Add Informational BIP: Multilingual mnemonic display and input conventions #2192

pull osem23 wants to merge 2 commits into bitcoin:master from osem23:multilingual-mnemonic-bip changing 1 files +194 −0

osem23 commented at 10:42 PM on June 6, 2026: none

This adds an Informational BIP draft, "Multilingual mnemonic display and input conventions."

A display wordlist is a 2048-entry list in a target language, index-parallel to the canonical English BIP-39 wordlist. PBKDF2 runs only on the canonical English mnemonic; native-language renderings are a display and input layer with no new cryptographic surface; every seed produced under the convention is restorable in any BIP-39 wallet via its English form.

Reference implementation (MIT): https://github.com/osem23/bip39-wordlists-tzur

It ships 30 index-paired display wordlists with bidirectional mappings, the 10 canonical BIP-39 wordlists preserved byte-for-byte for spec comparison, a reference validator enforcing every MUST clause, reference decoders in Python, JavaScript, and Swift producing byte-identical seeds, and per-language conformance test vectors across the five BIP-39 entropy lengths.

Shipped in production by the TZUR Wallet suite (iPhone and Windows).

Per BIP-2, announced on the bitcoindev mailing list (post pending list moderation; archive link to follow).

I have not self-assigned a BIP number. License: BSD-2-Clause (document), MIT (reference implementation).
Add Informational BIP: Multilingual mnemonic display and input conventions 33f5678cec
Reword two clauses to satisfy the repository spell check 2b173984cb
in bip-osemberg-multilingual-mnemonic.md:6 in 2b173984cb
```
   0 | @@ -0,0 +1,194 @@
   1 | +<pre>
   2 | +  BIP: ?
   3 | +  Layer: Applications
   4 | +  Title: Multilingual mnemonic display and input conventions
   5 | +  Author: Daniel Osemberg <ceo@blocksight.live>
   6 | +  Discussions-To:
```
jonatack commented at 11:59 PM on June 6, 2026:

@osem23 Thank you for your proposal, but it was opened here prematurely before community discussion of your idea on the mailing list. Please see the README and BIP 3 for the process (thanks!)

osem23 commented at 2:24 PM on June 8, 2026:

Thank you for the clarification.

You are right, I opened this too early in the process.

I will move the discussion to the Bitcoin Development Mailing List first, collect feedback there, and only come back with a formal BIP draft if there is enough community interest and the proposal is mature enough.

I appreciate the guidance.

jonatack commented at 6:25 PM on June 8, 2026:

Thanks.

Shipped in production by the TZUR Wallet suite (iPhone and Windows). announced on the bitcoindev mailing list (post pending list moderation; archive link to follow).

Feedback from the list moderators is that you sent your post multiple times. If so, this creates extra moderation work that may lead to delay or rejection. Be sure to write in your own words (not LLM-generated), submit a quality post, and ensure it doesn't look like an advertisement for the wallet you describe. The list receives many low-quality or AI-written slop, so it is best to be patient; it can take time for a post from a non-regular contributor to get through the long queue.
jonatack added the label New BIP on Jun 6, 2026
jonatack closed this on Jun 6, 2026
osem23 deleted the branch on Jun 8, 2026

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osem23

jonatack

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New BIP