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

Block 20423

Hash
000000287c986a92af998105848623302bad9e97c32949013a2e3855c1685e32
Confirmations
20981
Time
2026-10-11 16:27:11 UTC
Median time
2026-10-11 16:19:18 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
0c90a81fa1906b95d6d1e4f8a743da532952af43723784afd3a92d7c79cc9d5d
Previous block
0000009d9f2a575d176bcbf7908aaf7c9cd6d0cd8970ecb2c274b17141e2295c
Next block
00000004a49da4ad4d26e5929406d281e3177b02e685bafe53fb10e243f5e3d9

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 20423 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
b904e38f85af2ad996c777fde4922544… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
0c90a81fa190…2d7c79cc9d5d coinbase1250