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

Block 21230

Hash
000000b2f7a2611c9ab92bd4a01c5c163d11c005616fd51317148ddb558cec53
Confirmations
19984
Time
2026-10-12 14:43:10 UTC
Median time
2026-10-12 14:34:20 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
ad360a6d0bb767e812914743da51ef216b87ec003253c56d183bb17bbb174881
Previous block
0000006fd92ad21dfae8224a2253e9591c9557497be7aceab6ee254ec0657dfb
Next block
000000fbc2dbe3cc1cf1d11c3c318461b148fccc0f064d5cbf07d17c28bf016c

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 21230 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
b511be5fdea3d2c6e270f8add5d4a474… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
ad360a6d0bb7…b17bbb174881 coinbase1250