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

Block 20555

Hash
000000fd1f4df5fa7f19eb49681fb97790c2edf1e77aee024e2f80cbd9933465
Confirmations
21727
Time
2026-10-11 20:05:44 UTC
Median time
2026-10-11 19:57:29 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
174c38c5e7649da4030384e419cb16e3f48838e56a53610165c2febdf4c656da
Previous block
0000000a6c7bf11610f2e2501fc9c0f8957fd7120fabf013426d20349e62df12
Next block
000000f9bab3cfccc0aeefa552177809e6c24a489195371453c2853ae0a3dfce

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 20555 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
9b69e06a0983ae78d150c539b519ce6d… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
174c38c5e764…febdf4c656da coinbase1250