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

Block 19933

Hash
000000f8b95d5d5e2b7e18949c3a0b47b36aa90d4b6fe05660dec7c733bf89f0
Confirmations
22158
Time
2026-10-11 02:46:12 UTC
Median time
2026-10-11 02:38:15 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
ec8c6bba4eb0c83bdcbd6953633f003f47e02bade316ec4eaa173857f3267e38
Previous block
000000bedd82400f11c0336f2aa108652f14a9d9fed10947dda5198b5742e127
Next block
0000005fffd2546821306cad445c68f3cc4cd1fcf72566f75dc015deaba52eb6

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 19933 is below the activation height 20000: nodes do not require this signature, and only log the result of checking it when run with -debug=validation. The block producer adds it from height 18000 on, so that nodes can check it before it is required.

Status
In the form M2 requires, followed by the signet solution push (the classical signature)
Signature
a1a9540923fa50aa05bd19f6c660e8e0… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
ec8c6bba4eb0…3857f3267e38 coinbase1250