Anchor feed · Scaling protocol

BTC/USD — the consensus band, round by round

How closely Flare's registered providers agreed on this price in each 90-second voting round, and where our own submission landed. Pick a range, drag across the chart to zoom, hover for exact values.

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Seraphim FTSO submission · consensus median · interquartile range

FigureLive data, not a schematic: BTC/USD anchor rounds, one point per 90-second voting round, with Seraphim FTSO's own submission drawn on top. The plate opens on % deviation — every band redrawn relative to that round's median, in PPM — because the interquartile range and the reward band are a fraction of a percent wide and collapse onto the median line against a moving price. Press Price to read the feed in its own units instead. Without JavaScript the plate shows the last 96 rounds; with it, the range buttons load up to 14 days from the same source. data as of 2026-09-18T09:16:53Z.

How tightly the field agreed

120 rounds

Typical distance from the median · middle 50%

±16.1PPM half-width · the band allows ±500

the median±16.1 of ±500 PPM allowed±500 PPM · band edge

Latest medianround #1458809: 78,296.25
Tightest roundhalf-width: ±5.4 PPM
Widest roundhalf-width: ±87.6 PPM

Half-widths here; the register below prints the full Q1–Q3 spread. Ending 2026-09-18 09:15 UTC.How the band is set →

Agreement profile

0 – 95 PPM

oldest · #1458690median 16.1 PPMnewest · #1458809

FigureLive data, not a schematic: how far from the median the middle 50% of providers sat, in each of the 120 rounds this page holds — the interquartile range as a half-width, round by round. The dashed line is the median of those values. Tighter agreement means a harder round: the field is crowded around one number and being close is no longer enough to stand out. The secondary reward band on BTC/USD allows ±500 PPM, about 31× that median — so the money on this feed is contested inside the primary band, which is this interquartile range, not at the outer edge.

What am I looking at?

Gold line — the consensus median, the price the providers collectively agreed on that voting round. It is the number every submission is scored against.
Inner shaded band (IQR) — the middle 50% of providers, from the first quartile to the third. The narrower it is, the more closely the field agreed.
Outer shaded band — the wider secondary reward band. A submission inside it earns the round's accuracy rewards; a submission outside it earns nothing for that round.
% deviation view — every band redrawn relative to the median, in parts per million, so the spread stays legible even while the price is trending.
Zoom — on the no-JavaScript snapshot these set the vertical window: IQR (how tightly providers agreed), Reward band (the fixed ±500 PPM frame), or Full (including the low/high outliers). With JavaScript on, the axis scales to the data and you drag across the plot to zoom into a stretch of rounds.
Our own submission — the deep-gold markers are Seraphim FTSO's submitted price each round. Hugging the median is what accuracy looks like; it reads most clearly in the % deviation view.
A narrow band means the field agreed closely, which means accuracy is harder that round — and a provider that stays inside it anyway is doing real work. That is the whole argument of this site, drawn from live data.

