Block 21821
- Hash
00000095fb80a4202e1dcf157d4e14fc04d15541f6e33ca7dbdc8658d099399f- Confirmations
- 19886
- Time
- 2026-10-13 07:15:59 UTC
- Median time
- 2026-10-13 07:07:54 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
f2bffb7c2a62220a693844d4f18907079e53beb0383b3e1e8ce9ceb0964ed104- Previous block
- 0000010eafe700692aec4c9e52b022e7a9165c050c2bcf10ea20087e0e9af8df
- Next block
- 0000002f11259adb6e01b7d02f0cc8a216dcf1e87b57f719035ec742f56a478f
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 21821 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
5c5f3f9567a3bb22df5dcb12320661f9…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| f2bffb7c2a62…ceb0964ed104 coinbase | 1 | 2 | 50 |