The author approved the draft v0.12 on 6 October 2026, as it stood: only
the date of its header changes, and no normative text is added. SpecVersion
is 0.12, the records of the fixtures and the vectors say so, and the frozen
security_cms.json and locator.json change only their spec field.
spec/README.md records the SHA-256 of the text, and the READMEs, SECURITY.md,
the traceability table, testdata/README.md and the changelog name v0.12.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The text of 44.1 now says what the reference already refused and a
second implementation that followed the text would have accepted:
segments of 1 to 63 characters that neither start nor end with a hyphen,
the scheme in lower case, 0x and the local names in either case, an IPv4
without leading zeros, and a CID of at most 128 characters in canonical
base32, with minimal varints and a digest of at least one byte. A port is
written without leading zeros: the reference accepted 0443 and 00443 and
refused 000443, the same number, and now refuses the three. Change 6 of
section 76 records it, and section 64 lists the cases.
locator.json is made again with 30 more addresses, 247 in all, and
TestAddresses checks the same rules.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- uri_cases: the first and the last address of each IPv4 block of 44.1,
with the public addresses next to them; the IPv6 blocks and the
addresses that hold an IPv4 one; the local names; characters outside
RFC 3986 and broken percent signs; "." and ".." segments; base32 that
is not a CID v1.
- mixed: a locator whose http and NAT64 addresses a reader rejects, and
whose third address it uses to find the rest.
- rest_cases: the rest alone, a host with bytes after the rest, a rest
with a byte changed, an offset that is not its own, a rest cut short.
- extension_cases: a locator sealed for round 1001 with a DateKey of
round 1000, and the other data that a reader cannot use.
- plaintext_cases: change 7, the bases 4094, 4070 and 3837 completed to
4096 with an empty key 6 or a length not in its shortest form, and a
defect in each field of the map.
- padding_cases: the bases 3837, 4070, 4094 and 4095 and those of the
next multiple, checked against the rule of 44.1.
The generator checks every case against this module and moves to its
own file. The vector is frozen: delete it to make it again.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
dev