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

Block 21038

Hash
00000108ebaea7648815c89b2178e5514d55923c12815ac0012608da4224ff45
Confirmations
20934
Time
2026-10-12 09:24:06 UTC
Median time
2026-10-12 09:15:57 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
885160ebe32ba359b7e4a2e90156c79250d629b5853529ab55771a8fc4f00e20
Previous block
000000f6e3edcb328695d8d10412860d775e22baaeee99af2529bd4a0c4c4802
Next block
000000059a016773693ed7722d59bcee0d79993f50676b8e37072dd98742b0a6

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 21038 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
3642d0917a1352919f55ec92c1d704ba… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
885160ebe32b…1a8fc4f00e20 coinbase1250