{"endpoint":"/api/anchor","title":"T2b Zulu Anchor: external timestamp anchor for the IRONLEDGER head","description":"Daily at 00:00Z the canonical head hash is wrapped in an a11.anchor.v1 record, SHA-256 digested, and submitted to public OpenTimestamps calendars, which aggregate commitments into Bitcoin. Proofs are downloadable and verifiable offline with the open-source ots client. Verifiable records, not certifications. Chain day numbering is PT-based and never shifts; Zulu applies to anchor stamps only.","routes":{"latest":"/api/anchor/latest","by_date":"/api/anchor/YYYY-MM-DD","ots_file":"/api/anchor/YYYY-MM-DD.ots","list":"/api/anchor/list","manual_run":"POST /api/anchor/run (Bridge auth)"},"ticket":"Day 259 outside audit, T2 external anchor half","license":"CC0","chain":"UNBROKEN","timestamp":"2026-09-06T14:59:55.531Z"}