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

Block 27731

Hash
000000535d5014debe063e23293a25afc968b8c2e8751f85ad39b692d9ee0a9e
Confirmations
13334
Time
2026-10-20 01:48:45 UTC
Median time
2026-10-20 01:40:46 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
24d2dc63c190fb3ef15b7e2fd1995f6437bc146e23326eb5776b0fffba49d373
Previous block
000000d4062b3e940e6e5a6c33de7278b9546738de70a64e03698bdff3a5d367
Next block
0000017dd2e245a8e61c3ae8f5feca235f691bfd670da0bd7a1a708470ae217c

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 27731 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
39da4db1125ac219abdc95c61e5d84c3… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
24d2dc63c190…0fffba49d373 coinbase1250