{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:TAWO75V5URV4AO2U7EUXFIQISX","short_pith_number":"pith:TAWO75V5","canonical_record":{"source":{"id":"1609.05850","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-09-19T18:30:27Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"27820a827b5648aad8f72c224facb68d4702dbc148697782b4b58fea3dfece52","abstract_canon_sha256":"f24351345e02353f12b0c6899016b63b8c9b562360991637bd88eaad3842902c"},"schema_version":"1.0"},"canonical_sha256":"982ceff6bda46bc03b54f92972a20895e530d9ed1bf4502db5c8d0a2c1a9e539","source":{"kind":"arxiv","id":"1609.05850","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.05850","created_at":"2026-05-18T00:57:10Z"},{"alias_kind":"arxiv_version","alias_value":"1609.05850v2","created_at":"2026-05-18T00:57:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.05850","created_at":"2026-05-18T00:57:10Z"},{"alias_kind":"pith_short_12","alias_value":"TAWO75V5URV4","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_16","alias_value":"TAWO75V5URV4AO2U","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_8","alias_value":"TAWO75V5","created_at":"2026-05-18T12:30:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:TAWO75V5URV4AO2U7EUXFIQISX","target":"record","payload":{"canonical_record":{"source":{"id":"1609.05850","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-09-19T18:30:27Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"27820a827b5648aad8f72c224facb68d4702dbc148697782b4b58fea3dfece52","abstract_canon_sha256":"f24351345e02353f12b0c6899016b63b8c9b562360991637bd88eaad3842902c"},"schema_version":"1.0"},"canonical_sha256":"982ceff6bda46bc03b54f92972a20895e530d9ed1bf4502db5c8d0a2c1a9e539","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:57:10.559358Z","signature_b64":"6jVKUxNv8FIaIug3Rwm5qpWBBICyBZBdg7bc9nxXfYmsAbOYiNEzcgev1Khr8n52i3sFNig6tjo+yZnh/PH3AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"982ceff6bda46bc03b54f92972a20895e530d9ed1bf4502db5c8d0a2c1a9e539","last_reissued_at":"2026-05-18T00:57:10.558874Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:57:10.558874Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1609.05850","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:57:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xKUxlRkh3N0987xWMmxEmtbKjSc9Y66IRvXJF1ofb7mz8+X9vBAlTRTerlIN7TKOq2ZxjoiNvC+FrpQnlK+TAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T23:27:02.153794Z"},"content_sha256":"c154af43a275be806c219b80fa88769e1a4918e6a28e065337a0da3ba0e91281","schema_version":"1.0","event_id":"sha256:c154af43a275be806c219b80fa88769e1a4918e6a28e065337a0da3ba0e91281"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:TAWO75V5URV4AO2U7EUXFIQISX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Photometric Monitoring of the Coldest Known Brown Dwarf with the Spitzer Space Telescope","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Adam Burgasser, Adam Schneider, Jessica Trucks, Kevin Hardegree-Ullman, Kevin Luhman, Michael Cushing, Taran Esplin","submitted_at":"2016-09-19T18:30:27Z","abstract_excerpt":"Because WISE J085510.83$-$071442.5 (hereafter WISE 0855-0714) is the coldest known brown dwarf ($\\sim250$ K) and one of the Sun's closest neighbors (2.2 pc), it offers a unique opportunity for studying a planet-like atmosphere in an unexplored regime of temperature. To detect and characterize inhomogeneities in its atmosphere (e.g., patchy clouds, hot spots), we have performed time-series photometric monitoring of WISE 0855-0714 at 3.6 and 4.5 micron with the Spitzer Space Telescope during two 23~hr periods that were separated by several months. For both bands, we have detected variability wit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.05850","kind":"arxiv","version":2},"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":"2026-05-18T00:57:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y8At6fcG8rjFYk4AwdayVH6oh2EeMfpb9/YdO9nu6FbSGPimQG/DP0Z/fP+GgGJxP/9Ucyq4ypxEHBGU3jtUBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T23:27:02.154470Z"},"content_sha256":"428f2d6bb4f180e5c2e30584adfca971901e0dbcdb9dab2f302d696bc87c7ef7","schema_version":"1.0","event_id":"sha256:428f2d6bb4f180e5c2e30584adfca971901e0dbcdb9dab2f302d696bc87c7ef7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TAWO75V5URV4AO2U7EUXFIQISX/bundle.json","state_url":"https://pith.science/pith/