Independent verification
Verify any chain entry yourself
Provide a chain sequence number or a hash. The verifier walks the chain from your entry back to the last anchored block, reproduces the linkage, and confirms (or denies) tamper-evidence end-to-end. No login required.
Entry · sequence number or hash
Example: #184,392 · or paste a 64-character hash · case-insensitive
Anchor log · hourly
External witnesses
Each hour, the head of the Sentinel chain is anchored to the Bitcoin blockchain via OpenTimestamps and cross-witnessed by the PPCC e-GP portal. Two independent authorities, neither under CBL's control, maintain the timeline.