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However, it is difficult to tell whether we have observed orbital decay, or a portion of a 14-year apsidal precession cycle. If interpreted as decay, the star's tidal quality parameter $Q_\\star$ is about $2\\times 10^5$. If interpreted as precession, the planet's Love number is $0.44\\pm 0.10$. Orbital decay appears to be the more parsimonious model: it is favored by $\\Delta\\chi^2=5.5$ despite having two f"},"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":"1703.06582","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-03-20T03:42:03Z","cross_cats_sorted":[],"title_canon_sha256":"1f91d8f36492f8528bef0c847c9c438b6c0c26f085c8e4295eaf685ce4202004","abstract_canon_sha256":"7322f7827cd56c60f1d3c36143d33e4f02cd0aba7d63cb5c8068612aa8c8e851"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:41:36.281431Z","signature_b64":"3WSi43Ro7NDbWsYYbtaA5PELDQv7P4bIEqVrE671ONaITzf6cEaoqCG1Y9p2sUu6eIVLyX3KMlWMaB7t6WOdBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e7599ad31f8a0e93988f63ad551a87065a5794814e79450384cdaca6b4e0f904","last_reissued_at":"2026-05-18T00:41:36.280730Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:41:36.280730Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Apparently Decaying Orbit of WASP-12","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Drake Deming, Fei Dai, Joshua N. 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