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

Block 39516

Hash
0000008440565d13089dd1a6bb1a5920f4aaaf3cc333f8777a523f91c3e1858b
Confirmations
1895
Time
2026-11-02 05:38:21 UTC
Median time
2026-11-02 05:30:27 UTC
Transactions
1
Size
2,773
Weight
10,984
Difficulty
0.0015097403
Bits
1e02965b
Merkle root
dda70ee6f03a1ff3c7de99f6fe0d813779b7c79032790d939d7aa41fff2d50ef
Previous block
000001b4b5255d3a5df29c715502b7a3fe4860ff01161b648f5fe90aec8a809e
Next block
0000004132bf649d5358ae377460dafe7550102607e9dcd459b565ba0998b5c7

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 39516 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
88a63c85bc9a0154aac0c8305bd6dc35… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
dda70ee6f03a…a41fff2d50ef coinbase1250