{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:7YYNFU4EJ5XJVGH5RWJCSQPEVH","short_pith_number":"pith:7YYNFU4E","canonical_record":{"source":{"id":"1409.7394","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-09-25T20:00:11Z","cross_cats_sorted":[],"title_canon_sha256":"dde568fcdab2f864dba799719fd6e8fb7e0abddc0a68c9ad57fc39c9bb87e72e","abstract_canon_sha256":"396ebcae19adf5a3af6acc3ec90a394abb2cd93eaafc11e043eea037216676db"},"schema_version":"1.0"},"canonical_sha256":"fe30d2d3844f6e9a98fd8d922941e4a9caf58626816247f9fc62908842bb68f7","source":{"kind":"arxiv","id":"1409.7394","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.7394","created_at":"2026-05-18T01:41:56Z"},{"alias_kind":"arxiv_version","alias_value":"1409.7394v1","created_at":"2026-05-18T01:41:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.7394","created_at":"2026-05-18T01:41:56Z"},{"alias_kind":"pith_short_12","alias_value":"7YYNFU4EJ5XJ","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"7YYNFU4EJ5XJVGH5","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"7YYNFU4E","created_at":"2026-05-18T12:28:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:7YYNFU4EJ5XJVGH5RWJCSQPEVH","target":"record","payload":{"canonical_record":{"source":{"id":"1409.7394","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-09-25T20:00:11Z","cross_cats_sorted":[],"title_canon_sha256":"dde568fcdab2f864dba799719fd6e8fb7e0abddc0a68c9ad57fc39c9bb87e72e","abstract_canon_sha256":"396ebcae19adf5a3af6acc3ec90a394abb2cd93eaafc11e043eea037216676db"},"schema_version":"1.0"},"canonical_sha256":"fe30d2d3844f6e9a98fd8d922941e4a9caf58626816247f9fc62908842bb68f7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:56.758346Z","signature_b64":"iC2ntDNJmHDb3xHbyC1d2mmQdP/EKExPjU/Op71c5d2rgWWd2HkOwbyxAdo0BSfX5h+5whAeNs5ppPEl+zGFCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fe30d2d3844f6e9a98fd8d922941e4a9caf58626816247f9fc62908842bb68f7","last_reissued_at":"2026-05-18T01:41:56.757727Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:56.757727Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1409.7394","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":"2026-05-18T01:41:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2xsf1zor4yGLCtgZWfycooIZixM9b/w7n7YKXX4pjfBSOopf+yOZR54qBGyA9YnFgnGTbXIX+rG09OFoprUcAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T10:49:58.817419Z"},"content_sha256":"15f117822d8958b598605ccff12caad6b35bb5bcb3c9f46815f98700c8942246","schema_version":"1.0","event_id":"sha256:15f117822d8958b598605ccff12caad6b35bb5bcb3c9f46815f98700c8942246"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:7YYNFU4EJ5XJVGH5RWJCSQPEVH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A resolved, au-scale gas disk around the B[e] star HD 50138","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Domiciano De Souza, D. K. Lynch, D. Mourard, F. Tramper, I. Tallon-Bosc, J. B. Le Bouquin, J. Kluska, K. M. Maaskant, K. Perraut, L. E. Ellerbroek, L. Kaper, M. Benisty, M. Borges Fernandes, M. L. Sitko, R. W. Russell, S. Kraus, T. ten Brummelaar","submitted_at":"2014-09-25T20:00:11Z","abstract_excerpt":"HD 50138 is a B[e] star surrounded by a large amount of circumstellar gas and dust. Its spectrum shows characteristics which may indicate either a pre- or a post-main-sequence system. Mapping the kinematics of the gas in the inner few au of the system contributes to a better understanding of its physical nature. We present the first high spatial and spectral resolution interferometric observations of the Br-gamma line of HD~50138, obtained with VLTI/AMBER. The line emission originates from a region more compact (up to 3 au) than the continuum-emitting region. Blue- and red-shifted emission ori"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.7394","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":"2026-05-18T01:41:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VkNYxGtG1JtPZDXYCeztLExgPHlG2RFeRk48RBedNJrG0j0xTD0Qjvfo0laY6yHkmsUy7p/BmstzfVKJlzOaCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T10:49:58.817772Z"},"content_sha256":"d7f515f7ad09ee10f14567210c4143276b0defe7213d38f080fe830aad93adab","schema_version":"1.0","event_id":"sha256:d7f515f7ad09ee10f14567210c4143276b0defe7213d38f080fe830aad93adab"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7YYNFU4EJ5XJVGH5RWJCSQPEVH/bundle.json","state_url":"https://pith.science