Physical Bitcoin coins, flash auctions, and secure multisig: Satori relaunches the “Gi” with a 3,000 edition

A tangible collectible that combines craftsmanship, cryptographic security, and charity: Satori brings physical Bitcoin coins back to the market with the Gi model. The public launch is confirmed for September 25, 2025, according to the project’s official announcement, with a preview entrusted to auctions dedicated to low serials on Scarce.city scheduled from September 9 to 11, 2025, as indicated by the project’s official account on X. 

Want to score an early serial Satori Coin Gi before the store opens on September 25?

To celebrate our re-launch, serial numbers #0001 to #0010 will be auctioned on @scarcedotcity, starting September 9th.

All proceeds will be going to charity#Bitcoin #PhysicalBitcoin… pic.twitter.com/GNrukUPrNE

— Satori Coin (@satoricoin) August 27, 2025

To contextualize the product’s trajectory, in a 2021 coverage it was reported that previous Satori were loaded with amounts in the order of 0.001 BTC per unit.

According to data collected from official communications and auction platforms, the indicated dates have been publicly announced and are consistent across sales channels. Industry analysts note that flash auctions on specialized platforms tend to draw attention to low serial numbers and limited editions, increasing demand in the first days of sale.

What’s New in the “Gi” Model

• Limited edition: 3,000 pieces, with particular attention to the initial numbers.
• Design in machined aluminum and glass with screw mechanism; pattern inspired by traditional Japanese Ise Katagami techniques.
• Security through a 2-of-2 multisig scheme and tamper-evident seals characterized by a triple hologram.
• Loading at satoshi per auction specimens (0.01 BTC each).
• Charity: the proceeds from the first auctions will support five non-profit organizations.

Return of Physical Bitcoin Collectibles: Essential Timeline

The Satori Coin made their first appearance on online channels in 2017, and today they return to the market with the Gi line (high-end) and, in the future, with the Chi line (more accessible). That said, the goal remains the same: to bring people closer to self-custody by offering a well-crafted and verifiable physical support.

Launch Auctions: serials #0001–#0010 on Scarce.city

The auctions for the first ten specimens take place on Scarce.city from September 9 to 11, 2025, a window designed to capture the interest of collectors and donors.

• Serials: #0001–#0010, with #0001 auctioned separately as a unique piece for fundraising.
• Charge: 0.01 BTC per coin.
• Beneficiaries: five NGOs, with details on the transparency of donations to be announced by the platform.
• Tight deadlines: “flash” auctions designed to attract both collectors and donors.
• Costs: in addition to the auction price, there may be platform commission fees, shipping, taxes, and duties – it is advisable to check the conditions on the official Scarce.city website and on the project page.

The public launch of the “Gi” is confirmed for September 25, 2025, according to the project’s official announcement.

Design and Processing: Between Aesthetics and Integrity Verification

The Satori Coin Gi combines materials and technologies, using machined aluminum and glass associated with a screw system that allows controlled access to the internal part. It should be noted that the decorative motif, inspired by the art of Ise Katagami stencils, explicitly highlights the dialogue between tradition and technology.

• Holograms multiple anti-fraud, including devices positioned along the edge to detect any unauthorized openings.
• Seals visible to the naked eye for an immediate check of the device’s integrity.
• Accurate serialization to facilitate traceability and collectibility.

Security: how the 2-of-2 multisig works

The coin uses a 2-of-2 multisig scheme: to spend the funds, the signature of both keys is required, thus reducing the risk associated with the potential compromise of a single key stored in the physical object. In this context, the main advantages include:

• Risk reduction in case of physical theft or attempted tampering.
• Public Verifiability of related addresses, provided that the script and/or output are disclosed.
• Greater operational resilience, especially if accompanied by clear recovery procedures in case of loss or damage to the physical medium.

Further details, including the specific type of output (e.g., P2WSH), the script publication and public keys, as well as emergency procedures and certifications of seals and anti-tamper holograms, will be provided in the future through the official technical documentation on the project’s website satori-coin.com, which currently does not yet publish the complete documentation.

Market and Collecting: Why Interest is Growing

The combination of rarity, educational utility, and constructive care enhances the appeal for collectors. Physical coins with pre-loaded satoshis have already proven in the past to achieve valuations higher than the simple value of BTC, especially when it comes to low serial numbers and limited editions. That said, demand remains supported also for the educational aspect.

• Circulation: 3,000 units for the Gi line.
• Versions: Gi (high-end) and, in the future, Chi (more affordable and education-oriented).
• Educational use: serves as a concrete tool to explain the functioning of keys, digital signatures, and address verification in the Bitcoin network.

Prices, availability, and additional costs

• Retail price: it has not been publicly disclosed until now.
• Auctions: the values will be determined by the market on Scarce.city during the period indicated above.
• Extra: any platform fees, shipping costs, taxes, and duties will be the responsibility of the buyer.

Where to Get Information and How to Verify

• Official project website: satori-coin.com, where you can find technical specifications, the event calendar, and availability information.
• Auction platform: Scarce.city, which provides details on rules, fees, and donation transparency.

Quick FAQ

• Is the Gi suitable for starting? Yes: it combines a tangible object with a practical explanation of keys, multisig signatures, and anti-fraud verifications.
• How many pieces are expected? There are exclusively 3,000 units for the Gi line.
• Is it possible to spend without opening the coin? It depends on the official procedures: two signatures are required to authorize a transaction. Physical access and the signing procedure must be documented by the development team.

In summary

The relaunch of Satori Coin Gi focuses on a limited edition, a refined design, and advanced security technologies through the 2-of-2 multisig scheme. The public launch is confirmed for September 25, 2025, accompanied by auctions for the first serials on Scarce.city. 

Yet, the decisive element will be the technical documentation: while awaiting updates on artistic credits and charity beneficiaries, the interest of collectors and self-custody enthusiasts remains high.