{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2003:YXEH4ZLFUOD4BQGGXFEU46ALZN","short_pith_number":"pith:YXEH4ZLF","canonical_record":{"source":{"id":"astro-ph/0301413","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2003-01-21T17:43:07Z","cross_cats_sorted":[],"title_canon_sha256":"c4363cf41daff9a93797f84c0cafdf695b146f314b07127619a5c6eb7b507843","abstract_canon_sha256":"fdd1e99fd60c578e64ce42f99a1bfd0759dc4ab74492e548993aceb913efe45a"},"schema_version":"1.0"},"canonical_sha256":"c5c87e6565a387c0c0c6b9494e780bcb4256e72a0ad2093ce983fc4a1fa70694","source":{"kind":"arxiv","id":"astro-ph/0301413","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0301413","created_at":"2026-07-04T16:36:21Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0301413v1","created_at":"2026-07-04T16:36:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0301413","created_at":"2026-07-04T16:36:21Z"},{"alias_kind":"pith_short_12","alias_value":"YXEH4ZLFUOD4","created_at":"2026-07-04T16:36:21Z"},{"alias_kind":"pith_short_16","alias_value":"YXEH4ZLFUOD4BQGG","created_at":"2026-07-04T16:36:21Z"},{"alias_kind":"pith_short_8","alias_value":"YXEH4ZLF","created_at":"2026-07-04T16:36:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2003:YXEH4ZLFUOD4BQGGXFEU46ALZN","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0301413","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2003-01-21T17:43:07Z","cross_cats_sorted":[],"title_canon_sha256":"c4363cf41daff9a93797f84c0cafdf695b146f314b07127619a5c6eb7b507843","abstract_canon_sha256":"fdd1e99fd60c578e64ce42f99a1bfd0759dc4ab74492e548993aceb913efe45a"},"schema_version":"1.0"},"canonical_sha256":"c5c87e6565a387c0c0c6b9494e780bcb4256e72a0ad2093ce983fc4a1fa70694","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:36:21.470756Z","signature_b64":"afxg7COqyb/k/imRl9AzYjCk6BVN2aNJWo3y4mZ7DafDKX47XIvqaibIChVsUZdt4RYU0sI2V9qnLN0ikgVPDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c5c87e6565a387c0c0c6b9494e780bcb4256e72a0ad2093ce983fc4a1fa70694","last_reissued_at":"2026-07-04T16:36:21.470337Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:36:21.470337Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0301413","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":"2026-07-04T16:36:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cbQ3DXlbxwtWPyi7IR6cvG5YzFcGp7d4gMtiqy4E+HK6iJ2/Z56Vz6gl+EzMVErEIoQKdXEbt+5WDCsIiiqRCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T06:17:50.239078Z"},"content_sha256":"b1a1089aeacc936823706a2ad50c0a2f499b821a9cf44150b49cbaf2d4099294","schema_version":"1.0","event_id":"sha256:b1a1089aeacc936823706a2ad50c0a2f499b821a9cf44150b49cbaf2d4099294"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2003:YXEH4ZLFUOD4BQGGXFEU46ALZN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"VLBI imaging of the RS CVn binary star system HR 5110","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"D. E. Lebach, I. I. Shapiro, J.-F. Lestrade, M. F. Bietenholz, M. I. Ratner, N. Bartel, R. R. Ransom","submitted_at":"2003-01-21T17:43:07Z","abstract_excerpt":"We present VLBI images of the RS CVn binary star HR 5110 (=BH CVn; HD 118216), obtained from observations made at 8.4 GHz on 1994 May 29/30 in support of the NASA/Stanford Gravity Probe B project. Our images show an emission region with a core-halo morphology. The core was 0.39 +/- 0.09 mas (FWHM) in size, or 66% +/- 20% of the 0.6 +/- 0.1 mas diameter of the chromospherically active K subgiant star in the binary system. The halo was 1.95 +/- 0.22 mas (FWHM) in size, or 1.8 +/- 0.2 times the 1.1 +/- 0.1 mas separation of the centers of the K and F stars. The core increased significantly in bri"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0301413","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0301413/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T16:36:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KAFBV7l77emDH0ZhCpLPGfyH4Z8K6hy7u1x5Akw4eL1SgFJqo96UvpgG5ZuZhsA56kzY5tflUO/lvOR5rEOKAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T06:17:50.239619Z"},"content_sha256":"2e0e74140671b5a931aae66362de34a8514819ceb64cbb637373e813b2efce60","schema_version":"1.0","event_id":"sha256:2e0e74140671b5a931aae66362de34a8514819ceb64cbb637373e813b2efce60"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YXEH4ZLFUOD4BQGGXFEU46ALZN/bundle.json","state_url":"https://pith.science/pith