{"rid":"netdisk-pan/cstcloud-data-capsule","card":{"rid":"netdisk-pan/cstcloud-data-capsule","eid":"cstcloud","topic":"netdisk-pan","slug":"cstcloud-data-capsule","provider":"中国科技云 数据胶囊 (CSTCloud Data Capsule)","url":"https://data.cstcloud.cn","domain":"cstcloud.cn","category":"academic object storage","tier":null,"verdict":"fails-quota","vorder":6,"grp":"rejected","confidence":"reported","binding":"write-gated","identity_kind":"national-id","identity_basis":"stated","needs_card":0,"needs_phone":0,"needs_id":1,"needs_institution":0,"country":"cn","crypto":null,"interfaces":"s3,webdav","egress_metered":0,"per_object_bytes":null,"retention_days":null,"verified_at":"2026-10-21T00:00:00.000Z","verified_basis":"inherited","checked_on":"2026-10-21","stale_on":"2026-11-04","n_evidence":3,"usd_month":null,"usd_per_tb_month":null,"summary":"1 GB on registration and 20 GB after identity verification: '注册赠送1G存储。需要20G和S3、WebDAV、MCP需要使用国家网络身份认证app进行认证'","duplicate_of":null,"n_unknown":0},"record":{"topic":"netdisk-pan","slug":"cstcloud-data-capsule","provider":"中国科技云 数据胶囊 (CSTCloud Data Capsule)","url":"https://data.cstcloud.cn","category":"academic object storage","free_tier":{"stated":"1 GB on registration and 20 GB after identity verification: '注册赠送1G存储。需要20G和S3、WebDAV、MCP需要使用国家网络身份认证app进行认证'","unit":"GiB","metered_on":"stored-bytes","source_url":"https://linux.do/t/topic/1614982","read_on":"2026-10-21"},"per_object_cap":{"stated":"Not published","bytes":null,"source_url":"https://linux.do/t/topic/1614982"},"retention":{"stated":"Not published. State-backed academic infrastructure, so durability is high and shutdown risk low","days":null,"source_url":"https://linux.do/t/topic/1614982"},"egress":{"terms":"The headline property: '不限流量、不限读写次数', no egress charge and no request metering, which is rare and matches the serving workload directly","metered":false,"free_allowance":"unlimited","price_per_tb":null,"source_url":"https://linux.do/t/topic/1614982"},"interface":["s3","webdav"],"tooling":"first-party S3 credentials with an AccessKey from 客户端访问, plus WebDAV and MCP. A rclone S3 mounting walkthrough exists and sccache over CSTCloud is documented for Rust builds","chaining":"20 GB per verified identity and each data space is a separate bucket, so the only multiplier is identities. The identity is 国家网络身份认证, a national digital ID app, which makes it non-multiplicable for a user","limits":[{"kind":"write-gated","value":"20 GB and the S3, WebDAV and MCP interfaces all require the 国家网络身份认证 app","source":"https://linux.do/t/topic/1614982"},{"kind":"per-object-cap","value":"20 GB is the account total and the per-object cap is unstated","source":"https://linux.do/t/topic/1614982"}],"identity_cost":{"kind":"national-id","detail":"the 国家网络身份认证 app, a national digital identity. Registration alone yields 1 GB with no identity document","country":"cn"},"reliability_note":"State-backed academic infrastructure, so durability is high. But a non-Chinese client cannot pass the national identity check, which caps them at 1 GB. Some seed records name the wrong operator and call it 中科院, the Chinese Academy of Sciences; the service is CSTCloud's, and the two are related but not the same institution, so both spellings are in the aliases","confidence":"reported","evidence":[{"url":"https://linux.do/t/topic/1614982","date":"2026-10-21","proved":"'中科院免费提供的20GB对象存储服务，不限流量、不限读写次数，支持多协议接入'"},{"url":"https://linux.do/t/topic/1553784","date":"2026-10-21","proved":"'中科院 S3 配置, 注意现在不实名只有 1g 了, 实名才有 20g'"},{"url":"https://linux.do/t/topic/1793719","date":"2026-10-21","proved":"an S3 and WebDAV mounting walkthrough with rclone"}],"verdict":"fails-quota","verified_at":"2026-10-21T00:00:00.000Z","binding":"write-gated","binding_note":"Unlimited traffic and no request metering is exactly the right shape, and the gate is a national identity app. 1 GB unverified is 0.2% of the filter, so the identity decision is the only one that matters.","notes":"The most interesting shape in the topic and the most closed: unlimited traffic with S3, WebDAV and MCP is a user's workload exactly, and it is behind a national digital identity. This record is the second home for the provider, because the storage topic already carries cstcloud.json for its object-storage role.","extras":{"access_mode":"registration-gated","unlimited_traffic":true,"unlimited_request_count":true,"interfaces_beyond_s3":["webdav","mcp"],"aliases":["中国科技云 数据胶囊 (CSTCloud Data Capsule)","CSTCloud data capsule"],"cross_topic_record":"dossier/storage/cstcloud.json","cross_topic_note":"the storage topic carries the same provider for its object-storage role","slug_note":"the ledger reserved 'provider-3', which dossier/storage/provider-3.json already holds for 货摊网 (huotan). This record takes a descriptive slug"}},"claims":[{"path":"$.free_tier.stated","kind":"free-quota","num":1,"unit":"GB","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"},{"path":"$.limits[0].value","kind":"limit:write-gated","num":20,"unit":"GB","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"},{"path":"$.limits[1].value","kind":"limit:per-object-cap","num":20,"unit":"GB","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"}],"unknown":[],"history":[],"drift":[]}