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

Block 21969

Hash
0000006b5e7c449435d57925cb6fcf703292ca765dae7c6876bcee850a69f657
Confirmations
19325
Time
2026-10-13 11:23:23 UTC
Median time
2026-10-13 11:15:03 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
8c3aa1299626d13dc98d7b26e9a140d15b099fa6aff6b29dbf78416b3d5c8ab1
Previous block
0000002f8ad7d088f280b6d2cd0ad7bc3363790f0593223e3d34b2f46005bf5a
Next block
000000778fd819b53ccb07c2eb67ae82e9b9a8cf7751892cd34b13631537afef

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 21969 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
8406c7be0f8e81aebe6f4c4d5e59fe45… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
8c3aa1299626…416b3d5c8ab1 coinbase1250