This desk preserves the Timechain theme from the design: block height, block hash, timestamps, fees, difficulty progress and halving estimates. A live dashboard reached in a browser is not a reproducible numeric source unless the relevant observation is captured.
The notebook / 01
What a network snapshot needs
Name the network, observation method and collection time. Pair height with the block hash so the checkpoint can be identified. Fee estimates require units, confirmation targets and an estimator; difficulty progress and a projected halving date require a stated calculation.
The notebook / 02
An estimate stays an estimate
Bitcoin’s subsidy halving is tied to block height. A calendar estimate depends on the rate of future block production and can move. The protocol event and a projected date should not share one unlabeled field.
The notebook / 03
The reference tool
Timechain Calendar describes its product as a Bitcoin protocol visualizer and explorer. We link the project as a reading tool; this site does not claim an integrated or independently verified copy of its live dashboard.