Find NFT Token ID
On Opensea
On the NFT Detail page, find the category Details
. Then, click on the Token ID number to copy it
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On Blockchain Explorer (Etherscan, PolygonScan...)
Visit the Blockchain Explorer where you hold your NFT:
Search after your address, click on ERC1155 Tokens Txns
Tab and copy the Token ID.
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caution
The Token ID can be as long as 256 characters, make sure you copy the all number.