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

Block 22640

Hash
000000257ccbc2350edf455ea1a29c64fc3ad23d14a0368c2c8028e9f858162d
Confirmations
19311
Time
2026-10-14 05:49:34 UTC
Median time
2026-10-14 05:41:30 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0028309697
Bits
1e01613b
Merkle root
ec70cd708ec7dfa3902306bef946392aec06f2316f558bf24f23472d3ef8c6c6
Previous block
0000011f16886a7ca78b8a74bb500dd4df6479f80ba0a2e7668e090dfbab2817
Next block
000000d20d9d921a3debb27d812e467fec1834f71ecf406a4a359736ba5179a7

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 22640 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
e4de76913913fe228dff8a3b69f0b009… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
ec70cd708ec7…472d3ef8c6c6 coinbase1250