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

Block 25505

Hash
000000a456ca821a230306e52595cec5df6c0d9921911efdec52698496add69a
Confirmations
15626
Time
2026-10-17 12:27:07 UTC
Median time
2026-10-17 12:19:01 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
1f44c2decb68cde4eda3800b31ea1948db8bf69020aa17469c377208294aa502
Previous block
000000d4831e5352f4e194461b18bba8cb54560689cbffdd6c01c30cf1de04be
Next block
0000015f1462858226d5f6f897d6e731e0af8ec479e7d8112aeec6722d7fde3f

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 25505 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
1310c4e141c263554fedbe75dd52ff4d… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
1f44c2decb68…7208294aa502 coinbase1250