11 Services from khotem.com

Cryptographically seals and notarizes content or a pre-computed SHA-256 hash, creating a verifiable timestamped record for audit purposes, paid instantly via USDC on Base.

Tops up an existing KHOTEM cryptographic witness stream by adding 1000 more messages to its message quota

Looks up and attests a transaction hash, SHA-256 digest, or timestamp stamp via a SEAL notary audit, paid with USDC on Base.

Returns current prices for specified crypto assets (ETH, USDC, DAI, LINK, SOL) via a paid micropayment endpoint

Provides paid cryptographic notarization and session verification with audit trail via USDC micropayment on Base, no signup required.

Returns a cryptographically sealed document (doc #15) with a SHA hash and payment seal after USDC micropayment verification on Base

Performs SEAL-based notarization, session verification, and audit logging for documents or events, paid per-call via USDC on Base with no signup or KYC required.

Fetches a cryptographically sealed document by ID, returning its content along with a payment-verified seal hash proving the document was retrieved and paid for.

Returns cryptographically sealed document #16 with a SHA hash and payment seal after USDC payment on Base

Returns a full verified document thread with a cryptographic payment seal after paying $0.25 USDC on Base

Simulates a quantum circuit defined by gates and qubits, returning measurement results, paid via x402 micropayment with no account or API key required.