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

Block 20190

Hash
000000448f7cee7fa26c0d83fc1a92be3876aad3598fa3b8fed17641614dc248
Confirmations
20974
Time
2026-10-11 10:01:39 UTC
Median time
2026-10-11 09:53:52 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
fa95412dc36e106fb5e27edbd533e0310bb5d75aba22b73b9c221cafad6748da
Previous block
0000004fc56d575aa6ec3f054a75cd89f48cd5847e15957d01f64e4c77b93b89
Next block
00000011c657b8bfa943c7b5613c467fa8e5e4f4dbb6e52c697c6d809616a4fc

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 20190 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
958db4f0a35e241cf1bf790f087f3d5f… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
877201ae22d3…51111d5f9446 coinbase1250.0000031
0ec651af2365…04dd929ea6cf pays to P2MR1230.99993780.0000031