Block 19221

Hash

0000007c931a8251cbe9b683f7fb40fa9226314678f74e348ea7eb6990fd640a

Confirmations

22786

Time

2026-10-10 06:56:07 UTC

Median time

2026-10-10 06:47:57 UTC

Transactions

1

Size

2,772

Weight

10,980

Difficulty

0.0035089589

Bits

1e011cfb

Merkle root

6f9f6cee0191d9cd6ba747a51650f72632281fdeddbcba77307596966181f783

Previous block

000000cf40bc9eb07551bc9379ef6eb0fe3452ee84bd79e1989fc4c94b1a15c4

Next block

0000011b67783987dcb26845023ee0f49e2ae568257323386ac21c7d321b40c1

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 19221 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

b19da9102e7e63094efe8aa1e9505365… (2420 B)

Format version

0x01

Context string

SIGNET/PQBLOCK/EXP0

Block key the nodes require

SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions