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

Block 20625

Hash
0000001b2b326ba228034a2efe9361127b954d314d1571572b6a03463584f57d
Confirmations
20401
Time
2026-10-11 21:59:53 UTC
Median time
2026-10-11 21:51:57 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
609fbc8bf04d1153f1baeaa6b8b1165a54bf52a1dae5d6874a396ffe6b1b415f
Previous block
000000e22481c81d298bc6530d1f3960f34220cba48bacdd2bf7caa8c79ec941
Next block
00000049c49f7ffd7b0c65af6f072ff30f1751910d19b33bbd9f31f1a9ce560b

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 20625 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
9fc788d2c8b6c5b6a9a63e845751b16c… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
609fbc8bf04d…6ffe6b1b415f coinbase1250