{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:NXS5NUPEVMSOG5G4DIA3AD5VEQ","short_pith_number":"pith:NXS5NUPE","canonical_record":{"source":{"id":"0806.2883","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-17T23:13:27Z","cross_cats_sorted":[],"title_canon_sha256":"ae2c669fdc64c813380a129035dc424c18ec25837e8d253f79aacff23fd65c7b","abstract_canon_sha256":"33f607d844da618a2e73d10b39596cd4a268db58254f17b9e2ccd244ae2f1389"},"schema_version":"1.0"},"canonical_sha256":"6de5d6d1e4ab24e374dc1a01b00fb5243c79dba2feb9d6e4b3a8b05c566f693c","source":{"kind":"arxiv","id":"0806.2883","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0806.2883","created_at":"2026-07-04T17:11:19Z"},{"alias_kind":"arxiv_version","alias_value":"0806.2883v1","created_at":"2026-07-04T17:11:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0806.2883","created_at":"2026-07-04T17:11:19Z"},{"alias_kind":"pith_short_12","alias_value":"NXS5NUPEVMSO","created_at":"2026-07-04T17:11:19Z"},{"alias_kind":"pith_short_16","alias_value":"NXS5NUPEVMSOG5G4","created_at":"2026-07-04T17:11:19Z"},{"alias_kind":"pith_short_8","alias_value":"NXS5NUPE","created_at":"2026-07-04T17:11:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:NXS5NUPEVMSOG5G4DIA3AD5VEQ","target":"record","payload":{"canonical_record":{"source":{"id":"0806.2883","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-17T23:13:27Z","cross_cats_sorted":[],"title_canon_sha256":"ae2c669fdc64c813380a129035dc424c18ec25837e8d253f79aacff23fd65c7b","abstract_canon_sha256":"33f607d844da618a2e73d10b39596cd4a268db58254f17b9e2ccd244ae2f1389"},"schema_version":"1.0"},"canonical_sha256":"6de5d6d1e4ab24e374dc1a01b00fb5243c79dba2feb9d6e4b3a8b05c566f693c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:11:19.247903Z","signature_b64":"471SADfFWyloNoQyswBM2R/Esc+CQ0SFxjuBErwqQx2AZtXEideVuGMLyQwsGa4ZMAy1PjG/NghAr1E8rIV1DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6de5d6d1e4ab24e374dc1a01b00fb5243c79dba2feb9d6e4b3a8b05c566f693c","last_reissued_at":"2026-07-04T17:11:19.247565Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:11:19.247565Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0806.2883","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":"2026-07-04T17:11:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JrNuEHx7kCE9QKqVEylgdZC7gG11zo9cmCPuMU3L4zdnKufIaUdtvfWwdsl5GDOpsPhUtIL4o4/pVioHlVwODw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T18:21:15.227322Z"},"content_sha256":"ff7ee169fc90fc3f712975dc0d1ac7430cadcafde7cfb691aaaa32ed35bbab35","schema_version":"1.0","event_id":"sha256:ff7ee169fc90fc3f712975dc0d1ac7430cadcafde7cfb691aaaa32ed35bbab35"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:NXS5NUPEVMSOG5G4DIA3AD5VEQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Near Infrared Monitoring of Ultracool Dwarfs: Prospects for Searching for Transiting Companions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Andrew H. Szentgyorgyi, Cullen H. Blake, Dan S. Starr, David W. Latham, Emilio E. Falco, Joshua S. Bloom, Michael F. Skrutskie","submitted_at":"2008-06-17T23:13:27Z","abstract_excerpt":"Stars of late-M and L spectral types, collectively known as Ultracool Dwarfs (UCDs), may be excellent targets for searches for extrasolar planets. Owing to their small radii, the signal from an Earth-size planet transiting a UCD is, in principle, readily detectable. We present results from a study designed to evaluate the feasibility of using precise near infrared (NIR) photometry to detect terrestrial extrasolar planets orbiting UCDs. We used the Peters Automated InfRared Imaging TELescope (PAIRITEL) to observe a sample of 13 UCDs over a period of 10 months. We consider several important syst"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0806.2883","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0806.2883/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T17:11:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Vw0eiRosi1AzIKj2/maouZ4BeRxIhdHdFszr5yMJybfgO3J0ljeTeMckk0Opf5uzU7ZAuPEuMMeACF0cUy62Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T18:21:15.227922Z"},"content_sha256":"7319b7687b142ec575883e2bc5561313a7a5830bae8d3cd5f0a7d87c6c3fd082","schema_version":"1.0","event_id":"sha256:7319b7687b142ec575883e2bc5561313a7a5830bae8d3cd5f0a7d87c6c3fd082"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NXS5NUPEVMSOG5G4DIA3AD5VEQ/bundle.json","state_url":"https://pith.science/pith