Re-vote notice

The GIP under number 181 was previously approved by vote. However, just before its execution, security checks showed a discrepancy between the Pendle TWAP feeds’ code to be deployed and the versions mentioned in the Watchpug audit report (available at https://github.com/Gearbox-protocol/security/tree/main/audits). Specifically, the code differed in licensing information and comments, which, although not critical, did not meet Gearbox’s security standards.

After that the code in prod & audit reports were updated, including a newer change to contract (PriceToSy pricing method), which changed the addresses of feeds due to Create2 opcode used.

This is the copy of original GIP-181 with updated txn log.

Author

Chaos Labs

Summary

Chaos Labs proposes whitelisting PT-corn-eBTC-27MAR2025 and PT-cornLBTC-26DEC2024 tokens as collateral within the WBTC pool.

Technical specification

Price oracle

PT eBTC (Corn) 27 Mar 2025 parameters:

• PT address: 0x44a7876ca99460ef3218bf08b5f52e2dbe199566
• market address: 0x2c71ead7ac9ae53d05f8664e77031d4f9eba064b
• Main oracle: Pendle 1800s TWAP with Main WBTC underlying price feed. Trusted: false
• Reserve oracle: Pendle 1800s TWAP with Reserve WBTC underlying price feed.

PT LBTC (Corn) 26 Dec 2025 parameters:

• PT address: 0x332a8ee60edff0a11cf3994b1b846bbc27d3dcd6
• market address: 0xcae62858db831272a03768f5844cbe1b40bb381f
• Main oracle: Pendle 1800s TWAP with Main WBTC underlying price feed. Trusted: false
• Reserve oracle: Pendle 1800s TWAP with Reserve WBTC underlying price feed.

WBTC pool

Quoted tokens

Token	PT eBTC (Corn) 27 Mar 2025	PT LBTC (Corn) 26 Dec 2024
Quota Limit	20	20
minRate	0.05%	0.05%
maxRate	15%	15%

Trade WBTC Tier 1 CM

Token	PT eBTC (Corn) 27 Mar 2025	PT LBTC (Corn) 26 Dec 2024
LT	0.87	0.87

Trade adapters:

• Pendle: markets 0xcae62858db831272a03768f5844cbe1b40bb381f & 0x2c71ead7ac9ae53d05f8664e77031d4f9eba064b

Transaction log

Txs log can be found here Md5 checksum is 70bcba4dac6ef20e285b39bad86503a8