Block 18991

Hash

00000086087467beb26a6f284f8a0c1ac7e828e51b917ee846fafcc64a5c6fc9

Confirmations

21790

Time

2026-10-10 00:24:20 UTC

Median time

2026-10-10 00:15:55 UTC

Transactions

1

Size

2,772

Weight

10,980

Difficulty

0.0035089589

Bits

1e011cfb

Merkle root

0808aeb8c97f913acce8fccba30901838318225c2c7cdba2c9aadfbeaf4cea10

Previous block

000000aa4f2d08367c2901e41677321cbc5e5edc27eeccd055c50766412afa7c

Next block

0000008e91461f32bdb1bfdc35000e31056d4c524a799fc637706e5e79d0b208

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 18991 is below the activation height 20000: nodes do not require this signature, and only log the result of checking it when run with -debug=validation. The block producer adds it from height 18000 on, so that nodes can check it before it is required.

Status

In the form M2 requires, followed by the signet solution push (the classical signature)

Signature

7e7d35fbad6f2eb818ae5453d4c88fe9… (2420 B)

Format version

0x01

Context string

SIGNET/PQBLOCK/EXP0

Block key the nodes require

SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions