{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:EFKSBZ2QIIYH3ONL7IIDIFPL5H","short_pith_number":"pith:EFKSBZ2Q","canonical_record":{"source":{"id":"1610.07966","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-10-25T17:04:45Z","cross_cats_sorted":[],"title_canon_sha256":"f9025e74cb045fa622460a0300f65ebacb5af41116ae9589cd171444a8d27048","abstract_canon_sha256":"e62e8412e1e09fde10c76ff04ae87032770926fbfeaa4b24ce2f22908cc02732"},"schema_version":"1.0"},"canonical_sha256":"215520e75042307db9abfa103415ebe9c6ebd65edd168acff3e739e38840b800","source":{"kind":"arxiv","id":"1610.07966","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.07966","created_at":"2026-05-18T00:52:38Z"},{"alias_kind":"arxiv_version","alias_value":"1610.07966v1","created_at":"2026-05-18T00:52:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.07966","created_at":"2026-05-18T00:52:38Z"},{"alias_kind":"pith_short_12","alias_value":"EFKSBZ2QIIYH","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_16","alias_value":"EFKSBZ2QIIYH3ONL","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_8","alias_value":"EFKSBZ2Q","created_at":"2026-05-18T12:30:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:EFKSBZ2QIIYH3ONL7IIDIFPL5H","target":"record","payload":{"canonical_record":{"source":{"id":"1610.07966","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-10-25T17:04:45Z","cross_cats_sorted":[],"title_canon_sha256":"f9025e74cb045fa622460a0300f65ebacb5af41116ae9589cd171444a8d27048","abstract_canon_sha256":"e62e8412e1e09fde10c76ff04ae87032770926fbfeaa4b24ce2f22908cc02732"},"schema_version":"1.0"},"canonical_sha256":"215520e75042307db9abfa103415ebe9c6ebd65edd168acff3e739e38840b800","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:52:38.209312Z","signature_b64":"HljG+OhOAyrKrz+/GwWmuTbr0UYbNLCwQwkAN10rXrPmG93+2Oc+6jPYFFtD+FYsAtCdyM55NVVR+a7tRg22BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"215520e75042307db9abfa103415ebe9c6ebd65edd168acff3e739e38840b800","last_reissued_at":"2026-05-18T00:52:38.208875Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:52:38.208875Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.07966","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":"2026-05-18T00:52:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hpG+ahm6DIzipqd8Pd81uuLb5kQOaMcXV5bdeXmOgyT34sN5Q5Gl6Qw818os1LvmV+H8/qm/2BAsZ+1yuPZKDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T02:51:29.626289Z"},"content_sha256":"b915b4714a980fb6e23328b5e020d5e635786c5802b2f38bea77c606441433bb","schema_version":"1.0","event_id":"sha256:b915b4714a980fb6e23328b5e020d5e635786c5802b2f38bea77c606441433bb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:EFKSBZ2QIIYH3ONL7IIDIFPL5H","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Chandra Characterization of X-ray Emission in the Young F-Star Binary System HD 113766","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"C.A. Grady, C.H. Chen, C.M. Lisse, D.J. Christian, H.M. G\\\"unther, S.J. Wolk","submitted_at":"2016-10-25T17:04:45Z","abstract_excerpt":"Using Chandra we have obtained imaging X-ray spectroscopy of the 10 to 16 Myr old F-star binary HD 113766. We individually resolve the binary components for the first time in the X-ray and find a total 0.3 to 2.0 keV luminosity of 2.2e29 erg/sec, consistent with previous RASS estimates. We find emission from the easternmost, infrared-bright, dusty member HD 113766A to be only 10% that of the western, infrared-faint member HD 113766B. There is no evidence for a 3rd late-type stellar or sub-stellar member of HD113766 with Lx > 6e25 erg s-1 within 2 arcmin of the binary pair. The ratio of the two"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.07966","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":"2026-05-18T00:52:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"da8TE+Ye/iif2MWysevXxFhhlBh/tsb9J9wbKh2b9SMAb24udrTSXUlFKQrwXMwlW2ULLBGWQ8YRpg7INsqyAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T02:51:29.626682Z"},"content_sha256":"8fcfab30b26cea6a951d02e93383bcab50bc254ef15ae6e320305b90ec0ea922","schema_version":"1.0","event_id":"sha256:8fcfab30b26cea6a951d02e93383bcab50bc254ef15ae6e320305b90ec0ea922"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EFKSBZ2QIIYH3ONL7IIDIFPL5H/bundle.json","state_url":"https://pith