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

Block 25844

Hash
00000019d2a640d315f549f97e9a9ee96c479692dbce704ce93e03ecd77b5fbc
Confirmations
16228
Time
2026-10-17 21:38:20 UTC
Median time
2026-10-17 21:30:18 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
5e5e86678d7ab0d2a4fbdd2b71fba4b731e26c54d782ed1de5efa3283b9aac0b
Previous block
0000007977d45faf8167a32271ac53e39878b913168e0db2edf74d404807fa37
Next block
00000057474cc2ca3bb88e0c6bb5f9245fa6f21acd0e9a98af545489693442f0

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 25844 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
0a83185e822662efc996344e2e415a41… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
5e5e86678d7a…a3283b9aac0b coinbase1250