Endpoint · market dataGETwhaletape.xyz /history/BTC
Backtesting raw material for one market: price, funding and open-interest snapshots we recorded over time, as a series the exchange does not serve retroactively
Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.01 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://whaletape.xyz/history/BTC
Seen
first 35 days ago · last 4 days ago
65 free handshakes
Payment
Pays through
x402
Offered on?
algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Arbitrum, Robinhood Chain, Base, Solana USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.790 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by latency p95 · gap to 1.000 is 0.210: 0.104 uncertain ? + 0.106 short ? · 0.010 to B
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| latency p95costs the most it answered as fast as its class |
0.20 | 0.47 | 0.280 | 0.056 | −0.106 | −0.038 | |
| liveness it answered at all |
0.60 | 1.00 | 0.890 | 0.534 | 0 | −0.066 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.790 | gap to 1.000 = 0.210 · 0.106 short · 0.104 uncertain | 0.790 | −0.106 | −0.104 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.200 × 0.280 latency p95
+ 0.600 × 0.890 liveness
+ 0.200 × 1.000 price stability
= 0.790 → UNRATED: 56 of 30 paid calls weights 2026.09.6 · 56 samples · seed cap_01M1A59NSHG2YDX2HGGBWVZJVP|2026-08-29T09:36:21.969Z|2026.09.6
Verify it yourself
npx teppi-check https://whaletape.xyz/history/BTCcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A59NSHG2YDX2HGGBWVZJVP