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

Block 21262

Hash
000000a6ebb001bac908e2383212b3f3deaa431814868a40e0beb7311a07e8d8
Confirmations
19769
Time
2026-10-12 15:37:46 UTC
Median time
2026-10-12 15:28:56 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
0d37b2df9edf640b7063a4fc62e40c2d583f7227dd4a7845c32be4cea2b9237e
Previous block
0000008c4a4187d9e16e1ebd1ba5127dfb5b798b0cb1cb4ab3b2a1a3f467dff3
Next block
00000017a0e337064a267496b97abae7fa993ec3fe47f003ab0609df6004ce0a

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 21262 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
e7463d58e11f6834fbefb2b9480cadef… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
0d37b2df9edf…e4cea2b9237e coinbase1250