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

Block 25800

Hash
0000004eb92240ef094b44fcdcc82060dbc2dfc7545337d8beb0655da1c2a58c
Confirmations
16666
Time
2026-10-17 20:27:40 UTC
Median time
2026-10-17 20:19:44 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
a5e5ef6623ab0abdce3462ad3c9f678952a4f15eca15744a629a750cb94243c7
Previous block
00000123976be3c29e75427ded56ce6cb06f40b65177bb8f1808d37a694b94e7
Next block
0000012014ebd4d0e3019d8c2d3eac8f84bdcfcdf6df32c3558711d763b34fb3

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 25800 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
c0abb4d6272de42e139508233ee0310a… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
a5e5ef6623ab…750cb94243c7 coinbase1250