Frequently Asked Questions

HashBin.org is a content distribution platform that uses 256t hash-based addressing. Content is identified and accessed using cryptographic hashes, making it content-addressable, verifiable, and permanent. We operate on a "pay-to-publish, free-to-download" model.

A 256t hash is a cryptographic identifier generated from your content using SHA-512 and encoded in Base64URL format. It's deterministic (same content always produces the same hash), verifiable (anyone can confirm the hash matches the content), and URL-safe.

No! Downloads are completely free and require no account. Anyone with a 256t hash can retrieve the associated content. You only need an account if you want to upload content.

You can upload any file type. HashBin.org treats all content as binary data and doesn't inspect or process file contents. The maximum file size is 5GB.

If content with the same hash already exists, we'll show you a message and offer the option to extend its retention period by at least 30 days. You won't be charged for duplicate storage.

When uploading, you choose a retention duration in multiples of 30 days. Common presets include 1 month, 1 year, 1 decade, and 1 century. You can also specify a custom duration. Content will be deleted after expiration unless retention is extended.

Yes, you can extend retention for any content you've uploaded from your dashboard. Extensions must be in multiples of 30 days and will be charged based on the file size and additional duration.

Content cannot be deleted before its expiration date. This ensures reliability for anyone who has the hash. If you need content removed, you can file a dispute through the appropriate channels as outlined in the Terms of Service.

Storage costs $0.03 per GB per month. For example, storing a 100MB file for 1 year would cost approximately $0.036. Use our pricing calculator to estimate costs for your use case.

Click "Add Funds" from your dashboard or the upload page. You'll be redirected to Stripe Checkout to securely add funds using a credit card or other payment methods. The minimum deposit is $1.00.

We accept all major credit cards, Apple Pay, and Google Pay through Stripe. All payments are processed securely, and we never store your payment information.

No hidden fees! You only pay the storage cost ($0.03 per GB per month). Stripe charges standard payment processing fees (2.9% + $0.30) which are clearly shown before you complete a deposit.

Deposits are non-refundable once added to your wallet. However, funds remain in your wallet indefinitely and can be used for future uploads or retention extensions.

Content is stored securely on Cloudflare R2 with encryption at rest. However, anyone with the 256t hash can download the content - treat the hash like a password. Don't share hashes for sensitive content publicly.

No. We treat all content as opaque binary data. We don't scan, inspect, or process file contents. Content is identified solely by its cryptographic hash.

We use Clerk for OAuth authentication, supporting Google, Apple, Microsoft, and GitHub accounts. We don't handle passwords directly - authentication is managed securely through these trusted providers.

Yes! You can create API keys from your dashboard for programmatic access. Keys can be set to expire after a specified duration and can be revoked at any time. See our API documentation for details.

For content larger than 64 bytes, we compute a SHA-512 hash and encode it in Base64URL format. For content 64 bytes or smaller, we use direct Base64URL encoding. The hash includes an 8-character length prefix.

Content is stored on Cloudflare R2, a globally distributed object storage service. This ensures low-latency access from anywhere in the world.

Our infrastructure runs on Cloudflare's edge network with high availability guarantees. Content is stored redundantly across multiple data centers. In the unlikely event of extended downtime, you can contact support for data export options.

The maximum file size is 5GB, which is the limit for Cloudflare R2 single uploads. There are no limits on the total amount of content you can store.

Yes! We provide a comprehensive REST API for content upload, retrieval, and account management. See our API reference for complete documentation.