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

Block 21933

Hash
0000011b24526fc601ccbe6adc64143c11f813d986aab99ce522b7ef335d940d
Confirmations
18621
Time
2026-10-13 10:22:44 UTC
Median time
2026-10-13 10:14:54 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
3f13945b4d43ff3b382a4ee718895cb85e420840a741ce7344567d6acd5b7f04
Previous block
0000008a68db0fff44c89e96db4f1df2e707a6d9b34c5a9004c89a73ea38bdf1
Next block
0000012a726c5ee902313f14b0d4df3921ceb358a6608dfeb9c2e63dae3d032b

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 21933 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
af352f6a51e4df2c278e5a45f068a691… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
3f13945b4d43…7d6acd5b7f04 coinbase1250