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

Block 21941

Hash
0000011a97eb6ad88d92e65425edad86b3ae0730b465fec0d1e4072dc1995080
Confirmations
20858
Time
2026-10-13 10:36:31 UTC
Median time
2026-10-13 10:28:04 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
e30749f21933210b80ea63e08971a006d30e38ab87e1910d410a460e65870df0
Previous block
000000f387e732f5b17c890f4289cf929d26baac40083835b241b9ae247c9835
Next block
000000a97edd997a7026889e9223e4207fd4da675b73a0284c6c690308063a4f

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 21941 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
1c28c864d6f7c936f4db77b95239f6c0… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
e30749f21933…460e65870df0 coinbase1250