{"$schema":"https://wellknown.network/schemas/agent-record-v1.json","schemaVersion":"1","id":"ag_cjq9sz2mpztc","handle":"khotem-cryptographic-witness","url":"https://wellknown.network/agents/khotem-cryptographic-witness","links":{"self":"https://wellknown.network/agents/khotem-cryptographic-witness/record.json","html":"https://wellknown.network/agents/khotem-cryptographic-witness","markdown":"https://wellknown.network/agents/khotem-cryptographic-witness/record.md","api":"https://wellknown.network/api/v1/agents/khotem-cryptographic-witness","status":"https://wellknown.network/api/v1/agents/khotem-cryptographic-witness/status","claim":"https://wellknown.network/agents/khotem-cryptographic-witness/claim","claimApi":"https://wellknown.network/api/v1/claims","claimDescriptor":"https://wellknown.network/agents/khotem-cryptographic-witness/claim.json","badge":"https://wellknown.network/agents/khotem-cryptographic-witness/badge.svg","openapi":"https://wellknown.network/openapi.json"},"ard":{"identifier":"urn:air:khotem.com:server:khotem-cryptographic-witness","type":"application/mcp-server-card+json"},"kind":"mcp_server","declared":{"name":"KHOTEM — Cryptographic Witness","summary":"Paid cryptographic witness for agents: seal, attest, receipts. x402 USDC/Base.","description":"Paid cryptographic witness for agents: seal, attest, receipts. x402 USDC/Base.","publisher":{"name":"com.khotem","url":null},"homepage":"https://khotem.com","repository":null,"version":"1.9.9","license":null,"protocols":["mcp"],"tags":[],"pricing":null,"endpoints":[{"url":"https://khotem.com/mcp","type":"mcp_streamable_http","auth":null,"probeable":true}],"skills":null,"tools":null,"extra":{"updatedAt":"2026-08-30T09:46:06.003755Z","publishedAt":"2026-08-30T09:46:06.003755Z","registryName":"com.khotem/khotem-witness"},"attribution":{"kind":"mcp_registry","name":"mcp_registry","summary":"mcp_registry","version":"mcp_registry","description":"mcp_registry","homepageUrl":"mcp_registry","publisherName":"mcp_registry"}},"derived":{"capabilities":[{"slug":"commerce.payments","name":"Payments","confidence":1,"provenance":"derived"},{"slug":"commerce.ecommerce","name":"E-commerce Operations","confidence":0.51,"provenance":"derived"}],"categories":["commerce"]},"observed":{"status":"live","statusReason":"Responded 3h ago.","lastOkAt":"2026-09-06T06:23:24.459Z","lastProbedAt":"2026-09-06T06:23:24.459Z","statusComputedAt":"2026-09-06T06:23:47.579Z","reliability30d":{"probes":2,"successRate":1,"p50Ms":107},"latestObservations":[{"at":"2026-09-06T06:23:24.459Z","kind":"mcp_initialize","ok":true,"httpStatus":200,"latencyMs":105,"error":null,"detail":{"tools":[{"name":"khotem_status","description":"FREE. KHOTEM service status: version, mode, liveness."},{"name":"khotem_ping","description":"FREE. Zero-threshold handshake: send any text, get it echoed back with a sha256 stamp and server time — proves the whole path works before you pay anything."},{"name":"khotem_catalog","description":"FREE. Full catalog of paid KHOTEM services with prices (USD) and how to pay (x402 direct, USDC on Base)."},{"name":"khotem_guide","description":"FREE. Step-by-step guide: how an agent pays and calls KHOTEM (x402 v2, PAYMENT-SIGNATURE или X-PAYMENT: txHash)."},{"name":"khotem_receipt_verify","description":"FREE. Verify a KHOTEM Ed25519 receipt: signature, payload hash, ledger anchor, issuer key."},{"name":"khotem_seal","description":"PAID $0.05. Witnessed cryptographic seal: sha256 + timestamp + ledger record. Provide content (hashed and forgotten) or hash. Pay first, then pass payment_tx."},{"name":"khotem_attest","description":"PAID $0.02. Certificate of existence: exact-match a ledger record by ref (txHash | sha256 | 16-hex stamp). Pay first, then pass payment_tx."