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

Block 21671

Hash
000000e05149d315cd53e001b11001bff8f8f7add4630bd427364f7040dd2df3
Confirmations
19603
Time
2026-10-13 03:06:51 UTC
Median time
2026-10-13 02:58:32 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
88a9f52a7fd1f7f435607ccc49aac1dc6a5664f86337afc1624af1f3c5ffed6a
Previous block
0000006140f8cb930a972326f8acda1eb01208a9712c097a9f79e49741b497bf
Next block
0000008254f16c77645234b7f8d4d94c0cfb68d4dbb0bf388eadb998ad575870

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 21671 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
14c3776e8ebdd8fccda94c7995c289ee… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
88a9f52a7fd1…f1f3c5ffed6a coinbase1250