Directory / www.pennypress.org
www.pennypress.org/witness/attest working
https://www.pennypress.org/witness/attest
Before you pay
- Advice
ok- Protocol
- x402 · http · POST
- Asks for
- 0.05 USDC on base
- Catalogue says
- 0.05 USDC
- Pays to
0x19ea1e953542d7ac76f042f8bdc94d81b964c53d- Last check
- 11 min ago · 132 ms · HTTP 402
- Detail
- 402 with valid terms
Reliability
- Uptime 24 h
- 100.0%
- Uptime 7 days
- 100.0% (30 checks)
- Uptime 30 days
- 100.0% (signed daily)
- Paid calls 30 d
- 9 from 2 payers (x402 Bazaar)
- Listed by
- x402-bazaar
- First seen
- 2026-11-05 22:10 UTC
Description (from the catalogue, unverified)
Witness the SHA-256 fingerprint of a literary work: submit a title, content hash, and optional pen name; receive a tamper-evident, hash-chained receipt. Timestamping, not endorsement. We never see the work itself.
Signed history
| When | Statement | Log index |
|---|---|---|
| 2026-11-06 00:12 UTC | f6b8d2cd…e78c02 daily summary | 42896 |
Verify any statement offline: how.
For agents and owners
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