# \#nullifiers

**URL:** https://forum.aztec.network/tag/nullifiers/7.md

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## [TransferFrom & Escrow Nullification Patterns](https://forum.aztec.network/t/transferfrom-escrow-nullification-patterns/7528)

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**Author:** [@Mike](https://forum.aztec.network/u/Mike)\
**Replies:** 0\
**Last updated:** [March 6, 2025, 5:48pm UTC](https://forum.aztec.network/t/transferfrom-escrow-nullification-patterns/7528 "2025-03-06T17:48:40Z")

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TransferFrom: How to enable someone else to nullify your note? Escrow: Giving ownership of a note to a non-human smart contract. How can the note then be nullified? I explored in great detail the many considerations th…

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## [Reducing nullifier set 'state growth'](https://forum.aztec.network/t/reducing-nullifier-set-state-growth/155)

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**Author:** [@Mike](https://forum.aztec.network/u/Mike)\
**Replies:** 0\
**Last updated:** [January 5, 2023, 4:19pm UTC](https://forum.aztec.network/t/reducing-nullifier-set-state-growth/155 "2023-01-05T16:19:57Z")

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There’s a ‘Nullifier set state growth’ problem with zcash-like protocols like ours. The amount of nullifier data to store grows with every transaction, and can never be deleted by full nodes. If Aztec 3 has 1 tps, and …

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## [Should the private kernel check that all nullifiers were created by the msg.sender?](https://forum.aztec.network/t/should-the-private-kernel-check-that-all-nullifiers-were-created-by-the-msg-sender/337)

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**Author:** [@david-banks](https://forum.aztec.network/u/david-banks)\
**Replies:** 0\
**Last updated:** [May 8, 2023, 1:46pm UTC](https://forum.aztec.network/t/should-the-private-kernel-check-that-all-nullifiers-were-created-by-the-msg-sender/337 "2023-05-08T13:46:32Z")

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This discussion began on slack. Summary to kick off discourse discussion Prior to this discussion (pasted below), I thought that all nullifiers would be the hash of the corresponding note commitment and the user’s priva…