The old links to company data that were included in the legacy Open Calais output are no longer supported.
For the convenience of legacy Open Calais users, a new attribute, legacyid, has been temporarily added to the er/company and er/TopmostPublicParentCompany disambiguation tags.
The purpose of the legacyid attribute is to enable you to map the old links, which are no longer supported, to the corresponding new links. This attribute will be available until August 31, 2015.
The company link and the legacyid attribute as they appear in the new Open Calais er/company tag (RDF output):
(Note that the openpermid attribute provides a direct link to company data via PermId.org.)
The legacyid attribute is not relevant to the JSON output format.