{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:QZNX5YACEDBRCA2DUVF44DJLUM","short_pith_number":"pith:QZNX5YAC","canonical_record":{"source":{"id":"1110.2256","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-10-11T02:58:58Z","cross_cats_sorted":[],"title_canon_sha256":"f28bed48f8ea4f71e8397997eeaac4a35d73debd4460a1c6d310fe3ae57eaf09","abstract_canon_sha256":"1011104568aa841211fb074d7cf86945eceee87a35d082fc6a3141f95b97064a"},"schema_version":"1.0"},"canonical_sha256":"865b7ee00220c3110343a54bce0d2ba32c0bae7c590f59151088e2c67e4fef18","source":{"kind":"arxiv","id":"1110.2256","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.2256","created_at":"2026-05-18T02:00:13Z"},{"alias_kind":"arxiv_version","alias_value":"1110.2256v1","created_at":"2026-05-18T02:00:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.2256","created_at":"2026-05-18T02:00:13Z"},{"alias_kind":"pith_short_12","alias_value":"QZNX5YACEDBR","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"QZNX5YACEDBRCA2D","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"QZNX5YAC","created_at":"2026-05-18T12:26:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:QZNX5YACEDBRCA2DUVF44DJLUM","target":"record","payload":{"canonical_record":{"source":{"id":"1110.2256","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-10-11T02:58:58Z","cross_cats_sorted":[],"title_canon_sha256":"f28bed48f8ea4f71e8397997eeaac4a35d73debd4460a1c6d310fe3ae57eaf09","abstract_canon_sha256":"1011104568aa841211fb074d7cf86945eceee87a35d082fc6a3141f95b97064a"},"schema_version":"1.0"},"canonical_sha256":"865b7ee00220c3110343a54bce0d2ba32c0bae7c590f59151088e2c67e4fef18","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:13.917813Z","signature_b64":"SEu1119/GKwXRkQcZ+lh1MkTnc+Gc3XX/xC0eQ2bNVqeQ20FsveIXiNd5uKNPNX8CxYoyHsMTcUENfn2tU1lBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"865b7ee00220c3110343a54bce0d2ba32c0bae7c590f59151088e2c67e4fef18","last_reissued_at":"2026-05-18T02:00:13.917370Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:13.917370Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1110.2256","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":"2026-05-18T02:00:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wBrAT4qCtEQGgYnL7fM/gPD6v9vU27T0xUbCqsIqFfYk0OrLVPgcSPn7u3dz2wWfl/Ny1xfnsfzfQkeWSrjtCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T22:21:31.391122Z"},"content_sha256":"d402b94e1f8caa47b58aa4802212f7ddb260fb650d70a3ce0e260a9f1c6bcf53","schema_version":"1.0","event_id":"sha256:d402b94e1f8caa47b58aa4802212f7ddb260fb650d70a3ce0e260a9f1c6bcf53"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:QZNX5YACEDBRCA2DUVF44DJLUM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Higher-precision radial velocity measurements with the SOPHIE spectrograph using octagonal-section fibers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"A. Santerne, B. Chazelas, D. Tezier, F. Bouchy, F. Pepe. Y. Richaud, G. Avila, G. H\\'ebrard, G. Moreaux, I. Boisse, K. Arnaud, L. Arnold, R.F. Diaz, R. Sottile, S. Perruchot, X. Delfosse","submitted_at":"2011-10-11T02:58:58Z","abstract_excerpt":"High-precision spectrographs play a key role in exoplanet searches using the radial velocity technique. But at the accuracy level of 1 m.s-1, required for super-Earth characterization, stability of fiber-fed spectrograph performance is crucial considering variable observing conditions such as seeing, guiding and centering errors and, telescope vignetting. In fiber-fed spectrographs such as HARPS or SOPHIE, the fiber link scrambling properties are one of the main issues. Both the stability of the fiber near-field uniformity at the spectrograph entrance and of the far-field illumination on the