{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:X7EIUFFVI56DER3ZC6JQFXNUM7","short_pith_number":"pith:X7EIUFFV","canonical_record":{"source":{"id":"1807.08799","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-07-23T19:33:46Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"4e717f4f6161c6a49a677347482228fe50df70fce74e6be31a9d2f69d35d89bc","abstract_canon_sha256":"92b6ed68904e8d40c912fc8b87cb7f9f0d1af1259b485669a543cdb150016fbb"},"schema_version":"1.0"},"canonical_sha256":"bfc88a14b5477c324779179302ddb467e95e5e9a18548ba05ff202332096554c","source":{"kind":"arxiv","id":"1807.08799","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.08799","created_at":"2026-05-18T00:06:37Z"},{"alias_kind":"arxiv_version","alias_value":"1807.08799v1","created_at":"2026-05-18T00:06:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.08799","created_at":"2026-05-18T00:06:37Z"},{"alias_kind":"pith_short_12","alias_value":"X7EIUFFVI56D","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"X7EIUFFVI56DER3Z","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"X7EIUFFV","created_at":"2026-05-18T12:33:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:X7EIUFFVI56DER3ZC6JQFXNUM7","target":"record","payload":{"canonical_record":{"source":{"id":"1807.08799","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-07-23T19:33:46Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"4e717f4f6161c6a49a677347482228fe50df70fce74e6be31a9d2f69d35d89bc","abstract_canon_sha256":"92b6ed68904e8d40c912fc8b87cb7f9f0d1af1259b485669a543cdb150016fbb"},"schema_version":"1.0"},"canonical_sha256":"bfc88a14b5477c324779179302ddb467e95e5e9a18548ba05ff202332096554c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:06:37.356089Z","signature_b64":"hwJNSqCKxuqTjm/LB5x+Remaxw+MD+dllInxjgS8HosiRQTqBtfYIGKGZmmb9v1BDrv44h5rKnAXptYewMvyCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bfc88a14b5477c324779179302ddb467e95e5e9a18548ba05ff202332096554c","last_reissued_at":"2026-05-18T00:06:37.355425Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:06:37.355425Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.08799","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":"2026-05-18T00:06:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TduoTcAxPSd69fCc8Rbgz/94hYYgsm6JwOPlptZ5V8jcwnWGROqsVV5utc+Zn+Z1bkTyzALRXIAfZjWbMHU5Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T22:20:14.443447Z"},"content_sha256":"e12df9d3b4776a9bab2298aca48fbe08d83acb8af2761e7017f8aeb9c06e443a","schema_version":"1.0","event_id":"sha256:e12df9d3b4776a9bab2298aca48fbe08d83acb8af2761e7017f8aeb9c06e443a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:X7EIUFFVI56DER3ZC6JQFXNUM7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"WEIRD: Wide-orbit Exoplanet search with InfraRed Direct imaging","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Charles Beichman, David Lafreni\\`ere, \\'Etienne Artigau, Fr\\'ed\\'erique Baron, Jonathan Gagn\\'e, Julien Rameau, Lison Malo, Lo\\\"ic Albert, Marie-Eve Naud, Markus Janson, Philippe Delorme, Ren\\'e Doyon","submitted_at":"2018-07-23T19:33:46Z","abstract_excerpt":"We report results from the Wide-orbit Exoplanet search with InfraRed Direct imaging (WEIRD), a survey designed to search for Jupiter-like companions on very wide orbits (1000 to 5000 AU) around young stars ($<$120 Myr) that are known members of moving groups in the solar neighborhood ($<$70 pc). Sharing the same age, distance, and metallicity as their host while being on large enough orbits to be studied as \"isolated\" objects make such companions prime targets for spectroscopic observations and valuable benchmark objects for exoplanet atmosphere models. The search strategy is based on deep