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

Block 20664

Hash
0000003aed44e02f51315dca4b81d4c4d4322dd828c7d1bdfcd3b4873328f870
Confirmations
21402
Time
2026-10-11 23:03:14 UTC
Median time
2026-10-11 22:54:58 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
5d144753e0738354e325a945be3e14ca0b46e39f32683baea06f294769a80120
Previous block
00000039e183d76300b9df212e2413249d3bb910b25c268263ae3b7189561f9d
Next block
0000004cfd652a87a4625b5e4224f3d2b84d2c98d2d6623a0e9279ba81a46c2e

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 20664 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
02e5825c80ac50c393d6c888be5dca0f… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
5d144753e073…294769a80120 coinbase1250