Truestamp review
by Truestamp, Inc.Data anchoring and timestamping
Hash timestamping with proofs committed to Stellar and Bitcoin and an open-source offline verifier; free plan only for now.
- Free plan
- No card needed
- Self-serve
- Tiered
- Prices hidden
What you're paying for
- Saves engineering time (main value)
- Easy to adopt
Proofs that verify offline with an open-source CLI, committed to two public chains, and free for 50 items a month.
Truestamp batches submitted hashes into Merkle trees on its own ledger and commits that ledger to both Stellar and Bitcoin. Each item gets a proof bundle that the open-source CLI checks offline, without an account or a call to Truestamp. Only hashes reach the chains, and submitted claims can be redacted later. It suits individuals and small teams who want strong, portable proofs before paid tiers open.
- Offline, open-source verificationThe CLI is a single static binary, open source, that verifies a downloaded proof fully offline, even after the item is deleted from Truestamp.Evidence: CLI page (2026-10-15)
- Two public chainsEach block of the internal ledger is committed in epochs to Stellar (memo hash) and Bitcoin (OP_RETURN).Evidence: Knowledge base: the epoch and block commitment (2026-10-15)
- Redaction and deletionSubmitted claims can be redacted, and the terms say deleting content erases the mappings that tie on-chain hashes to you.Evidence: Home page FAQ and terms (2026-10-15)
- Best for
- Individuals and small teams who want portable, offline-verifiable proofs for a modest number of items a month.
- Good to know
- Paid tiers are not on sale yet, so volumes above 50 items a month need an administrator override.
How Truestamp compares
Against 3 other products we reviewed in Data anchoring and timestamping: what you pay for with each, the five access facts, the plan limits we recorded and each review's bottom line. The note under the table says how each one was checked.
| Metric | Truestamp | Hedera Consensus Service | OriginStamp | Bernstein |
|---|---|---|---|---|
| What you're paying for | Saves engineering timeProofs that verify offline with an open-source CLI, committed to two public chains, and free for 50 items a month. | Worth the priceOrdered, consensus-timestamped records on a public ledger at a published $0.0008 per message, with no contract or vendor account. | Saves engineering timeAnchor your hashes to Bitcoin and Ethereum through one REST call, without running wallets, nodes or Merkle batching yourself. | Compliance includedCourt-oriented proof of authorship for IP files: Bitcoin anchoring plus EU qualified timestamps, without the vendor seeing your files. |
| Overall score | 3.5 | 4.8Best | 3.8 | 3.7 |
| Free option | Free plan | Paid only | –Not measured | Paid only |
| Card to start | No card needed | –Not measured | –Not measured | –Not measured |
| Getting access | Self-serve | Self-serve | Sales call required | Self-serve |
| Starter priceCheapest paid plan | $0 | $0.0008/message | –Not measured | $54/mo |
| Pricing model | Tiered | Usage-based | Custom quote | Tiered |
| Pricing page | Prices hidden | Public prices | Prices hidden | Public prices |
| What it anchors to | Stellar and Bitcoin (epoch roots of its own ledger) | Hedera public ledger (messages on a topic) | Bitcoin and Ethereum (Merkle root per batch) | Bitcoin, plus EU and China timestamp authorities |
| Billing unit | Items a month per plan; paid tiers not on sale | $0.0008 per message, paid in HBAR | Offer based on timestamps and proofs | Registration credit (one project version, up to 99 files) |
| Free option | 50 items a month, 90-day retention | Testnet only | Free web tool for single proofs; test API key on request | None; certificate validation is free |
| Reference scenario (100,000 hashes/mo) | No plan on sale | $80, one hash per message, computed | Priced by sales | Not offered (no API) |
| Proof you keep | Self-contained proof bundle (JSON or binary) | No proof file; records on mirror nodes | Downloadable certificate or raw proof | PDF certificate |
| Verify without the vendor | Open-source CLI, offline | Open-source mirror node you can run | Manual steps documented | Manual steps documented; browser validator |
| Only the hash leaves your systems | Yes; content can also be redacted | Yes, you choose the message content | Yes | No; files uploaded encrypted |
