Decoder profile verd-pillow/1stable

§8 References

docs/standards/VER-1.0-errata.md — the errata ledger (E1, E8, E10, E12, E22)
standards/ver/1.0.1/VER-1.0.1-errata-annex.md — the normative item text
standards/ver/1.1-draft/VER-1.1-draft.md §8.3 — the corpus as a 1.1 deliverable
standards/ver/1.1-draft/RELEASE.md row 9 — the blocking checklist row
VERSIONING.md §3.4 condition 3 — the publication bar this satisfies; §4 — the CPNP invariant
services/verd/src/verd/cpnp.py, services/verd/src/verd/hashing.py — the reference implementation