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

Block 22251

Hash
0000012627219aa46dea8150dc7ca1148b5464b84283f10d5f2fcef643d5ae4e
Confirmations
20173
Time
2026-10-13 19:11:05 UTC
Median time
2026-10-13 19:03:11 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0028309697
Bits
1e01613b
Merkle root
2cf835884c42b28ec71b9e907ed14d7e9e49e6078edf3ab885a977a251fcd750
Previous block
00000107b55798a827518836c44b2282689d95f00e373b718220bc4589729323
Next block
0000007d141d3eeb825fe62382915adff23577d4333114fdc326262a94f92cae

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 22251 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
cd0ad80736206bbff1536bd452ee439c… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
2cf835884c42…77a251fcd750 coinbase1250