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

Block 19580

Hash
000000d789f8a94291e8305d62a9a06c58babc1261dbefeaf573417f12e8fb48
Confirmations
22468
Time
2026-10-10 16:57:20 UTC
Median time
2026-10-10 16:48:47 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
e264b57c34999dfc6a84a0e71c0fceb9fb10e1246b18fbb5507c61dc7e2fa3f1
Previous block
000000b66e497ad189965943316bf1499ca20ce480fa8e13b52815a06053bc26
Next block
000000c2f788619815b9eaa5678340b4c096f43756131e115d007548698397a4

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 19580 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
25757428fb8cbc6cb56255896ffcf03c… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
e264b57c3499…61dc7e2fa3f1 coinbase1250