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

Block 19014

Hash
0000011222f88ae9a8ce9e5ac5bd92f3566c1f6f61281cf7d230597888e97b1a
Confirmations
21970
Time
2026-10-10 01:03:33 UTC
Median time
2026-10-10 00:54:51 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
10f434768c779d6ddb8e106d54d6fb366edf7a23ae2555d0395dda00e8295283
Previous block
00000082e72afda64848e88fe228fb860b16aec3fe6c6e2b21c7c2ce223c3d9c
Next block
000000099d8b796989c0594f7c602c061b27b2914205c2ebe16aec820c95a0f0

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 19014 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
5b899fd730ce13383a187454e148c018… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
10f434768c77…da00e8295283 coinbase1250