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

Block 25519

Hash
0000011d3211e1bcd60c26cf1026f866007d1a481fc61a26061b28ebc5f57973
Confirmations
16502
Time
2026-10-17 12:49:33 UTC
Median time
2026-10-17 12:41:43 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
e55f3e5bb353489e102990eca299e1e72a8995a47b92ff80eb798e5709574e5b
Previous block
0000011fd330e20c4368ec77e6ebcf692a632db553f815770718be90906eda2e
Next block
00000080466748fc8099db0072f5c8738e73ecf7503202e7f960788a4867e3e5

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 25519 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
5cb6c676d4cebf3441fd729844d028b6… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
e55f3e5bb353…8e5709574e5b coinbase1250