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

Block 19684

Hash
0000009931de9dc6eba794e2d67dd7c5854b7482576557f1b206ab3a80e28dfd
Confirmations
22433
Time
2026-10-10 19:53:49 UTC
Median time
2026-10-10 19:45:39 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
8e2221ba9927f727b7206c40b006d6b6c51c7e642c8802445c2467ddbd8f54f9
Previous block
000000b7bd8b92b98d7e559f603be7c01140af7793b86e33297829e019df5026
Next block
000000cf79047b5c26f0c52b8ac09d0b4712fb2c0be66eba565d9e82f451f958

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 19684 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
53c6ededd6ed201c8d78a5efcb028827… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
8e2221ba9927…67ddbd8f54f9 coinbase1250