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

Block 27545

Hash
000000c1b585f2725b1e4b195d6c8e14514c3b383c619515c79b852a7ab7cc35
Confirmations
14707
Time
2026-10-19 20:47:30 UTC
Median time
2026-10-19 20:39:07 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
702eb14688cee640a935e55da6ca3ecf0756c1c33472bea48748751cd00f1f7a
Previous block
000000b83398e5577fb5632b9f7e187976de32e68410e9ea673ead7c52afde9f
Next block
00000094444ebfbba8df565f120d4eb28f9e7609983bf3d3ef191a07401d243c

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 27545 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
f0c0509ca393926d777748ca946350ab… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
702eb14688ce…751cd00f1f7a coinbase1250