# Terms and conditions of sale: The Quillfield Hotel Version 1. Effective: 2026-10-26. These are the terms on which The Quillfield Hotel sells at https://quillfield-hotel.integraledger.com. Each purchase makes its own agreement, which holds these terms' address and hash. ## 1. This is a demonstration For demonstration only. This transaction runs on a test network with test money, and has no value. Every sale here is fully executed when it is made: the agreement is issued and bound to the payment, the payment is made in test USDC on the test network the checkout is paid on (section 5), and what is sold is delivered as section 6 says. Nothing here is sold for money of any value. Prices are real-life prices in US dollars. In this demonstration each is paid at one millionth of a USDC for each cent: $95.00, paid as 0.0095 USDC. ## 2. The parties - The seller: The Quillfield Hotel, at https://quillfield-hotel.integraledger.com. Contact: stay@quillfieldhotel.example. - The buyer: whoever pays for an offer here, through an agent of their own or one they use. The buyer is known by the wallet that signs the payment. - The payee: every payment for a purchase here is made to the quillfield shop's own seller account on the network the checkout is paid on, which section 5 names for each network. Each is the website's own account: https://integraledger.com/registry.json lists every account the website holds on each network, and anyone can read on each network the transfers it receives. Each agreement names the payee in its `order` (`paid.payee`, and in words `paid.words`), and Integra's facilitator settles a payment only to the payee of the agreement the payment carries. ## 3. What is sold, and each offer's terms ### One night, double room (`double-room`) A double room for one night, for two, with breakfast. Check in from three in the afternoon, and out by eleven the next morning. - Price: $95.00, paid as 0.0095 USDC. - Payment: Authorise now, collect later: the whole price is authorised into escrow when bought, and collected by the seller 2 minutes after (x402 `auth-capture`). Until it is collected, it is authorised, not paid. - Delivers: A booking of 1200 minutes, confirmed with a reference and an .ics file. Slots start at 15:00 (Europe/London) on mon, tue, wed, thu, fri, sat, sun, up to 90 days ahead; the catalogue lists the free ones. A slot takes 30 bookings, each held for one buyer only. - Asks the buyer for: name. What the buyer gives is written into the agreement, which is public. - The buyer may name a free slot as `slot`, its start time as the catalogue lists it; without one, the next free slot is booked. Its terms, word for word: - **payment**: The room's price is held when you book and taken at check-in: in this demonstration, two minutes after the booking. - **cancellation**: Free to cancel until 48 hours before check-in, when the hold is released. - **breakfast**: Breakfast for two is included, served until half past ten. The SHA-256 of these terms in their RFC 8785 (JSON Canonicalization Scheme) form is `0x3404819f70b7863db6d6851f49735de0fa19bac2adcbaeae25ab9db88e7e913a`. ### One night, single room (`single-room`) A single room for one night, with breakfast. Check in from three in the afternoon, and out by eleven the next morning. - Price: $75.00, paid as 0.0075 USDC. - Payment: Authorise now, collect later: the whole price is authorised into escrow when bought, and collected by the seller 2 minutes after (x402 `auth-capture`). Until it is collected, it is authorised, not paid. - Delivers: A booking of 1200 minutes, confirmed with a reference and an .ics file. Slots start at 15:00 (Europe/London) on mon, tue, wed, thu, fri, sat, sun, up to 90 days ahead; the catalogue lists the free ones. A slot takes 10 bookings, each held for one buyer only. - Asks the buyer for: name. What the buyer gives is written into the agreement, which is public. - The buyer may name a free slot as `slot`, its start time as the catalogue lists it; without one, the next free slot is booked. Its terms, word for word: - **payment**: The room's price is held when you book and taken at check-in: in this demonstration, two minutes after the booking. - **cancellation**: Free to cancel until 48 hours before check-in, when the hold is released. - **breakfast**: