https://receiptstamp.panmediatech.workers.dev/x402/stamp
Signed proof-of-execution notary for AI agents: POST a payload, get hash + timestamp + signature receipt verifiable via /pubkey. Independent attestation for agent jobs and tool outputs. Pay-per-stamp x402 USDC on Base. Not custody, escrow, or delivery verification.
#931
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Points earned against points available, biggest lever first.
| Rank | Service | Score | Volume | Price |
|---|---|---|---|---|
| #1 | 73 | 16.4K txns | $0.02 | |
| #2 | 68 | 51.3K txns | $0.01 |
| #3 | 62 | 15.9K txns | $0.05 |
| #4 | 62 | 43.8K txns | $0.01 |
| #5 | 61 | 3.1K txns | $0.0080 |