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

Block 22160

Hash
0000009e7ce7754cce3454939398c8189a8fb50fde170b1cd244c9c5501dacc1
Confirmations
19691
Time
2026-10-13 16:41:24 UTC
Median time
2026-10-13 16:32:53 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
b335d0793cb3675edfc7612c68e8d446cfbf1879bbddbe0e9feeefb28c02cb17
Previous block
00000107897d2e8ba95de0211c70deb3d3792f4dcaca6f99434d04846d391eef
Next block
0000009f38ae727126a4f77e40091ba5780d3ea3c85369821dd49ce81ee61c68

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 22160 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
c2c9c0fc3733553c80760ff40c139756… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
b335d0793cb3…efb28c02cb17 coinbase1250