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

Block 19231

Hash
000000525ce8521c5a5ec9497ae519688d625e001147b2baba81dd4c4a7c19a0
Confirmations
22863
Time
2026-10-10 07:13:09 UTC
Median time
2026-10-10 07:05:04 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
b76afee36e1dbed369770d09b446fd9024de17c08cb57b9e33a84e16dbd5b195
Previous block
000000c72c1671d2e87988d219c6aac58def44084e787d14de8dfce581da8a6e
Next block
0000008ef52093ee9dea828212f501981c237c8c412408aeaaf2cd8c779d2058

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 19231 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
fc143c47326aa3a06b539bbd63d718ad… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
b76afee36e1d…4e16dbd5b195 coinbase1250