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

Block 19392

Hash
000000a653ff348ee0fcee6b81c501ea1518cc64e663f70f1770ee79f2b80a5c
Confirmations
21652
Time
2026-10-10 11:43:06 UTC
Median time
2026-10-10 11:35:12 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
a2bea1766f5805a5d80496acf6d3db736e9e2df2f52c82fedc4faf5c2c416c11
Previous block
000000da92f3b3bd369516a8b9694f225370764ff043d71e17c29bb4f5692a71
Next block
000000360c536665db25968fdaa809591938894b072cb0e1d1529e55abdeaa21

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 19392 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
827d974cbb683a69d08af3d92e181c67… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
a2bea1766f58…af5c2c416c11 coinbase1250