{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:AVGPXFOPTVQDGFRNQHJ4WQM34X","short_pith_number":"pith:AVGPXFOP","schema_version":"1.0","canonical_sha256":"054cfb95cf9d6033162d81d3cb419be5ebd1ddf85e86c36f4d3b91460d053574","source":{"kind":"arxiv","id":"1106.1201","version":2},"attestation_state":"computed","paper":{"title":"The Young Planet-mass Object 2M1207b: a cool, cloudy, and methane-poor atmosphere","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Bruce Macintosh, Christian Marois, Quinn M. Konopacky, Travis S. Barman","submitted_at":"2011-06-06T21:20:48Z","abstract_excerpt":"The properties of 2M1207b, a young (~ 8 Myr) planet-mass companion, have lacked a satisfactory explanation for some time. The combination of low luminosity, red near-IR colors, and L-type near-IR spectrum (previously consistent with Teff ~ 1600K) implies an abnormally small radius. Early explanations for the apparent underluminosity of 2M1207b invoked an edge-on disk or the remnant of a recent protoplanetary collision. The discovery of a second planet-mass object (HR8799b) with similar luminosity and colors as 2M1207b indicates that a third explanation, one of a purely atmospheric nature, is m"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1106.1201","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-06-06T21:20:48Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"2415cae8f6701b8965375664e829ae21283beb5551f89ef668ede0275beae5e6","abstract_canon_sha256":"336f4b115b4b2ca12dd41518ba7961986537a0e20acca82d0c229c64364c12a5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:01:41.490921Z","signature_b64":"f8G/8XchWW0BXFyoWV1WswXKjK6UyyG05MQBVMQcqj9gksyJc2Ps7H8qLHrapB3CR5t9GwpKdJe7TaB3ph1kCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"054cfb95cf9d6033162d81d3cb419be5ebd1ddf85e86c36f4d3b91460d053574","last_reissued_at":"2026-05-18T02:01:41.490140Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:01:41.490140Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Young Planet-mass Object 2M1207b: a cool, cloudy, and methane-poor atmosphere","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Bruce Macintosh, Christian Marois, Quinn M. Konopacky, Travis S. Barman","submitted_at":"2011-06-06T21:20:48Z","abstract_excerpt":"The properties of 2M1207b, a young (~ 8 Myr) planet-mass companion, have lacked a satisfactory explanation for some time. The combination of low luminosity, red near-IR colors, and L-type near-IR spectrum (previously consistent with Teff ~ 1600K) implies an abnormally small radius. Early explanations for the apparent underluminosity of 2M1207b invoked an edge-on disk or the remnant of a recent protoplanetary collision. The discovery of a second planet-mass object (HR8799b) with similar luminosity and colors as 2M1207b indicates that a third explanation, one of a purely atmospheric nature, is m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.1201","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1106.1201","created_at":"2026-05-18T02:01:41.490258+00:00"},{"alias_kind":"arxiv_version","alias_value":"1106.1201v2","created_at":"2026-05-18T02:01:41.490258+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1106.1201","created_at":"2026-05-18T02:01:41.490258+00:00"},{"alias_kind":"pith_short_12","alias_value":"AVGPXFOPTVQD","created_at":"2026-05-18T12:26:24.575870+00:00"},{"alias_kind":"pith_short_16","alias_value":"AVGPXFOPTVQDGFRN","created_at":"2026-05-18T12:26:24.575870+00:00"},{"alias_kind":"pith_short_8","alias_value":"AVGPXFOP","created_at":"2026-05-18T12:26:24.575870+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/AVGPXFOPTVQDGFRNQHJ4WQM34X","json":"https://pith.science/pith/AVGPXFOPTVQDGFRNQHJ4WQM34X.json","graph_json":"https://pith.science/api/pith-number/AVGPXFOPTVQDGFRNQHJ4WQM34X/graph.json","events_json":"https://pith.science/api/pith-number/AVGPXFOPTVQDGFRNQHJ4WQM34X/events.json","paper":"https://pith.science/paper/AVGPXFOP"},"agent_actions":{"view_html":"https://pith.science/pith/AVGPXFOPTVQDGFRNQHJ4WQM34X","download_json":"https://pith.science/pith/AVGPXFOPTVQDGFRNQHJ4WQM34X.json","view_paper":"https://pith.science/paper/AVGPXFOP","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1106.1201&json=true","fetch_graph":"https://pith.science/api/pith-number/AVGPXFOPTVQDGFRNQHJ4WQM34X/graph.json","fetch_events":"https://pith.science/api/pith-number/AVGPXFOPTVQDGFRNQHJ4WQM34X/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/AVGPXFOPTVQDGFRNQHJ4WQM34X/action/timestamp_anchor","attest_storage":"https://pith.science/pith/AVGPXFOPTVQDGFRNQHJ4WQM34X/action/storage_attestation","attest_author":"https://pith.science/pith/AVGPXFOPTVQDGFRNQHJ4WQM34X/action/author_attestation","sign_citation":"https://pith.science/pith/AVGPXFOPTVQDGFRNQHJ4WQM34X/action/citation_signature","submit_replication":"https://pith.science/pith/AVGPXFOPTVQDGFRNQHJ4WQM34X/action/replication_record"}},"created_at":"2026-05-18T02:01:41.490258+00:00","updated_at":"2026-05-18T02:01:41.490258+00:00"}