How Ancient Stones Worked Like Cryptocurrency
Source type: News / institutional article Author: Marina Fischer (numismatic collection specialist, University of Calgary Libraries) Publisher: University of Calgary News Date: 2019-09-16 URL: https://ucalgary.ca/news/how-ancient-stones-worked-cryptocurrency
Overview
A rare Yap rai stone was donated to the Nickle Galleries numismatic collection at the University of Calgary in July 2019. The article uses the donation to draw a conceptual parallel between Yapese rai stones — which relied on a distributed public oral ledger — and modern cryptocurrency / blockchain systems.
Key Points
The Rai Stone System
- Origin: Micronesian Island of Yap; stones mined on Palau islands, transported 400 km by canoe.
- Size: Up to 4 metres in diameter; possibly dating to 500 CE; still used today.
- Value mechanism: Value was not determined by size but by oral history — memorised by the village chief and tracked communally. A stone’s provenance, transfer history, and ownership were publicly known.
- Security: Because ownership was publicly known and recorded socially, theft was pointless — everyone knew who owned what. No central bank needed.
- Law: Yapese law (1965) prohibits removing stones from the island without government approval.
Parallel to Blockchain
The article argues that Yap stone money is the spiritual precursor to bitcoin and blockchain:
| Yap Rai | Bitcoin/Blockchain |
|---|---|
| Oral history of ownership | Distributed blockchain ledger |
| Community-verified transactions | Cryptographic consensus across nodes |
| No central bank | Decentralised, trustless network |
| Public transparency | Open transaction record |
“Both forms of currency depend upon a public, community ledger system that provides transparency about transactions, as well as security, and all without needing a centralized bank structure.”
Context
- Only two Yap stones exist in Canada: one at the Bank of Canada Museum, one at the University of Calgary (donated by George Manz, fellow of the Royal Canadian Numismatic Association).
- The Nickle Galleries numismatic collection contains 300+ ethnographic or pre-coinage currency objects.
Entities Mentioned
- marina-fischer — Author; numismatic collection specialist, U of C Libraries
- university-of-calgary — Institutional host; Nickle Galleries