Read a document or web page · saved and checkable

✓ This result hasn’t changed since it was saved.

Sent using Zambo

Saved:
What was asked: The request recorded for this receipt.

Zambo is the verifiable work layer for AI.

Observed result

url: https://www.beehiiv.com/pricing content type: text/html word count: 1429 extracted text: Pricing - beehiiv — The newsletter platform built for growth Sign up Product Newsletters Own your subscriber list Podcasts Turn listeners into subscribers Digital Products Sell guides, courses, and more Community Bring your audience together Publish Editor Customization beehiiv AI Automations Polls Grow Recommendations Subscribe Forms Pop-ups Referral Program Magic Links Earn Ad Network Paid Subscriptions Recommendations Digital Products Direct Sponsorships Analyze Analytics A/B Testing Segmentation Surveys Verified Clicks Connect API Integrations Send API MCP Solutions For publishers Creators & Publishers Publisher of a newsletter, podcast, or digital product Newsletter Business Established audiences (75k+ subscribers) Media Companies Editorial brands and newsrooms with a content portfolio Marketing Teams Marketers nurturing an audience to drive pipeline or revenue For advertisers & partners Advertise with us Promote your brand to our audience Become an affiliate partner Earn up to 60% commission on every sale Become a creator partner Explore sponsorships and collaborations Featured stories TIME TIME’s Shift From ESP Headaches to Newsletter-First Workflow Morning Brew How the beehiiv Ad Network drove efficient subscriber growth for Morning Brew Status News Oliver Darcy’s Transformation From CNN Reporter to Media Entrepreneur See all customer stories Resources Learn Blog Help Center Migration Guide Changelog Compare vs. Substack vs. Kit vs. Mailchimp All comparisons Connect Live Events beehiiv Experts Customer Stories Creator Spotlight Featured The State of Newsletters 2026 The latest data, trends and innovations shaping the newsletter industry. Enterprise Ad Network Pricing Log in Get a demo Sign up for free Every plan is built for growth. From your first subscriber to thousands more, beehiiv is the only platform with everything you need to grow and monetize your audience. All plans include Newsletter Website Podcast Community Digital Products Newsletter Website Podcast Community Digital Products Pricing for 250,000+ subscribers Pricing for 1,000 subscribers Yearly (and save) Monthly Free The basics for creators just getting started. $0 Free forever Start for free Upgrade anytime What’s included... Unlimited email sends Industry-leading deliverability Email templates Landing pages Recommendation network API and integrations Lite For note: Text truncated to 2500 chars. Full document is 10389 chars.

This is the saved result preview, not proof that the answer was correct.

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Show technical provenance details

Provenance for every timeline entry

  • EXECUTED BY ZAMBOZambo ran the tool call itself.
  • OBSERVED VIA GATEWAYA Zambo gateway observed request and response bytes from the named external executor. Zambo did not run that external action.
  • LOGGED BY AGENTAn agent or local hook reported the action. Zambo attests that the record is unchanged since logging, not that the action happened as described.

Private agent reasoning, built-in client actions, and direct calls to unrelated MCP servers are not included unless an agent or gateway reports them.

What is an execution receipt?

An execution receipt is a public record of a reported AI agent tool call. Its byte commitment and provenance claim can be checked independently; neither alone authenticates the issuer. Read the canonical definition of an AI agent execution receipt.

What the receipt can and cannot prove

What is this?

Zambo's receipt store reports a tool call and records its result. The SHA-256 commitment covers the exact canonical bytes. The provenance label is bound to v0.4 receipt bytes when that check passes, but no pinned signature or trusted issuer key is checked. An anchor can timestamp a fingerprint; it does not authenticate the issuer.

Access is active

This receipt was created with paid access. Your Day Pass remains active until it expires; no additional Day Pass unlock is needed.

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Show technical verification checks

Verification checks

  • SHA-256 commitment: Checked independently against the exact decoded bytes
  • Provenance binding: PASS; The metadata claim is consistent with the verified receipt bytes; issuer is not authenticated.
  • Metadata binding: PASS; metadata_hash matches the canonical metadata block.
  • Issuer authentication: NOT CHECKED; no pinned signing key or trusted issuer was supplied
  • Signature: NOT CHECKED; no Ed25519 signature or pinned key is supplied
  • Chain: NOT CHECKED; no append-only chain proof is validated
  • Stored timestamp: 2026-10-22T13:39:44.038Z; external immutability is not checked

Get proof like this from your own AI

Add to my AI ·

Get receipts for your own AI work: add zambo.dev/mcp

One URL, no key. Copy the line for your AI and add it yourself in its settings.