/YXEH4ZLFUOD4BQGGXFEU46ALZN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YXEH4ZLFUOD4BQGGXFEU46ALZN/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":"2026-08-07T06:17:50Z","links":{"resolver":"https://pith.science/pith/YXEH4ZLFUOD4BQGGXFEU46ALZN","bundle":"https://pith.science/pith/YXEH4ZLFUOD4BQGGXFEU46ALZN/bundle.json","state":"https://pith.science/pith/YXEH4ZLFUOD4BQGGXFEU46ALZN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YXEH4ZLFUOD4BQGGXFEU46ALZN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:YXEH4ZLFUOD4BQGGXFEU46ALZN","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":"fdd1e99fd60c578e64ce42f99a1bfd0759dc4ab74492e548993aceb913efe45a","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2003-01-21T17:43:07Z","title_canon_sha256":"c4363cf41daff9a93797f84c0cafdf695b146f314b07127619a5c6eb7b507843"},"schema_version":"1.0","source":{"id":"astro-ph/0301413","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0301413","created_at":"2026-07-04T16:36:21Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0301413v1","created_at":"2026-07-04T16:36:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0301413","created_at":"2026-07-04T16:36:21Z"},{"alias_kind":"pith_short_12","alias_value":"YXEH4ZLFUOD4","created_at":"2026-07-04T16:36:21Z"},{"alias_kind":"pith_short_16","alias_value":"YXEH4ZLFUOD4BQGG","created_at":"2026-07-04T16:36:21Z"},{"alias_kind":"pith_short_8","alias_value":"YXEH4ZLF","created_at":"2026-07-04T16:36:21Z"}],"graph_snapshots":[{"event_id":"sha256:2e0e74140671b5a931aae66362de34a8514819ceb64cbb637373e813b2efce60","target":"graph","created_at":"2026-07-04T16:36:21Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/astro-ph/0301413/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present VLBI images of the RS CVn binary star HR 5110 (=BH CVn; HD 118216), obtained from observations made at 8.4 GHz on 1994 May 29/30 in support of the NASA/Stanford Gravity Probe B project. Our images show an emission region with a core-halo morphology. The core was 0.39 +/- 0.09 mas (FWHM) in size, or 66% +/- 20% of the 0.6 +/- 0.1 mas diameter of the chromospherically active K subgiant star in the binary system. The halo was 1.95 +/- 0.22 mas (FWHM) in size, or 1.8 +/- 0.2 times the 1.1 +/- 0.1 mas separation of the centers of the K and F stars. The core increased significantly in bri","authors_text":"D. E. Lebach, I. I. Shapiro, J.-F. Lestrade, M. F. Bietenholz, M. I. Ratner, N. Bartel, R. R. Ransom","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2003-01-21T17:43:07Z","title":"VLBI imaging of the RS CVn binary star system HR 5110"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0301413","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:b1a1089aeacc936823706a2ad50c0a2f499b821a9cf44150b49cbaf2d4099294","target":"record","created_at":"2026-07-04T16:36:21Z","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":"fdd1e99fd60c578e64ce42f99a1bfd0759dc4ab74492e548993aceb913efe45a","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2003-01-21T17:43:07Z","title_canon_sha256":"c4363cf41daff9a93797f84c0cafdf695b146f314b07127619a5c6eb7b507843"},"schema_version":"1.0","source":{"id":"astro-ph/0301413","kind":"arxiv","version":1}},"canonical_sha256":"c5c87e6565a387c0c0c6b9494e780bcb4256e72a0ad2093ce983fc4a1fa70694","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c5c87e6565a387c0c0c6b9494e780bcb4256e72a0ad2093ce983fc4a1fa70694","first_computed_at":"2026-07-04T16:36:21.470337Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:36:21.470337Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"afxg7COqyb/k/imRl9AzYjCk6BVN2aNJWo3y4mZ7DafDKX47XIvqaibIChVsUZdt4RYU0sI2V9qnLN0ikgVPDg==","signature_status":"signed_v1","signed_at":"2026-07-04T16:36:21.470756Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0301413","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b1a1089aeacc936823706a2ad50c0a2f499b821a9cf44150b49cbaf2d4099294","sha256:2e0e74140671b5a931aae66362de34a8514819ceb64cbb637373e813b2efce60"],"state_sha256":"ace08eb73fdef64ecbbfd99bdf6db980fe650166dee0957f89da63a3a2f622f0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oNZse8DvoBCu60FPMvoXp2wnQuxdWp3H5FzLHotoc+e76QKrbFYIxa/KHyK8md3ktCbtpIl7qsSf9dwI68y8BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T06:17:50.243375Z","bundle_sha256":"b84944075e36f4327ad3ebc661ce86b21c0e2606f47d6bae2d8b6d05d46f8582"}}