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

Block 25541

Hash
00000139644bb5a9a40140f9f5b84fe56aba3b8e8313dc63fce77bdc0e479b7b
Confirmations
16728
Time
2026-10-17 13:26:12 UTC
Median time
2026-10-17 13:17:40 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
1f616f4e4c0fc32c2614eb5253ec4ece90b36387e0134e5154877e7ccf745ff6
Previous block
000000f5d4426806808175a97510b9b4da2e1cddb89078ff33cef3c2c517d1e1
Next block
00000064f7f6f77c1aafe67a080462e089abbb228fdc6b2ab9a67e8b440212ac

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 25541 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
5f6961656400345758afb8ea5359fbc4… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
1f616f4e4c0f…7e7ccf745ff6 coinbase1250