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

Block 21246

Hash
000000dbf0cf11f10492f5590f9de687cad47303646260e2dcfe922a567ce7bf
Confirmations
20023
Time
2026-10-12 15:10:05 UTC
Median time
2026-10-12 15:02:00 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
8cc0abc4749f7d446957e4e3dab3a1e82c30da14314cc873a7f5a955c5cac945
Previous block
0000005d3477a5a2e7cf00c5f37d89430d313ab857e5d715edec94751b4aceb3
Next block
0000004f83c26064fa25a7fb1ae141a0047776c582f8ec3eeb90f8ce571f39a8

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 21246 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
2d53b6ec450002bbf6278191436368df… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
8cc0abc4749f…a955c5cac945 coinbase1250