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

Block 20578

Hash
0000004b2c3c818c4ef276927fc677cb1cc4ab6c3ce839430319cd2ca1be0d35
Confirmations
21614
Time
2026-10-11 20:42:45 UTC
Median time
2026-10-11 20:34:59 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
ecf25f70d42fee3e265c5478a51fa4d897ed5df36df02f5127e9c0e903cd056f
Previous block
000000f2006f2a1b2d93c32f957d6aa4640b7de43004513321d204295b26c619
Next block
000000241df40f8121200de48e9171c678cd1d5592c6a4b396396d426c127fe2

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 20578 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
c13f212e0fdd83553f7ae703d24f4c03… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
ecf25f70d42f…c0e903cd056f coinbase1250