CertVera File Upload Timestamp

https://certvera.com/api/l402?action=l402_timestamp_upload

Overview

Timestamp a file on Bitcoin by uploading it directly. File is hashed server-side, stored on Google Cloud, and anchored via OP_RETURN. POST {action: l402_timestamp, file_data: <base64>, filename: <name>} to certvera.com/api/l402. 30,000 sats via L402 (includes 5,000 sat upload surcharge). Max 25 MB. Supports PDF, images, and documents.

Protocol L402

Price $21.00

Payment Asset BTC

Payment Network Lightning

Category identity

Provider Paul

Source satring

Indexed 2026-03-17 18:59:38

Health

Status degraded

Latency (p50) 525ms

Uptime (30d) 100.0%

Reliability Score 87/100

Last Checked 2026-03-21 09:26:25

Last Healthy Never

Consecutive Failures 0

Recent Health Checks

Time	Status	HTTP	Latency
2026-03-21 09:26:25	degraded	301	506ms
2026-03-21 08:31:33	degraded	301	503ms
2026-03-21 07:01:40	degraded	301	498ms
2026-03-21 06:27:35	degraded	301	527ms
2026-03-21 04:59:40	degraded	301	1023ms
2026-03-21 04:18:34	degraded	301	512ms
2026-03-21 03:25:35	degraded	301	504ms
2026-03-21 02:03:25	degraded	301	564ms
2026-03-21 01:09:43	degraded	301	502ms
2026-03-21 00:27:05	degraded	301	557ms
2026-03-20 23:26:25	degraded	301	173ms
2026-03-20 22:30:13	degraded	301	520ms
2026-03-20 21:37:39	degraded	301	559ms
2026-03-20 20:43:51	degraded	301	525ms
2026-03-20 19:50:22	degraded	301	512ms
2026-03-20 18:56:49	degraded	301	536ms
2026-03-20 18:28:24	degraded	301	502ms
2026-03-20 17:29:08	degraded	301	601ms
2026-03-20 16:11:03	degraded	301	589ms
2026-03-20 15:48:17	degraded	301	1131ms