Block 21438
- Hash
00000121d1c97f8f40c56524e9d70b16ce9a15d8101616739078162913e7d911- Confirmations
- 20550
- Time
- 2026-10-12 20:35:38 UTC
- Median time
- 2026-10-12 20:27:05 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
2665a7ef95c2462564e443a031c276f90f9ea401e13af2a1eaa96d408e0068c9- Previous block
- 000000ff53c8d640f45c304b4a25d55f078aa8623e9a3fc9bd49b4e89aa375e6
- Next block
- 0000013ca0b5996ac43ed7c23d0ea6291f7e07e90d5920cd386ecfb2ccaeb1f1
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 21438 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
a05aac6e7763def3740c1a52b1b366c3…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 2665a7ef95c2…6d408e0068c9 coinbase | 1 | 2 | 50 |