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

Block 20388

Hash
0000006b38e8b7948b62e840cfb4fb57abcabc2e91c8c9132dd9234109375057
Confirmations
21320
Time
2026-10-11 15:30:17 UTC
Median time
2026-10-11 15:22:20 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
b584efe4d52242bda4a1d63b20a95a0ef0b36607b5967574cc3f8efebef9623b
Previous block
000000781b100d0b4684f054ceb1dc96e39b3c4ec4d3e9b639ad513dc2d11bce
Next block
0000001edda946aed2f4992339c3063d37d75762e99b560fe4917c486fd2a2d3

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 20388 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
6925014311d80fa6a1be7c7bc90c9444… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
b584efe4d522…8efebef9623b coinbase1250