  • ClaudeSettings, Connectors, Add custom connector, paste the URL.
    https://zambo.dev/mcp
  • ChatGPTSettings, Apps and Connectors, developer mode, create a connector with this URL.
    https://zambo.dev/mcp
  • GrokAdd a remote MCP server in your Grok client and paste the URL.
    https://zambo.dev/mcp
  • CursorPaste into ~/.cursor/mcp.json.
    {"mcpServers":{"zambo":{"url":"https://zambo.dev/mcp"}}}

Nothing is installed automatically. Full setup guides

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Show receipt data and verification evidence

Committed provenance claim

EXECUTED BY ZAMBO

The metadata claim is consistent with the verified receipt bytes; issuer is not authenticated.

Receipt ID
ee817154-4745-4e56-bcfc-0a8a1b478421
SHA-256 output hash
sha256:e39e06461dd1efafbc3855848da2692a0c1e782f9ee9b1b95cd3d2275e40e3b3
Canonical bytes
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
Timestamp

Bound call context

Receipt schema
0.4
Tool name
pdf_extract
Tool version
4.0.0
Permission scope
public
Caller type
api_key
Caller ID
sha256:a71950e454e3653f41e4ae2d494e7d37c63cb7c91e15762a46f1a0d8027386ed
Declared side effects
none
Side-effects schema
zambo-side-effects/1
Declaration hash
sha256:45aad38f3aa982b9aafe92ecb416ebe98791eddbaf8ab6df0bd08605b7c1bfee

This records what the server-side tool contract declared at call time. It does not independently verify that a downstream side effect happened.

Bound upstream evidence

Status
captured
Evidence SHA-256
sha256:f0930639920c377e5272fb44531296ce8ae5c0fcf8aba1827ecc5a3a5ed69baa
Byte length
360579

Fetch exact evidence bytes

Upstream provenance

This receipt is independently auditable against the named upstream source. This is not a mathematical correctness claim.

  • Source: www.beehiiv.com · queried at: · raw response hash: sha256:f0930639920c377e5272fb44531296ce8ae5c0fcf8aba1827ecc5a3a5ed69baa

Neutral Nostr anchor

Event ID
7aa24d554347f3795364daedfab862a0c59de08e7e550385ffff71668abe98a4
Anchor status
partial
Public key
e13475107d30c918ec664adf2ab1141024a22fb35190f82c9e933704fa49af41

Relay hints: wss://relay.damus.io · wss://nos.lol · wss://relay.primal.net

Schema: zambo-receipt-anchor/1

Anchor envelope bytes:

{"anchored_at":"2026-10-22T13:39:44.038Z","evidence_byte_length":360579,"evidence_sha256":"sha256:f0930639920c377e5272fb44531296ce8ae5c0fcf8aba1827ecc5a3a5ed69baa","evidence_url":"https://zambo.dev/api/evidence/f0930639920c377e5272fb44531296ce8ae5c0fcf8aba1827ecc5a3a5ed69baa","output_sha256":"sha256:e39e06461dd1efafbc3855848da2692a0c1e782f9ee9b1b95cd3d2275e40e3b3","receipt_uuid":"ee817154-4745-4e56-bcfc-0a8a1b478421","schema_version":"zambo-receipt-anchor/1"}

Anchor status "partial": Published to some configured relay targets; publication was not confirmed by every configured relay.

Check this hash yourself

Receipt commitment: commitment matched; issuer, signature and chain not checked. This checks the saved bytes, not whether the answer was correct. Recompute the SHA-256 commitment in your browser. Open the API v2 JSON response to inspect the machine-readable checks. See the Nostr anchor event on a public viewer. The fingerprint is timestamped outside Zambo too.

Embed this receipt

Markdown

[![Verifiable Zambo receipt](https://zambo.dev/api/receipt/ee817154-4745-4e56-bcfc-0a8a1b478421/badge.svg)](https://zambo.dev/run/ee817154-4745-4e56-bcfc-0a8a1b478421?ref=badge)

HTML

<a href="https://zambo.dev/run/ee817154-4745-4e56-bcfc-0a8a1b478421?ref=badge"><img src="https://zambo.dev/api/receipt/ee817154-4745-4e56-bcfc-0a8a1b478421/badge.svg" alt="Verifiable Zambo receipt"></a>

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