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

Block 25391

Hash
0000016bcc3a83fc329293e1407e89f4d2f3090f07d176dec3992a3a5e71a394
Confirmations
14672
Time
2026-10-17 09:17:36 UTC
Median time
2026-10-17 09:09:24 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
66338fad14d2d15e71834dc9bd2498ff86bb9fa0c2c9d0ca6cb47b3a6bb227d5
Previous block
0000011906b415d3abb354cfc4cd2e9909d048e8796cf0004f90c09ae7d0b548
Next block
0000000b7556f7675bb71569096a31b0d11ead8b3471e9882b3d22635ee39671

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 25391 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
7920b1d709abaf8239d819099e0f8d17… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
66338fad14d2…7b3a6bb227d5 coinbase1250