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

Block 19253

Hash
0000011beaae25a7ba340c4d2e16eca4c3ea31ba4690c11513a06f7795e7f6a1
Confirmations
21942
Time
2026-10-10 07:48:58 UTC
Median time
2026-10-10 07:41:11 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
6fb454b1ba6c04cf4cfc2113a9e37ee3fe33fd45bf34f5b34a4688a47cf5f6e4
Previous block
00000077e8d19f9e8f93fa0643f611405eeb43d56db0221971594cfd1244e100
Next block
000000b89083a5f171e3e71b81152f3c7c9399eb5465ed9729bf87d6e75d78b6

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 19253 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
58b5300a5f512dc8a104d36949f56f80… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
6fb454b1ba6c…88a47cf5f6e4 coinbase1250