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

Block 27775

Hash
000000c1db704295955fff55ced0aedccc8fc296c3a440586430f9b28b15b004
Confirmations
13254
Time
2026-10-20 03:00:15 UTC
Median time
2026-10-20 02:52:26 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
953c974c4ab0d68e3c3da50d6c48d98e1d54fcf4af8b08f1aeb2540d3292a2b5
Previous block
00000003603fc1ba8a51f13c7c08db3f9a821a6b6ddf248dd7aacafef57de8a0
Next block
00000131114781c27aced99d37c5efd276eb01556991c148c85e6a06a3f3ac69

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 27775 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
55d35d7048c19d3a45dd481f6d2bb137… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
953c974c4ab0…540d3292a2b5 coinbase1250