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

Block 19058

Hash
00000009ab637728c908db84867a3f0bd17ffb9b420b01a7df2cae27e4c15c84
Confirmations
22651
Time
2026-10-10 02:18:09 UTC
Median time
2026-10-10 02:09:42 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
80eac7a0c31488357e5ac252ce893b6d6f73fadf5002cc58a4489ad17e0ba35a
Previous block
000000ba150a7936d007cc68278f266e1f10edacf322453492fc24b66fdf66d8
Next block
000000ca0db45c6b32f12a32f51aa362336ad53ab029bab5e48b0b1f55c422f9

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 19058 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
da82d4e91444ea938278b5a867e2b1b3… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
80eac7a0c314…9ad17e0ba35a coinbase1250