uncooked information – Is it doable/possible for nodes to redact data (for instance inappropriate pictures) of their blockchain and stay a part of the community?

Is it doable/possible for nodes to redact data (for instance inappropriate pictures) of their blockchain and stay a part of the community?

Sidenote:

Though OP_RETURN was meant for embedding small quantities of knowledge, I imagine virtually all instances of embedding of pictures within the final 12 months use OP_FALSE OP_IF OP_ENDIF inside an in any other case regular script in a witness element. This avoids limitations imposed on OP_RETURN and positive aspects the Segwit low cost on transaction charges.

Censoring transactions:

Pruning nodes discard blocks which have been validated and whose content material is now not needed for sustaining UTXO state. It should be possible to be selective and have particular standards to discard information that’s undesirable. For Bitcoin Core I think about it’d necessitate rewriting massive blockfiles or some technique reminiscent of overwriting parts with say zeroes and updating indexes accordingly.

Not relaying unconfirmed transactions of this type has been steered. As Michael Folkson commented, massive pictures (e.g. a number of MB) already cannot be relayed by Bitcoin core nodes due to its default coverage guidelines. publishers of huge pictures should make direct preparations with miners.

Nonetheless, the above nonetheless requires that nodes obtain and validate new blocks, no matter content material, as a way to preserve UTXO state. So the objective can’t be fully achieved.

I imagine it is usually computationally infeasible for regular nodes to tell apart inappropriate pictures from acceptable pictures. Moreover, Individuals who embed such pictures can take countermeasures to forestall their detection.