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

Block 19208

Hash
000000d2c20cfa5f71a363daed7edea179dfc31e2fba6f90d60142bea2edd43b
Confirmations
22153
Time
2026-10-10 06:33:50 UTC
Median time
2026-10-10 06:25:21 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
0232aa0064492d6cda0077ac463d626d2a0191771797b8c80e5c53fbcd9d1368
Previous block
0000007059855243d2795972347b21729885655f23d6fb533afb1d7de49cb3b9
Next block
0000010703eb3b446f644350adc3be5420e481902bb361b7ab8a8b9fa5441b0c

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 19208 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
5ee0251dd97e5467dda6f210357ea93b… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
0232aa006449…53fbcd9d1368 coinbase1250