The Cosmological-Constant Ledger

Can a lawful source dynamics select the observed vacuum fraction? This release turns the cosmological-constant question into a precise source-identifiability test. The QTT ledger starts with a geometric projection and a dimensionless microscopic amplitude: \ _=\, \, c4A⁴, =14ₒℂ (n\!\! u) ²\, d=13, \ so that the source reduction is \ ₏={12}. \ The central v5 theorem is dynamical. A finite source channel with two complementary ledger sectors has homogeneous share \ r₍+₁=+ (₁--) ₑ䂸, ₑ_=+. \ For every target \ (r₀, 1\), infinitely many completely positive, trace-preserving, source-symmetry-covariant channels realize that same unique attractor. The finite-age trajectory remains \ rₙ=r_+ (1--) ⁿ (r₀-r_), \ so convergence, stationarity, reachability, and a capacity bound do not by themselves select the observed amplitude. The missing source object is the exchange ratio \ {=1-}. \ Version 5. 0 therefore closes two different questions without conflating them: the static and dynamical non-uniqueness of the current source specification is proved, while a positive source value for \ (\) is not claimed until the microscopic exchange law is derived. The result is a constructive boundary: it states exactly what a future source theorem must provide and supplies a falsifiable negative control for any purported closure. The release also keeps the clock, A3, and Hubble-area faces separate, records the dependency between them, distinguishes the hybrid H0 sensitivity packet from a joint cosmological posterior, and carries the exact Julian-year convention. Comparator packets are audits, never source inputs. Status: GREEN: SIGMA-LAMBDA-STATIC-SOURCE-STATE-NONUNIQUENESS-CLOSED GREEN: SIGMA-LAMBDA-DYNAMICAL-CONSERVATION-NO-GO-CLOSED GREEN: SIGMA-LAMBDA-REACHABLE-ATTRACTOR-NONUNIQUENESS-CLOSED GREEN: SIGMA-LAMBDA-EXCHANGE-RATE-IDENTIFIABILITY-CLOSED GREEN: SIGMA-LAMBDA-CAPACITY-BOUND-NONSELECTION-CLOSED AMBER: SIGMA-LAMBDA-EXCHANGE-RATIO-SOURCE-DERIVATION-PENDING RED: SIGMA-LAMBDA-POSITIVE-SOURCE-AMPLITUDE-NOT-DERIVED Concept DOI: 10. 5281/zenodo. 21296708 Main book: Quantum Traction Theory: Main Book v10. 01 Website: quantumtraction. org Lexicon: QTT Lexicon Derivation Atlas: QTT Derivation Atlas Observatory: QTT Observatory DOI map: QTT DOI map Package: the PDF is the primary reader-facing file; the accompanying ZIP contains the LaTeX source, machine verifier, source packets, negative control, theorem receipt, checksum manifest, and scientific and render audits.