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

Block 18094

Hash
000000136599abe432f1226584893a7c079f9922f4c2bfac63ac8cad43c7f8a8
Confirmations
23981
Time
2026-10-08 23:26:10 UTC
Median time
2026-10-08 23:17:52 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0040172004
Bits
1e00f8ed
Merkle root
ef33d827ce73d90109134a63939f62a3624b7b62302be2e0cb976c2aac1f04d4
Previous block
0000002f0d5fa55a81b38849e980cabac0e567b86a9cdf12494b6cb01ff4d5e7
Next block
000000f354dbbe214be94277f2cd8a8775eb767961c476812da626c444f84451

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 18094 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
78db34513073d0ab08c7c1b0654e436a… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
ef33d827ce73…6c2aac1f04d4 coinbase1250