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

Block 25691

Hash
000000101c74dc70f7ad33dfe590445a6cab56076e0e6546ee5541fac84802bf
Confirmations
16532
Time
2026-10-17 17:30:41 UTC
Median time
2026-10-17 17:22:46 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
4b7c8e1b05e874dd7c9a236bf30c661a7bb87cc47048aba80fbb640b71e65560
Previous block
0000009df26390f36069d7f0d9d349d2a9a91e220bf82884de8c04893543c426
Next block
0000011cacba4db060925d7c96d6246722de514d7ae3d98ae8864c231e27c122

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 25691 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
4519221b015c38de6c02f1611f8622bd… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
4b7c8e1b05e8…640b71e65560 coinbase1250