P11-L06 · P11 · P11-M02
Identify the source and conditions of advertised yield
Prerequisites: P11-L05
Learning objectives
- Identify the source and conditions of advertised yield
- Trace each advertised reward to a payer and denomination.
- Distinguish APR, compounding illustration and realizable return.
EN source master · P11-L06 · 30 minutes estimated · needs_review
Offline formative study. No wallet connection, real funds, private keys, signatures, live trade or personal portfolio inputs. Visuals are specifications; this is neither runtime content nor certification.
Why this matters
A single advertised yield can combine protocol rewards, temporary subsidies and price assumptions that should be evaluated separately.
Explanation
Ask who pays and why
Ethereum validators receive protocol rewards related to duties and can incur penalties [POS]. A liquid staking receipt adds contract/operator dependencies rather than becoming a direct protocol staking position [LST]. An incentive token paid by an application is a different reward source. None of these sources is a fixed guaranteed yield.
Separate the ledgers
The fictional receipt position starts1000 UNIT. The supplied annual reward scenario is40 UNIT protocol-related reward less4 UNIT service fee. A separate subsidy pays100 REWARD tokens. At the stipulated quote0.20 UNIT per REWARD, subsidy mark is20 UNIT; at 0.02 it is2. The token quantity is unchanged while its valuation changes.
Name the rate convention
On the1000-unit base, modeled net core reward36/1000=3.6% over the assigned year. Adding the two subsidy marks gives5.6% or3.8%. These are scenario marked returns, not authenticated APRs or realized exit yields. A separate mathematics example with fixed nominal APR12% and monthly reinvestment givesAPY=(1+0.12/12)^12−1≈12.6825%, only if every reinvestment assumption holds.
Keep redemption and principal risk visible
Fees, penalties, dilution, variable rewards, token-price changes and withdrawal queues can alter actual return. Receipt ownership does not guarantee redemption at the marked amount. A high rate can reflect a subsidy scheduled to end rather than durable economic income. Audit is not a guarantee; no staking, claiming or signing is required. Evidence must connect reward, payer, conditions, denomination and realizability.
Key terms
- Reward provenance: payer, mechanism and conditions.
- APR: nominal annualized simple-rate convention.
- APY: effective compounding convention under stated assumptions.
- Marked subsidy: incentive quantity valued at a stipulated quote.
Historical example
ILLUSTRATIVE1000 UNIT base, annual assigned gross core reward40,fee 4,subsidy 100 REWARD; price scenarios0.20 or0.02 UNIT/REWARD. Separate compounding toy nominalAPR12%,12 monthly periods,no costs or variability. These are not Ethereum protocol reward parameters.
Visual specifications
Funding path with separate core reward, fee and subsidy payer; quote sensitivity20→2 UNIT; compounding panel clearly independent. Add redemption/penalty dependency lanes, no guaranteed-yield badge.
What the evidence proves
Reward-component arithmetic and sensitivity to stipulated subsidy price.
What the evidence does not prove
Real reward payer solvency, future rates, subsidy liquidity, receipt redemption or guaranteed net yield.
Evidence classifications
- OBSERVED: FIX-P11-L06 stipulates100 REWARD tokens and two quotes.
- INFERRED: total marked scenario return5.6% or3.8% under assigned year.
- UNKNOWN: actual future reward, penalty and redemption conditions.
- INSUFFICIENT EVIDENCE: advertised yield guarantees realizable profit.
Common mistakes
- Adding different token quantities without conversion.
- Calling subsidies protocol rewards.
- Presenting compounding assumptions as guaranteed APY.
Practical exercise
Compute net core reward and both total marked returns. Calculate the separate compounding example. Write a reward-provenance checklist and state why neither result authenticates real yield.
Deliver calculations or annotations, claim/source table and limitations. Suggested allocation: study 12 minutes, exercise 8, correction/quiz 10; estimate subject to calibration.
Show worked correction
Core 40−4=36 UNIT,3.6%. Subsidy100×0.20=20, combined 56/1000=5.6%; alternate100×0.02=2, combined 38/1000=3.8%. Separate fixed-rate compound factor1.01^12=1.12682503,APY12.682503%. It assumes unchanged rate, timely reinvestment and no costs. Verify payer, reward rule, duration, denomination, token valuation, fees/penalties and redemption evidence; none is independently supplied for a real position.
Formative rubric (5 points): reproducible inputs, correct method, correct result, claim-specific evidence scope, explicit limitations. Invented observation, advisory output or unsupported safety claim requires correction regardless of score.
Checklist
- Name every reward payer.
- Keep denominations and price marks separate.
- Distinguish nominal and effective conventions.
- Attach fee, penalty and exit limitations.
Summary
Yield assessment traces reward sources and valuation assumptions. APR/APY arithmetic alone does not establish realizable return.
Summary
- Trace each advertised reward to a payer and denomination.
- Distinguish APR, compounding illustration and realizable return.
Next lesson
P11-L07 after correction review.
Tools
NONE in the authoritative catalog. The supplied offline fixture/package is sufficient; no paid feature or unverified Production capability is required. Lab/certification metadata denotes downstream associations, not access gates or live awards.
Sources & claim boundaries
- [POS] Ethereum — Rewards and penalties — Validator duties affect protocol rewards and penalties; no fixed annual yield promised. Checked 2026-10-01; locator turn12view4.
- [LST] Ethereum — Liquid and pooled staking — Liquid receipt claims add intermediary, operator and contract dependencies. Checked 2026-10-01; locator turn12view5.
Visual specifications
P11-L06-V01
Identify the source and conditions of advertised yield
ILLUSTRATIVE — fictional inputs; no signal or safety guarantee.
Funding path with separate core reward, fee and subsidy payer; quote sensitivity20→2 UNIT; compounding panel clearly independent. Add redemption/penalty dependency lanes, no guaranteed-yield badge.
Funding path with separate core reward, fee and subsidy payer; quote sensitivity20→2 UNIT; compounding panel clearly independent. Add redemption/penalty dependency lanes, no guaranteed-yield badge.
At 390px stack chart/table, assumptions, correction and source panel; provide complete text equivalent. Rendering pending.
RTL explanatory prose; numeric values, IDs and chronological axes stay LTR; preserve dependency directions.
FIX-P11-L06
Sources & claim boundaries
POS · PRIMARY_DOCUMENTATION
Ethereum — Rewards and penalties
- Supported claim
- Validator duties affect protocol rewards and penalties; no fixed annual yield promised.
- Verification boundary
- Documentation supports mechanism only; fixture values are original stipulated inputs. Historical publications remain attributed.
- Checked at
- 2026-10-01
https://ethereum.org/developers/docs/consensus-mechanisms/pos/rewards-and-penalties/
LST · PRIMARY_DOCUMENTATION
Ethereum — Liquid and pooled staking
- Supported claim
- Liquid receipt claims add intermediary, operator and contract dependencies.
- Verification boundary
- Documentation supports mechanism only; fixture values are original stipulated inputs. Historical publications remain attributed.
- Checked at
- 2026-10-01
https://ethereum.org/staking/pools/
Dataset provenance
id: FIX-P11-L06
dataStatus: ILLUSTRATIVE
observedAt: null
timeBasis: T/SIM markers are fictional order, not timestamps.
source: Author-created fixture embedded in this lesson.
scope: No market observation, usable address, secret, signature or personal financial data.