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

Block 25553

Hash
000000e262f70b3de514e889212e787b384df31ec77f572d557c49314856ed76
Confirmations
16762
Time
2026-10-17 13:45:13 UTC
Median time
2026-10-17 13:37:15 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
8c72d0ecbdbcf86330c41c5b3800fde033d57358662c00c9427039a068bf5f4b
Previous block
00000009f9a495cdf6490636e563680e37132783334d49a8c15c104d0981c15a
Next block
00000025c81d5db1018d7fb4616560ed526d0c109b773d9ab02e6fba2285a57d

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 25553 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
a2ebff37dc6d5e21b9a5888181e0d505… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
8c72d0ecbdbc…39a068bf5f4b coinbase1250