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

Block 19381

Hash
000000af6c51bcdaf94dc7f37cf46a9c683f16dcdf06cdffef1e0c3646cfc9f9
Confirmations
21310
Time
2026-10-10 11:24:02 UTC
Median time
2026-10-10 11:15:35 UTC
Transactions
1
Size
2,771
Weight
10,976
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
b2bee4f55224d8ee614edd5084593d0888cafc1f544acc7b6b8975558cff8db6
Previous block
0000006002c0bb4d964ffae612a50a603bd6e6ef4d5b92d6e10d74714b0c6fc9
Next block
0000004342a062a2ddf99be933e35f0cc432ddad47b243737ec886f8c2561d1a

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 19381 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
463dcd76e9993dc482a5fdaf11605104… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
b2bee4f55224…75558cff8db6 coinbase1250