Schema v1

Catalog Entry

Announces an item for sale on-chain. Discoverable by any MAP-aware indexer.

protocol	MAP
prefix	1PuQa7K62MiKCtssSLKy1kh56WWU7MtUR5
app	qart
type	catalog_entry_v1

Fields

Name	Type	Required	Description
app	string	yes	Application identifier. Always "qart".
type	string	yes	Schema type tag. Always "catalog_entry_v1".
item_id	string	yes	Unique item identifier from the issuing marketplace.
title	string	yes	Human-readable item name.
price_sats	integer	yes	Price in satoshis.
merchant_pubkey	hex	yes	Compressed public key of the selling merchant.
timestamp	integer	yes	Unix timestamp of listing creation.
currency	string	no	Currency code if not BSV (e.g. "MNEE").
description	string	no	Item description text.
image_url	uri	no	URL to the item image.
category	string	no	Item category or tag.

Wire format

OP_FALSE OP_RETURN
  1PuQa7K62MiKCtssSLKy1kh56WWU7MtUR5
  SET
  app        qart
  type       catalog_entry_v1
  item_id    <uuid>
  title      <string>
  price_sats <integer>
  merchant_pubkey <hex>
  timestamp  <unix_ts>
  [currency  <string>]
  [description <string>]
  [image_url <uri>]
  [category  <string>]

Producers

Qart — Qart.Protocol.Encoder.encode(%CatalogEntry{})

Consumers

Bitblocks — MapParser indexes catalog entries by merchant pubkey