| Qualified timestamps (eIDAS) | No (terms say not qualified) | No | eIDAS compatibility on request | EU qualified on Scale and Enterprise |
| SOC 2 / ISO 27001 | Not stated | Node data centres must be SOC 2 Type 2 | Not stated | Not stated |
| API and webhooks | REST, GraphQL, CLI, MCP; webhooks on paid tiers | SDKs, mirror node REST and gRPC; no webhooks | REST API, batch hashes, webhooks | None |
| SSO | Not listed | Not applicable (key-based accounts) | Not listed | Enterprise plan, one-time setup fee |
| Bottom line | From its public pages, Truestamp has the strongest proof portability here: two chains, self-contained bundles and an open-source offline verifier. Only the free plan can be used today. | From its public pages, HCS is the cheapest way here to put hashes on a public ledger at a price you can compute. You build the proof handling yourself, and there is no plan, contract or vendor audit report. | From its public pages, OriginStamp is a long-running anchoring API with two chains, batching and webhooks. The price is an offer, and a few docs pages describe an older anchoring method. | From its public pages, Bernstein is the most legally oriented option here, with EU qualified timestamps on a self-serve plan. It is a web app for IP files, not an anchoring API, from $54 a month. |
Evidence: Truestamp: facts checked 2026-10-15 from its public sign-up and pricing pages, no completed hands-on run; Hedera Consensus Service: facts checked 2026-10-15 from its public sign-up and pricing pages, no completed hands-on run; OriginStamp: facts checked 2026-10-15 from its public sign-up and pricing pages, no completed hands-on run; Bernstein: facts checked 2026-10-15 from its public sign-up and pricing pages, no completed hands-on run. Prices in USD as listed, excluding tax. "–" means not recorded.
Score
- Pricing clarity
- 2.0 / 10, Fair
- no paid price published; no online purchase; the home page links to plans that it does not show
- Free tier
- 4.7 / 10, Fair
- free plan: 50 hashes a month through the API, items kept 90 days
- Price for 100,000 hashes
- 0.0 / 10, Fair
- no plan on sale: paid billing is not turned on, and the Enterprise tier (100,000 items a month) is marked Coming Soon with no price
- Proof independence and privacy
- 10.0 / 10, Excellent
- anchored to Stellar and Bitcoin; proof file you keep; open-source verifier; hash-only submission; deletion or redaction
- Compliance and legal standing
- 1.0 / 10, Fair
- no SOC 2 stated, no qualified timestamps, admissibility law cited
- Developer and team features
- 3.0 / 10, Fair
- API, SDKs or CLI, no SSO listed
Review
Review from public pages
Written from Truestamp's public pages (pricing, security or privacy, and docs) as read on Oct 15, 2026. We did not sign up, and no hands-on run is published yet.
What the public pages show
We read Truestamp's home page and FAQ, its security, about, CLI and API pages, its terms, and the knowledge-base articles on plans, epochs, proof bundles and support on Oct 15, 2026; we did not register for this review. The home page has a 'See plans' link, but the page shows no plans or prices; the plans article says paid billing is not turned on yet, so Starter, Pro and Enterprise are displayed as Coming Soon with sign-up disabled.
The design is well documented. You submit a hash (or small claims), Truestamp puts it in a Merkle tree on its own signed ledger, and epochs of blocks are committed to Stellar and Bitcoin. A proof bundle walks from your item to the on-chain record, and the CLI checks it offline. The terms say plainly that the proofs are electronic timestamps under eIDAS but not qualified ones.
One thing to plan for: free-plan items expire after 90 days, and after a grace period the data needed to build a proof is removed, so download each proof while the item is active.
Strengths
- Open-source offline verifier
Proof bundles verify with the open-source CLI, offline and without an account.
vs OriginStamp: OriginStamp documents manual steps; its GitHub verifier repo holds a README only.
- Two independent chains
Ledger epochs are committed to both Stellar and Bitcoin.
Compared: Bernstein anchors to Bitcoin only.
- Hash-only, with redaction
Files are hashed locally; claims you choose to send can be redacted later while the proof stays valid.
