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

Block 25036

Hash
000000647d046726a85378973c43082150117c9d3e3c087a730dbab09a79ef74
Confirmations
15705
Time
2026-10-16 23:37:55 UTC
Median time
2026-10-16 23:29:46 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
7c3d4a98ad852fd54f6513c203eb9d83dd1659185e4f60dd3b6aca84547f85f0
Previous block
00000019bb0bd2008ad74fb903acd601762f94ec8403748aef4950ad4315d78c
Next block
000000cc4fc778a0cd69964303aeb4a1af431678b1a1e05ba1350855b0600ce4

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 25036 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
a1ee7ae3ca5ffb1ec5ddb0c28627c528… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
7c3d4a98ad85…ca84547f85f0 coinbase1250