Block 21516
- Hash
00000087e85718c72165514a26c2a6b160ea7e218acf29778369acf5c636aef8- Confirmations
- 20005
- Time
- 2026-10-12 22:44:50 UTC
- Median time
- 2026-10-12 22:36:34 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
3c5df614745d2d3d7906cfdbee0d23955a0672da9ba186048a941832f94a665e- Previous block
- 000000d27eedc3143f21a4473073d6025f1a80329c825d5c198e67b86acf407d
- Next block
- 0000013413d2ed6d69f25dc5b4500b12eaf04af20312e72644adbb3c55fdb76b
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 21516 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
f87837dbdd5db2c902d918650ce810b8…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 3c5df614745d…1832f94a665e coinbase | 1 | 2 | 50 |