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

Block 20947

Hash
000000af913304bb51e17d6438769f3c4a00f1d1628daf68e5a4f66cd8883707
Confirmations
21235
Time
2026-10-12 06:54:32 UTC
Median time
2026-10-12 06:45:41 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
1a61c258661efc5e1d324fec53c8cb1bd6bf75e11597374d04da31b2755d4904
Previous block
00000003d078fa27917cd07bd0d58462cde6eabb8ce49fa2e6861ecaac33142c
Next block
00000135187d288ff31fdbf085a8873849afc479669938ce1e51fc33277396e4

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 20947 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
2a5cf887b434940fdfd32834bba1212f… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
1a61c258661e…31b2755d4904 coinbase1250