Breakfast is included, served until half past ten. The SHA-256 of these terms in their RFC 8785 (JSON Canonicalization Scheme) form is `0x5e86e82dc5b9089ab81b050b51e518c6f039ad5db96a55b1719f6eb17136976b`. ## 4. How an agreement is made - When a buyer asks to buy, before any payment, Integra's appliance issues an agreement for that purchase: an Agreement Transaction Record (ATR). It holds the seller, the offer, these terms (the offer's word for word, and this document by its address and SHA-256), the order and its price, what the buyer gave, and what this demonstration will and will not do. - The payment request carries the agreement's hash, H, which is the SHA-256 of its exact bytes, and a link to those bytes, in the x402 extension `legalContext`. An agent should fetch the link, hash the bytes, and compare the result with H before it signs. - The payment is bound to H. On Base Sepolia, Arc testnet, Avalanche® Fuji, Ethereum Sepolia, Arbitrum Sepolia, OP Sepolia, Polygon Amoy, Unichain Sepolia, World Chain Sepolia, Ink Sepolia, Celo Sepolia, Monad testnet, Sei testnet, Sonic testnet, Morph Hoodi, Cronos testnet and Pharos Atlantic: For an offer paid when bought, and for pay later's anchoring payment (x402 `exact`), H is the nonce of the EIP-3009 authorization; for an offer authorised now and collected later (x402 `auth-capture`), H is in the escrow payment's salt. The same offers are offered through MPP too (the `evm` method's `authorization` credential), under an agreement of their own: its challenge's `id` is base64url of its H and the challenge's position, its `opaque` names H, and the EIP-3009 authorization's nonce is keccak256 of the id and the realm. On Hedera testnet: For an offer paid when bought, and for pay later's anchoring payment (x402 `exact` on Hedera), H is the memo of the Hedera transaction the buyer signs, written `lcp:sha256:` followed by H, which any Mirror Node shows by the transaction's id. On Stellar testnet: On Stellar (x402 `exact`), for an offer paid when bought and for pay later's anchoring payment, the challenge's `payTo` is the payee's muxed address (`M…`), whose 64-bit id is the first 8 bytes of H: the payer signs the Soroban `transfer` of USDC to it, and the USDC lands in the payee's own account (`G…`), its transfer event carrying that id. On Solana devnet: On Solana (x402 `exact`), for an offer paid when bought and for pay later's anchoring payment, H is the one Memo instruction of the transaction the buyer signs, written `lcp:sha256:` followed by H (the option's `extra.memo`): the facilitator's account completes it as its fee payer, its instruction data on chain carries the memo, and the USDC lands in the payee's associated token account. On XRPL Testnet: On XRPL (x402 `exact`), for an offer paid when bought and for pay later's anchoring payment, H rides as the `InvoiceID` of the Payment the buyer signs: the SHA-256 of `lcp:sha256:` followed by H (the option's `extra.invoiceId`). The buyer pays its own fee and spends one of its tickets, Integra's facilitator submits the signed Payment, and the USDC is delivered to the payee's address; the ledger shows the InvoiceID, which anyone holding the agreement can check against H. On Algorand testnet: On Algorand (x402 `exact`), for an offer paid when bought and for pay later's anchoring payment, H is the note of the asset transfer the buyer signs, written `lcp:sha256:` followed by H: the transfer moves the USDC to the payee's account, grouped after the facilitator's payment of nothing to itself, which pays both fees, and the note is on chain in the confirmed transaction. A payment that carries H is the buyer's acceptance of that agreement. - An agreement can be paid once, while it is open: 15 minutes from its issue. A signature is good for 300 seconds. - Where an offer is open to negotiation, a price agreed with the seller's agent stands for 10 minutes, for one purchase, named as the quote. - Every offer also has a test checkout, at `/test/buy/` and as the tool `test_buy`. A checkout for testing your agent. The hash it advertises has one character changed. An agent that checks signs nothing. Nothing is sold here. ## 5. Payment Each checkout is paid on one test network, which the buyer names as a CAIP-2 id (`network` in the body of