CrowdCell Receipt 类型脚本 约束CrowdCell Receipt Type Script Constraints

来源：alesfer001/CrowdCell / contracts/receipt/src/main.rs@2fd13f6　·　0x2bac…a575 (data2，仅测试网)　·　社区合约，未经独立审计Source: alesfer001/CrowdCell / contracts/receipt/src/main.rs@2fd13f6　·　0x2bac…a575 (data2, testnet only)　·　community contract, not independently audited
Type 脚本Type scriptDeFiDeFi测试网Testnet开源Open source社区Community

0 → 1随认捐创建回执Create receipt with a pledge

Inputs 输入Inputs
—无 group 输入no group input
➜
Outputs 输出Outputs
receiptCell{ type: { codeHash: RECEIPT, args: pledge_code_hash 32B }, data(80B): amount ‖ backer ‖ campaign_hash ‖ deadline }
pledgetype code_hash = args[0..32] 的第一个 data ≥ 72B 的输出first output with type code_hash = args[0..32] and data ≥ 72B
receipt data 字节布局（创建时 80B）receipt data byte layout (80B at creation)
pledge_amount8B
backer_lock_hash32B
campaign_type_hash32B
deadline_block8B
  • pledge_amount 8B　认捐额 u64 LEpledge amount u64 LE　> 0；= pledge amount> 0; = pledge amount (12 / 21)
  • backer_lock_hash 32B　认捐人 lock hashbacker lock hash　非零；= pledge data[32..64]non-zero; = pledge data[32..64] (13 / 22)
  • campaign_type_hash 32B　campaign type script hashcampaign type script hash　= pledge lock args[0..32]= pledge lock args[0..32] (24)
  • deadline_block 8B　截止区块 u64 LEdeadline u64 LE　= pledge lock args[32..40]= pledge lock args[32..40] (24)

限制Constraints

  • args ≥ 32 字节≥ 32 bytes (20)
  • data ≥ 80 字节（< 40 也报 10）≥ 80 bytes (< 40 also 10) (10)
  • pledge_amount > 0> 0 (12)
  • backer_lock_hash：: ≠ 0≠ 0 (13)
  • pledge：: 输出中存在匹配的 pledge cella matching pledge cell exists in outputs (14)
  • amount = pledge data[64..72]= pledge data[64..72] (21)
  • backer = pledge data[32..64]= pledge data[32..64] (22)
  • campaign：: pledge lock args ≥ 72B，且 [0..32] / [32..40] 与 receipt 一致pledge lock args ≥ 72B and [0..32] / [32..40] match the receipt (24)

1 → 0销毁回执取回押金Destroy receipt to reclaim its deposit

Inputs 输入Inputs
receiptdata ≥ 40B；80B 版本含 campaign 字段data ≥ 40B; the 80B form carries campaign fields
➜
Outputs 输出Outputs
认捐人backercampaign 已结算时任意；否则需同时消耗 pledge 且有一个给 backer 的输出 capacity ≥ amount − 1 CKBany once the campaign is settled; otherwise a pledge must be consumed and one backer output has capacity ≥ amount − 1 CKB

限制Constraints

  • data ≥ 40 字节≥ 40 bytes (10)
  • settled：: （80B 版本）cell_deps 中有该 campaign 且 status ≠ 0，或 since 为绝对区块号 ≥ deadline + 1,944,000 → 直接通过(80B form) campaign in cell_deps with status ≠ 0, or since absolute block ≥ deadline + 1,944,000 → passes (—)
  • inputs：: 否则输入中须有 type code_hash = args[0..32] 的 pledgeotherwise an input with type code_hash = args[0..32] (pledge) is required (23)
  • args ≥ 32 字节≥ 32 bytes (20)
  • outputs：: 存在单个 lock hash = backer 的输出 capacity ≥ amount − 1 CKBa single output with lock hash = backer has capacity ≥ amount − 1 CKB (15)

1 → 1修改Modify

Inputs 输入Inputs
receipt…
➜
Outputs 输出Outputs
receipt…

限制Constraints

  • group：: 不允许not allowed (11)
部署与来源Deployments & source 未核验unverified
源码source alesfer001/CrowdCell@2fd13f6b · contracts/receipt/src/main.rs (main HEAD read 2026-10-22; author Ayoub_Lesfer (Nervos Talk) offered CrowdCell in https://talk.nervos.org/t/11014/2. Testnet only; deployment from README / deployment/deployed-contracts-testnet.json, hash_type data2 from off-chain/frontend/src/lib/constants.ts and on-chain usage)
二进制核验binary check 未核验unverified hash appears in the repo only as a deployment record or doc, which does not prove the recorded commit builds this binary (reproducible build not attempted)
0x2bac36d4ca…87dba575: listed in README.md; listed in deployment/deployed-contracts-devnet.json; listed in deployment/deployed-contracts-testnet.json
网络networkcode_hashcell_deptype_id args数据哈希data hash部署交易deploy tx
testnet0x2bac36d4cadd65b66c25557d37c2bba4f7e3c40a94ca92f3853b311887dba575 data20x63d545b60d…e317b967:0 code—0x2bac36d4ca…87dba5750x63d545b60d…e317b967 #22448254
链上数据核对于 on-chain data checked 2026-10-22
错误码（main.rs）：9 LOAD_DATA · 10 INVALID_RECEIPT_DATA · 11 RECEIPT_MODIFICATION_NOT_ALLOWED · 12 ZERO_PLEDGE_AMOUNT · 13 ZERO_BACKER_HASH · 14 NO_MATCHING_PLEDGE · 15 REFUND_OUTPUT_MISSING · 16 LOAD_LOCK · 17 LOAD_CAPACITY · 18 LOAD_LOCK_HASH · 19 LOAD_SCRIPT · 20 INVALID_ARGS · 21 AMOUNT_MISMATCH · 22 BACKER_MISMATCH · 23 NO_PLEDGE_CONSUMED · 24 CAMPAIGN_MISMATCH · 25 LOAD_SINCEError codes (main.rs): 9 LOAD_DATA · 10 INVALID_RECEIPT_DATA · 11 RECEIPT_MODIFICATION_NOT_ALLOWED · 12 ZERO_PLEDGE_AMOUNT · 13 ZERO_BACKER_HASH · 14 NO_MATCHING_PLEDGE · 15 REFUND_OUTPUT_MISSING · 16 LOAD_LOCK · 17 LOAD_CAPACITY · 18 LOAD_LOCK_HASH · 19 LOAD_SCRIPT · 20 INVALID_ARGS · 21 AMOUNT_MISMATCH · 22 BACKER_MISMATCH · 23 NO_PLEDGE_CONSUMED · 24 CAMPAIGN_MISMATCH · 25 LOAD_SINCE
创建时只检查第一个 group 输出与找到的第一个 pledge 输出Creation checks only the first group output and the first pledge output found
receipt 只保护押金，不能凭它取走认捐资金A receipt only guards its own deposit; it cannot release pledged funds
解码器限制：cell_deps 数据不解析，“已结算”分支显示为未检查Decoder limitation: cell_dep data is not resolved, so the settled branch shows as not checked
GitHub · gpBlockchain/ckb-contract-flow-html