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

Block 21733

Hash
000000a794d09536b7ab5426c1e76228e029c1921480001908aee3f29ab259dd
Confirmations
19989
Time
2026-10-13 04:49:23 UTC
Median time
2026-10-13 04:41:07 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
db048c9b00f484f40b0189e07fc81dd6b2ea59f6800ec48f36dd1664c7c388ee
Previous block
00000000242e0bdfb098233a8889237bceb1cb60009209e8f127aef2a12e8574
Next block
00000137cb44b33d18c92bf42c5d2fe75b07f87ebdc437b753c215f4477e2fc0

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 21733 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
3f0ed35142cd3f68112c3617b5e603f2… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
db048c9b00f4…1664c7c388ee coinbase1250