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

Block 21154

Hash
00000025089b7e4c091d54e413cf980fb3bdd6a476d2b869e6cc91b37c26db92
Confirmations
19658
Time
2026-10-12 12:36:00 UTC
Median time
2026-10-12 12:27:22 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
6deadc8dad3c33d73d5095933be8f844245c7f0ddeb65fd4ad9262c981f9779b
Previous block
00000080a385610262fd50d899615ab7984a7de5d9b7ecade194d533583e61fc
Next block
000000ee92fb0e739ec11699840ebe70864314602bfa284612cab34339063055

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 21154 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
df80c18259ea4356a734c646b021cec2… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
6deadc8dad3c…62c981f9779b coinbase1250