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PreStocks guide tutorial

How to read a PreStocks attestation report

An attestation report is a snapshot: on one date, a reviewer checked PreStocks' documents and confirmed that minted tokens were covered. Here's how to read one and check it against the chain.

  • 6 min tutorial
  • Checked 28 Sep 2026
  • By StonkBuilder Community
Best for
Holders who want to check the backing claims themselves
You'll need
  • The report PDF from the token's company page
  • The token's page on an explorer
Cost
Free
Anthropic report (PDF)

Worked example

The Anthropic report, field by field

Anthropic PreStocks · Attestation Report

1Attesting entity
BlockOffice Pte. Ltd.
1Reviewer
Chartered certified accountant (ACCA)
Referenced company
Anthropic, PBC
Token address
Pren1F…Lkhw
2Report date
24 July 2026
3Mintable token supply
7,384.00
3Minted token supply
7,383.88
4Scope
Review of documents provided; not a statutory audit

1 Who signed · 2 As of when · 3 Covered or not · 4 What it is and isn't. Figures from the report linked on prestocks.com/anthropic.

Step by step

  1. Find the report

    On prestocks.com, open the company page and look under Transparency. On 28 Sep 2026 reports were linked for SpaceX, Kalshi, Polymarket and Anthropic.[1]

  2. Check who signed it

    Note the attesting entity, the reviewer and their registration number. All four current reports are by BlockOffice Pte. Ltd.[2][3][4][5]

  3. Check the date

    A report is true only as of its date. Anything minted since isn't covered.

  4. Read the two supplies

    Mintable supply is the most PreStocks may issue against its off-chain backing; minted supply is what was in circulation. Minted should be at or below mintable.[2]

  5. Compare with today

    Open the token on an explorer and note today's supply. If it's well above the attested figure, tokens were minted after the report.

  6. Read the scope

    Each report calls itself an independent review of documents PreStocks provided, not a statutory audit, and none names the holding entities.[2]

Anthropic report (PDF)

Good to know

  • The Anthropic report (24 Jul 2026) shows 7,383.88 tokens minted against 7,384.00 mintable.[2]
  • Each report says one token represents economic exposure equal to one share.[2]
  • SpaceX's report counts post-split tokens (43,713.43 minted). An explorer that ignores the display multiplier shows a fifth of that.[3][6]

What a clean report does and doesn't tell you

A report showing minted supply at or below mintable supply tells you PreStocks' documents covered the tokens in circulation on that date. It doesn't tell you who the holding entities are, whether they're sound today, or anything about tokens minted afterwards.[2] That's why the date and today's supply matter as much as the tick.

Sources

  1. Anthropic on PreStocks prestocks.com/anthropic
  2. Anthropic PreStocks attestation report (24 Jul 2026) prestocks.com/documents/anthropic-prestocks-attestation-report.pdf
  3. SpaceX PreStocks attestation report (17 Jun 2026) prestocks.com/documents/spacex-prestocks-attestation-report.pdf
  4. Kalshi PreStocks attestation report (15 Jul 2026) prestocks.com/documents/kalshi-prestocks-attestation-report.pdf
  5. Polymarket PreStocks attestation report (15 Jul 2026) prestocks.com/documents/polymarket-prestocks-attestation-report.pdf
  6. SpaceX PreStocks mint on Solscan solscan.io/token/PreANxuXjsy2pvisWWMNB6YaJNzr7681wJJr2rHsfTh

Checked on 28 Sep 2026. PreStocks changes fees, tokens and terms; the linked pages and the chain are the source of truth.

Independent community guide by StonkBuilder. Not affiliated with, endorsed by, or operated by PreStocks or any company it references. Nothing here is financial advice or an offer to buy or sell anything. PreStocks are not available in the U.S., to U.S. persons or in other prohibited jurisdictions. Checked on 28 Sep 2026; prestocks.com and its terms are the source of truth.