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

Block 19792

Hash
0000010582f5f314d27e9b1575bc2312131d2099ebf77402a029b4fce9c98ac7
Confirmations
21093
Time
2026-10-10 22:54:59 UTC
Median time
2026-10-10 22:46:25 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
26a712f23643d934b818699ca1b626e43daedb4086db0cbe07ee46f6b1484f46
Previous block
0000006e098a768215e46dd23b073dc4e14043762640d38957e8750649642492
Next block
000000feeaa06959a5a18d76a28331d6f07cb73af2628defcad3b4ee55535d15

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 19792 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
6ddb3a0ee1df5ba97b51c3ed80a504f4… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
26a712f23643…46f6b1484f46 coinbase1250