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

Block 21057

Hash
0000006a94207624cf0d7eb586874726a5c5d003cb1942fc8ec58ee4af99baa2
Confirmations
20073
Time
2026-10-12 09:56:29 UTC
Median time
2026-10-12 09:48:19 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
f33d22ef462079a518e344ae2c32b599c1e5a58548dd2edb83d70fcf58dbeacf
Previous block
0000000db7ebfc7a8c742c9ab9293b12ee82183e138417b0cf5f2afc1afc34dd
Next block
000000ba76292056ab9f842c9f9571937d15943a767b6f20cd637e23f05be938

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 21057 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
8f48e9168b583cad70200babb54c4a7d… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
f33d22ef4620…0fcf58dbeacf coinbase1250