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

Block 19052

Hash
00000020fb174186dad97b1272db3c63188019993534dd265f8861f07689649b
Confirmations
22536
Time
2026-10-10 02:08:00 UTC
Median time
2026-10-10 01:59:46 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
40971f68d867ea964000df7b605983d1434eaadceb642b3769e0bdb3499e25e4
Previous block
0000000fff168c38366781fd53f010a0efe6174acd1eaf80beaaa6f83bbab0b2
Next block
00000116eebb3a2cf7c2ecd4ea0dd62e492f6302764ed5a163bff6badbc79587

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 19052 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
7caf70ec48ed1e8d68944467204c9853… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
40971f68d867…bdb3499e25e4 coinbase1250