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

Block 19127

Hash
0000009ff51019a3286231299b93acadda7a2aea5741920423be2d0806547177
Confirmations
22768
Time
2026-10-10 04:18:17 UTC
Median time
2026-10-10 04:10:20 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
6c1a9c1eac9c3bf929bb9a0343a78d841dccffc0da4acbb55937d5ebaf8abba5
Previous block
000000c04fc8ff39e4504cca2050858a6fec47f23eb1e84f78be5e8cb62bf35a
Next block
000000329680610264201ca3c8aa655026ed014d45f72b27ee29f05e97f6592d

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 19127 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
a876534c787e2b1d96e113fa91be7814… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
6c1a9c1eac9c…d5ebaf8abba5 coinbase1250