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

Block 20968

Hash
000000b4a0e2d30b4eca6c9d71f4ae032106e06fbc653bf960e358e17ad849ff
Confirmations
21009
Time
2026-10-12 07:29:18 UTC
Median time
2026-10-12 07:21:14 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
7cd81939a555713815da23b39daa5e6fd90d1ea8db732f5db8b8bd15527235ba
Previous block
000000c16b9ef305979f65dd6e87d7389eda0d21381c0d8f371f08ca41d01b6f
Next block
000000c12ce355788b08292c9637f30f2b3278b0563582c5be246f5276d32ddb

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 20968 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
f2a63be217096dddb7dfbf79be358e99… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
7cd81939a555…bd15527235ba coinbase1250