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

Block 25723

Hash
000000788f7a7676dfc8b0cd33960b925028664e8f7a1898abc64d713c3500ee
Confirmations
16634
Time
2026-10-17 18:22:44 UTC
Median time
2026-10-17 18:14:28 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
d1869098cc2d4c99a209c93a6251fd6823fd07b5805c22720cb45e54768ddb81
Previous block
00000004bffa0929349561bb6d11fd6de5b1ddd8e2cbcdaaeb9e7c65a660f8e2
Next block
000000484131a25a14b076ca217fde90076e318630c1e1769991f318bd999c58

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 25723 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
ee7f3f41119124307d37a91f2cd63656… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
d1869098cc2d…5e54768ddb81 coinbase1250