Block 21555
- Hash
000000acaeac893cf2a263fe0de1847406ac9fe4aaebc5d305b829e4ed508176- Confirmations
- 19227
- Time
- 2026-10-12 23:49:43 UTC
- Median time
- 2026-10-12 23:41:20 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
60bbd65fba45f0e1d005b7635f845f239fe9dfef0665b915169fdcf363196e6e- Previous block
- 0000010ca481d8e8a9f2d75bf3ebe620fafe097324a594605fd3833dd4c1e2d0
- Next block
- 000000fcfb0a5db3deedd57b8783963a5e2773bd00632c937d1d96d3068f26d6
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 21555 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
23a0aa12a958a1a1fc76aa77b101439c…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 60bbd65fba45…dcf363196e6e coinbase | 1 | 2 | 50 |