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

Block 18183

Hash
000000124a5854e76325c4aca5a2c29966082b134b50d5ebcd0d1e222f2c7ea1
Confirmations
23068
Time
2026-10-09 01:57:08 UTC
Median time
2026-10-09 01:48:48 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
8f14cc6520ea4cef0fb0b7dd376eaedabbc6b34810896fd48adcfc6565fb6335
Previous block
000001037c6ea6d9c6539c68f2e4f58b099c0c0c65b6652d26a1f194b94f5819
Next block
0000010d28d81c20bf58fb11620ddf4607e26b6df13f68bfdf0a3666969a6f7f

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 18183 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
e969a54982edfd1c839a7c8b847eaad2… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
8f14cc6520ea…fc6565fb6335 coinbase1250