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

Block 19135

Hash
0000009181a3145edccbc237a7401bca6a927ddb9f183c709796a93a34f2113c
Confirmations
22331
Time
2026-10-10 04:31:51 UTC
Median time
2026-10-10 04:23:14 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
5c095ee024d989eac722e6ae1ab28d6b303870f07166424004b0c1b0d4600e41
Previous block
0000009f1d7e1a766c7dfc03648b103977513d7318aae9141963fefde45bddf5
Next block
000000d886c8aa9287f32e441d58e54ded631b9031efea06428a9e9221331c00

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 19135 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
560199db27e27c9d70148d0fb89ce8bf… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
5c095ee024d9…c1b0d4600e41 coinbase1250