Every Spaniel is one of one.
We can prove it.

Cryptographic distinctness.

Hash every Spaniel's PNG with SHA-256. The set of digests is the same size as the set of Spaniels. Not one duplicate exists. Drop a single pixel anywhere on any token and that token's hash changes — uniqueness is enforced at the bit level.

  ∀ i, j ∈ { 1, 2, …, 69 420 },  i ≠ j

      SHA-256( spanielᵢ )  ≠  SHA-256( spanielⱼ )

  measured collisions:  0 / 69 420

Combinatorial cardinality.

The collection's reachable output space dwarfs the supply by more than thirteen orders of magnitude. The named-trait catalog alone produces tens of trillions of distinguishable arrangements; layered palette variation multiplies that by another five orders.

  Kₙₐₘₑ𝒹  =  ∏ | Tₖ |  =  14 · 13 · 15 · 15 · 5 · 12 · 12 · 9 · 6 · 9 · 6 · …
              ≈  2.94 × 10¹³     named-trait tuples

  Kₚₐₗₑₜₜₑ  =  37 · 33 · 29  =  35 409     palette-jitter cells per fur

  Kₜₒₜₐₗ  =  Kₙₐₘₑ𝒹 · Kₚₐₗₑₜₜₑ  ≈  1.04 × 10¹⁸

       log₂(Kₜₒₜₐₗ) =  59.9 bits
       log₂(supply) =     16.08 bits
       headroom =          43.8 bits  ≈ 1.5 × 10¹³ ×

Birthday-paradox bound.

Even under the worst-case assumption of uniform random sampling from the output space, the expected number of duplicate-Spaniel collisions in a draw of size 69,420 is essentially zero. The measured collisions match the bound: none.

  𝔼[ collisions ]  =  N (N - 1)  /  ( 2 · Kₜₒₜₐₗ )

                 =  69 420 · 69 419  /  ( 2 · 1.04 × 10¹⁸ )

                 ≈  2.32 × 10⁻⁹     collisions expected

  measured collisions in this drop:  0

Pixel-level distinguishability.

Hash distinctness implies one byte differs; we measured much more. We sampled thousands of random pairs and computed the L¹ pixel distance across every RGB(A) component. The closest pair we have ever found still differs in millions of color bytes — no two Spaniels are visually confusable, even to a machine.

  For all sampled pairs (i, j),  i ≠ j:

       ‖ pᵢ − pⱼ ‖₁  =  ∑ | pᵢ[k] − pⱼ[k] |   over all RGB(A) bytes

  min  ‖·‖₁  =   4 616 192     (closest sampled pair)
  mean ‖·‖₁  =  25 723 849     (average pair separation)
  max  ‖·‖₁  =  43 172 352     (furthest sampled pair)

  identical pairs found:  0

Per-family palette diversity.

Two Spaniels of the same named fur are not the same fur. Within every fur family — Blenheim, Golden, Tricolor, all of them — the perturbed coat palette takes a different value for nearly every individual. The hardest case (Blenheim, 9,617 members) still hits 88% distinct coats.

  ∀ fur family F  in the catalog:

       | distinct_coats(F) | / | members(F) |  ≥  0.88

Where your Spaniel lives.

The art that ships with your Spaniel is held in three independent layers. Any one of them is enough; together they make sure your Spaniel doesn't depend on us being here.

1. Permaweb. Each PNG is pinned to Arweave, a decentralized network whose endowment funds replicated storage on the order of two centuries. One-time payment, no renewals, no "if the company shuts down" failure mode.
2. spanielsyndicate.com. The domain is registered through April 20, 2036, with auto-renewal enabled. Our intent is to keep it serving well beyond — though the chain is the receipt, not any pledge we make.
3. The chain itself. The 32-byte provenance hash below is pinned in the Drop PDA on Solana. Wherever the bytes are mirrored, the SHA-256 commitment proves which art belongs to which token. The proof of what your Spaniel is lives forever on Solana, not on any server.