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

Block 20339

Hash
00000085d736fd2a95b6101ba998b22254d95779f18b521015c905cfb1eb34bb
Confirmations
20632
Time
2026-10-11 14:08:50 UTC
Median time
2026-10-11 14:00:54 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
605294538ea107c87b4b5e8090825f1d57836955c3314d53e5760a8250aff6ab
Previous block
000000805dc918f014d5412793b7219537c303c9cd5c7be4976222bbc22ca7ab
Next block
000000eb00b19d7f70b4015b72e58b694d4e7d56b099c48f20be8978862d7bfd

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 20339 is at or above the activation height 20000: nodes that enforce M2 accept a block there only with a valid ML-DSA-44 block signature.

The node behind this site enforces M2 and holds this block, so its block signature passed the node's check.

Status
In the form M2 requires, followed by the signet solution push (the classical signature)
Signature
20ec9f63417b43d57558f453cfe8161e… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
605294538ea1…0a8250aff6ab coinbase1250