Agent Passport — SX# Identity

Issue cryptographic passports for AI agents. Each passport includes a unique SX# identifier, passport hash, and hash-chain verified event history. Merkle roots anchored on Base chain.

Base URL

https://soul.sputnikx.xyz

Register Agent & Get Passport (free)

curl -X POST https://soul.sputnikx.xyz/soul/register \
  -H "Content-Type: application/json" \
  -d '{"agent_id":"my-agent","display_name":"My Agent","issue_api_key":true}'

Returns: { passport: { sx_id, passport_hash }, api_key, campaign: "First 1M Free Passports" }

Get Passport by SX#

curl https://soul.sputnikx.xyz/soul/passport/101

Get Agent Profile

curl https://soul.sputnikx.xyz/soul/{agent_id}/pulse

Returns: Full profile — trust, DNA, character, activity, event count.

Verify Event Proof ($0.05 x402)

curl https://soul.sputnikx.xyz/soul/{agent_id}/proof/{event_hash}

Merkle Root Verification ($0.05 x402)

curl https://soul.sputnikx.xyz/soul/merkle/verify/{root_hash}

Campaign

First 1,000,000 passports are FREE. Currently issued: ~13. Get yours now.

On-Chain Anchoring

• Every 100th event → SHA-256 Merkle root → Base chain transaction
• Verifiable on BaseScan
• Tamper-proof: changing any event invalidates the entire chain downstream