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

Block 19022

Hash
0000002c46e0c54206c92131c9def00db439d92ef03488c30e5e528286bc492d
Confirmations
22384
Time
2026-10-10 01:17:05 UTC
Median time
2026-10-10 01:08:37 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
882eedeb3c65f53e0ac73c3ecffe4f2d6e4a6b4cbef72897671d011f0893e626
Previous block
00000037ac70eed7d9550ef2e3c46b3bc83517b7bc1178317ecd95e0e52fd211
Next block
0000010dfabd0f197b5d45057726be37d75671d09fe7d039bf80c3c5083eb55f

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 19022 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
95bc37fe8cd281d3efcb6d571f283e56… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
882eedeb3c65…011f0893e626 coinbase1250