Learn more about EAS in our docs
EAS optimism
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Offchain Attestation
UID:
0x99f02f70082203ab1f72abc7ee966bdca332d7d73642033cb78cef75306bc995
TIMESTAMPS:
Created: 05/04/2026 4:45:07 pm
Timestamp onchain
EXPIRATION:
Never
REVOKED:
No
Decoded Data:
address
Project Address0xF9bbFB758DBaE846470Dd9d22D076dBE150D8d79
bytes32
Contribution ID0xd13c1b6983565ab8bfec58ee1c6ce84144a2b5c7acdad94cbe46f532193cf1f8
string
Details<p>Ethereum On tour in Shanghai Jiao Tong University 4h</p><p>Ethereum On tour in Fudan University 4h</p><p>Work coordination, on-site setup.</p>
string
TypeEthereum On Tour
string
Proof<p>https://mp.weixin.qq.com/s/eUTeaeufwR7N0MYFwXA1BQ</p> <<imageList>> []
uint256
Start Date1777046400000000000000000000000
uint256
End Date1777391999999000000000000000000
uint256
Token Amount40000000000000000000
string
ExtendedIPFS Hash:
Referenced Attestation:
No reference
Referencing Attestations:
1 attestations referencing this one
Raw Data:
{"signer":"0x3148743D7bf16B74e64C5bE4D23FD5EfF46c4bcB","sig":{"domain":{"name":"EAS Attestation","version":"1.0.1","chainId":"10","verifyingContract":"0x4200000000000000000000000000000000000021"},"primaryType":"Attest","message":{"recipient":"0x3148743D7bf16B74e64C5bE4D23FD5EfF46c4bcB","expirationTime":"0","time":"1777913107","revocable":true,"version":1,"nonce":"0","schema":"0xc012dddde021c7258ff4671b1be08fe6b3b51d98bd0a89b43d020fafde24b476","refUID":"0x0000000000000000000000000000000000000000000000000000000000000000","data":"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"},"types":{"Attest":[{"name":"version","type":"uint16"},{"name":"schema","type":"bytes32"},{"name":"recipient","type":"address"},{"name":"time","type":"uint64"},{"name":"expirationTime","type":"uint64"},{"name":"revocable","type":"bool"},{"name":"refUID","type":"bytes32"},{"name":"data","type":"bytes"}]},"signature":{"v":27,"r":"0x4633aae1d8cf0b34c23d5f1ec2830673c37d11fbf7c166bd04b0bd1347eed926","s":"0x3a5438657c3c4225648a65968e66deb184ec0c268b6faec056084b7f1d06c36f"},"uid":"0x99f02f70082203ab1f72abc7ee966bdca332d7d73642033cb78cef75306bc995"}}
Latest Referencing Attestations
| UID | Schema | From | To | Type | Age |
| 0x8aa48d50e8788581495... | #256 | No recipient | OFFCHAIN | 13 days ago |
