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

Block 21527

Hash
000000e0028be31616cfc5c23f44770833478ea2d0d7a0a9c90fb675007203d9
Confirmations
19706
Time
2026-10-12 23:03:02 UTC
Median time
2026-10-12 22:54:23 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
9bc4e7c48954e1e653691d9e3b3edac6447c3371c1ac2d2d590b228bde169a6e
Previous block
0000005f9480d176858269389a290886361bde8091650c0cf27f07f52be1ed2d
Next block
0000007f01dc1498250883a4a50cf2eb69dfe366aa60cdfa776d16c61ffb2d7b

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 21527 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
5bec045b6d1d52264313ea5875ee29f7… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
9bc4e7c48954…228bde169a6e coinbase1250