# Segwit Ephemeral Anchors

**URL:** <https://delvingbitcoin.org/t/segwit-ephemeral-anchors/160>\
**Category:** Protocol Design\
**Created:** [November 2, 2023, 5:14pm UTC](https://delvingbitcoin.org/t/segwit-ephemeral-anchors/160 "2023-11-02T17:14:32Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![ajtowns](https://delvingbitcoin.org/user_avatar/delvingbitcoin.org/ajtowns/32/417_2.png) [@ajtowns](https://delvingbitcoin.org/u/ajtowns)\
**Post date:** [November 2, 2023, 7:40pm UTC](https://delvingbitcoin.org/t/segwit-ephemeral-anchors/160/2 "2023-11-02T19:40:08Z")

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If you made the two digit code be `0x4e73` instead of `0xffff` that would give it the bech32m address `bc1pfeessrawgf` (ie “bc1p”, “fees”, checksum).

You can choose any three letters in the bech32 charset followed by either `q` or `s`, followed by the 6 char checksum. (0xffff is `bc1plllsqd8ech`; 0x0100 (1) gives `bc1pqyqqgs7ult`; 0x0001 (256) gives `bc1pqqqs4em24r` ~~and 0x0000 gives `bc1pqqqqqcnjqs`~~ )

EDIT: testnet/signet has 4e73 look like `tb1pfees9rn5nz` or with regtest `bcrt1pfeesnyr2tx`. `bitcoin-cli decodescript 51024e73` if you want to try other combinations for something fun.

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