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

Block 25742

Hash
0000005c2a1edd251e754ccd8398b8ac83ccf456834126186d61286be63ce644
Confirmations
16693
Time
2026-10-17 18:53:12 UTC
Median time
2026-10-17 18:45:11 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
904bfb2494f3c07150f620e4ed9a81a23aef5b40490e50864013669d81f4afd0
Previous block
00000132bb5defa6b9ee42e6f320b4685ab7638da4709016555847f43753d49e
Next block
000000e3c83a495f743883a99e4c2e6a5aaeadba4bab445d62d3bcdc4370835c

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 25742 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
f734e4c81ab599b6c16c2c1e257d149b… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
904bfb2494f3…669d81f4afd0 coinbase1250