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

Block 21659

Hash
0000003cb8637509d104b11ac5837464d6aecc88bbd00d597642e5dc0e340cdb
Confirmations
20460
Time
2026-10-13 02:45:53 UTC
Median time
2026-10-13 02:37:37 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
be6360dadc2b195662725feee6d8804c5c24ff921735168c2692443bf779cc1d
Previous block
000000ab1553b1aad3b6ed8c2293458eaf80a9da43a3b36b19c7c7cf83216761
Next block
0000004e7db0f1b01faa3dada23f5eae645ccaa4879fab5c4b5746e47e84b1e9

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 21659 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
35edaaf51ed84906cbd772f9a6d37228… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
be6360dadc2b…443bf779cc1d coinbase1250