/pith/7YYNFU4EJ5XJVGH5RWJCSQPEVH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7YYNFU4EJ5XJVGH5RWJCSQPEVH/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":"2026-05-20T10:49:58Z","links":{"resolver":"https://pith.science/pith/7YYNFU4EJ5XJVGH5RWJCSQPEVH","bundle":"https://pith.science/pith/7YYNFU4EJ5XJVGH5RWJCSQPEVH/bundle.json","state":"https://pith.science/pith/7YYNFU4EJ5XJVGH5RWJCSQPEVH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7YYNFU4EJ5XJVGH5RWJCSQPEVH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:7YYNFU4EJ5XJVGH5RWJCSQPEVH","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":"396ebcae19adf5a3af6acc3ec90a394abb2cd93eaafc11e043eea037216676db","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-09-25T20:00:11Z","title_canon_sha256":"dde568fcdab2f864dba799719fd6e8fb7e0abddc0a68c9ad57fc39c9bb87e72e"},"schema_version":"1.0","source":{"id":"1409.7394","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.7394","created_at":"2026-05-18T01:41:56Z"},{"alias_kind":"arxiv_version","alias_value":"1409.7394v1","created_at":"2026-05-18T01:41:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.7394","created_at":"2026-05-18T01:41:56Z"},{"alias_kind":"pith_short_12","alias_value":"7YYNFU4EJ5XJ","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"7YYNFU4EJ5XJVGH5","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"7YYNFU4E","created_at":"2026-05-18T12:28:19Z"}],"graph_snapshots":[{"event_id":"sha256:d7f515f7ad09ee10f14567210c4143276b0defe7213d38f080fe830aad93adab","target":"graph","created_at":"2026-05-18T01:41:56Z","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":"HD 50138 is a B[e] star surrounded by a large amount of circumstellar gas and dust. Its spectrum shows characteristics which may indicate either a pre- or a post-main-sequence system. Mapping the kinematics of the gas in the inner few au of the system contributes to a better understanding of its physical nature. We present the first high spatial and spectral resolution interferometric observations of the Br-gamma line of HD~50138, obtained with VLTI/AMBER. The line emission originates from a region more compact (up to 3 au) than the continuum-emitting region. Blue- and red-shifted emission ori","authors_text":"A. Domiciano De Souza, D. K. Lynch, D. Mourard, F. Tramper, I. Tallon-Bosc, J. B. Le Bouquin, J. Kluska, K. M. Maaskant, K. Perraut, L. E. Ellerbroek, L. Kaper, M. Benisty, M. Borges Fernandes, M. L. Sitko, R. W. Russell, S. Kraus, T. ten Brummelaar","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-09-25T20:00:11Z","title":"A resolved, au-scale gas disk around the B[e] star HD 50138"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.7394","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":"sha256:15f117822d8958b598605ccff12caad6b35bb5bcb3c9f46815f98700c8942246","target":"record","created_at":"2026-05-18T01:41:56Z","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":"396ebcae19adf5a3af6acc3ec90a394abb2cd93eaafc11e043eea037216676db","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-09-25T20:00:11Z","title_canon_sha256":"dde568fcdab2f864dba799719fd6e8fb7e0abddc0a68c9ad57fc39c9bb87e72e"},"schema_version":"1.0","source":{"id":"1409.7394","kind":"arxiv","version":1}},"canonical_sha256":"fe30d2d3844f6e9a98fd8d922941e4a9caf58626816247f9fc62908842bb68f7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fe30d2d3844f6e9a98fd8d922941e4a9caf58626816247f9fc62908842bb68f7","first_computed_at":"2026-05-18T01:41:56.757727Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:56.757727Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iC2ntDNJmHDb3xHbyC1d2mmQdP/EKExPjU/Op71c5d2rgWWd2HkOwbyxAdo0BSfX5h+5whAeNs5ppPEl+zGFCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:56.758346Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.7394","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:15f117822d8958b598605ccff12caad6b35bb5bcb3c9f46815f98700c8942246","sha256:d7f515f7ad09ee10f14567210c4143276b0defe7213d38f080fe830aad93adab"],"state_sha256":"c43d4c71ded9d92069114401e2f5435e40b21202a87916cdbeb6069e5af5241a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T9y8XWkFJy1TudyRIn2I+RWWz+Icou2io3lpm3/90JZaG9aCOuy5L0G0Xjba0uNj0xvVuy8w3eiQTkNLMIE2Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T10:49:58.819676Z","bundle_sha256":"16ed38913b11e8cd8b0e8d6c48c1e5621af2eec3059bf494f3bffe753ccda90a"}}