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

Block 22117

Hash
000000d250732340c03f8128cf31f85600138c47e61d066186eba9bd325219ac
Confirmations
19673
Time
2026-10-13 15:28:20 UTC
Median time
2026-10-13 15:20:11 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
67467db1d4fd827aeb7b87187be6ddd45bca3f6adcce6137d349aae0684aa46e
Previous block
000000a09b9e710d6ba1d689be861bf919c7e77681a8af6657c1a59320e169dd
Next block
00000137dd1ee01cf4601a94d2f082482f42290369ddadc342d0d3ea6c576b10

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 22117 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
32f1a7d5acd2cc481df6d96d5d0ba8f2… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
67467db1d4fd…aae0684aa46e coinbase1250