diff --git a/src/schema/token.schema.json b/src/schema/token.schema.json
index 6af38698..41185e67 100644
--- a/src/schema/token.schema.json
+++ b/src/schema/token.schema.json
@@ -61,6 +61,10 @@
                 "negativeYield": {
                     "type": "boolean"
                 },
+                "yieldSourceId": {
+                    "type": "string",
+                    "description": "The token's id at its protocol's yield data provider, when the token address alone does not identify it (e.g. the Centrifuge share-class token id behind a Stellar deJTRSY wrapper). Read with extensions.protocol."
+                },
                 "reported": {
                     "type": "boolean",
                     "description": "Reported by users (illiquid or insolvent vault, suspected hack...). Set it on the token's own entry, not inside a wrapper's extensions.vault: the app warns on every market built on the token, directly or through a Spectra wrapper of it. Report-based and non-exhaustive, not an audit. Remove the key to lift the warning."
diff --git a/src/tokens/1500000000/cc6trapqd3nk7thukwpv5sl2jhkqgnxzvb6s6mvyfslrwakefuwzkz7j/index.json b/src/tokens/1500000000/cc6trapqd3nk7thukwpv5sl2jhkqgnxzvb6s6mvyfslrwakefuwzkz7j/index.json
index 78f305eb..0a3d66d3 100644
--- a/src/tokens/1500000000/cc6trapqd3nk7thukwpv5sl2jhkqgnxzvb6s6mvyfslrwakefuwzkz7j/index.json
+++ b/src/tokens/1500000000/cc6trapqd3nk7thukwpv5sl2jhkqgnxzvb6s6mvyfslrwakefuwzkz7j/index.json
@@ -5,7 +5,8 @@
     "symbol": "earnXLM",
     "decimals": 13,
     "extensions": {
-        "underlying": "CAS3J7GYLGXMF6TDJBBYYSE3HQ6BBSMLNUQ34T6TZMYMW2EVH34XOWMA"
+        "underlying": "CAS3J7GYLGXMF6TDJBBYYSE3HQ6BBSMLNUQ34T6TZMYMW2EVH34XOWMA",
+        "protocol": "Upshift"
     },
     "logoURI": "/images/tokens/1500000000/cc6trapqd3nk7thukwpv5sl2jhkqgnxzvb6s6mvyfslrwakefuwzkz7j.svg"
 }
diff --git a/src/tokens/1500000000/ccl3witwffxihv2i52ecv5dpieofstu3pbpr53ilplf2ip5khecxruty/index.json b/src/tokens/1500000000/ccl3witwffxihv2i52ecv5dpieofstu3pbpr53ilplf2ip5khecxruty/index.json
index 5f0d5ae4..edc9158b 100644
--- a/src/tokens/1500000000/ccl3witwffxihv2i52ecv5dpieofstu3pbpr53ilplf2ip5khecxruty/index.json
+++ b/src/tokens/1500000000/ccl3witwffxihv2i52ecv5dpieofstu3pbpr53ilplf2ip5khecxruty/index.json
@@ -5,7 +5,8 @@
     "symbol": "earnUSDC",
     "decimals": 13,
     "extensions": {
-        "underlying": "CCW67TSZV3SSS2HXMBQ5JFGCKJNXKZM7UQUWUZPUTHXSTZLEO7SJMI75"
+        "underlying": "CCW67TSZV3SSS2HXMBQ5JFGCKJNXKZM7UQUWUZPUTHXSTZLEO7SJMI75",
+        "protocol": "Upshift"
     },
     "logoURI": "/images/tokens/1500000000/ccl3witwffxihv2i52ecv5dpieofstu3pbpr53ilplf2ip5khecxruty.svg"
 }
diff --git a/src/wrappers/1500000000/cahpzleh6o6wjpicjavrlctycaydn52f4sm6ix3xjkwysaasshgzezbo/index.json b/src/wrappers/1500000000/cahpzleh6o6wjpicjavrlctycaydn52f4sm6ix3xjkwysaasshgzezbo/index.json
index 27efd07b..146670e6 100644
--- a/src/wrappers/1500000000/cahpzleh6o6wjpicjavrlctycaydn52f4sm6ix3xjkwysaasshgzezbo/index.json
+++ b/src/wrappers/1500000000/cahpzleh6o6wjpicjavrlctycaydn52f4sm6ix3xjkwysaasshgzezbo/index.json
@@ -23,6 +23,7 @@
             "redeem": false,
             "wrap": true,
             "unwrap": true
-        }
+        },
+        "yieldSourceId": "0x00010000000000040000000000000001"
     }
 }