Recent voting rounds

30 most recent · 90 s each

Swipe the table sideways for all 9 columns →

Round	Time (UTC)	Median	Q1	Q3	IQR width	Our deviation	Secondary band	Low/High
#1458809	09-18 09:15:00	78,296.25	78,295.47	78,297.89	30.9 PPM	—	78,257.1 – 78,335.4	78,287.37 / 78,347.03
#1458808	09-18 09:13:30	78,317.07	78,313.82	78,320.42	84.3 PPM	—	78,277.91 – 78,356.23	78,289.52 / 78,346.49
#1458807	09-18 09:12:00	78,272.86	78,270.8	78,274.31	44.8 PPM	—	78,233.72 – 78,312	78,266.87 / 78,365.89
#1458806	09-18 09:10:30	78,340.04	78,337.22	78,341.26	51.6 PPM	—	78,300.87 – 78,379.21	78,323.62 / 78,381.18
#1458805	09-18 09:09:00	78,379.18	78,378.24	78,380.35	26.9 PPM	—	78,339.99 – 78,418.37	78,265.76 / 78,423.46
#1458804	09-18 09:07:30	78,242.99	78,242.4	78,245.12	34.8 PPM	—	78,203.87 – 78,282.11	78,228.52 / 78,295.61
#1458803	09-18 09:06:00	78,279.13	78,275.92	78,280.26	55.4 PPM	—	78,239.99 – 78,318.27	78,233.38 / 78,296.31
#1458802	09-18 09:04:30	78,223	78,221.2	78,225.14	50.4 PPM	—	78,183.89 – 78,262.11	78,212.15 / 78,278.87
#1458801	09-18 09:03:00	78,266.47	78,265.47	78,266.97	19.2 PPM	—	78,227.34 – 78,305.6	78,235.11 / 78,344.58
#1458800	09-18 09:01:30	78,209.68	78,208.41	78,210.75	29.9 PPM	—	78,170.58 – 78,248.78	78,179.09 / 78,251.5
#1458799	09-18 09:00:00	78,168.19	78,166.57	78,169.39	36.1 PPM	—	78,129.11 – 78,207.27	78,141.82 / 78,199.62
#1458798	09-18 08:58:30	78,098.83	78,094.88	78,100.43	71.1 PPM	—	78,059.78 – 78,137.88	78,087.21 / 78,120.26
#1458797	09-18 08:57:00	78,030.67	78,030.45	78,031.72	16.3 PPM	—	77,991.65 – 78,069.69	78,008.12 / 78,072.51
#1458796	09-18 08:55:30	77,998.94	77,997.88	77,999.16	16.4 PPM	—	77,959.94 – 78,037.94	77,984.23 / 78,044.71
#1458795	09-18 08:54:00	77,969.08	77,967.41	77,970.12	34.8 PPM	—	77,930.1 – 78,008.06	77,948.54 / 78,001.89
#1458794	09-18 08:52:30	77,918	77,914.37	77,922.49	104.2 PPM	—	77,879.04 – 77,956.96	77,902.17 / 77,946.28
#1458793	09-18 08:51:00	77,904.96	77,903.87	77,906.01	27.5 PPM	—	77,866.01 – 77,943.91	77,901.86 / 77,942.09
#1458792	09-18 08:49:30	77,937.01	77,935.45	77,937.91	31.6 PPM	—	77,898.04 – 77,975.98	77,927.26 / 77,977.72
#1458791	09-18 08:48:00	77,919.22	77,918.88	77,920.18	16.7 PPM	—	77,880.26 – 77,958.18	77,910.14 / 77,965.01
#1458790	09-18 08:46:30	77,913.74	77,912.17	77,914.7	32.5 PPM	—	77,874.78 – 77,952.7	77,898.17 / 77,949.01
#1458789	09-18 08:45:00	77,903	77,902.2	77,903.85	21.2 PPM	—	77,864.05 – 77,941.95	77,896.07 / 77,935.28
#1458788	09-18 08:43:30	77,906.29	77,904.77	77,906.73	25.2 PPM	-16.2 PPM	77,867.34 – 77,945.24	77,859.77 / 77,946.32
#1458787	09-18 08:42:00	77,850.15	77,848.45	77,851.77	42.6 PPM	-24.5 PPM	77,811.22 – 77,889.08	77,844.42 / 77,899.19
#1458786	09-18 08:40:30	77,852.75	77,851.91	77,853.53	20.8 PPM	-3.2 PPM	77,813.82 – 77,891.68	77,845.95 / 77,887.39
#1458785	09-18 08:39:00	77,878.85	77,874.36	77,880.64	80.6 PPM	-17.2 PPM	77,839.91 – 77,917.79	77,871.39 / 77,918.82
#1458784	09-18 08:37:30	77,908.17	77,907.1	77,909.1	25.7 PPM	+32.0 PPM	77,869.22 – 77,947.12	77,900.61 / 77,942.79
#1458783	09-18 08:36:00	77,896.39	77,894.95	77,897.84	37.1 PPM	-9.9 PPM	77,857.44 – 77,935.34	77,888 / 77,957.41
#1458782	09-18 08:34:30	77,929.21	77,928.96	77,930.07	14.2 PPM	+32.5 PPM	77,890.25 – 77,968.17	77,918.77 / 77,979.51
#1458781	09-18 08:33:00	77,868.25	77,867.06	77,869.57	32.2 PPM	-0.3 PPM	77,829.32 – 77,907.18	77,860.42 / 77,935.23
#1458780	09-18 08:31:30	77,886.08	77,885.73	77,887.5	22.7 PPM	+6.0 PPM	77,847.14 – 77,925.02	77,882.76 / 77,938.03

All 30 rounds are in this frame

The register scrolls inside its frame — keep scrolling in the table for the rounds below

Rounds run newest first. Q1 and Q3 are the quartiles of all submitted values; the secondary band is the pay/no-pay boundary for the round. How a feed forms, from venue to median →

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