{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:RNI6F75Z22NE7FQ2NXUOUZEJNR","short_pith_number":"pith:RNI6F75Z","canonical_record":{"source":{"id":"1101.0059","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2010-12-30T09:50:58Z","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"title_canon_sha256":"f8d21122ee09fb61f898b093f47c51654af152a6727d0c8fca575db8dc5b02c2","abstract_canon_sha256":"1ad700d4850ead7d5221d332b1b43cafa465a35b604825e1e0bff523b396f6f9"},"schema_version":"1.0"},"canonical_sha256":"8b51e2ffb9d69a4f961a6de8ea64896c73968b8c319a4171f8364d62999952ee","source":{"kind":"arxiv","id":"1101.0059","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.0059","created_at":"2026-05-18T02:04:16Z"},{"alias_kind":"arxiv_version","alias_value":"1101.0059v1","created_at":"2026-05-18T02:04:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.0059","created_at":"2026-05-18T02:04:16Z"},{"alias_kind":"pith_short_12","alias_value":"RNI6F75Z22NE","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"RNI6F75Z22NE7FQ2","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"RNI6F75Z","created_at":"2026-05-18T12:26:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:RNI6F75Z22NE7FQ2NXUOUZEJNR","target":"record","payload":{"canonical_record":{"source":{"id":"1101.0059","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2010-12-30T09:50:58Z","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"title_canon_sha256":"f8d21122ee09fb61f898b093f47c51654af152a6727d0c8fca575db8dc5b02c2","abstract_canon_sha256":"1ad700d4850ead7d5221d332b1b43cafa465a35b604825e1e0bff523b396f6f9"},"schema_version":"1.0"},"canonical_sha256":"8b51e2ffb9d69a4f961a6de8ea64896c73968b8c319a4171f8364d62999952ee","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:04:16.514189Z","signature_b64":"EoOxU2l8AQC5Zs+3uo17NYbNB70fQUvVV5OZCPuHDTKk97V7blnJbhbXNFbXt3+W8obZwHAUrJS4K9POfxvFAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8b51e2ffb9d69a4f961a6de8ea64896c73968b8c319a4171f8364d62999952ee","last_reissued_at":"2026-05-18T02:04:16.513516Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:04:16.513516Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1101.0059","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":"2026-05-18T02:04:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"unaVl0WcvAJYSYmUcgKfkaZyKnTtcUdykZcw3wMPz+tftLwLcK3sY84wmRVxR1gNoEbyCNPQo6YH8g3sRZFZAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T20:18:53.748589Z"},"content_sha256":"3de0f389fb2b318e31886293b25b828561efe1b200d9ef6b958b58d4cc5acbd8","schema_version":"1.0","event_id":"sha256:3de0f389fb2b318e31886293b25b828561efe1b200d9ef6b958b58d4cc5acbd8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:RNI6F75Z22NE7FQ2NXUOUZEJNR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Polarized reflected light from the exoplanet HD189733b: First multicolor observations and confirmation of detection","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM","astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"A. V. Berdyugin, D. M. Fluri, S. V. Berdyugina, V. Piirola","submitted_at":"2010-12-30T09:50:58Z","abstract_excerpt":"We report first multicolor polarimetric measurements (UBV bands) for the hot Jupiters HD189733b and confirm our previously reported detection of polarization in the B band (Berdyugina et al. 2008). The wavelength dependence of polarization indicates the dominance of Rayleigh scattering with a peak in the blue B and U bands of ~10^-4+/-10^-5 and at least a factor of two lower signal in the V band. The Rayleigh-like wavelength dependence, detected also in the transmitted light during transits, implies a rapid decrease of the polarization signal toward longer wavelengths. Therefore, the