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

Block 25558

Hash
0000005002b57e09b4f6809f001d43bfea9a7c2fece1cb7800f30723a65e5e88
Confirmations
16765
Time
2026-10-17 13:53:05 UTC
Median time
2026-10-17 13:45:13 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
564e528826b856a63112589662242e4e7b5bb5ae84302bc1f42a52209ef0993f
Previous block
0000009a65dfc6331b90677d2fc3b03664c4095e7825920caaa075005003f0d6
Next block
00000099f9dd984e7597048788b3ef128840ea9007d728c3026ab00a3a716930

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 25558 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
37cd71e99c2532aec8cbe2172a26ee89… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
564e528826b8…52209ef0993f coinbase1250