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

Block 21796

Hash
00000101b94820e0d09558f550cfeaf0f0a5f6083be15e7021672e98b82bfeaf
Confirmations
20250
Time
2026-10-13 06:34:51 UTC
Median time
2026-10-13 06:26:48 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
f5979e45eddbe0886b8e228dcd5da145031503c970fb956706facdd7f8d49d0d
Previous block
000000b6509f166da4e11291df20bfbe7ed92e928730845486c7c36ccc2afe51
Next block
000000ed33698e1f7aadfa955a533b97b16002785e053e408f4be6112a98af42

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 21796 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
d4e666e5aaa4185d52f6a452e0f75f0b… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
f5979e45eddb…cdd7f8d49d0d coinbase1250