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

Block 21312

Hash
000000eb1c3006ffcedefad69ba21b80dceaec01accc5173cd5312e0aa157ff9
Confirmations
19764
Time
2026-10-12 17:04:22 UTC
Median time
2026-10-12 16:55:35 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
53218f9ca84e2d84d6b119f5814ac3680543ec62f1721abf3848501592642485
Previous block
000000145652dfa0ca6b0718c62d5a5358071d114e4595b9b07bfd0584cfe763
Next block
0000001aabc2a5421ca86699c53f74a1812f32e3b154ccdcbf68f6215f6a4b8a

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 21312 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
df47525428ac284c65e87ce59da5281e… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
53218f9ca84e…501592642485 coinbase1250