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

Block 21176

Hash
000000921f83d35e94af7c290bb6c0f2b01f96f73c5d23e6d8447c6a3830dc6a
Confirmations
19871
Time
2026-10-12 13:13:40 UTC
Median time
2026-10-12 13:05:19 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
37560f18e0fb11e3bbd0b0bf2fe329c66b58b8836aefde0ec439f44add7cefb2
Previous block
000000eee2f5ed4f4d26b1284c9cb222f5edbe4640c092e2345ad8db06798e48
Next block
0000012ef864c74889b81f1d9665e297490c396ab0a219abe8bed09db67a7a11

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 21176 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
2165cda0e6925c7c966b383e4b112c73… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
37560f18e0fb…f44add7cefb2 coinbase1250