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

Block 21794

Hash
0000007f35d7ef332b329538950ad95b22a201c29f130ab573b2798a16a50766
Confirmations
20222
Time
2026-10-13 06:31:40 UTC
Median time
2026-10-13 06:23:32 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
1a7bd4c8912e66fa9087dfbf5ba100d41ba9d64b28bb8a501f72dbb087acae29
Previous block
00000055576d4fdc1a910c9d47217c386a07e78da02a12030191676e3f0f1742
Next block
000000b6509f166da4e11291df20bfbe7ed92e928730845486c7c36ccc2afe51

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 21794 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
76386b7b90dfe826f961f0bcfb950415… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
1a7bd4c8912e…dbb087acae29 coinbase1250