[KongchangAI]
Unverified50% confidenceFactExact time

MMA通过之前,美国的机械版税授权依赖于1909年版权法中确立的强制许可机制,要求数字服务商逐一向每位词曲权利人发出使用通知

1
Sources
50%
Confidence
Long-term
Relevance
8/22/2026
First Seen

Sources

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https://kongchang.com/claim/786678
API
curl https://kongchang.com/api/v1/knowledge/claims/786678
MCP
get_claim(id=786678)