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Object ID

  • The Object ID is a 320-bit value consisting of the Object Size (uint64) followed by the Object Hash (SHA256).
  • The Object Size is the size of the object encoded using the Binary Encoding.
  • The Object Hash is the SHA256 hash of the object encoded using the Binary Encoding.
  • The Object ID is calculated by:
    • encoding the 320-bit value using zBase32 with character set "ybndrfg8ejkmcpqxot1uwisza345h769"
    • removing the leading "y"s from the string
    • adding a "data1" prefix
  • The Object Hash of an Empty Object is the SHA256 hash of an empty byte buffer.