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

Block 21454

Hash
0000001efd33cb41db8c431ca0da36a66d5d36ebcbf276dafacc3e9039b5c1ae
Confirmations
20196
Time
2026-10-12 21:02:13 UTC
Median time
2026-10-12 20:53:48 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
8a446b3426e34c313de4308241a700738638f0d7e20c34c653aea17df8863bcf
Previous block
000000d3748afcceebb0650488680c8cda079085f7f5473e03ab91bd17408684
Next block
0000008465788ac075610811ed47df5449be7adf4378e72ca95c1ce28165080f

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 21454 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
ea29bc536e16ab35c85320a3e7725198… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
8a446b3426e3…a17df8863bcf coinbase1250