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

Block 25845

Hash
00000057474cc2ca3bb88e0c6bb5f9245fa6f21acd0e9a98af545489693442f0
Confirmations
16212
Time
2026-10-17 21:39:56 UTC
Median time
2026-10-17 21:31:50 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
862e5918db9ac6efb831091dd2bb0beb311c6c393c362ea921f130c6548c72a8
Previous block
00000019d2a640d315f549f97e9a9ee96c479692dbce704ce93e03ecd77b5fbc
Next block
000000c5b2c7806ba2f8189623258e4b0dc81795bdc60d86a4bc214127482e89

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 25845 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
83ce9a2307f1e335db9e439026a83c55… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
862e5918db9a…30c6548c72a8 coinbase1250