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

Block 21420

Hash
000000bab0baec746ea44210f9b8e06bc1e38524446e94c5934954e4951d733a
Confirmations
20798
Time
2026-10-12 20:04:49 UTC
Median time
2026-10-12 19:56:32 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
140db702382726cbd3d5304d61ba39b5bb32f502972bf4d9b5865582a51772cb
Previous block
0000010f834a6242a64658c769cb47791ca8533c68e62bff2ac6b2c6a5727221
Next block
000000a843bb145cea4d923d748c70be2684ab95ca060bfa41f980b4783120a4

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 21420 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
9bb93e3ba4e9a8b43c633d7c6380ec47… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
140db7023827…5582a51772cb coinbase1250