- Agent and API access
REST (OpenAPI), GraphQL, a CLI and an MCP server are documented.
Things to know
- No paid plan on sale
The plans page says paid billing is not turned on; Starter, Pro and Enterprise are marked Coming Soon.
Workaround: The plans page says an administrator can raise a single account’s limits on the Free plan.
- Free items expire after 90 days
The terms say free-plan items are removed after 90 days and a grace period, after which a proof cannot be rebuilt.
Workaround: Download each proof bundle while the item is active; downloaded proofs stay verifiable.
- Webhooks and teams need paid tiers
Free allows one member per team and no webhook endpoints.
- No compliance report or qualified timestamp
No SOC 2 or ISO 27001 is stated, and the terms say the proofs are not qualified timestamps.
Pricing reality
Today Truestamp is free only: 50 items a month, one member, 90-day retention, full API access and community support. The listed tiers set limits (Starter 750 items a month, Pro 10,000, Enterprise 100,000, with unlimited retention and webhooks) but have no prices and cannot be bought; Enterprise pricing is described as arranged directly. Our 100,000-hash scenario therefore cannot be priced. Usage is pooled per billing owner across all their teams.
Exit path
Every proof bundle is self-contained and verifies offline with the open-source CLI, even after the item is deleted from Truestamp, so leaving means keeping your downloaded bundles.
Compared with
- Pick Truestamp when
- You want to start free with an open-source offline verifier and redaction.
- Pick OriginStamp when
- You need a production contract today for larger volumes, on Bitcoin and Ethereum.
- Pick Truestamp when
- You want a ready proof bundle with no keys or tokens to manage.
- Pick Hedera Consensus Service when
- You need more than 50 items a month at a price you can compute ($0.0008 per message).
Choose it if
- You want proofs anyone can verify offline with open-source tooling.
- You timestamp up to 50 items a month and can download proofs within 90 days.
- You want anchors on two public chains and the option to redact what you sent.
Look elsewhere if
- You need a paid plan, an SLA or volumes above the free plan today.
- Your review requires SOC 2, ISO 27001 or qualified timestamps.
Bottom line
From its public pages, Truestamp has the strongest proof portability here: two chains, self-contained bundles and an open-source offline verifier. Only the free plan can be used today.
Plan limits at a glance
| Limit | As recorded |
|---|---|
| What it anchors to | Stellar and Bitcoin (epoch roots of its own ledger) |
| Billing unit | Items a month per plan; paid tiers not on sale |
| Free option | 50 items a month, 90-day retention |
| Reference scenario (100,000 hashes/mo) | No plan on sale |
| Proof you keep | Self-contained proof bundle (JSON or binary) |
| Verify without the vendor | Open-source CLI, offline |
| Only the hash leaves your systems | Yes; content can also be redacted |
| Qualified timestamps (eIDAS) | No (terms say not qualified) |
| SOC 2 / ISO 27001 | Not stated |
| API and webhooks | REST, GraphQL, CLI, MCP; webhooks on paid tiers |
| SSO | Not listed |
Read from the vendor's public pages on Oct 15, 2026. No hands-on run is published yet. How we check
We have not published a sign-up run for Truestamp yet. The access facts above were read from its sign-up and pricing pages on Oct 15, 2026.
We have not published API calls for Truestamp yet.
Truestamp lists 4 plans.
- TruestampFreeFree$0/mo50 items a month, 1 member, items kept 90 days
- Full API access
- No custom metadata or webhooks
- Web-form items are public
- Community support
- TruestampStarterComing soon750 items a month; not on sale yet
- 5 teams, 5 members per team
- 5 webhook endpoints
- Unlimited retention
- Email support
- TruestampProComing soon10,000 items a month; not on sale yet
- 20 teams, 50 members per team
- 20 webhook endpoints
- Unlimited retention
- Email support
- TruestampEnterpriseArranged directly100,000 items a month; marked Coming Soon
- 100 teams, 500 members per team
- 100 webhook endpoints
- Priority support
Prices as listed, USD, excluding tax; observed 2026-10-15.
Source: truestamp.com pricing page. Prices change; the observed date above is when our agent read them.