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₿ satring info certvera-document-timestamp

CertVera Bitcoin Timestamp

[L402] #identity #tools
Timestamp documents on Bitcoin via OP_RETURN. 5 actions at POST certvera.com/api/l402: (1) l402_timestamp - anchor a SHA-256 hash, 25k sats L402. (2) l402_timestamp with file_data - upload and hash a file, 30k sats L402. (3) l402_timestamp_verify - check if hash exists on-chain, free. (4) l402_timestamp_status - check pending/confirmed status, free. (5) l402_timestamp_update - subscribe to webhook/email notifications, 10 sats L402. Immutable proof of existence, no account needed.
endpointhttps://certvera.com/api/l402
pricing25000 sats / per-request
protocolL402
status[domain verified]
providerPaul
contacthttps://certvera.com/contact
listed2026-03-04
─ stats ─
rating: — (0 reviews)
price: 25000 sats / per-request
proto: L402
status: [verified]
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