ROOT & BRANCH REGISTER — DAILY DIGEST Standard v0.10 §6.4. The Register is append-only. This digest is a Merkle root over every Entry, Record, Practice Record and Condition Observation held on the stated day, so that any of them can be shown to have existed on that date. The root is published in at least one public location the Registrar does not operate. The Register does not depend on any one such service to function. A published root is never changed. When the Register's contents change, a new digest is published alongside the old one rather than replacing it, and every root that was ever published stays true of the files it covered. The newest is always at /digest/latest.txt. published : 2026-09-23T1517Z day : 2026-09-23 root : eda760836eb7b4263c4c40c173a16e82f5f8d18fef627f5a422bfb6972d488bb leaves : 2 leaf hash : SHA-256 over the file's bytes, exactly as published tree : pairwise SHA-256 over raw digests, left then right; an odd node is paired with itself; leaves in the order listed below empty root : 0000000000000000000000000000000000000000000000000000000000000000 (a Register holding nothing) To verify without our software: fetch the export, hash each file, and recompute. register/verify.py does exactly this and nothing else. leaves, in tree order: b314c0e59cdacb998346bb54328f89c627a80036399de03d33fbb7364448dada work/WR-000001 758ff0272f730e7540d4ea1e76f8442c6a0bcac2c47b9162d41a1aefcfd69ba4 observation/RB-O-000001