the request to `/buy/`, in the tool `buy` and in an A2A buy data part; in UCP's checkout, a network the platform's profile declares for the x402 handler, `config.networks`, that this shop accepts too); with none named, `eip155:84532`. The agreement names the network, the payee and who settles. The networks offered: - Base Sepolia (`eip155:84532`, the default): its test USDC `0x036CbD53842c5426634e7929541eC2318f3dCF7e`, paid to `0xa00768eB29AC9DA2bAd0e66a8b63FBCd705aBDb3` by an EIP-3009 transfer, settled by the CDP facilitator from 0.001 USDC on, through Integra's facilitator (https://facilitator.integraledger.com), and by Integra's facilitator below that; a hold is authorised into the x402 `auth-capture` escrow (`0xf96815976523E00e65Be8f34cA5e64b4f41EB19c`), settled by Integra's facilitator (https://facilitator.integraledger.com). - Arc testnet (`eip155:5042002`): its test USDC `0x3600000000000000000000000000000000000000`, paid to `0xa00768eB29AC9DA2bAd0e66a8b63FBCd705aBDb3` by an EIP-3009 transfer, settled by the Circle Facilitator Service, through Integra's facilitator (https://facilitator.integraledger.com); a hold is authorised into the x402 `auth-capture` escrow (`0xf96815976523E00e65Be8f34cA5e64b4f41EB19c`), settled by Integra's facilitator (https://facilitator.integraledger.com). - Avalanche® Fuji (`eip155:43113`): its test USDC `0x5425890298aed601595a70AB815c96711a31Bc65`, paid to `0xa00768eB29AC9DA2bAd0e66a8b63FBCd705aBDb3` by an EIP-3009 transfer, settled by Integra's facilitator (https://facilitator.integraledger.com); a hold is authorised into the x402 `auth-capture` escrow (`0xf96815976523E00e65Be8f34cA5e64b4f41EB19c`), settled by Integra's facilitator (https://facilitator.integraledger.com). - Hedera testnet (`hedera:testnet`): its test USDC `0.0.429274`, paid to `0.0.11173958` by a Hedera Token Service transfer, settled by Integra's facilitator (https://facilitator.integraledger.com). - Stellar testnet (`stellar:testnet`): its test USDC `CBIELTK6YBZJU5UP2WWQEUCYKLPU6AUNZ2BQ4WWFEIE3USCIHMXQDAMA`, paid to `GBNLGWYYSWD2MCXES2JJ7NMVWS57K2KLRBEMQERE2BFAM3OXEP7PU26E` by a Stellar transfer, settled by Integra's facilitator (https://facilitator.integraledger.com). - Solana devnet (`solana:EtWTRABZaYq6iMfeYKouRu166VU2xqa1`): its test USDC `4zMMC9srt5Ri5X14GAgXhaHii3GnPAEERYPJgZJDncDU`, paid to `EzKhBkqQQyNHrpU1Zz91PrGf1tRD7BSYMFec9THiPLss` by an SPL token transfer, settled by Integra's facilitator (https://facilitator.integraledger.com). - XRPL Testnet (`xrpl:1`): its test USDC `5553444300000000000000000000000000000000`, paid to `r3gmUZL9n6D5DAr62rcaAxYqUD6uRbWvs` by an XRPL payment, settled by Integra's facilitator (https://facilitator.integraledger.com). - Algorand testnet (`algorand:SGO1GKSzyE7IEPItTxCByw9x8FmnrCDe`): its test USDC `10458941`, paid to `S55ZYLZEICBSJCXJJQJEP7ICMHZKHNVYLYH2CSPLEC4QNI3EAKAYU76KQE` by an Algorand asset transfer, settled by Integra's facilitator (https://facilitator.integraledger.com). - Ethereum Sepolia (`eip155:11155111`): its test USDC `0x1c7D4B196Cb0C7B01d743Fbc6116a902379C7238`, paid to `0xa00768eB29AC9DA2bAd0e66a8b63FBCd705aBDb3` by an EIP-3009 transfer, settled by Integra's facilitator (https://facilitator.integraledger.com). - Arbitrum Sepolia (`eip155:421614`): its test USDC `0x75faf114eafb1BDbe2F0316DF893fd58CE46AA4d`, paid to `0xa00768eB29AC9DA2bAd0e66a8b63FBCd705aBDb3` by an EIP-3009 transfer, settled by Integra's facilitator (https://facilitator.integraledger.com). - OP Sepolia (`eip155:11155420`): its test USDC `0x5fd84259d66Cd46123540766Be93DFE6D43130D7`, paid to `0xa00768eB29AC9DA2bAd0e66a8b63FBCd705aBDb3` by an EIP-3009 transfer, settled by Integra's facilitator (https://facilitator.integraledger.com). - Polygon Amoy (`eip155:80002`): its test USDC `0x41E94Eb019C0762f9Bfcf9Fb1E58725BfB0e7582`, paid to `0xa00768eB29AC9DA2bAd0e66a8b63FBCd705aBDb3` by an EIP-3009 transfer, settled by the Circle Facilitator Service, through Integra's facilitator (https://facilitator.integraledger.com). - Unichain Sepolia (`eip155:1301`): its test USDC `0x31d0220469e10c4E71834a79b1f276d740d3768F`, paid to `0xa00768eB29AC9DA2bAd0e66a8b63FBCd705aBDb3` by an EIP-3009 transfer, settled by Integra's facilitator (https://facilitator.integraledger.com). - World Chain Sepolia (`eip155:4801`): its