},{"name":"khotem_receipt","description":"PAID $0.01. Portable Ed25519-signed proof-of-delivery receipt for any ledger ref. Verify free via khotem_receipt_verify. Pay first, then pass payment_tx."}],"toolCount":8,"serverName":"khotem","capabilities":["tools"],"serverVersion":"ядроv ∞ Ξ","protocolVersion":"2025-06-18"}},{"at":"2026-09-05T21:30:17.722Z","kind":"mcp_initialize","ok":true,"httpStatus":200,"latencyMs":109,"error":null,"detail":{"tools":[{"name":"khotem_status","description":"FREE. KHOTEM service status: version, mode, liveness."},{"name":"khotem_ping","description":"FREE. Zero-threshold handshake: send any text, get it echoed back with a sha256 stamp and server time — proves the whole path works before you pay anything."},{"name":"khotem_catalog","description":"FREE. Full catalog of paid KHOTEM services with prices (USD) and how to pay (x402 direct, USDC on Base)."},{"name":"khotem_guide","description":"FREE. Step-by-step guide: how an agent pays and calls KHOTEM (x402 v2, PAYMENT-SIGNATURE или X-PAYMENT: txHash)."},{"name":"khotem_receipt_verify","description":"FREE. Verify a KHOTEM Ed25519 receipt: signature, payload hash, ledger anchor, issuer key."},{"name":"khotem_seal","description":"PAID $0.05. Witnessed cryptographic seal: sha256 + timestamp + ledger record. Provide content (hashed and forgotten) or hash. Pay first, then pass payment_tx."},{"name":"khotem_attest","description":"PAID $0.02. Certificate of existence: exact-match a ledger record by ref (txHash | sha256 | 16-hex stamp). Pay first, then pass payment_tx."},{"name":"khotem_receipt","description":"PAID $0.01. Portable Ed25519-signed proof-of-delivery receipt for any ledger ref. Verify free via khotem_receipt_verify. Pay first, then pass payment_tx."}],"toolCount":8,"serverName":"khotem","capabilities":["tools"],"serverVersion":"ядроv ∞ Ξ","protocolVersion":"2025-06-18"}}],"tools":[{"name":"khotem_status","description":"FREE. KHOTEM service status: version, mode, liveness."},{"name":"khotem_ping","description":"FREE. Zero-threshold handshake: send any text, get it echoed back with a sha256 stamp and server time — proves the whole path works before you pay anything."},{"name":"khotem_catalog","description":"FREE. Full catalog of paid KHOTEM services with prices (USD) and how to pay (x402 direct, USDC on Base)."},{"name":"khotem_guide","description":"FREE. Step-by-step guide: how an agent pays and calls KHOTEM (x402 v2, PAYMENT-SIGNATURE или X-PAYMENT: txHash)."},{"name":"khotem_receipt_verify","description":"FREE. Verify a KHOTEM Ed25519 receipt: signature, payload hash, ledger anchor, issuer key."},{"name":"khotem_seal","description":"PAID $0.05. Witnessed cryptographic seal: sha256 + timestamp + ledger record. Provide content (hashed and forgotten) or hash. Pay first, then pass payment_tx."},{"name":"khotem_attest","description":"PAID $0.02. Certificate of existence: exact-match a ledger record by ref (txHash | sha256 | 16-hex stamp). Pay first, then pass payment_tx."},{"name":"khotem_receipt","description":"PAID $0.01. Portable Ed25519-signed proof-of-delivery receipt for any ledger ref. Verify free via khotem_receipt_verify. Pay first, then pass payment_tx."}],"package":null},"verification":{"claimed":false,"claimedAt":null,"proofs":[]},"provenance":{"sources":[{"source":"mcp_registry","key":"com.khotem/khotem-witness","url":"https://registry.modelcontextprotocol.io/v0/servers/com.khotem%2Fkhotem-witness","firstSeenAt":"2026-09-05T19:20:53.385Z","fetchedAt":"2026-09-05T19:20:53.385Z","normalizedAt":"2026-09-05T19:20:53.385Z"}]},"firstSeenAt":"2026-09-05T19:20:53.385Z","updatedAt":"2026-09-06T06:23:58.183Z"}