feat: migrate price feeds from Pyth to Binance + Hyperliquid, replace SPYX with SP500

[Thykof]

Why

Pyth Pro is putting its API behind a paid key, including the history endpoint the validator scores against. All price feeds move to keyless venues, split per asset.

The feed map

One canonical pair of maps (BINANCE_ASSET_MAP, HYPERLIQUID_ASSET_MAP) shared by name between the validator (price_data_provider.py) and the reference miner (price_simulation.py) — a test asserts they stay equal. Dispatch: Binance → Hyperliquid → Pyth (SPYX rollout tail).

Asset	Feed
BTC, ETH, SOL, XRP	Binance spot (BTCUSDT, …) — klines for scoring, price ticker for miner spot
HYPE	Hyperliquid spot HYPE/USDC (@107)
XAU, NVDAX, TSLAX, AAPLX, GOOGLX, SP500, SPCX, WTIOIL	Hyperliquid perps (xyz:*)

What changed

• SPYX is retired and replaced by a new asset SP500 (xyz:SP500, S&P 500 index scale, ~10x SPYX's level) rather than re-pointed: a 10x step inside one stored series would poison every vol/return lookback crossing it.
• Rollout tail: prompting swaps at deploy (prompt_config), but SPYX stays in competition_config, ASSET_COEFFICIENTS, SIGMA_MAP, and a minimal Pyth path (validator history + miner Hermes spot) so in-flight requests are scored and SPYX scores age out of the 10-day moving-average window. SP500 inherits SPYX's coefficient and sigma. A follow-up cleanup release deletes SPYX and all remaining Pyth code ~10 days after deploy.
• New Binance klines path in the validator mirrors the Hyperliquid one, including the settlement-witness guard (Binance prints klines eagerly, so the semantics match).
• Pyth Lazer support (PYTH_API_KEY, LAZER_FEED_ID_MAP, .env.example entry) and the scripts/pyth-*.py discovery scripts are removed entirely.

Miner-visible (announcement scheduled for 2026-07-21)

• New asset symbol SP500 prompted on Commodities/Equities 24h from the deploy; SPYX prompts stop.
• Majors are scored on Binance spot klines; HYPE on its Hyperliquid spot market; equities/commodities on Hyperliquid perps.
• Reference miner drops PYTH_API_KEY/Lazer/Hermes (Hermes kept only to serve SPYX prompts from laggard validators during rollout).

Tests

• Mocked coverage for all three paths (Binance klines via session mock, Hyperliquid candleSnapshot, Pyth tail), settlement-guard tests per path, per-venue routing tests, and live per-asset history checks against the real endpoints — the live tests double as a tripwire for symbol renames (e.g. HIP-3 dex redeploys).
• Full suite: 224 passed + 15 live subtests; black --check / flake8 clean.

🤖 Generated with Claude Code

[Copilot]

Pull request overview

This PR migrates the subnet’s realized-price sourcing away from Pyth (due to Pyth Pro requiring paid keys for historical access) to keyless venues: Binance spot for crypto majors and Hyperliquid for spot/perps, while retiring SPYX in favor of SP500 (with a temporary SPYX “rollout tail” maintained for scoring continuity).

Changes:

• Implement venue routing and data download paths in the validator: Binance spot klines (BTC/ETH/SOL/XRP), Hyperliquid candles (HYPE + equities/commodities), and a reduced Pyth Pro history path for SPYX rollout tail.
• Update miner reference implementation to fetch spot prices from Binance/Hyperliquid and keep Hermes only for SPYX tail; remove Lazer/API-key support and discovery scripts.
• Replace SPYX prompts/docs/tests with SP500 while keeping SPYX coefficients/sigmas and validator Pyth history support temporarily.

Reviewed changes

Copilot reviewed 15 out of 15 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
tests/utils.py	Updates live-test timing rationale from Pyth windowing to Hyperliquid candle retention.
tests/test_price_data_provider.py	Reworks mocks and adds coverage for Binance + Hyperliquid + SPYX Pyth-tail paths, including settlement-guard assertions and live per-asset checks.
tests/test_moving_average_unit.py	Switches “realistic” test asset lists from SPYX to SP500.
tests/test_miner_price_simulation.py	Updates miner spot routing tests (Binance/Hyperliquid) and keeps Hermes-only SPYX rollout-tail coverage; asserts miner/validator maps match.
tests/test_forward.py	Updates comment to reflect Hyperliquid as the live history endpoint hit during tests.
synth/validator/prompt_config.py	Updates prompt asset list to use SP500 instead of SPYX.
synth/validator/price_data_provider.py	Adds Binance klines and Hyperliquid routing; reduces Pyth support to SPYX-only rollout tail; keeps settlement-witness guard semantics.
synth/validator/moving_average.py	Adds SP500 coefficient while retaining SPYX for rollout tail.
synth/validator/competition_config.py	Adds SP500 to the Commodities/Equities competition while retaining SPYX for tail continuity.
synth/miner/simulations.py	Adds SP500 sigma (same as SPYX) and documents rollout tail intent.
synth/miner/price_simulation.py	Implements Binance ticker + Hyperliquid candleSnapshot fetching; removes Lazer/API key flow; keeps Hermes for SPYX only.
scripts/pyth-listing.py	Removes obsolete Pyth listing script.
scripts/pyth-lazer-listing.py	Removes obsolete Lazer discovery/probing script.
README.md	Updates competition asset lists, scoring feed documentation, and historical changelog entry for the migration + SP500 swap.
.env.example	Removes PYTH_API_KEY env var example since Lazer support is removed.

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