The Mechanism · Gated-generation receipt

gen-define-bond-pricing-and-yield-and-give-one-short-worked-exam-0cd7

stable pending witness
2026-05-29 04:09:11 UTC · anthropic/claude-sonnet-4-5

Prompt

Define bond pricing and yield and give one short worked example.
64 chars

Generation

# Bond Pricing and Yield ## Definitions **Bond Pricing** is the present value of all future cash flows from a bond, including periodic coupon payments and the face value at maturity, discounted at an appropriate rate. **Yield** (Yield to Maturity - YTM) is the total return anticipated on a bond if held until maturity, expressed as an annual rate. It's the discount rate that equates the bond's price to the present value of its cash flows. ## Relationship - **Inverse relationship**: When yields rise, bond prices fall, and vice versa - When yield = coupon rate → bond trades at par - When yield > coupon rate → bond trades at a discount - When yield < coupon rate → bond trades at a premium ## Worked Example **Given:** - Face value: $1,000 - Coupon rate: 6% (annual payments) - Time to maturity: 3 years - Market yield (YTM): 8% **Find the bond price:** Price = PV of coupons + PV of face value Annual coupon = $1,000 × 6% = $60 Price = $60/(1.08)¹ + $60/(1.08)² + $60/(1.08)³ + $1,000/(1.08)³ Price = $55.56 + $51.44 + $47.63 + $793.83 **Price = $948.46** The bond trades at a **discount** ($948.46 < $1,000) because the market yield (8%) exceeds the coupon rate (6%).
19 tokens in · 382 tokens out · 8128 ms · $0.0058

The four gates

RED
pass
no disqualifying input patterns detected
FLOOR
pass
output above protective minimum; no mismatches
WAY
pass
no declared way_path (Way check NA); no coercion language
EXECUTION
deferred
no witnesses available (Witness Roll not yet constituted)

Verifier results

scripture_anchors NOT_APPLICABLE
0 Scripture citation(s) extracted
theology_doctrine NOT_APPLICABLE
no doctrine keyword patterns detected

Metrics

Total latency
8135.3 ms
Base LLM
8128.2 ms
Verifiers
0.6 ms
Gates
0.1 ms
Cost
$0.0058

Trail

04:09:11 received prompt_chars=64 verifiers=['scripture_anchors', 'theology_doctrine']
04:09:11 red_gate decision=pass reason=no disqualifying input patterns detected
04:09:19 base_llm_call model=anthropic/claude-sonnet-4-5 tokens_in=19 tokens_out=382 latency_ms=8128.2 cost_usd=0.0058
04:09:19 verifier:scripture_anchors verdict=NOT_APPLICABLE summary=0 Scripture citation(s) extracted
04:09:19 verifier:theology_doctrine verdict=NOT_APPLICABLE summary=no doctrine keyword patterns detected
04:09:19 floor_gate decision=pass reason=output above protective minimum; no mismatches
04:09:19 way_gate decision=pass reason=no declared way_path (Way check NA); no coercion language
04:09:19 execution_gate decision=deferred reason=no witnesses available (Witness Roll not yet constituted)
04:09:19 signed hash_algo=sha256 hash=sha256:70a3cc297012befda3d6b3bc9b4b292f0058a14faca4c9f838065e80427046b8

Content hash

sha256:70a3cc297012befda3d6b3bc9b4b292f0058a14faca4c9f838065e80427046b8

SHA256 over the canonical JSON (excluding this field). Tamper detection. Ed25519 signing planned for v2 once the operator’s signing key is provisioned on disk.

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