Endpoint · computePOSTwww.pennypress.org /witness/attest
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.
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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.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.05 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://www.pennypress.org/witness/attest
MCP server on this host: io.github.con-scribe/penny-press
Seen
first 8 days ago · last 13 hr ago
8 free handshakes
Payment
Pays through
x402 · MPP x402
Offered on?
Base USDC
Listed on?
Base
Paid calls
No paid calls yet.
Delivery is unknown until someone pays. A handshake only shows it asks for payment.
Verify it yourself
npx teppi-check https://www.pennypress.org/witness/attestcurl -s https://api.teppi.xyz/v1/trust/cap_01M4Z1JX47C1X0KCPRJKHVVFQE