Block 21666
- Hash
00000066885cc35f354c4c70483e67f030c274cc0505a072188f7b5939f06be1- Confirmations
- 20366
- Time
- 2026-10-13 02:58:32 UTC
- Median time
- 2026-10-13 02:49:54 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
a7c3e00dc2c5559c7d1179925c10d643b5f84ab47b0ce73434522907577e2a09- Previous block
- 000000dbd70b5d2ea4bb258600e89fd1a367f681f701d5c4291f3a9036266f1e
- Next block
- 00000062b4627db1ac7fe76f393264be4d494fda02118d75553be44c23d15c90
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 21666 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
411c85f79673292160171541601ff2c8…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| a7c3e00dc2c5…2907577e2a09 coinbase | 1 | 2 | 50 |