{
  "txid": "3e7fc3f2bbb644fad2d47afc4d7f8ea3a5829a34729a175d53b9b67597ccacf0",
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  "map_content": "Local signing gives authenticity of each instruction. The chain gives globally verifiable authorization, revocation, and auditability.",
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{
  "txid": "629f6375b23f2a4a52bf657bb2b1c29675953d585164762e03ca09a1b778b6de",
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  "map_content": "Approximate gas usage per operation (contract design matters; these are typical ranges):\n- Consume on-chain nonce (read + increment + optional event): ~40k\u201370k gas\n- Post audit hash (event-only, no storage write): ~8k\u201325k gas (+ calldata bytes)\n- Add/update session key (new storage slot + bookkeeping): ~80k\u2013120k gas\n- Revoke session key (toggle or delete): ~45k\u201380k gas",
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{
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  "map_content": "How to turn that into $ cost\n- Cost(ETH) = gas_used \u00d7 gas_price_gwei \u00d7 1e-9\n- Cost(USD) = Cost(ETH) \u00d7 ETH_USD",
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{
  "txid": "d0710e7f446d2931fec29578e69ca08b3b2d2958a489a064602a58489d570fac",
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  "map_content": "If you want, tell me which chain you plan to use (e.g., Base, OP, Arbitrum, Ethereum L1), and I\u2019ll compute live estimates for your exact functions and calldata size.",
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{
  "txid": "b1273811c35dd1531caa547c667fa39f981b0c3ab2e047e448675af1f70d26c5",
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  "map_content": "**Why use a blockchain if prompts are signed locally?**\n- Shared root of trust: The contract is the public, tamper\u2011resistant source of truth for \u201cwho is allowed to direct this agent and for what scopes.\u201d Anyone (tools, other agents, verifiers) can independently check it.\n- Revocation and rotation: Keys/sessions can be revoked/rotated on-chain once, and every verifier (including the agent itself and external tools) immediately has the same answer without trusting your local config.\n- Capability discovery: Tools the agent calls can gate their own actions by querying the same on-chain policy (defense\u2011in\u2011depth). That only works if the policy is globally accessible and authenticated.\n- Auditability/attestation: You can optionally anchor hashes of accepted prompts/executions on-chain for third\u2011party verification later.\n- Interop: Multiple agents, UIs, and services can coordinate around one canonical policy without bespoke integrations.",
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{
  "txid": "dd078f697f51086daed6efa80c64657fb38251b7a1257b0b0c242aa4f8579035",
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  "map_content": "Concrete examples (illustrative; plug in today\u2019s gas + price):\n- Ethereum L1 at 20 gwei, ETH = $3,000\n  - Consume nonce (50k gas): 0.001 ETH \u2248 $3.00\n  - Audit hash event (15k gas): 0.0003 ETH \u2248 $0.90\n  - Add session key (100k gas): 0.002 ETH \u2248 $6.00\n  - Revoke key (60k gas): 0.0012 ETH \u2248 $3.60\n- Modern L2s (Base/OP/Arbitrum/zk rollups): the same calls typically land in the ~$0.002\u2013$0.05 range depending on calldata size and time of day. Polygon PoS is often <$0.01.",
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{
  "txid": "c5c2bdfdfa151a9d305f11a7b0a11871ed1d7f637d64fa08bada857c795e8d3f",
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  "map_content": "Practical guidance\n- Keep prompts off-chain and $0 by default (signed envelopes).\n- Use on-chain only for: key/session management, rare strict anti\u2011replay (on\u2011chain nonce), and optional audit events. Do these on an L2 to make them pennies.\n- Tools the agent calls should verify scopes against the same registry to neutralize prompt\u2011injection attempts.",
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