test USDC `0x66145f38cBAC35Ca6F1Dfb4914dF98F1614aeA88`, paid to `0xa00768eB29AC9DA2bAd0e66a8b63FBCd705aBDb3` by an EIP-3009 transfer, settled by the CDP facilitator from 0.001 USDC on, through Integra's facilitator (https://facilitator.integraledger.com), and by Integra's facilitator below that. - Ink Sepolia (`eip155:763373`): its test USDC `0xFabab97dCE620294D2B0b0e46C68964e326300Ac`, paid to `0xa00768eB29AC9DA2bAd0e66a8b63FBCd705aBDb3` by an EIP-3009 transfer, settled by Integra's facilitator (https://facilitator.integraledger.com). - Celo Sepolia (`eip155:11142220`): its test USDC `0x01C5C0122039549AD1493B8220cABEdD739BC44E`, paid to `0xa00768eB29AC9DA2bAd0e66a8b63FBCd705aBDb3` by an EIP-3009 transfer, settled by Integra's facilitator (https://facilitator.integraledger.com). - Monad testnet (`eip155:10143`): its test USDC `0x534b2f3A21130d7a60830c2Df862319e593943A3`, paid to `0xa00768eB29AC9DA2bAd0e66a8b63FBCd705aBDb3` by an EIP-3009 transfer, settled by Integra's facilitator (https://facilitator.integraledger.com). - Sei testnet (`eip155:1328`): its test USDC `0x4fCF1784B31630811181f670Aea7A7bEF803eaED`, paid to `0xa00768eB29AC9DA2bAd0e66a8b63FBCd705aBDb3` by an EIP-3009 transfer, settled by Integra's facilitator (https://facilitator.integraledger.com). - Sonic testnet (`eip155:14601`): its test USDC `0x0BA304580ee7c9a980CF72e55f5Ed2E9fd30Bc51`, paid to `0xa00768eB29AC9DA2bAd0e66a8b63FBCd705aBDb3` by an EIP-3009 transfer, settled by Integra's facilitator (https://facilitator.integraledger.com). - Morph Hoodi (`eip155:2910`): its test USDC `0x7433b41C6c5e1d58D4Da99483609520255ab661B`, paid to `0xa00768eB29AC9DA2bAd0e66a8b63FBCd705aBDb3` by an EIP-3009 transfer, settled by Integra's facilitator (https://facilitator.integraledger.com). - Cronos testnet (`eip155:338`): its test USDC `0xEb33dc5fac03833e132593659e1dE7256aB59794`, paid to `0xa00768eB29AC9DA2bAd0e66a8b63FBCd705aBDb3` by an EIP-3009 transfer, settled by Integra's facilitator (https://facilitator.integraledger.com). - Pharos Atlantic (`eip155:688689`): its test USDC `0xcfC8330f4BCAB529c625D12781b1C19466A9Fc8B`, paid to `0xa00768eB29AC9DA2bAd0e66a8b63FBCd705aBDb3` by an EIP-3009 transfer, settled by Integra's facilitator (https://facilitator.integraledger.com). - Paid when bought: the amount, in the network's test USDC, to the payee. - Authorise now, collect later, on a network with the escrow: the buyer authorises the amount into the x402 `auth-capture` escrow when it buys, with the payee as the escrow's receiver, and the seller collects it to the payee at the time the offer names. The seller collects within a day of the sale; after that, only the payer can take the money back. - No fee is charged beyond the price. - A payment is said to be paid only once the seller's own reading of the chain confirms it. ## 6. Delivery Each purchase is delivered once, at its inception, after its payment settles: for an offer authorised now and collected later, after it is authorised into escrow; for pay later, after the anchoring payment settles. - A booking is confirmed in the answer to the paid request, with an .ics file; its own address answers its state, size and hash. Nothing else is arranged. ## 7. Records - Each purchase has a proof page, at `https://quillfield-hotel.integraledger.com/proof/`, which shows the agreement, the appliance's record of it, and the payment on the chain. - The appliance records a transaction at its inception: the agreement, and the payment bound to it. What follows, such as the collection of a payment authorised into escrow, is the seller's own reading of the chain. For pay later, the amount owed is neither tracked nor collected: the record is of the agreement and its anchoring payment. ## 8. No warranty Everything here is provided as it is, for demonstration, with no warranty of any kind. ## 9. Changes to these terms These terms are served at https://quillfield-hotel.integraledger.com/terms.md. Their SHA-256 is published as `atrHash` in https://quillfield-hotel.integraledger.com/.well-known/legal-context.json. If they change, their version and the day it took effect, above, change, and so does their hash; an agreement already made holds the address and hash of the terms it was made under. ## 10. Contact stay@quillfieldhotel.example