⚡ Block #954,636
📦 A stuffed block, a tiny fee bill — NiceHash packs them in tight
June 21, 2026 at 03:34 AM UTC
Block 954636 squeezed 4,585 transactions into its full 1.61 MB frame, hitting right up against the weight limit. Despite all that activity, the total fees paid were just 0.023 BTC — a sign that most of these transactions were lightweight and sent when the mempool wasn't demanding much. It's a neat example of how a 'busy' block and a 'cheap' block can be the same block.
- ⛏️ Mined by NiceHash on June 21, 2026 at 03:34 UTC
- 📬 4,585 transactions — a heavily packed block
- 💸 Total fees: 0.023 BTC (median rate: ~1.7 sat/vB, well below typical busy-period rates)
- 📐 Block size: 1.61 MB — filled right to the weight limit
- 🔤 Coinbase message: 'øþZÍ}2/NiceHash/' (a miner's personal signature on the block)
Coinbase message
left by the miner
øþZ Í}2/NiceHash/
The coinbase is the first transaction in a block — miners can embed a short message in it.
Block details
from mempool.space
- Mining pool
- NiceHash
- Transactions
- 4,585
- Total fees
- 0.023 BTC
- Subsidy
- 3.125 BTC
- Median fee
- 2 sat/vB
- Block size
- 1.61 MB
Why our analysis flagged it
score 37/100
- Heavy block: 4,585 transactions+16
- Unusually low fees: 0.023 BTC+12
- Block mined right up to the weight limit+8
Scores are computed from on-chain facts (a deterministic heuristic), then a story is written for blocks that clear our curation threshold.
This day in Bitcoin history
reward era 5
This block sits 114,636 blocks after the 4th halving and 95,364 blocks before the 5th — Bitcoin’s 5th reward era.
- 2012-11-281st halving14y before this block
- 2016-07-092nd halving10y before this block
- 2017-12-172017 ATH (~$19.5k)9y before this block
- 2020-05-113rd halving6y before this block
- 2021-11-102021 ATH (~$69k)5y before this block
- 2024-03-142024 ATH (~$73k)2y before this block