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

Block 19819

Hash
00000110039681de716a808d7519d1446ed9545f2da608e5152f7eae4093b71b
Confirmations
22232
Time
2026-10-10 23:39:57 UTC
Median time
2026-10-10 23:32:11 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
167506a0d84ad417a2648accdbadbc674ebb5917161176a4d5fd508a636c0a14
Previous block
000000eed3f4adef03ccea1a7b75f2690d09ed8e1d9f3b3b616bc3242768596d
Next block
00000060b551c75451386a7593331b7c8a9afe8d23c494b92a6c1e6e31e3f619

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 19819 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
43452e4340a7d8dc4925b2dc2248855e… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
167506a0d84a…508a636c0a14 coinbase1250