ima"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.08799","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":"2026-05-18T00:06:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PbM0RWe6wDoFGSLIrarvTQXOmV+xxYYP/FAWR//bSZhUIQcIMRzRr3ZwoGgRqtL70f8ZndQl+Q7/dNKu5H11AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T22:20:14.443793Z"},"content_sha256":"9855379e196e948653432a0316f639d66d57adca6fa8e7b128aeec30a297cf7c","schema_version":"1.0","event_id":"sha256:9855379e196e948653432a0316f639d66d57adca6fa8e7b128aeec30a297cf7c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/X7EIUFFVI56DER3ZC6JQFXNUM7/bundle.json","state_url":"https://pith.science/pith/X7EIUFFVI56DER3ZC6JQFXNUM7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/X7EIUFFVI56DER3ZC6JQFXNUM7/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":"2026-06-02T22:20:14Z","links":{"resolver":"https://pith.science/pith/X7EIUFFVI56DER3ZC6JQFXNUM7","bundle":"https://pith.science/pith/X7EIUFFVI56DER3ZC6JQFXNUM7/bundle.json","state":"https://pith.science/pith/X7EIUFFVI56DER3ZC6JQFXNUM7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/X7EIUFFVI56DER3ZC6JQFXNUM7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:X7EIUFFVI56DER3ZC6JQFXNUM7","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":"92b6ed68904e8d40c912fc8b87cb7f9f0d1af1259b485669a543cdb150016fbb","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-07-23T19:33:46Z","title_canon_sha256":"4e717f4f6161c6a49a677347482228fe50df70fce74e6be31a9d2f69d35d89bc"},"schema_version":"1.0","source":{"id":"1807.08799","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.08799","created_at":"2026-05-18T00:06:37Z"},{"alias_kind":"arxiv_version","alias_value":"1807.08799v1","created_at":"2026-05-18T00:06:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.08799","created_at":"2026-05-18T00:06:37Z"},{"alias_kind":"pith_short_12","alias_value":"X7EIUFFVI56D","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"X7EIUFFVI56DER3Z","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"X7EIUFFV","created_at":"2026-05-18T12:33:01Z"}],"graph_snapshots":[{"event_id":"sha256:9855379e196e948653432a0316f639d66d57adca6fa8e7b128aeec30a297cf7c","target":"graph","created_at":"2026-05-18T00:06:37Z","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 results from the Wide-orbit Exoplanet search with InfraRed Direct imaging (WEIRD), a survey designed to search for Jupiter-like companions on very wide orbits (1000 to 5000 AU) around young stars ($<$120 Myr) that are known members of moving groups in the solar neighborhood ($<$70 pc). Sharing the same age, distance, and metallicity as their host while being on large enough orbits to be studied as \"isolated\" objects make such companions prime targets for spectroscopic observations and valuable benchmark objects for exoplanet atmosphere models. The search strategy is based on deep ima","authors_text":"Charles Beichman, David Lafreni\\`ere, \\'Etienne Artigau, Fr\\'ed\\'erique Baron, Jonathan Gagn\\'e, Julien Rameau, Lison Malo, Lo\\\"ic Albert, Marie-Eve Naud, Markus Janson, Philippe Delorme, Ren\\'e Doyon","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-07-23T19:33:46Z","title":"WEIRD: Wide-orbit Exoplanet search with InfraRed Direct imaging"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.08799","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:e12df9d3b4776a9bab2298aca48fbe08d83acb8af2761e7017f8aeb9c06e443a","target":"record","created_at":"2026-05-18T00:06:37Z","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":"92b6ed68904e8d40c912fc8b87cb7f9f0d1af1259b485669a543cdb150016fbb","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-07-23T19:33:46Z","title_canon_sha256":"4e717f4f6161c6a49a677347482228fe50df70fce74e6be31a9d2f69d35d89bc"},"schema_version":"1.0","source":{"id":"1807.08799","kind":"arxiv","version":1}},"canonical_sha256":"bfc88a14b5477c324779179302ddb467e95e5e9a18548ba05ff202332096554c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bfc88a14b5477c324779179302ddb467e95e5e9a18548ba05ff202332096554c","first_computed_at":"2026-05-18T00:06:37.355425Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:06:37.355425Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hwJNSqCKxuqTjm/LB5x+Remaxw+MD+dllInxjgS8HosiRQTqBtfYIGKGZmmb9v1BDrv44h5rKnAXptYewMvyCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:06:37.356089Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.08799","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e12df9d3b4776a9bab2298aca48fbe08d83acb8af2761e7017f8aeb9c06e443a","sha256:9855379e196e948653432a0316f639d66d57adca6fa8e7b128aeec30a297cf7c"],"state_sha256":"55da102eda455e8f3c8fea6ce43831ce116b7ba0c90ffe07cd2364aec4b575e1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yCwxuxcVRzZxPu9y+zktnjuOWpKKJc9LmbZKtRVasF45GjABSZcQTIlS1OICN495hvJ7DnndVEdSjHA2hmpNCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T22:20:14.445735Z","bundle_sha256":"1e17386684e9e879bfc22bd966e2ef1635658e8b9b1f91d3730a66ac04ec00c1"}}