According to onchain metrics, Ark Invest’s holdings in its spot bitcoin exchange-traded fund (ETF) include several inscriptions, among them an Ordinal inscription from the “Bitcoin Puppet” digital collectible series, valued at $ 27,900. Similarly, Blackrock’s IBIT possesses an Ordinal inscription from the “Speculum Aeternum” non-fungible token (NFT) collection. Spot Bitcoin ETFs Are Holding Unique …