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

Block 25776

Hash
000001647d41d6a2b3e7660c7bc345ccc37de65b0500a0ba0a2bfd272631da8a
Confirmations
16768
Time
2026-10-17 19:47:47 UTC
Median time
2026-10-17 19:39:40 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
51ad019a3a8e2e38bc50e2ecb84d06932d4d2f7a9275ef323abd8d6605bcec84
Previous block
00000124dfde219b45082c245895d8bd4901d7abf0767b2c15ed907c889b3c37
Next block
000000a2b941e8b50b380c514a83880d80bfec5be557ebde442105517af60e97

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 25776 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
4d4a4cdb7d89b6dc342bd23012134ba1… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
51ad019a3a8e…8d6605bcec84 coinbase1250