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

Block 27423

Hash
0000019ddd4a00b40ead0befe2e692776abde9d6fcb86a3b9af06d5551968177
Confirmations
13379
Time
2026-10-19 17:30:48 UTC
Median time
2026-10-19 17:23:00 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
6e4dfd63303d5aa680a1e728a6b2e8cbd379d2b1cbffba13560f97960f6abc1f
Previous block
00000120971085ddce202aad5a8fc0572a1410baaf4cc20758aaa66c0a000f3b
Next block
0000005621fc1ac685e33d299667d33fec6d68de2c51c89bde5f697bdd3cc647

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 27423 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
31c99719f110b99f713a5d7e348d78fb… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
6e4dfd63303d…97960f6abc1f coinbase1250