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

Block 19671

Hash
000000d15834289edd2391f388d9ae6030f163e31981602376790fbcb1ff84c7
Confirmations
22556
Time
2026-10-10 19:31:59 UTC
Median time
2026-10-10 19:23:50 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
3e32ec83e8883f91e7c009c97a083af76df68b9dadbcdc6de302dcd76e24878f
Previous block
000000517a332606f662e8b5455e14ac752c38ea83f7ec84f4155b8d62d60c39
Next block
0000009d09f64f9a21fc3296d616243e60db4a364982bc039718d4bc55b32090

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 19671 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
63d4a117ece7c6333a533c3f789590fb… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
3e32ec83e888…dcd76e24878f coinbase1250