# Shielded Bitcoin: Private Transfers on the Bitcoin L1

**URL:** <https://delvingbitcoin.org/t/shielded-bitcoin-private-transfers-on-the-bitcoin-l1/2912>\
**Category:** Protocol Design\
**Tags:** privacy\
**Created:** [September 24, 2026, 5:45pm UTC](https://delvingbitcoin.org/t/shielded-bitcoin-private-transfers-on-the-bitcoin-l1/2912 "2026-09-24T17:45:34Z")\
**Posts on this page:** 1\
**Showing post:** 13

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**Author:** ![dorugoqu](https://delvingbitcoin.org/user_avatar/delvingbitcoin.org/dorugoqu/32/2472_2.png) [@dorugoqu](https://delvingbitcoin.org/u/dorugoqu)\
**Post date:** [October 26, 2026, 8:38pm UTC](https://delvingbitcoin.org/t/shielded-bitcoin-private-transfers-on-the-bitcoin-l1/2912/13 "2026-10-26T20:38:23Z")

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The shared state is only as well-defined as the validation rules every indexer applies. Since Bitcoin consensus does not reject malformed Shielded Bitcoin transfers, a circuit or encoding change could leave older wallets accepting a different note set from newer ones. The spec should pin versioning and activation rules, and include test vectors for replaying the same history across implementations.

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_[View the full topic](https://delvingbitcoin.org/t/shielded-bitcoin-private-transfers-on-the-bitcoin-l1/2912)._