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

Block 25989

Hash
00000138cda5e596aba4cbf03edd615edba54564d40a5f35fe4d3e3f094383ea
Confirmations
16433
Time
2026-10-18 01:33:47 UTC
Median time
2026-10-18 01:25:41 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
abc8c7f98f50e0a3416085f09881cbf6110a2c5da5d97f8c7cac081ae2009b18
Previous block
00000103c80042304d678421c2143158d1a7dc757d965de607a81a7302fabab3
Next block
000000dd6d5d14f56644e062a9edd4b34032824075456eb75d8b7fc976f464f9

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 25989 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
4498c911aa5544e205a630ecb11a9550… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
abc8c7f98f50…081ae2009b18 coinbase1250