{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:77V63ZAWGSLGMH2NSISGWDHRIX","short_pith_number":"pith:77V63ZAW","canonical_record":{"source":{"id":"1807.08453","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-07-23T07:01:30Z","cross_cats_sorted":[],"title_canon_sha256":"544dcc4f8b51b4e967a85be49ceafae9c334cfd20eae95ca95536d5a81f3f2fb","abstract_canon_sha256":"37b132d8e6b83a7b83d6a401aea7b1b92731e069bd18ab87da3d45d8985727f4"},"schema_version":"1.0"},"canonical_sha256":"ffebede4163496661f4d92246b0cf145de30b0c2f476274d6b34cd59355eb7bf","source":{"kind":"arxiv","id":"1807.08453","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.08453","created_at":"2026-05-18T00:04:55Z"},{"alias_kind":"arxiv_version","alias_value":"1807.08453v1","created_at":"2026-05-18T00:04:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.08453","created_at":"2026-05-18T00:04:55Z"},{"alias_kind":"pith_short_12","alias_value":"77V63ZAWGSLG","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"77V63ZAWGSLGMH2N","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"77V63ZAW","created_at":"2026-05-18T12:32:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:77V63ZAWGSLGMH2NSISGWDHRIX","target":"record","payload":{"canonical_record":{"source":{"id":"1807.08453","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-07-23T07:01:30Z","cross_cats_sorted":[],"title_canon_sha256":"544dcc4f8b51b4e967a85be49ceafae9c334cfd20eae95ca95536d5a81f3f2fb","abstract_canon_sha256":"37b132d8e6b83a7b83d6a401aea7b1b92731e069bd18ab87da3d45d8985727f4"},"schema_version":"1.0"},"canonical_sha256":"ffebede4163496661f4d92246b0cf145de30b0c2f476274d6b34cd59355eb7bf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:04:55.410379Z","signature_b64":"MbTOWxUaEO+EhZjr8sEOXv4UpI0nFyuLT7adohBEVf57w50ZbXJ1YNBuNOGbABCNO9FBM3R2o8zYMGL4XgwJCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ffebede4163496661f4d92246b0cf145de30b0c2f476274d6b34cd59355eb7bf","last_reissued_at":"2026-05-18T00:04:55.409769Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:04:55.409769Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.08453","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":"2026-05-18T00:04:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"95A4VMBrztsRjwM7AfVSXrLxphVsWSEXxSJ0NUid606JK/V478wVHEMXb2b6fWv0vjdNSOfU+VKf0ANNDqhZBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T15:36:20.220031Z"},"content_sha256":"68b0e65e22301688ba7713d7253edd7a718bb5395b1b8f0edfd845b11ce4b079","schema_version":"1.0","event_id":"sha256:68b0e65e22301688ba7713d7253edd7a718bb5395b1b8f0edfd845b11ce4b079"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:77V63ZAWGSLGMH2NSISGWDHRIX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Color Classification of Extrasolar Giant Planets: Prospects and Cautions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Adam J. R. W. Smith, Bruce Macintosh, Jonathan J. Fortney, Mark S. Marley, Natasha E. Batalha, Nikole K. Lewis","submitted_at":"2018-07-23T07:01:30Z","abstract_excerpt":"Atmospheric characterization of directly imaged planets has thus far been limited to ground-based observations of young, self-luminous, Jovian planets. Near-term space- and ground- based facilities like \\emph{WFIRST} and ELTs will be able to directly image mature Jovian planets in reflected light, a critical step in support of future facilities that aim to directly image terrestrial planets in reflected light (e.g. HabEx, LUVOIR). These future facilities are considering the use of photometry to classify planets. Here, we investigate the intricacies of using colors to classify gas-giant planets"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.08453","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":"2026-05-18T00:04:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WVPmNM47vvyl6TuT/oURET8GAi+dXSS9veRYF+b6Op4rEYmAmc7FRjzMAplu4TF1bX8XcouiqY5PO7z59lXxBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T15:36:20.220748Z"},"content_sha256":"09d292ad85608aecbf1c83a0de8f866b651a214ffee47f851277d3b91de7c44d","schema_version":"1.0","event_id":"sha256:09d292ad85608aecbf1c83a0de8f866b651a214ffee47f851277d3b91de7c44d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/77V63ZAWGSLGMH2NSISGWDHRIX/bundle.json","state_url":"https://pith.science