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

Block 18358

Hash
00000003bc7acfb96b2e4d9093e1181e85c2291f7e8c7a9b3e767dc390d7a23d
Confirmations
23832
Time
2026-10-09 06:51:15 UTC
Median time
2026-10-09 06:42:46 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
983263b1dc06b512a2d31111f0d0518947f3662ce6061f87996bf269ad41b9be
Previous block
0000002e3e70d1483372a31ece7e94d4818f8d2d7a22c8c024315f5364cc114e
Next block
000000455ff08d9306101cb556c095a6499564bdea33fda87edb9cc62f271023

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 18358 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
6ca9cf4313da81db4b9f724728919f1b… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
983263b1dc06…f269ad41b9be coinbase1250