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

Block 25678

Hash
000000572fbe042574e1b3dc00c5edc0420bb6ccfe1dad27ae3dd4fea3a77c7c
Confirmations
16418
Time
2026-10-17 17:09:16 UTC
Median time
2026-10-17 17:01:11 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
20f7aaeaced10a890eba7fa2a3223c3aee862e8aae5293d18018fb1bba4e3204
Previous block
000000fcbf8279a2f36f2fa9212b42646adf54f93e6c9ac3d68d9ccd1102267d
Next block
000000574992a97559dc4f16887936f6183cfe10c5b72fa661be6913c0bea2b9

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 25678 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
5cf943c57e79b503167e455f300044ea… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
20f7aaeaced1…fb1bba4e3204 coinbase1250