schema_version":"1.0","event_id":"sha256:1ed9046999b210fd329d50a50edc090f18156edd829094ee4cb7cb33f23b46cb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:ORXNUOZZ7LMGVQ5SVSTELDTLBM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"ALMA Autocorrelation Spectroscopy of Comets: The HCN/H^13CN ratio in C/2012 S1 (ISON)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.IM","authors_text":"A. J. Remijan, D. Bockel\\'ee-Morvan, D. C. Lis, G. Villanueva, J. Crovisier, L. Paganini, M. A. Cordiner, M. de Val-Borro, M. J. Mumma, M. Y. Palmer, N. Biver, S. B. Charnley, S. N. Milam, Y.-J. Kuan","submitted_at":"2019-01-24T22:52:16Z","abstract_excerpt":"The Atacama Large Millimeter/submillimeter Array (ALMA) is a powerful tool for high-resolution mapping of comets, but the main interferometer (comprised of 50x12-m antennas) is insensitive to the largest coma scales due to a lack of very short baselines. In this work, we present a new technique employing ALMA autocorrelation data (obtained simultaneously with the interferometric observations), effectively treating the entire 12-m array as a collection of single-dish telescopes. Using combined autocorrelation spectra from 28 active antennas, we recovered extended HCN coma emission from comet C/"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.08676","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":"2026-05-17T23:55:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7G6VmFb9G1Nv0c8Aiu4CwxzHnFeLLHz9r7SRu8g3JPfgPcVko3lSG2oX2F8lg9WU/9StJcxOeYAwzwp/KumeAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T17:53:53.496683Z"},"content_sha256":"c4ab9b37b3739bc03ec5769f053577afd36f393fc5b4768fd3aad1e38906c0de","schema_version":"1.0","event_id":"sha256:c4ab9b37b3739bc03ec5769f053577afd36f393fc5b4768fd3aad1e38906c0de"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ORXNUOZZ7LMGVQ5SVSTELDTLBM/bundle.json","state_url":"https://pith.science/pith/ORXNUOZZ7LMGVQ5SVSTELDTLBM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ORXNUOZZ7LMGVQ5SVSTELDTLBM/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":"2026-05-29T17:53:53Z","links":{"resolver":"https://pith.science/pith/ORXNUOZZ7LMGVQ5SVSTELDTLBM","bundle":"https://pith.science/pith/ORXNUOZZ7LMGVQ5SVSTELDTLBM/bundle.json","state":"https://pith.science/pith/ORXNUOZZ7LMGVQ5SVSTELDTLBM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ORXNUOZZ7LMGVQ5SVSTELDTLBM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:ORXNUOZZ7LMGVQ5SVSTELDTLBM","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":"0c9f8ff72913cdd3846a9ab167b2060c69aea7ca32613d7b93118fa5e777a671","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-01-24T22:52:16Z","title_canon_sha256":"266286d595ec54122360a6b7e1b2005c2b60e5450fa4559ee619fc43b64db0da"},"schema_version":"1.0","source":{"id":"1901.08676","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.08676","created_at":"2026-05-17T23:55:33Z"},{"alias_kind":"arxiv_version","alias_value":"1901.08676v1","created_at":"2026-05-17T23:55:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.08676","created_at":"2026-05-17T23:55:33Z"},{"alias_kind":"pith_short_12","alias_value":"ORXNUOZZ7LMG","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_16","alias_value":"ORXNUOZZ7LMGVQ5S","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_8","alias_value":"ORXNUOZZ","created_at":"2026-05-18T12:33:24Z"}],"graph_snapshots":[{"event_id":"sha256:c4ab9b37b3739bc03ec5769f053577afd36f393fc5b4768fd3aad1e38906c0de","target":"graph","created_at":"2026-05-17T23:55:33Z","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":"The Atacama Large Millimeter/submillimeter Array (ALMA) is a powerful tool for high-resolution mapping of comets, but the main interferometer (comprised of 50x12-m antennas) is insensitive to the largest coma scales due to a lack of very short baselines. In this work, we present a new technique employing ALMA autocorrelation data (obtained simultaneously with the interferometric observations), effectively treating the entire 12-m array as a collection of single-dish telescopes. Using combined autocorrelation spectra from 28 active antennas, we recovered extended HCN coma emission from comet C/","authors_text":"A. J. Remijan, D. Bockel\\'ee-Morvan, D. C. Lis, G. Villanueva, J. Crovisier, L. Paganini, M. A. Cordiner, M. de Val-Borro, M. J. Mumma, M. Y. Palmer, N. Biver, S. B. Charnley, S. N. Milam, Y.-J. Kuan","cross_cats":["astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-01-24T22:52:16Z","title":"ALMA Autocorrelation Spectroscopy of Comets: The HCN/H^13CN ratio in C/2012 S1 (ISON)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.08676","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":"sha256:1ed9046999b210fd329d50a50edc090f18156edd829094ee4cb7cb33f23b46cb","target":"record","created_at":"2026-05-17T23:55:33Z","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":"0c9f8ff72913cdd3846a9ab167b2060c69aea7ca32613d7b93118fa5e777a671","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-01-24T22:52:16Z","title_canon_sha256":"266286d595ec54122360a6b7e1b2005c2b60e5450fa4559ee619fc43b64db0da"},"schema_version":"1.0","source":{"id":"1901.08676","kind":"arxiv","version":1}},"canonical_sha256":"746eda3b39fad86ac3b2aca6458e6b0b1fd97f5f24cd8553de68fda29d8cb3c1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"746eda3b39fad86ac3b2aca6458e6b0b1fd97f5f24cd8553de68fda29d8cb3c1","first_computed_at":"2026-05-17T23:55:33.439505Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:55:33.439505Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"EMWOA1AE5TZDwgdcssJ+LGVmJmDQ+8uczX3Swi7ffi7fywkL9UpWM2O8RhWz33dxp3q/uCHhkoU8YutlHKbqAA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:55:33.440103Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.08676","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1ed9046999b210fd329d50a50edc090f18156edd829094ee4cb7cb33f23b46cb","sha256:c4ab9b37b3739bc03ec5769f053577afd36f393fc5b4768fd3aad1e38906c0de"],"state_sha256":"6fcd1868f2089b9973e2565fc5afaf1c8766145e175cfaf21056a71806c94e9c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f74JbWl3psHzQApvLU5u9/K8jGQ+Fh3yjmAbuKgyaTrRnHI9Xonrvovz3H/uY87N3BdYnNbdos2jrOsFhTe5DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T17:53:53.498712Z","bundle_sha256":"d42935c2235f89d3c839726a1a3d6f5866d506f2074d56b1401a529c1300ab80"}}