

SIPO
Active Voting Power
₳ 93.77 M
Objectives
As a DRep, SIPO aims to build sustainable decentralized governance for Cardano. Leveraging experience as an ADA holder since 2017, a stake pool operator since the Shelley launch in July 2020, and a Japanese-language publisher with over 3,800 articles, SIPO evaluates and votes on proposals that preserve Cardano's decentralization while adapting it to society.
SIPO publishes the reasoning behind its votes in Japanese, including No and Abstain votes and the conditions under which it would vote Yes, so that delegators can judge whether SIPO still represents them.
SIPO will also work on a Web3.0-based sustainable circular regional revitalization system, connecting Cardano with the real world, and operates from a position that combines a global perspective with locally rooted activities, without being bound to specific groups.
カルダノのステークプールと DRep を運営し、投票の理由を日本語で公開しています。
Motivation
Currently, I am working at Symons Co., Ltd. on the development and operation of a Web 2.0-based sustainable circular regional revitalization system for local governments in Japan. I aim to become a bridge between Cardano and the real world by transitioning this system to a Web 3.0 base. Additionally, through research on a new bottom-up digital society model called "NEO Jomon + Blockchain + AI," I intend to work on developing next-generation consensus formation and governance models. By integrating these experiences with DRep activities, SIPO's motivation as a DRep is to contribute to the development of Cardano's sustainable ecosystem by fusing global perspectives with locally rooted activities.
Qualifications
1. ADA holder since 2017
2. Stake pool operator since July 2020 (registered the day after the Shelley hard fork), running three pools (SIPO / SIPO2 / SIPO3) that have produced 47,920 blocks (AdaStat, October 2026)
3. DRep since September 2024, having voted on 149 governance actions (126 Yes / 13 No / 10 Abstain, October 2026) with rationales published at sipo.tokyo
4. Over 3,800 articles on sipo.tokyo, including daily Cardano intelligence and governance analysis in Japanese
5. Midnight Foundation ambassador (Nightforce) and participant SPO in the RealFi SPO Accelerator Program (Alpha Cohort)
6. Research and corporate support through SITION Research and Consultation
7. Proponent of AIRA, a project to bring a regional revitalization system for Japanese local governments onto the Cardano blockchain
Payment address
| Vote | Type | GovAction | Transaction | |
|---|---|---|---|---|
Abstain | InfoAction | - | 2 weeks ago2026-10-07 | 01:06:11 | |
No | TreasuryWithdrawals | Withdraw 11,787,063 ada for the OpenZeppelin Stack administered by Intersect | 4 weeks ago2026-09-25 | 01:38:08 | |
Abstain | ParameterChange | Reduce minPoolCost to 75 ada | 1 month ago2026-09-14 | 23:57:38 | |
Yes | TreasuryWithdrawals | Reimburse Ikigai Info Governance Action Deposit. | 1 month ago2026-08-26 | 02:23:37 | |
No | TreasuryWithdrawals | Governance Incentives Framework 2026 | 1 month ago2026-08-26 | 02:22:11 | |
Yes | ParameterChange | Reduce minPoolCost to 75 ada and increase Plutus Memory Limits (Part 2) | 2 months ago2026-08-07 | 01:37:09 | |
Yes | InfoAction | Name the Protocol Version 12 hard fork “von Bergen“ | 2 months ago2026-08-01 | 22:50:04 | |
Yes | NewCommittee | Update Constitutional Committee 2026 | 2 months ago2026-08-01 | 14:51:12 | |
Yes | TreasuryWithdrawals | Withdraw 120,000,000 ada for AlphaGrowth’s Cardano PRIME | 2 months ago2026-08-01 | 14:22:27 | |
No | TreasuryWithdrawals | Revised Cardano dOSPO and OMF Program Proposal | 2 months ago2026-08-01 | 13:52:15 |
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