Ideology

Check this record

This is a billionaire-funded initiative designed specifically to undo the California Billionaire Tax, Prop. 40.

Every vetted record has a fingerprint that two keys signed and a timestamp authority stamped. The signed record, the keys and the receipts are in a public log, so you can check the signed copy there without relying on this site, and then check that this page shows that copy.

Vetted · Oct 3, 2026

Both keys signed this exact version, and it is in the public log.

Fingerprint

27cb96fbf7dc3ff9cba37773a7c77bfd824b0a9f635a0c08093ec19fcee15f01

A SHA-256 hash of the record as published. Changing one character changes it.

Signatures

Independently checked: signed by the site's service key, which only the publishing system holds.

Owner approved: signed with the owner's key, which the public log lists.

Technical details
Service key id:
service:a3f979541aee7826
Owner key id:
SHA256:h82SrxLU1wYr+jpy4Vl9/9iQlAO+HQX1umVBdhy/Ss0
Owner keys file in the public log:
integrity/keys/owner.allowed_signers

Log entry

Entry 9, published Oct 3, 2026. Each entry includes the fingerprint of the one before it, so no earlier entry can change unnoticed.

Open entry 9 in the public repository
Merkle proof

These hashes lead from this record's fingerprint to the entry's root: 510fa346bc644ee6942848357c92ed2869f227a8977c9bcc638184f371d8cee4

  1. 27d5e5356d4a440379c5ae03b84862b30410938b357ea324859b8f0bc1c04f44
  2. c0639f1feecb886a020197f4b4f23e3833d05d5eeba5596926e9676236742c02
  3. 88aaf48aa818b03efa6fe888954952aef9ca6812a9f7b2c6645e963b499ee3f1
  4. b3c8534bdd8c231849269c8ccdb08b80b9efb478347600af7660452a33f665a1
  5. f1b3ed3845674a4203d7f8f0dd7d660be14afe2219829fa711d48f2357eb2d55
  6. 501380cb2bdf3d78d0eb3521019289180d3bc10cb24193e13bec8a9e8b297d94
  7. 9b8ab8130fcfeac8d80c79834555c9c5576e160a7aaf347dc90223422cabe0fb

Outside witnesses

  • Timestamp authority (RFC 3161)TimestampedReceipt
  • OpenTimestamps (Bitcoin)Bitcoin timestamp pendingReceipt

Versions

  1. Entry 9 · Oct 3, 2026 · current
    27cb96fbf7dc3ff9cba37773a7c77bfd824b0a9f635a0c08093ec19fcee15f01
  2. Entry 2 · Oct 3, 2026 · replaced on Oct 3, 2026
    2bf74421e6fd1e8dbd6e09eeeb733e91eb1b8b78e2d6de05bbba357b7c0087c5

Judgments behind this record

  • Verdict on the claim

    Call: Missing context

    On funding, the FPPC top-contributor list shows Building a Better California, whose top donors the FPPC lists as Sergey Brin and L. John Doerr III, gave $89,800,000 of the $89,822,537.26 from the top contributors to the main committee supporting Proposition 42 on the FPPC list. On purpose, the measure's findings and statement of purpose describe protecting retirement savings and personal property and requiring new taxes to apply only prospectively; they do not mention Proposition 40. Section 2(a)(2) bars a tax "imposed on a taxpayer based upon their residency status on a date prior to the effective date of the tax", and the Analyst says Proposition 40 would tax billionaires who were California residents on January 1, 2026, so Proposition 40 falls within that wording on its face. Section 5 says an initiative on the same ballot that taxes ownership of such assets, or that taxes based on past conduct or status, is deemed in conflict and is void if Proposition 42 receives more affirmative votes. The guide does not state whether Proposition 40 is covered, and the "designed specifically" part is a statement about intent that the official documents neither confirm nor refute.

    Made by a sourcer · checked by an independent checker · approved with the owner's key

    Technical details
    Recorded call:
    missing-context
    Author id:
    sourcer:ca-2026-measures
    Checker id:
    checker-judgments-ca-2026
    Owner key id:
    SHA256:h82SrxLU1wYr+jpy4Vl9/9iQlAO+HQX1umVBdhy/Ss0

    Vetted · Oct 3, 2026

    Check this judgment

Check it yourself

Copy the public log and run its script. It reads only the public log: the signed copy of this record, the judgments behind it, the keys and the receipts. It recomputes each fingerprint and checks the proof, both signatures and the timestamps. It checks the signed copy in the log, not the text on this page:

git clone https://github.com/Macpire/ideology-integrity-log
cd ideology-integrity-log
npx tsx integrity/verify-record.ts --log ca-2026 ca-prop-42-claim-4 --repo .

To check that the text this site serves is that signed copy, add the site's address. Only this check ties the log to what you read here:

npx tsx integrity/verify-record.ts <site> ca-2026 ca-prop-42-claim-4 --repo .

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