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

Block 40187

Hash
000002038fbda0fdb40aa67aff507f057bbcd490e64f00890edf42eac7512b14
Confirmations
7498
Time
2026-11-02 23:22:21 UTC
Median time
2026-11-02 23:14:27 UTC
Transactions
1
Size
2,773
Weight
10,984
Difficulty
0.0015097403
Bits
1e02965b
Merkle root
6c7795ced1fa0846dabd3bcca91b3ffeb5699dec738dc40c5d3d73fb78e824c2
Previous block
0000002acb2e6fbacf16e2272d2190740f364b1f4eebf82f61d96e46a3c78072
Next block
0000009d4565da03d3741fa255fa31c1ccf09bf80efb8686f1f27283576333b4

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 40187 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
3b6dd2c66911012b1f51dae64b73b10c… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
6c7795ced1fa…73fb78e824c2 coinbase1250