OP_RETURN outputs (aka datacarrier outputs or nulldata outputs) allow for the inclusion of arbitrary data in an output script (following the OP_RETURN opcode). OP_RETURN outputs are provably unspendable, so can be safely dropped from the UTXO set by a Bitcoin node. This chart tracks the total volume of data bytes stored via OP_RETURN outputs daily.

Related Charts

Cumulative BIP47 notifications

Shows the cumulative number of BIP47 notification outputs.

Cumulative OP_RETURN Data Bytes

Shows the cumulative data bytes in OP_RETURN outputs.

Cumulative Runestones (OP_RETURN)

Shows the cumulative number of Runestone related OP_RETURN outputs.

OmniLayer (OP_RETURN)

Shows the daily number of OmniLayer OP_RETURN outputs.