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

Block 20991

Hash
000000db98bc6e1ec688f2813d110cd2b394ff459ccce7bf18c3b63666718aeb
Confirmations
20259
Time
2026-10-12 08:06:48 UTC
Median time
2026-10-12 07:58:38 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
23b0f369f8b4265fc63afee6f8735b2616195bb24ddcf4daba3ff588375f3349
Previous block
0000009a608f418beb4bfacc246d2a44482ec3f0a57e1b9881d4f7e9bc030d3d
Next block
00000018ec1e3173eabd183c11318ee78a3a2812ae43f9a9435a1fd1f1d8690f

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 20991 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
4b8f8f0c5f34d884d15d17a7833dccea… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
23b0f369f8b4…f588375f3349 coinbase1250