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

Block 19295

Hash
0000010f4e6a3c04ca9ec9f9d48d8f92d1b372d628d7ee62628461a27754ade1
Confirmations
21341
Time
2026-10-10 08:58:37 UTC
Median time
2026-10-10 08:50:12 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
acd828b1072fe1233a8980aaccbee2c13a123db2e5cde9b5c8f6598ca9f537ee
Previous block
0000006bccc9e1a6a639279b1f5e0e0a0ad54760ce4b4ac81eb05d2ffb63c0a7
Next block
000000ad268cbd3265e62abb8d57d91d7d018ef3838b79b2504f7da19b1c2dde

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 19295 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
0f1a7c0b23f6d1ff9fad4c5f5b22cb21… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
acd828b1072f…598ca9f537ee coinbase1250