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

Block 21724

Hash
0000008e9436e74c00e4d5d2aa826353e27d7b061058674ff3bd080b02673753
Confirmations
20015
Time
2026-10-13 04:34:36 UTC
Median time
2026-10-13 04:25:58 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
a11e3ed9e261393375db4cf5593147f2197e93a038c6b0ab13568dddcbf1845b
Previous block
000000f9bdf1b4058a55d36b86c34410e20595ab4dd3cc041c24037e544256c3
Next block
0000004a1deeaf20e761e7dd5f36e5111061d2773bd3bc052eb8c45d28a81829

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 21724 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
ed8cc53aa0bf97117f49914fbcd1c6f3… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
a11e3ed9e261…8dddcbf1845b coinbase1250