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

Block 25587

Hash
00000135c60d6fbe2c4fdb82eb7bf88a196af3a8eaca505be5f0bd92bf04dfcf
Confirmations
16617
Time
2026-10-17 14:40:22 UTC
Median time
2026-10-17 14:32:18 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
2ab22bfaea565da4570e06584b8025c5074267116306607a16e6a1527fcf5f36
Previous block
000000bbe6feb31c513a2e312035294f5d16345ab5e3a136b830c88c4e1eb104
Next block
00000025e04210f4cbbcfca78bce35e2efe4e2f78b82c9fa2ba3a30bc0483e85

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 25587 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
7de4a9eeb7c1456476453f82d619ef09… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
2ab22bfaea56…a1527fcf5f36 coinbase1250