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

Block 25504

Hash
000000d4831e5352f4e194461b18bba8cb54560689cbffdd6c01c30cf1de04be
Confirmations
15372
Time
2026-10-17 12:25:29 UTC
Median time
2026-10-17 12:17:14 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
d2c7993cd8fc8b151ac49b40c912323bf0576d79d522f5696e4fc12a6582265e
Previous block
0000004a79866aaa5a5eea23545754ec3296af081fbe344d7d41ec15977f3892
Next block
000000a456ca821a230306e52595cec5df6c0d9921911efdec52698496add69a

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 25504 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
6ee270e6449df03aa15e8869ed90b874… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
d2c7993cd8fc…c12a6582265e coinbase1250