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

Block 21883

Hash
000000ead0f8a80b7e99c63dcbc7d4576f1e2606677b09908494dd0bcb717ea5
Confirmations
20189
Time
2026-10-13 08:57:18 UTC
Median time
2026-10-13 08:49:22 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
334653dbcf969a2da97fc075e0dad106b57230db22baa97fc460cb5725106aca
Previous block
000000d383cd61768544e2bdbf92fcebb53224a521918d3090011ffae30ddfc8
Next block
0000001f376871969f9689d77dbb7e38c270f1928892150a6eab5d7c1981eed7

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 21883 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
0e274f6e325d0a28a5a40701d6b919a7… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
334653dbcf96…cb5725106aca coinbase1250