/NXS5NUPEVMSOG5G4DIA3AD5VEQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NXS5NUPEVMSOG5G4DIA3AD5VEQ/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":"2026-08-03T18:21:15Z","links":{"resolver":"https://pith.science/pith/NXS5NUPEVMSOG5G4DIA3AD5VEQ","bundle":"https://pith.science/pith/NXS5NUPEVMSOG5G4DIA3AD5VEQ/bundle.json","state":"https://pith.science/pith/NXS5NUPEVMSOG5G4DIA3AD5VEQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NXS5NUPEVMSOG5G4DIA3AD5VEQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:NXS5NUPEVMSOG5G4DIA3AD5VEQ","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":"33f607d844da618a2e73d10b39596cd4a268db58254f17b9e2ccd244ae2f1389","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-17T23:13:27Z","title_canon_sha256":"ae2c669fdc64c813380a129035dc424c18ec25837e8d253f79aacff23fd65c7b"},"schema_version":"1.0","source":{"id":"0806.2883","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0806.2883","created_at":"2026-07-04T17:11:19Z"},{"alias_kind":"arxiv_version","alias_value":"0806.2883v1","created_at":"2026-07-04T17:11:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0806.2883","created_at":"2026-07-04T17:11:19Z"},{"alias_kind":"pith_short_12","alias_value":"NXS5NUPEVMSO","created_at":"2026-07-04T17:11:19Z"},{"alias_kind":"pith_short_16","alias_value":"NXS5NUPEVMSOG5G4","created_at":"2026-07-04T17:11:19Z"},{"alias_kind":"pith_short_8","alias_value":"NXS5NUPE","created_at":"2026-07-04T17:11:19Z"}],"graph_snapshots":[{"event_id":"sha256:7319b7687b142ec575883e2bc5561313a7a5830bae8d3cd5f0a7d87c6c3fd082","target":"graph","created_at":"2026-07-04T17:11:19Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/0806.2883/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Stars of late-M and L spectral types, collectively known as Ultracool Dwarfs (UCDs), may be excellent targets for searches for extrasolar planets. Owing to their small radii, the signal from an Earth-size planet transiting a UCD is, in principle, readily detectable. We present results from a study designed to evaluate the feasibility of using precise near infrared (NIR) photometry to detect terrestrial extrasolar planets orbiting UCDs. We used the Peters Automated InfRared Imaging TELescope (PAIRITEL) to observe a sample of 13 UCDs over a period of 10 months. We consider several important syst","authors_text":"Andrew H. Szentgyorgyi, Cullen H. Blake, Dan S. Starr, David W. Latham, Emilio E. Falco, Joshua S. Bloom, Michael F. Skrutskie","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-17T23:13:27Z","title":"Near Infrared Monitoring of Ultracool Dwarfs: Prospects for Searching for Transiting Companions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0806.2883","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:ff7ee169fc90fc3f712975dc0d1ac7430cadcafde7cfb691aaaa32ed35bbab35","target":"record","created_at":"2026-07-04T17:11:19Z","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":"33f607d844da618a2e73d10b39596cd4a268db58254f17b9e2ccd244ae2f1389","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-17T23:13:27Z","title_canon_sha256":"ae2c669fdc64c813380a129035dc424c18ec25837e8d253f79aacff23fd65c7b"},"schema_version":"1.0","source":{"id":"0806.2883","kind":"arxiv","version":1}},"canonical_sha256":"6de5d6d1e4ab24e374dc1a01b00fb5243c79dba2feb9d6e4b3a8b05c566f693c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6de5d6d1e4ab24e374dc1a01b00fb5243c79dba2feb9d6e4b3a8b05c566f693c","first_computed_at":"2026-07-04T17:11:19.247565Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:11:19.247565Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"471SADfFWyloNoQyswBM2R/Esc+CQ0SFxjuBErwqQx2AZtXEideVuGMLyQwsGa4ZMAy1PjG/NghAr1E8rIV1DA==","signature_status":"signed_v1","signed_at":"2026-07-04T17:11:19.247903Z","signed_message":"canonical_sha256_bytes"},"source_id":"0806.2883","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ff7ee169fc90fc3f712975dc0d1ac7430cadcafde7cfb691aaaa32ed35bbab35","sha256:7319b7687b142ec575883e2bc5561313a7a5830bae8d3cd5f0a7d87c6c3fd082"],"state_sha256":"23ecc4914877fb14ca86fb5a761ac3c2811cd498f1a4243fcb7f967d2b3730a4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1HTdLAChLU1m7EJPMHavIlU8QUIdoGa/4UkAtrNurGXVEieW+PXTGCf23MuzBYv7VYy2e874CmiqmNL2Zln+Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T18:21:15.232257Z","bundle_sha256":"78bad160d0ddfa3ec0cb7ca283855b612114e0dfff802b5a8067bccb3821f7da"}}