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

Block 28616

Hash
000000a55b81c8a2280222dd63c904a12a2159f97f6dda564acbbc53c48d14e3
Confirmations
11601
Time
2026-10-21 01:50:12 UTC
Median time
2026-10-21 01:42:19 UTC
Transactions
7
Size
4,373
Weight
14,918
Difficulty
0.0021387367
Bits
1e01d38f
Merkle root
eeea567939ac1a89663c0603cc67f4646bf2f40179e157b07e4aa63710af505e
Previous block
00000145aa28bb4ff9891b4348579d630e34f9ebeb961315d3d876810ebd02a9
Next block
0000016d82da9bd91970f7cba8666c6c8763828578218d0e1cefc10bbcdb3894

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 28616 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
620f812e4c05940f83466f5924536849… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
7b50d30a54b2…3fc4c4f921dd coinbase1250.00001978
3693496894f3…738f0d4d69f8 spends P2MR pays to P2MR110.999997420.00000258
c9c532c0727b…e29d9f9fb20c spends P2MR pays to P2MR120.999996560.00000344
6c27622f0d9e…8aedf42a781e spends P2MR pays to P2MR120.999996560.00000344
cc532dde279e…26bb3250372d spends P2MR pays to P2MR120.999996560.00000344
a1077dc610d2…bcb1c6090594 spends P2MR pays to P2MR120.999996560.00000344
a8f29efb6cd2…b6d5c1ea1dbf spends P2MR pays to P2MR120.999996560.00000344