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

Block 18119

Hash
000000bf08833560c9660abca348cf5340cc3f6b46e13d0e0e11ef93be01d232
Confirmations
23618
Time
2026-10-09 00:08:15 UTC
Median time
2026-10-09 00:00:13 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0040172004
Bits
1e00f8ed
Merkle root
893926d876dbcf4dbcf6788ff3938435b65e154356ac149361cbed4e5a3bb7fc
Previous block
000000b96fb38e3690b985e29d0d89951645dee10aa12dbb991bee8b91024a56
Next block
0000009d6e0c8c8496a03e4c2aea8d637e206216ea92ceac912567c9982c9f67

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 18119 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
7aff798fe74e8814ed1bdb0200cd354d… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
893926d876db…ed4e5a3bb7fc coinbase1250