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

Block 18497

Hash
00000021bbb4b842763c5c36ca540a5b4b1b4b2bb7369d75022e3d70b6742db1
Confirmations
21596
Time
2026-10-09 10:44:00 UTC
Median time
2026-10-09 10:35:54 UTC
Transactions
3
Size
10,597
Weight
19,498
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
21bf52409262c13b1e9597a128bcc1e1a1fc52ae2ae038a5a3103134ed4c0971
Previous block
000000d4c1a8b5964e1a8b37e947593bfadf795cd56e29d4f75b4d22e0934bb3
Next block
000000fde0469e9dd1917a0a1777d6e8637364a6802e8278cd627c52616a869f

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 18497 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
c1e154b8ebb89cc6492bc1b4bfe17ff3… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
6763e01fa598…5abc25bed99d coinbase1250.00004262
5e81ca316834…afa86a325c37 spends P2MR pays to P2MR111.99993330.00002088
9f350b186c64…ad6a9e92a478 spends P2MR pays to P2MR120.699934780.00002174