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

Block 25191

Hash
0000010d7ea215a403ec6ffa41231909f462685c96e4690f864a0d515226c2e9
Confirmations
15358
Time
2026-10-17 03:50:17 UTC
Median time
2026-10-17 03:41:57 UTC
Transactions
3
Size
3,182
Weight
12,212
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
7c29898645bbeeda60a4949c85e3fc58ed406749ceaa78eeacf4181c6d883cc5
Previous block
000000e08554d478ec2e0ca74a981ff6d35a0c639811358aa6a06308fac4b17c
Next block
000000c1ca78097fb692bf823bfa0deb89e3a2ab7b3b27cbf3785faffaf73ba0

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 25191 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
cbf0308f1aad616a0a39d0d8c968bd8c… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
f6544f1d65ae…c51a66d0b03c coinbase1250.0000062
9513e39d6889…e709d66a3384 pays to P2MR121.467686890.0000031
5a4130f5de3e…00f7d9fa66df pays to P2MR129.99987270.0000031