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

Block 20858

Hash
0000009623d02edc20c83fcd26f7c8d9a39c50dfdbfd5130700844285da7ea1f
Confirmations
20636
Time
2026-10-12 04:25:10 UTC
Median time
2026-10-12 04:16:47 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
38555ddc252efb6d3977a1ea59af0c5cec08341c4f45aa977e276164925f5ee0
Previous block
00000066380a949a04d174a27c76adf56ccf5cc3706a74c44b741805c05b7b4a
Next block
0000010d8fea905659e8de41ce81e2ef7a1cfb1465dab070410cccd41f44a8aa

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 20858 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
f7949217b23f428117b23230c4b1e14e… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
38555ddc252e…6164925f5ee0 coinbase1250