Cancel a PIX key claim
Abandons a claim. Either side may call it - the claimer giving up, or the holder refusing to hand the key over (§8.2.11). claimId is in the path; the body carries key and accountId. The claim must resolve to a local row for the pair (claimId, your account), else 404 PIX-0020.
What reaches DICT depends on how far the claim got, and the counterparty can tell the difference. A row at status 5, 6 or 7 is live at DICT and is cancelled there. Anything else - notably status 4, recognised as claimable but never opened at DICT - is cancelled locally with NO DICT call, which is the fail-closed direction, because a spurious DICT cancel is the step that has no undo. The motivo follows the §8.2.11 matrix for the side and the claim type: a claimer (status 5 or 7) sends 0 = Solicitação do Usuário; a DONOR (status 6) sends 0 for a portability claim but 4 = Fraude for a possession claim, because 4 is the only value the Posse-Doador column accepts - so a possession refusal is recorded at Bacen as fraud rather than as a preference.
Either way the key row ends CANCELLED (-1) and soft-deleted. CANCELLED is terminal - the state machine has no edge out of it - so the claim cannot be revived; start over with POST /v1/entries followed by POST /v1/claims.
Authorizations
JWT bearer token issued by the identity provider.
Path Parameters
The claim id.
"claim-123"

