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

Block 25839

Hash
000001843a9eb1e3802890015b204ec455f944eb5fada79003fa551f7d9ba53d
Confirmations
16272
Time
2026-10-17 21:30:18 UTC
Median time
2026-10-17 21:22:03 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
1a6a65f99a870d32ff1acd4f8f0eeed8c3ccf0cd3859af28837dcf2d22978ebb
Previous block
0000003b6e8a8f194aa96a103128cdedb395935d6d547ffc29b547865ab37c06
Next block
000000ad2f2d9a5aeb145414dd117dd300ecadcb3a6e448b61d0e2a18c250f74

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 25839 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
3d1cffa90d5c1a4bb2ca9fa28f91b402… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
1a6a65f99a87…cf2d22978ebb coinbase1250