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

Block 28701

Hash
00000121bdb99a8c24aa2403835f5d75856fe9907a1719074486a736e57e75fc
Confirmations
12812
Time
2026-10-21 04:08:49 UTC
Median time
2026-10-21 04:00:45 UTC
Transactions
4
Size
7,113
Weight
16,131
Difficulty
0.0021387367
Bits
1e01d38f
Merkle root
1114c417f0b6b207dda389772ecbde72942c90a7bd1acd79b770c68bcf948d5e
Previous block
00000163a2469b1a1e3058cc203f3da2bf8e121b8bbf86cbe3665a8d00284af7
Next block
000000772fa3a405215acea9545e46cebcccb2aaee27c89b0d2dfdfa8d8d776c

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 28701 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
ef0280c090b78e1e0854fe5f4e2871a1… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
88226d019718…eabeee27d239 coinbase1250.00003516
31f31c4b5f45…8f4d6766a11e spends P2MR110.00998830.0000117
d18ca69e50c5…9ba592468cfb spends P2MR pays to P2MR110.999997420.00000258
3678171bd7e1…f65317ca45dc spends P2MR pays to P2MR110.999979120.00002088