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

Block 21338

Hash
00000134287002020481e4a56cacf77071deeaa4ed8faaf7331c581a58a5e778
Confirmations
19706
Time
2026-10-12 17:48:46 UTC
Median time
2026-10-12 17:40:24 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
2432b93e94fcb24b9da1a029d36f06612af6e8126f786e8add6ca58e993816aa
Previous block
0000000ddbc3194034dcde0814cfb25c2349f3de7b82fd1ad3fe8319099d779c
Next block
00000007248faaaa0bcf2960ce815aa729ac0ecdeb4683d559e0c601667d5fa7

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 21338 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
e70d108733a6ba629c58352edfe39f12… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
2432b93e94fc…a58e993816aa coinbase1250