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

Block 40138

Hash
000001d6957f815dc408c125917d52530c6dd7f0d1cbf443a46c1a88f15ea164
Confirmations
7072
Time
2026-11-02 22:04:12 UTC
Median time
2026-11-02 21:56:26 UTC
Transactions
1
Size
2,773
Weight
10,984
Difficulty
0.0015097403
Bits
1e02965b
Merkle root
cdc6b2e8d675392b1423d87c12853e386d25ad73e49dfacaefa73ce27a6f6e8e
Previous block
0000025f69b13d229f59000d17e0e7c3fb6eed66933eaecb3d57754d484889f1
Next block
00000175328c8beb4bae3972d0a00a473f02a1c03b1141567fe7fbd4240f8ac8

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 40138 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
40d3de056a863c34b302ccce26921e50… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
cdc6b2e8d675…3ce27a6f6e8e coinbase1250