How many HDB resale flats were registered in Yishun in April 2021?

April 2021.

146Registrations recorded

Ledger rows whose subject key names this town (keys from sg:hdb:YISHUN|), whose attribute is resale_price_sgd, and whose observed month is 2021-04. Each registration seals one such row, so this counts registrations, not re-reads.

Against the last month

1592021-03

1462021-04

A difference of -13 against 2021-03. Both figures come from the same read, asked of each window.

The newest receipt

Receipt	Subject	Observed	Fetched
fc3c117643f70a7462a20395dc28c590b3b18e9085da02e5315bbca9700caa00	sg:hdb:YISHUN\|316B\|YISHUN AVE 9\|4 ROOM\|01 TO 03\|Model A	2021-04-01T00:00:00.000Z	2026-09-30T07:02:51.594Z

The day root

The newest receipt was written on 2026-09-30, and that day's root holds it.

Field	Value
Root	f1011d3102d9193b623fc7a0a4ca013e37c8594ea24d2da93906e6c13f629ba5
State	confirmed 2026-10-02T02:05:24.821Z at block 969,397

This root is held outside the estate. Recompute it from the day's receipts and compare, then check the recorded block.

Where it was read

From the newest 20 rows in this window.

Read from	Observed, the fact's own clock	Fetched, when the estate looked
data.gov.sg	2021-04-01T00:00:00.000Z	2026-09-30T07:02:51.594Z

How the record is kept