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

Block 25639

Hash
000000b131c498f1c9287184c5d80c17847bfd5a5e40279dd5bd806087b77e17
Confirmations
14954
Time
2026-10-17 16:05:52 UTC
Median time
2026-10-17 15:58:11 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
073b12d4eba1120a10832a36f054d82e4ce92ad59ce77c44bc1e82d83dc33cf7
Previous block
0000010b2c497da8d3b3188779affe538ab8e75999f4132117f097637db40919
Next block
000000f8e5949362111777df93b0b6e43125db3ef849b9b369fe8288a90af064

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 25639 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
90ddac9f881c21d04ee0c84db8a1fc70… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
073b12d4eba1…82d83dc33cf7 coinbase1250