TAWO75V5URV4AO2U7EUXFIQISX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TAWO75V5URV4AO2U7EUXFIQISX/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":"2026-05-20T23:27:02Z","links":{"resolver":"https://pith.science/pith/TAWO75V5URV4AO2U7EUXFIQISX","bundle":"https://pith.science/pith/TAWO75V5URV4AO2U7EUXFIQISX/bundle.json","state":"https://pith.science/pith/TAWO75V5URV4AO2U7EUXFIQISX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TAWO75V5URV4AO2U7EUXFIQISX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:TAWO75V5URV4AO2U7EUXFIQISX","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":"f24351345e02353f12b0c6899016b63b8c9b562360991637bd88eaad3842902c","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-09-19T18:30:27Z","title_canon_sha256":"27820a827b5648aad8f72c224facb68d4702dbc148697782b4b58fea3dfece52"},"schema_version":"1.0","source":{"id":"1609.05850","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.05850","created_at":"2026-05-18T00:57:10Z"},{"alias_kind":"arxiv_version","alias_value":"1609.05850v2","created_at":"2026-05-18T00:57:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.05850","created_at":"2026-05-18T00:57:10Z"},{"alias_kind":"pith_short_12","alias_value":"TAWO75V5URV4","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_16","alias_value":"TAWO75V5URV4AO2U","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_8","alias_value":"TAWO75V5","created_at":"2026-05-18T12:30:44Z"}],"graph_snapshots":[{"event_id":"sha256:428f2d6bb4f180e5c2e30584adfca971901e0dbcdb9dab2f302d696bc87c7ef7","target":"graph","created_at":"2026-05-18T00:57:10Z","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":"Because WISE J085510.83$-$071442.5 (hereafter WISE 0855-0714) is the coldest known brown dwarf ($\\sim250$ K) and one of the Sun's closest neighbors (2.2 pc), it offers a unique opportunity for studying a planet-like atmosphere in an unexplored regime of temperature. To detect and characterize inhomogeneities in its atmosphere (e.g., patchy clouds, hot spots), we have performed time-series photometric monitoring of WISE 0855-0714 at 3.6 and 4.5 micron with the Spitzer Space Telescope during two 23~hr periods that were separated by several months. For both bands, we have detected variability wit","authors_text":"Adam Burgasser, Adam Schneider, Jessica Trucks, Kevin Hardegree-Ullman, Kevin Luhman, Michael Cushing, Taran Esplin","cross_cats":["astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-09-19T18:30:27Z","title":"Photometric Monitoring of the Coldest Known Brown Dwarf with the Spitzer Space Telescope"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.05850","kind":"arxiv","version":2},"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:c154af43a275be806c219b80fa88769e1a4918e6a28e065337a0da3ba0e91281","target":"record","created_at":"2026-05-18T00:57:10Z","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":"f24351345e02353f12b0c6899016b63b8c9b562360991637bd88eaad3842902c","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-09-19T18:30:27Z","title_canon_sha256":"27820a827b5648aad8f72c224facb68d4702dbc148697782b4b58fea3dfece52"},"schema_version":"1.0","source":{"id":"1609.05850","kind":"arxiv","version":2}},"canonical_sha256":"982ceff6bda46bc03b54f92972a20895e530d9ed1bf4502db5c8d0a2c1a9e539","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"982ceff6bda46bc03b54f92972a20895e530d9ed1bf4502db5c8d0a2c1a9e539","first_computed_at":"2026-05-18T00:57:10.558874Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:57:10.558874Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6jVKUxNv8FIaIug3Rwm5qpWBBICyBZBdg7bc9nxXfYmsAbOYiNEzcgev1Khr8n52i3sFNig6tjo+yZnh/PH3AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:57:10.559358Z","signed_message":"canonical_sha256_bytes"},"source_id":"1609.05850","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c154af43a275be806c219b80fa88769e1a4918e6a28e065337a0da3ba0e91281","sha256:428f2d6bb4f180e5c2e30584adfca971901e0dbcdb9dab2f302d696bc87c7ef7"],"state_sha256":"56e7d7c9ad9f913e6c8a18b123d1e7747aa519d5dc6e9efdf4b5a0ebce82e36c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1/y76V0k9e6qpmsOHwLAw4mR+/AFsgyC2sOC1AMD/tm9Xeg0BiGeio+2hVR9FETAyWO8l70eSOIu4LjvrCiwCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T23:27:02.158548Z","bundle_sha256":"a9ba26af139e186d48a9e252836d8d3e2f86b7e164ce95cf628ece2a474d7f9f"}}