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

Block 21619

Hash
0000006bf6aba638af643041eaf2b852f5f850c2b75be2fdcc22fb39a7d7da74
Confirmations
20057
Time
2026-10-13 01:38:33 UTC
Median time
2026-10-13 01:30:07 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
ccdf7eba6050ce482eeffce09f4463139bff210eb55d41a945e0f7d2d016ac33
Previous block
000000a7a606a5fa84de6f0e6d5e1a6580296bf165c86162036842e3243eeb24
Next block
000000efb4b6f6fc65a0e28123007323c23bb5ccba3e02919f60e1529a725dce

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 21619 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
e57ca5c8e077d12e2672ad434c0b67e2… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
ccdf7eba6050…f7d2d016ac33 coinbase1250