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

Block 19211

Hash
00000014b1829114f6c7ee5899d25eeed7aff6d777507909d9aeaed9091a2f58
Confirmations
22349
Time
2026-10-10 06:39:15 UTC
Median time
2026-10-10 06:30:21 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
3d61704ac8ef8a114eeb386ee58504daad8bfeaa78ce7de084cb86c0b3930ddd
Previous block
000000bf7d6616b69184e1ee1520a39bfaeb5ab6077cce54002fff636a65a7b1
Next block
000000cbcfc71d719298114d4ef15356d2784ebe0cdf63bf99c75f3c32186bba

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 19211 is below the activation height 20000: nodes do not require this signature, and only log the result of checking it when run with -debug=validation. The block producer adds it from height 18000 on, so that nodes can check it before it is required.

Status
In the form M2 requires, followed by the signet solution push (the classical signature)
Signature
bbd5cabf4577017987e2ad0284e80c55… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
3d61704ac8ef…86c0b3930ddd coinbase1250