.science/pith/EFKSBZ2QIIYH3ONL7IIDIFPL5H/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EFKSBZ2QIIYH3ONL7IIDIFPL5H/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":"2026-05-31T02:51:29Z","links":{"resolver":"https://pith.science/pith/EFKSBZ2QIIYH3ONL7IIDIFPL5H","bundle":"https://pith.science/pith/EFKSBZ2QIIYH3ONL7IIDIFPL5H/bundle.json","state":"https://pith.science/pith/EFKSBZ2QIIYH3ONL7IIDIFPL5H/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EFKSBZ2QIIYH3ONL7IIDIFPL5H/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:EFKSBZ2QIIYH3ONL7IIDIFPL5H","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":"e62e8412e1e09fde10c76ff04ae87032770926fbfeaa4b24ce2f22908cc02732","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-10-25T17:04:45Z","title_canon_sha256":"f9025e74cb045fa622460a0300f65ebacb5af41116ae9589cd171444a8d27048"},"schema_version":"1.0","source":{"id":"1610.07966","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.07966","created_at":"2026-05-18T00:52:38Z"},{"alias_kind":"arxiv_version","alias_value":"1610.07966v1","created_at":"2026-05-18T00:52:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.07966","created_at":"2026-05-18T00:52:38Z"},{"alias_kind":"pith_short_12","alias_value":"EFKSBZ2QIIYH","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_16","alias_value":"EFKSBZ2QIIYH3ONL","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_8","alias_value":"EFKSBZ2Q","created_at":"2026-05-18T12:30:12Z"}],"graph_snapshots":[{"event_id":"sha256:8fcfab30b26cea6a951d02e93383bcab50bc254ef15ae6e320305b90ec0ea922","target":"graph","created_at":"2026-05-18T00:52:38Z","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":"Using Chandra we have obtained imaging X-ray spectroscopy of the 10 to 16 Myr old F-star binary HD 113766. We individually resolve the binary components for the first time in the X-ray and find a total 0.3 to 2.0 keV luminosity of 2.2e29 erg/sec, consistent with previous RASS estimates. We find emission from the easternmost, infrared-bright, dusty member HD 113766A to be only 10% that of the western, infrared-faint member HD 113766B. There is no evidence for a 3rd late-type stellar or sub-stellar member of HD113766 with Lx > 6e25 erg s-1 within 2 arcmin of the binary pair. The ratio of the two","authors_text":"C.A. Grady, C.H. Chen, C.M. Lisse, D.J. Christian, H.M. G\\\"unther, S.J. Wolk","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-10-25T17:04:45Z","title":"Chandra Characterization of X-ray Emission in the Young F-Star Binary System HD 113766"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.07966","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:b915b4714a980fb6e23328b5e020d5e635786c5802b2f38bea77c606441433bb","target":"record","created_at":"2026-05-18T00:52:38Z","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":"e62e8412e1e09fde10c76ff04ae87032770926fbfeaa4b24ce2f22908cc02732","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-10-25T17:04:45Z","title_canon_sha256":"f9025e74cb045fa622460a0300f65ebacb5af41116ae9589cd171444a8d27048"},"schema_version":"1.0","source":{"id":"1610.07966","kind":"arxiv","version":1}},"canonical_sha256":"215520e75042307db9abfa103415ebe9c6ebd65edd168acff3e739e38840b800","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"215520e75042307db9abfa103415ebe9c6ebd65edd168acff3e739e38840b800","first_computed_at":"2026-05-18T00:52:38.208875Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:52:38.208875Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HljG+OhOAyrKrz+/GwWmuTbr0UYbNLCwQwkAN10rXrPmG93+2Oc+6jPYFFtD+FYsAtCdyM55NVVR+a7tRg22BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:52:38.209312Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.07966","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b915b4714a980fb6e23328b5e020d5e635786c5802b2f38bea77c606441433bb","sha256:8fcfab30b26cea6a951d02e93383bcab50bc254ef15ae6e320305b90ec0ea922"],"state_sha256":"f86e5a57ad680170b2dfcb9d3c3117fa5fe3fe2e1526f26f6c3fb9f40c874306"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T2LtaMBaUYRfJKHpEJeImFI/j4ddD4dkOCvRN8Nn7Ja8qC7Z97joTggiCiL9z91xRZIGGt0lA1WVh0ioTZ7ABQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T02:51:29.629249Z","bundle_sha256":"54cd42447d4063f7a49ab5c4b79febce7878ad9c5a95bc92c291d676592026be"}}