Block 21688

Hash

000000b4c6afbb81e4baf2ca3a019ae6c55ac527706094b42db2e3cd48ad2434

Confirmations

18822

Time

2026-10-13 03:34:16 UTC

Median time

2026-10-13 03:26:29 UTC

Transactions

2

Size

2,977

Weight

11,596

Difficulty

0.0031405554

Bits

1e013e69

Merkle root

ff719797fb2d620275ad2e866469abb8d8b59e259c0b3a0fddcfc4735e4e2f98

Previous block

000000e8d4dd2f91c310a2b107ecdfab731d3667c195f3e5a3500fbc039211e8

Next block

000000f72e0c21f2a8f24efaddf1fa16e1c42c2270ffd349c2fea50836d09c25

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 21688 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

8236db04896b9fa9878d75dadccecc56… (2420 B)

Format version

0x01

Context string

SIGNET/PQBLOCK/EXP0

Block key the nodes require

SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions