Namecoin (Abbreviation: NMC; sign: \mathbb{N}) is a cryptocurrency originally forked from bitcoin software. It uses proof-of-work algorithm. Like bitcoin, it is limited to 21 million coins.
via Wikipedia infobox
{{Infobox cryptocurrency | currency_name = Namecoin | image_1 = Namecoin logo.svg | image_2 = | image_background_1 = | image_background_2 = | image_width_1 = | alt1 = Namecoin Logo | image_width_2 = | alt2 = | image_title_1 = | image_title_2 = | superunit_name_1 = | subunit_ratio_1 = | subunit_ratio_2 = | subunit_ratio_3 = | subunit_name_1 = millinamecoin | subunit_name_2 = micronamecoin | subunit_name_3 = swartz | symbol = \mathbb{N} | alt_symbol_title_1 = | alt_symbol_1 = | ticker_symbol = NMC | previous_names = | nickname = | plural = namecoins | coin_definition = | white_paper = | implementations = | initial_release_version = | initial_release_date = | code_repository = https://github.com/namecoin/namecoin-core | status = Active | latest_release_version = 0.21.0 | latest_release_date = | forked_from = Bitcoin | programming_languages = | operating_system = | author = Vincent Durham | developer = | source_model = | license = | website = www.namecoin.org | block_explorer =
| ledger_start = | hash_function = SHA-256 | issuance = | timestamping = Proof-of-work (merged mining) | block_time = 10 minutes | block_reward = | circulating_supply = | supply_limit = \mathbb{N}21,000,000 | exchange_rate = | market_cap = | footnotes = }}
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).