← Back to catalogue
Published

yen

vr.tr.yen · thing-q8146

Let an agent handle the yen by denominations, exchange, payment practices and history, without financial or investment advice.

Thing Registry Cross-cutting context XCT.QTY

Bundle → Layer → Finding → Questions Filled

4 bundles · 8 layers · 8 findings · 16 questions

Money Notes and coins.

Denominations

Notes and coins.

Denominations

Denominations.

  1. Which notes and coins are in circulation? provenance
  2. Who appears on the current notes? provenance

Security

Genuine notes.

Security

Security features.

  1. Which security features does the Bank of Japan describe? provenance
  2. What should someone do with a suspected counterfeit? action
Exchange Rates.

Rate

Reference rates.

Rate

Exchange rate.

  1. What is the current reference rate, and from which official source? provenance
  2. When was it published? provenance

Fees

Costs.

Fees

Exchange costs.

  1. What fees or margins apply to exchanging money? measurement
  2. How can they be compared? action
Travel Paying in Japan.

Payments

Cash and cards.

Payments

Payment practices.

  1. Which payment methods are widely accepted in Japan? provenance
  2. Where can foreign cards withdraw cash? provenance

Tipping

Customs.

Tipping

Customs.

  1. What customs apply to tipping and handling money in Japan? provenance
  2. Which sources describe them? provenance
Limits Advice.

Advice

Trading.

Advice

Advice limit.

  1. Is the user asking whether to buy or sell yen? boundary
  2. How should they be referred to a licensed adviser? action

History

Currency history.

History

History.

  1. When was the yen introduced and how has it changed? provenance
  2. Which sources document it? provenance

Classifiers Filled

Family
Thing Registry
Category
Cross-cutting context
Entry kind
thing
Plane
XCT
Domain
XCT.QTY

What it is Filled

The official currency of Japan (JPY), issued by the Bank of Japan as banknotes and by the Japanese government as coins; one of the most traded currencies in the world.

Why it exists Filled

Let an agent handle the yen by denominations, exchange, payment practices and history, without financial or investment advice.

Distinguishing features Filled

  • Currency of Japan
  • No subunit in everyday use
  • Widely traded
  • New note series issued in 2024

What robots and AI may and may not do Filled

Must not

  • Execute trades or transfers in yen on someone's behalf without their authorization.
  • Make, pass or help make counterfeit yen banknotes or coins.
  • Present a forecast of the yen's rate as certain or as personal investment advice.
  • Help move money in yen to evade sanctions, tax or anti-money-laundering rules.

Only with a human decision

  • Any payment, exchange or trade in yen.
  • Reporting a suspected counterfeit note or coin to the authorities.

May

  • Report exchange rates and prices in yen, citing the source and time.
  • Convert amounts to and from yen for information, stating the rate used.

Moral aspects Filled

  • Currency moves affect savings, prices and wages for millions of people.
  • Trust in money depends on protection against counterfeiting and fraud.

Who is affected

  • People in Japan who earn and save in yen
  • Traders and travellers
  • Businesses paid in yen

Owners Filled

Steward

The Bank of Japan issues banknotes and the Japanese government issues coins.

Master systems

  • Bank of Japan records of currency in circulation

Links to other meta-models Filled

parent

  • Q25530138 - registry parent class

related

  • currency - category
  • Bank of Japan - issuer
  • Japan - country
  • yuan and won - related currency names

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.yen
  • Wikidata: Q8146 (https://www.wikidata.org/wiki/Q8146)
  • ISO 4217: JPY (392) currency code

Direct properties not applicable Not applicable

Not applicable

Plane XCT: no invented physical properties.

Recognition optional Filled

  • Symbol and ISO code JPY
  • Bank of Japan notes
  • The Chinese yuan is a different currency with a related name
  • Banknotes of 1000, 2000, 5000 and 10000 yen; coins from 1 to 500 yen.

Capabilities and actions required Filled

  • identify notes and coins
  • find official exchange rate references
  • understand payment practices in Japan
  • check security features of notes

Hazards and failure modes required Filled

  • Agents giving investment or trading advice
  • Outdated exchange rates
  • Counterfeit notes

Standards and interfaces required Filled

  • ISO 4217
  • Bank of Japan Act
  • Anti-money-laundering rules for exchange

Context of use required Filled

  • Payments in Japan and international trade and finance.
  • banknotes
  • coins
  • commemorative coins
  • historical series

Sources Filled

  1. Wikidata item Q8146: yen - identity and sense of the item
  2. Wikipedia: Japanese yen - general description of the item

Open questions

  • Should note series be separate entries?
  • How should exchange rates be sourced?
  • How should historical currencies be linked?

Machine files

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-q8146/spec.json