e"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.2256","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":"2026-05-18T02:00:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zVnSqhYDKb6rGJSyBo56KPLbDyOGphB/zgq4lkpfh3ePY3qEm6+sTGBwoUuQpQ1204q3iO4691mCllEiJJ1SAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T22:21:31.391873Z"},"content_sha256":"8b280adf3c9836f64f5bb8bb778df6ddf6dc8f586cdf9a3239bc5ae5adc249df","schema_version":"1.0","event_id":"sha256:8b280adf3c9836f64f5bb8bb778df6ddf6dc8f586cdf9a3239bc5ae5adc249df"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QZNX5YACEDBRCA2DUVF44DJLUM/bundle.json","state_url":"https://pith.science/pith/QZNX5YACEDBRCA2DUVF44DJLUM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QZNX5YACEDBRCA2DUVF44DJLUM/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":"2026-05-27T22:21:31Z","links":{"resolver":"https://pith.science/pith/QZNX5YACEDBRCA2DUVF44DJLUM","bundle":"https://pith.science/pith/QZNX5YACEDBRCA2DUVF44DJLUM/bundle.json","state":"https://pith.science/pith/QZNX5YACEDBRCA2DUVF44DJLUM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QZNX5YACEDBRCA2DUVF44DJLUM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:QZNX5YACEDBRCA2DUVF44DJLUM","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":"1011104568aa841211fb074d7cf86945eceee87a35d082fc6a3141f95b97064a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-10-11T02:58:58Z","title_canon_sha256":"f28bed48f8ea4f71e8397997eeaac4a35d73debd4460a1c6d310fe3ae57eaf09"},"schema_version":"1.0","source":{"id":"1110.2256","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.2256","created_at":"2026-05-18T02:00:13Z"},{"alias_kind":"arxiv_version","alias_value":"1110.2256v1","created_at":"2026-05-18T02:00:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.2256","created_at":"2026-05-18T02:00:13Z"},{"alias_kind":"pith_short_12","alias_value":"QZNX5YACEDBR","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"QZNX5YACEDBRCA2D","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"QZNX5YAC","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:8b280adf3c9836f64f5bb8bb778df6ddf6dc8f586cdf9a3239bc5ae5adc249df","target":"graph","created_at":"2026-05-18T02:00:13Z","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":"High-precision spectrographs play a key role in exoplanet searches using the radial velocity technique. But at the accuracy level of 1 m.s-1, required for super-Earth characterization, stability of fiber-fed spectrograph performance is crucial considering variable observing conditions such as seeing, guiding and centering errors and, telescope vignetting. In fiber-fed spectrographs such as HARPS or SOPHIE, the fiber link scrambling properties are one of the main issues. Both the stability of the fiber near-field uniformity at the spectrograph entrance and of the far-field illumination on the e","authors_text":"A. Santerne, B. Chazelas, D. Tezier, F. Bouchy, F. Pepe. Y. Richaud, G. Avila, G. H\\'ebrard, G. Moreaux, I. Boisse, K. Arnaud, L. Arnold, R.F. Diaz, R. Sottile, S. Perruchot, X. Delfosse","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-10-11T02:58:58Z","title":"Higher-precision radial velocity measurements with the SOPHIE spectrograph using octagonal-section fibers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.2256","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:d402b94e1f8caa47b58aa4802212f7ddb260fb650d70a3ce0e260a9f1c6bcf53","target":"record","created_at":"2026-05-18T02:00:13Z","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":"1011104568aa841211fb074d7cf86945eceee87a35d082fc6a3141f95b97064a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-10-11T02:58:58Z","title_canon_sha256":"f28bed48f8ea4f71e8397997eeaac4a35d73debd4460a1c6d310fe3ae57eaf09"},"schema_version":"1.0","source":{"id":"1110.2256","kind":"arxiv","version":1}},"canonical_sha256":"865b7ee00220c3110343a54bce0d2ba32c0bae7c590f59151088e2c67e4fef18","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"865b7ee00220c3110343a54bce0d2ba32c0bae7c590f59151088e2c67e4fef18","first_computed_at":"2026-05-18T02:00:13.917370Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:13.917370Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SEu1119/GKwXRkQcZ+lh1MkTnc+Gc3XX/xC0eQ2bNVqeQ20FsveIXiNd5uKNPNX8CxYoyHsMTcUENfn2tU1lBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:13.917813Z","signed_message":"canonical_sha256_bytes"},"source_id":"1110.2256","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d402b94e1f8caa47b58aa4802212f7ddb260fb650d70a3ce0e260a9f1c6bcf53","sha256:8b280adf3c9836f64f5bb8bb778df6ddf6dc8f586cdf9a3239bc5ae5adc249df"],"state_sha256":"ae1b9062fe958462dcacd8cbbbd9029d24addf1b2797fea01af512801f6d4cda"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W23eQA5MDPVD+h7tJNGgB1JgyiDUKPswldsJaqPy1225Wzf/1RE1J7ch9EumOGth44Rgnvo8bNx92fO9gaE0Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T22:21:31.395396Z","bundle_sha256":"d2974d10d7ef8ac3476bc2f6ae752a362096c6ea85c0cda8120d74c60256d635"}}