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

Block 19482

Hash
000000f85e90083d8aa7299d96d9894659fdc60ee10628cdbe008dde2b74fb18
Confirmations
22326
Time
2026-10-10 14:14:41 UTC
Median time
2026-10-10 14:05:52 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
453fb42672ee4d6d8942ad1cb135dc5749f880d91b6094e70c0c5ea04838c149
Previous block
0000007076a641b661c495def79860f5e31aa921c333d03400c720b563e2dcd9
Next block
000000f00e6541a61e4c250273364e0fb5c16f455aaebe98e9dc9ff15a39ac08

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 19482 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
7cfed2fb3137c1b619d861eb996f986d… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
453fb42672ee…5ea04838c149 coinbase1250