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

Block 18083

Hash
00000033e49694c514b1cb9eb821c476457020bce7f39cbf17f490394b02317f
Confirmations
24050
Time
2026-10-08 23:07:35 UTC
Median time
2026-10-08 22:59:45 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0040172004
Bits
1e00f8ed
Merkle root
1310775040e245eb81bda5115e5c6aa49b3fef798f8a827cee6e72dac9c3a14f
Previous block
0000009329911d42c08cdf6f1f4772c0bcb8d1de911b0dab0ffb79d34725e0bb
Next block
000000baee46d0d9c9a001b48ddd1d708da499ba6bab67a9fc8a7069fbc9424e

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 18083 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
c411afc7f30909636577da392641c3e0… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
1310775040e2…72dac9c3a14f coinbase1250