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Data discipline

A reference earns trust as much by what it refuses to publish as by what it shows. Cavport holds to a single standard: no fabricated quantities, no synthetic history, no retail figure dressed up as production value, and no quality grade invented from a marketing word. The list below is what Cavport deliberately does not show until it is verified. It is published openly, because the discipline is the product.

  • Any species split of the 2025 output that is not resolved from a primary source (today about 64% is unresolved).
  • Any country production figure based on assumption, or any figure rescaled to match a world total.
  • Global Caviar Production Value as a published number. Today it is an internal estimate with a known downward bias.
  • The retail-equivalent proxy without its proxy label, or placed next to production value without clear separation.
  • Any “market size” figure presented as Cavport's own.
  • Any price change, arrow or index line before two qualifying snapshots exist for that cell. There is currently one snapshot.
  • The caviar price index, or the production and deflator indices, as live series.
  • Origin-specific prices. Today about 16% of listings state an origin, all from seller text.
  • Quality grades or grain classes that were not issued by the external certifier.
  • Any “Cavport Reference List”, CQR or CMR naming applied to public retail data.
  • Liquidity measures built from listing counts, or demand indices before real platform activity exists.
  • CITES quantities presented as production or consumption, or biomass presented as caviar tonnage.
  • Trade unit values presented as market prices.
  • The earlier retail-regression origin premia and the earlier modelled species shares.

Each item becomes visible the moment its evidence exists: a second snapshot unlocks change and index lines, European first-sale cells unlock production value, certifier-issued grades unlock quality fields, and tier B production observations unlock species and country output. Until then, the space stays empty rather than filled with an estimate wearing a confident face.

This page is the public face of the methodology's suppression rules. See Methodology and Governance.

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Cavport publishes historical market context and public-market observations. It does not set or recommend prices, provide appraisals, determine customs value or make legal findings. Public Retail Monitor figures are based on public retail asking prices observed on a defined date and are separate from Cavport Verified References, which are pre-launch. Not a regulated financial benchmark at launch. © 2026 Cavport.