nondetect"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.0059","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":"2026-05-18T02:04:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PdgCCkEVsmO4R68b1j00Lg8JqOLivNp3i2myxEbPu1KJSl0YYQbOOCmnVP09UMWdvRLE5awdrG0HBIqLKDlfBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T20:18:53.749237Z"},"content_sha256":"81555c1cdcea66b9c2aa6c9f6efa40e7a0cc974e36085e3f8b411b9f2bf93eac","schema_version":"1.0","event_id":"sha256:81555c1cdcea66b9c2aa6c9f6efa40e7a0cc974e36085e3f8b411b9f2bf93eac"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RNI6F75Z22NE7FQ2NXUOUZEJNR/bundle.json","state_url":"https://pith.science/pith/RNI6F75Z22NE7FQ2NXUOUZEJNR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RNI6F75Z22NE7FQ2NXUOUZEJNR/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":"2026-05-28T20:18:53Z","links":{"resolver":"https://pith.science/pith/RNI6F75Z22NE7FQ2NXUOUZEJNR","bundle":"https://pith.science/pith/RNI6F75Z22NE7FQ2NXUOUZEJNR/bundle.json","state":"https://pith.science/pith/RNI6F75Z22NE7FQ2NXUOUZEJNR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RNI6F75Z22NE7FQ2NXUOUZEJNR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:RNI6F75Z22NE7FQ2NXUOUZEJNR","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":"1ad700d4850ead7d5221d332b1b43cafa465a35b604825e1e0bff523b396f6f9","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2010-12-30T09:50:58Z","title_canon_sha256":"f8d21122ee09fb61f898b093f47c51654af152a6727d0c8fca575db8dc5b02c2"},"schema_version":"1.0","source":{"id":"1101.0059","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.0059","created_at":"2026-05-18T02:04:16Z"},{"alias_kind":"arxiv_version","alias_value":"1101.0059v1","created_at":"2026-05-18T02:04:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.0059","created_at":"2026-05-18T02:04:16Z"},{"alias_kind":"pith_short_12","alias_value":"RNI6F75Z22NE","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"RNI6F75Z22NE7FQ2","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"RNI6F75Z","created_at":"2026-05-18T12:26:13Z"}],"graph_snapshots":[{"event_id":"sha256:81555c1cdcea66b9c2aa6c9f6efa40e7a0cc974e36085e3f8b411b9f2bf93eac","target":"graph","created_at":"2026-05-18T02:04:16Z","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":"We report first multicolor polarimetric measurements (UBV bands) for the hot Jupiters HD189733b and confirm our previously reported detection of polarization in the B band (Berdyugina et al. 2008). The wavelength dependence of polarization indicates the dominance of Rayleigh scattering with a peak in the blue B and U bands of ~10^-4+/-10^-5 and at least a factor of two lower signal in the V band. The Rayleigh-like wavelength dependence, detected also in the transmitted light during transits, implies a rapid decrease of the polarization signal toward longer wavelengths. Therefore, the nondetect","authors_text":"A. V. Berdyugin, D. M. Fluri, S. V. Berdyugina, V. Piirola","cross_cats":["astro-ph.IM","astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2010-12-30T09:50:58Z","title":"Polarized reflected light from the exoplanet HD189733b: First multicolor observations and confirmation of detection"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.0059","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":"sha256:3de0f389fb2b318e31886293b25b828561efe1b200d9ef6b958b58d4cc5acbd8","target":"record","created_at":"2026-05-18T02:04:16Z","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":"1ad700d4850ead7d5221d332b1b43cafa465a35b604825e1e0bff523b396f6f9","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2010-12-30T09:50:58Z","title_canon_sha256":"f8d21122ee09fb61f898b093f47c51654af152a6727d0c8fca575db8dc5b02c2"},"schema_version":"1.0","source":{"id":"1101.0059","kind":"arxiv","version":1}},"canonical_sha256":"8b51e2ffb9d69a4f961a6de8ea64896c73968b8c319a4171f8364d62999952ee","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8b51e2ffb9d69a4f961a6de8ea64896c73968b8c319a4171f8364d62999952ee","first_computed_at":"2026-05-18T02:04:16.513516Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:04:16.513516Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"EoOxU2l8AQC5Zs+3uo17NYbNB70fQUvVV5OZCPuHDTKk97V7blnJbhbXNFbXt3+W8obZwHAUrJS4K9POfxvFAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:04:16.514189Z","signed_message":"canonical_sha256_bytes"},"source_id":"1101.0059","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3de0f389fb2b318e31886293b25b828561efe1b200d9ef6b958b58d4cc5acbd8","sha256:81555c1cdcea66b9c2aa6c9f6efa40e7a0cc974e36085e3f8b411b9f2bf93eac"],"state_sha256":"52dc108eadf882eb4d03fa084f6ddb72b719cb3bc6ba9d0d2191ba5495c7689b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AAf23fT+CnY0fh4DTHocdPDbhXpHu4CRX10dwc2UTksQGWhK88Bse8ClWyCOhs6cv5oyxPEmcgGOYHx4KGRFAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T20:18:53.752232Z","bundle_sha256":"0b0a5183a2181e35ab3f62c05c8a3d14bd5b9f5060ae2da7bb4135b770c72bb1"}}