Data Coverage
What SilphCo tracks — marketplaces, graders, games, and freshness
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SilphCo blends on-chain and off-chain sales into one clean dataset — the raw material behind the SilphCo Price, momentum signals, graded gem rates, and set- and card-level volume analytics. On-chain sales are the primary source when they are fresh; off-chain comps from the paper market fill the gaps when on-chain history is stale or missing.
On-Chain MarketplacesLink copied!
Sales from these marketplaces are recorded on-chain and cryptographically verified — the transaction hash proves each sale happened at the stated price:
- Courtyard (Polygon)
- Magic Eden (Solana)
- Collector Crypt
- Phygitals
- Beezie
Off-Chain MarketplacesLink copied!
Off-chain sources capture the traditional paper market — completed sales that never touch a blockchain:
- eBay
- TCGPlayer
- Cardmarket
- PokemonPriceTracker
Graders & PopulationsLink copied!
SilphCo tracks grading populations for the three major grading companies — PSA, CGC, and BGS. Population data powers the platform's graded gem rates and cross-grade inference, as described in the pricing methodology.
GamesLink copied!
The Pokémon TCG is the platform's primary coverage. The One Piece TCG is also tracked — pass ?game=onepiece on API requests to query One Piece sets, cards, and sales.
FreshnessLink copied!
Ingestion runs continuously across every tracked marketplace. Live per-marketplace freshness is published on the Status page — check there for the current state of each source rather than relying on static intervals. To see how fresh sales become the SilphCo Price, read the pricing methodology; to pull the data yourself, start with the API getting-started guide.