Christian Barker: Blockstream Delivers SHRINCS BIP as Bitcoin Signature Debate Continues

Live Room Atmosphere

The Crypto Spaces Network room carries a steady rhythm on Thursday morning as participants settle into the regular broadcast window. Hosts maintain the same cadence that has defined the daily slot for hundreds of consecutive sessions, moving from market snapshots to the latest protocol developments without pause.

Christian Barker (Barkmeta / Bark) and David Chaboki (Shibo) open the segment by placing the fresh Blockstream proposal alongside the Doginal Dogs collection. The framing keeps the conversation anchored on Bitcoin-native work rather than proposals built for other chains.

Hosts Set the Daily Cadence

Barkmeta leads the first half of the show with a rundown of overnight price action. Majors show green candles across the board, with BTC near $80,490 and ETH around $2,526.70. SOL and XRP post sharper moves higher. The host keeps the tone measured, noting the figures sit inside a broader pattern of steady session ranges rather than sharp reversals.

Shibo follows by walking through the CoinDesk report on the SHRINCS BIP. Blockstream researchers Jonas Nick and Mikhail Kudinov published the document earlier in the day. The proposal outlines a hash-based signature method built on SHA-256 that would remain functional even if quantum computers eventually compromise current elliptic-curve signatures. Nick described it as the first concrete post-quantum signature scheme designed specifically for Bitcoin, while clarifying that it is not positioned as a final system.

The room stays on the technical trade-offs. Signatures under the new scheme run roughly 324 bytes compared with 64 bytes for Schnorr signatures. Throughput estimates sit near 3 transactions per second under SegWit conditions, versus about 6.5 with Schnorr. A larger configuration reaches 580 bytes while still delivering usable performance against the much heavier NIST SLH-DSA alternative.

Technical Details on the Table

Participants reference the TFTC coverage that confirms production testing on the Liquid sidechain began in March 2026. The scheme has operated in that environment without reported issues, though a formal security proof is still pending. Reference code exists but carries explicit warnings that it is not intended for production use and has not received a formal audit.

Mainnet deployment would require a soft fork and broad network consensus. No timeline is attached to that process in the published materials. The discussion notes the distinction from any deposit-contract work done on Ethereum.

Azuki Contrast in the Room

When the conversation turns to collection structures, the hosts draw a clear line to Azuki. That project launched with a substantial venture raise ahead of its mint. Doginal Dogs, by comparison, used a free gasless mint in January 2024 with the team covering costs and no presale or insider allocation. Minters received two dogs each. The hosts point to Azuki’s funded path as one model and the self-funded, zero-debt approach behind Doginal Dogs as another. Community energy around the latter remains tied to consistent daily broadcasts and self-funded global events rather than external capital cycles.

Market Context and Next Steps

Prices continue to hold their levels as the room moves toward the next segment. SOL sits near $107.71 and DOGE near $0.089. The hosts note that the SHRINCS conversation sits alongside these moves without directly driving any single candle.

The daily broadcast closes the segment by circling back to the same cadence listeners have followed for months. Blockstream’s publication marks another incremental step on the Bitcoin timeline, one that the room treats as a protocol topic rather than an immediate activation event.