Abstract
Owners of home GPUs need a low-friction way to contribute compute and receive verifiable payment. This paper describes scdo-gpu-share, a worker and coordinator system in which each worker is identified only by a secp256k1 key address and runs deterministic llama.cpp and Blender jobs. Results are compared by SHA-256 under duplicate dispatch: the first 20 jobs of every worker are always assigned twice, and 10% of later jobs are duplicated, never to a worker on the same public IP. Result batches are anchored as Merkle roots in the AgentLedger contract on SCDO Shard0 (chainId 5680), and only completed and anchored results are paid in the native unit SCDO0. A 10/10-minute schedule shares time between the owner and the platform, and idle platform time goes to public-good work (Folding@home team 1068523) or SCDO mining. A real-chain end-to-end run on 5 October 2026 produced four transactions in blocks 61707 to 61710 (registration, anchoring and two 0.01 SCDO0 payouts), all with receipt status 1, using 341,609 gas in total over a 38 s on-chain span. The end-to-end test also asserts that a second settlement pass sends no further payout.
摘要
家用 GPU 的擁有者需要一種低門檻的方式來貢獻算力並獲得可驗證的支付。本文介紹 scdo-gpu-share，這是一套工作節點與協調器系統，其中每個工作節點僅以 secp256k1 金鑰地址識別，並執行確定性的 llama.cpp 與 Blender 任務。結果在重複派發下以 SHA-256 進行比對：每個工作節點的前 20 個任務一律派發兩次，之後 10% 的任務會被重複派發，且絕不派給同一公網 IP 上的工作節點。結果批次以 Merkle 根錨定於 SCDO Shard0（chainId 5680）上的 AgentLedger 合約，且僅對已完成並已錨定的結果以原生單位 SCDO0 支付。10/10 分鐘的排程在擁有者與平台之間分配時間，平台的閒置時間用於公益運算（Folding@home 團隊 1068523）或 SCDO 挖礦。2026 年 10 月 5 日的一次真鏈端到端運行在區塊 61707 至 61710 產生四筆交易（註冊、錨定及兩筆 0.01 SCDO0 支付），收據狀態均為 1，共使用 341,609 gas，鏈上時間跨度為 38 秒。該端到端測試亦驗證第二次結算不會再發出任何支付。
Live-chain test
On 2026-10-05 the end-to-end flow ran on SCDO Shard0 (chainId 5680). The four transactions are public on the explorer:
- registerAgent (block 61707):
0x8bdf6badb4…3c954d8e - anchorRoot (block 61708):
0x73808b87e8…14191f0c - payout A (0.01 SCDO0) (block 61709):
0xd0989cd136…eb5d4167 - payout B (0.01 SCDO0) (block 61710):
0x841534aa41…6f3de0a3
A second settlement pass sent no further payout (idempotent).
真鏈實測
2026 年 10 月 5 日，在 SCDO Shard0（chainId 5680）上完成端到端流程。四筆交易均可在瀏覽器公開查看：
- registerAgent（區塊 61707）：
0x8bdf6badb4…3c954d8e - anchorRoot（區塊 61708）：
0x73808b87e8…14191f0c - 支付 A（0.01 SCDO0）（區塊 61709）：
0xd0989cd136…eb5d4167 - 支付 B（0.01 SCDO0）（區塊 61710）：
0x841534aa41…6f3de0a3
第二次結算未再發出任何支付（冪等）。
引用本文Cite this paper
BibTeX
@misc{zhang2026gpushare,
author = {Zhang, Ying Willam},
title = {Verifiable Home-{GPU} Compute Sharing with Duplicate-Dispatch Checks and {Merkle}-Anchored Receipts on a Sharded {PoW} Chain},
year = {2026},
month = oct,
publisher = {Zenodo},
howpublished = {Preprint},
doi = {10.5281/zenodo.23209839},
url = {https://doi.org/10.5281/zenodo.23209839},
note = {SCDO Laboratory, 9Y9 PTY LTD. CC BY 4.0}
}