Block 21253
- Hash
000000f22d2555d3c37235a55036a4b15f3f7e054f90564b10e9d7c15c606679- Confirmations
- 19748
- Time
- 2026-10-12 15:22:20 UTC
- Median time
- 2026-10-12 15:13:41 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
ed5f0b48be4886bcacf3f3a51f1f013cb8424a03331e6ee9c259fcce3e7c78e7- Previous block
- 0000011ebe2399c25d3ed0423e650899b48e7d7067c514dab45e53000522441c
- Next block
- 0000009aa1418fbcd566bb22155625fe3f2ca0d485f4b02d05148ee497e2dc86
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 21253 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
920f19d88c9eac9b5cb251bc33462406…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| ed5f0b48be48…fcce3e7c78e7 coinbase | 1 | 2 | 50 |