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

Block 21468

Hash
0000003d3ac6b7d92f59e1d93b0349418bcf410f2457a6495e4b4b26b9c200c2
Confirmations
20058
Time
2026-10-12 21:25:23 UTC
Median time
2026-10-12 21:16:38 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
dd43ea667208398d4a5c53f7efafbed2b42b684edabaa7e5db0a5292e3315344
Previous block
000000ca984ae73ed430ef86ea6fc55e58126b22b05c460f2af385c974f6326b
Next block
000000874c4b59853f60d5e41f6f77ced85bd0707866550efda00f779efecce8

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 21468 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
ec7efa96cb11a2c9bcfe6760450b1950… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
dd43ea667208…5292e3315344 coinbase1250