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

Block 21198

Hash
000000b82a65bd4b1239defe319f51e529e2ed40315c8c385e536f82a4baa809
Confirmations
20193
Time
2026-10-12 13:49:48 UTC
Median time
2026-10-12 13:41:45 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
dceff1a83307ea8d8476e9971f4760307c17dc5e191ea7e05fc01705174f115b
Previous block
000000a2b9f3199b70a450c8afbbbb677e49f90155e500e51c3e4e96b27d93b3
Next block
000000a2360e31123d3460ba44881a3db7717c9e94a244eac9ead590670e7da2

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 21198 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
0af8339bd2dc0e9dfa204617f392ef08… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
dceff1a83307…1705174f115b coinbase1250