ZCASH'S UPGRADE COMES WITH A FREEZER

The real news

The story, straight

A private key is your digital permission to spend cryptocurrency. But permission only works when the network accepts the payment's format.

Owning the key cannot override the rules.

Zcash can hide who paid whom and how much. Its shielded pools are separate compartments using different generations of privacy technology.

Sprout is the oldest.

CoinDesk, citing ZecStats, reports about 12,226 ZEC remained in Sprout on 5 November. At $1,300 per coin, that is about $16 million.

Further withdrawals and price changes alter that estimate.

The NU7 network upgrade will reject version-4 transactions, the only format that spends Sprout coins. Anything left becomes unspendable, even with valid keys.

Imagine keeping your house key while the building upgrades into a freezer. Lil'meme has brought a microwave to a software problem.

Activation happens at block 3,543,405, expected near 21:30 ET on 5 November. That clock estimate depends on mining speed and could slip into early Asian hours Friday.

This is not a hack or theft. The coins remain in Zcash's issued supply.

ZIP 2003 allows for possible access restoration through a future upgrade, but warns spending may never be re-enabled.

Why retire Sprout? Its older machinery adds complexity and security risks, according to ZIP 2003.

NU7 also cuts target block time from 75 seconds to 25, shortening expected confirmation waits.

The useful move: check old wallet records for Sprout addresses beginning with zc and move affected coins before activation. A backup key is not a backup set of network rules.

Repost this before anyone adds oven gloves to their wallet backup kit.

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