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

Block 21593

Hash
0000007fa0f0c9618749411fb87b874c1e5c233635ffeedae7962c26b4dede7a
Confirmations
19571
Time
2026-10-13 00:53:56 UTC
Median time
2026-10-13 00:45:08 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
a7c43f23a3113977dbaa00587f29304a89fe5287d15663fff217514d0233eabf
Previous block
000000b4236f1a3fa10bc6c55e69db66304e55f0e63120f4df0cea27eb227ea0
Next block
00000024487bbcbb7c0c48e5f0271f09f586dfc86e20c804255232078cd893fe

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 21593 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
8494dab865fb3a36eb5b15476b7d5093… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
a7c43f23a311…514d0233eabf coinbase1250