Ark-0
Ark-0 is a test network for trying things out. It may be reset at any time.

Block 20838

Hash
0000012ca80e6846ad4f1d94a2f6b6f3a4c04b4a65aca1a66b11dc7639a62a09
Confirmations
20698
Time
2026-10-12 03:51:34 UTC
Median time
2026-10-12 03:43:05 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
aa4a4ff562f47d6425b87fa771741e3699f21f4d6ef5ff65c11165f0acf3936c
Previous block
000000b5da2131fa9b456e31efb84bc63a6acc95f5b5d92871b1abd04bd62de3
Next block
0000008360a893be14b8a8213ee704675416418cd36593d0fea8f37507c7dff6

ML-DSA-44 block signature (M2)

M2 is an experimental rule of this test network. From a height set in its build, a node that enforces M2 accepts a block only if, besides the classical signet signature, the block carries a valid ML-DSA-44 signature by the Ark-0 block key, in its coinbase's witness commitment output. This page shows that signature; it does not check it.

Block 20838 is at or above the activation height 20000: nodes that enforce M2 accept a block there only with a valid ML-DSA-44 block signature.

The node behind this site enforces M2 and holds this block, so its block signature passed the node's check.

Status
In the form M2 requires, followed by the signet solution push (the classical signature)
Signature
184ef2eba0a695d944ef194d966f9374… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
aa4a4ff562f4…65f0acf3936c coinbase1250