docs(spec): the field ledger's notes and the liveness README cite a commit, or say what the number stood for, in place of dead tracker numbers

.changeset/20234-liveness-ledger-provenance-anchors-4b.md

@@ -0,0 +1,15 @@
+---
+'@objectstack/spec': patch
+---
+
+Notes in the `field` liveness ledger and sentences in the ledger README that cited a tracker number which no longer resolves now either cite a commit in this repository or say in words what the number stood for
+
+Clause-②: no
+
+Eleven citations in the `field` ledger's notes and twenty-nine in `liveness/README.md` pointed at
+a GitHub issue or pull request that no longer exists, so they led nowhere. Each one now either
+names the commit that did or recorded what the number pointed at or, where the number alone
+carried the meaning, says that meaning in words. The `liveness/` ledgers and their README ship in
+this package's tarball, which is why this is a release note at all. Prose only: no row's status,
+evidence, proof, producer or date changes, no README table row or heading is added, removed or
+renamed, and no schema, export or runtime behaviour changes.