/pith/77V63ZAWGSLGMH2NSISGWDHRIX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/77V63ZAWGSLGMH2NSISGWDHRIX/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":"2026-06-06T15:36:20Z","links":{"resolver":"https://pith.science/pith/77V63ZAWGSLGMH2NSISGWDHRIX","bundle":"https://pith.science/pith/77V63ZAWGSLGMH2NSISGWDHRIX/bundle.json","state":"https://pith.science/pith/77V63ZAWGSLGMH2NSISGWDHRIX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/77V63ZAWGSLGMH2NSISGWDHRIX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:77V63ZAWGSLGMH2NSISGWDHRIX","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":"37b132d8e6b83a7b83d6a401aea7b1b92731e069bd18ab87da3d45d8985727f4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-07-23T07:01:30Z","title_canon_sha256":"544dcc4f8b51b4e967a85be49ceafae9c334cfd20eae95ca95536d5a81f3f2fb"},"schema_version":"1.0","source":{"id":"1807.08453","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.08453","created_at":"2026-05-18T00:04:55Z"},{"alias_kind":"arxiv_version","alias_value":"1807.08453v1","created_at":"2026-05-18T00:04:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.08453","created_at":"2026-05-18T00:04:55Z"},{"alias_kind":"pith_short_12","alias_value":"77V63ZAWGSLG","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"77V63ZAWGSLGMH2N","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"77V63ZAW","created_at":"2026-05-18T12:32:11Z"}],"graph_snapshots":[{"event_id":"sha256:09d292ad85608aecbf1c83a0de8f866b651a214ffee47f851277d3b91de7c44d","target":"graph","created_at":"2026-05-18T00:04:55Z","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":"Atmospheric characterization of directly imaged planets has thus far been limited to ground-based observations of young, self-luminous, Jovian planets. Near-term space- and ground- based facilities like \\emph{WFIRST} and ELTs will be able to directly image mature Jovian planets in reflected light, a critical step in support of future facilities that aim to directly image terrestrial planets in reflected light (e.g. HabEx, LUVOIR). These future facilities are considering the use of photometry to classify planets. Here, we investigate the intricacies of using colors to classify gas-giant planets","authors_text":"Adam J. R. W. Smith, Bruce Macintosh, Jonathan J. Fortney, Mark S. Marley, Natasha E. Batalha, Nikole K. Lewis","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-07-23T07:01:30Z","title":"Color Classification of Extrasolar Giant Planets: Prospects and Cautions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.08453","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":"sha256:68b0e65e22301688ba7713d7253edd7a718bb5395b1b8f0edfd845b11ce4b079","target":"record","created_at":"2026-05-18T00:04:55Z","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":"37b132d8e6b83a7b83d6a401aea7b1b92731e069bd18ab87da3d45d8985727f4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-07-23T07:01:30Z","title_canon_sha256":"544dcc4f8b51b4e967a85be49ceafae9c334cfd20eae95ca95536d5a81f3f2fb"},"schema_version":"1.0","source":{"id":"1807.08453","kind":"arxiv","version":1}},"canonical_sha256":"ffebede4163496661f4d92246b0cf145de30b0c2f476274d6b34cd59355eb7bf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ffebede4163496661f4d92246b0cf145de30b0c2f476274d6b34cd59355eb7bf","first_computed_at":"2026-05-18T00:04:55.409769Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:04:55.409769Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MbTOWxUaEO+EhZjr8sEOXv4UpI0nFyuLT7adohBEVf57w50ZbXJ1YNBuNOGbABCNO9FBM3R2o8zYMGL4XgwJCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:04:55.410379Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.08453","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:68b0e65e22301688ba7713d7253edd7a718bb5395b1b8f0edfd845b11ce4b079","sha256:09d292ad85608aecbf1c83a0de8f866b651a214ffee47f851277d3b91de7c44d"],"state_sha256":"abc90e70f818b444279ffa067f5af6c04a2014ff2208ffae4b0a097c9a2120fd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Vgk8W69XqrE+glE+Cr3rF26PiZ11f5gpflbOBjBSwfa+a4NsGSvM7mEAnBFIaRoyQDnm75mSjZxVqPl6yzdmBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T15:36:20.224024Z","bundle_sha256":"84311436ea5d2e7f073f4116b7b49c242fc69fbf312ecc0434b84359252b2f7d"}}