Timestamp any digital content on the BitCoin blockchain. It will provide you with a cryptographic proof that the digital item existed, EXACTLY in that state on or before the timestamp.


OpenTimeStamp will not work without centralized DNS. It will work without central servers. User accounts are self-hosted, meaning the user is in full control. It's unknown or is not applicable if OpenTimeStamp supports cryptocurrency monetization.

DNS Servers User Accounts Crypto Monetization

  = unknown or n/a    = Decentralized    = Centralized

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