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

Block 21218

Hash
0000009dc997b66e9b0532ed5b5f1bb79a18ea3d894a24fe195caaef95652d95
Confirmations
19975
Time
2026-10-12 14:23:10 UTC
Median time
2026-10-12 14:14:51 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
afdae71f5750631bb8e51e13e9d8d8262733282ffc973688e55f11edf65e128f
Previous block
000000943ebc6ca93508a4335e8df32a66b3ebeb95855f2ae582a4a488cb751e
Next block
000000807b80e3c7481e4c3d7ab5386a1f37a60e7045fb7a549caebb7da85e64

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 21218 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
46478991b713168beb2f2cbc49135e24… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
afdae71f5750…11edf65e128f coinbase1250