Chainpoint API
Overview
Chainpoint anchors any data hash to the Bitcoin blockchain, creating a tamper-proof proof of existence for documents, records, or any digital content. It returns a cryptographic proof you can verify independently.
Beginner Tip
Submit a SHA-256 hash of your data (not the raw data itself) — this keeps your content private while still creating an immutable timestamp on the blockchain.
Available Data
Example Response
{
"id": "bitcoin",
"symbol": "btc",
"current_price": 65432.1,
"market_cap": 1280000000000,
"price_change_24h": 1250.5,
"price_change_percentage_24h": 1.95,
"total_volume": 28500000000
} Field Reference
hash_id_node UUID that identifies your submitted hash on this specific node; save it to retrieve the proof later. hash Echo of the SHA-256 hash you submitted for anchoring. submitted_at ISO 8601 timestamp of when the hash was accepted by the node. processing_hints.btc Estimated ISO 8601 timestamp for when the Bitcoin anchor proof will be available (typically ~60-90 minutes). Implementation Example
const url = "https://tierion.com/chainpoint/";
const response = await fetch(url);
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data); What Can You Build?
Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.
Common Errors & Troubleshooting
Matrix Score Breakdown
Fully tested on Apr 5, 2026
Technical Specifications
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