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

Block 18377

Hash
000000ed55ce84eb0b7ffd5b333fdf3a1d2007ca77def1c6ffaf549b997507ed
Confirmations
23746
Time
2026-10-09 07:22:54 UTC
Median time
2026-10-09 07:14:54 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
91b8012ae2448ea6d43d7cbe177056ae5c7ffa257bc72dbf7b338ee24a71c75d
Previous block
0000007fff7c70b4ee79546bbcec35f85e9c2f4a8896482c9b2f133fef60099f
Next block
000000a5506b5a1f055d77bafd7cc1f8af4c10b7caa3ab1466c46ba0ba083374

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 18377 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
b4ae9ec6bfe5c0941001a773634a2319… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
91b8012ae244…8ee24a71c75d coinbase1250