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

Block 20666

Hash
000000fd42ff8ca87e9fee5c6ee3ba35fd46b2a11ca50b0a99961152b1c62457
Confirmations
21444
Time
2026-10-11 23:06:23 UTC
Median time
2026-10-11 22:58:09 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
a1d2dad36a2104902763645b656bf2ce087f0c7614ac1268101f4ce76a77fff9
Previous block
0000004cfd652a87a4625b5e4224f3d2b84d2c98d2d6623a0e9279ba81a46c2e
Next block
000001090c38b3b72370d428ae0d19b9b080e5b5912a69ce9d42a37bbb477a4a

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 20666 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
83508978a11aa24048922c31da69ed9e… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
a1d2dad36a21…4ce76a77fff9 coinbase1250