Overview
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.
Protocol
L402
Price
$17.50
Payment Asset
BTC
Payment Network
Lightning
Category
identity
Provider
Paul
Source
satring
Indexed
2026-03-17 18:59:38
Health
Status
degraded
Latency (p50)
544ms
Uptime (30d)
100.0%
Reliability Score
75/100
Last Checked
2026-06-28 10:48:08
Last Healthy
Never
Consecutive Failures
40
Macaroon Format
Format
Not yet detected
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-06-28 10:48:08 | degraded | 403 | 497ms | |
| 2026-06-27 09:10:29 | degraded | 403 | 1069ms | |
| 2026-06-25 17:04:49 | degraded | 403 | 544ms | |
| 2026-06-25 13:29:42 | degraded | 403 | 496ms |