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

Block 25280

Hash
0000009c63fe40fd3ee3f3a771ac213c7490e6f624642d6c73176e0bd5bb5253
Confirmations
16041
Time
2026-10-17 06:14:43 UTC
Median time
2026-10-17 06:07:02 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
7c8f89a754b24cd01740acb850a9100bb60a04212d4bcfabec634209b462a87d
Previous block
000000cb9e6f14f3b45f0256a2a4b7070da7d19ed7529c00e1f89544e1c4ac3d
Next block
000000cc23a0386ba318666c53e11f2507eeb110b6b6527ce5e7d46299eafaba

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 25280 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
97de16ced473a414467c6a241ea2ba67… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
7c8f89a754b2…4209b462a87d coinbase1250