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

Block 19260

Hash
000000f947c95d620a5bdacc8fb3b5fb37311f97d57fa2ed94e79b64d5f241f4
Confirmations
22146
Time
2026-10-10 08:00:31 UTC
Median time
2026-10-10 07:52:24 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
7b323ef63d7c73a76b0f76427aae03490ac53a4b04d5c41d9f0e02cbd45e82d8
Previous block
00000087ae667c6d50123c4f47fe5cf019aaf763afe4a4904756d1c6b87c26d8
Next block
000000ef4d2c0eb04b787058da0ee25a0e92f9e33c60d4068a338636ebaac358

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 19260 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
daae3024f80d39aa90d7ec28051e21c6… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
7b323ef63d7c…02cbd45e82d8 coinbase1250