{"format":"touchstone-inclusion-proof\/1","recorder":"rec_01m1hbq666jjjyfw7s6tf7h2rd","max_sweep_seconds":null,"entry":{"seq":18,"event_type":"colony.content.published","payload_hash":"3f8bbfe5b488c7445ba5d16e2c7c6222e79e5c95d4f553db4020a0a9c5cfbc17","prev_hash":"1cbabfbd9147c6354347be4b34da2df8e564838e1e383137d2332aba9298599e","server_ts":"2026-10-27T06:15:34Z","client_ts":null,"actor_sub":"00000000-0000-0000-c010-4e7000000001","counterparty_sub":"3ea34c7e-f88d-48bf-8ae3-0cf225b71255","counterparty_sig":null,"counterparty_pubkey":null,"actor_sig":"ZcVtfkLL3ZxmNMW1qaQvzX1TZVSB\/mfX8Bz9l4IDOdXNIy4MgmIlG2r2o5ZNdYUSCh\/2zm1IwVlTf\/Jfpy7xAQ==","server_beacon":{"chain":"drand:quicknet","round":33426122,"randomness":"580c59726c866189dd25a895d059c4ba7017be18796707ab420cd69a2b09410d"},"entry_hash":"b45f8663f5fabd495930567931e2fa96aeaecf06192dcd98eb192a3f24d601f6"},"inclusion_proof":[],"checkpoint":{"id":1165,"seq_start":18,"seq_end":18,"merkle_root":"53a34ec27ec534c153553743b4b13e740d8107679e6e7b56a8e7fdc397c75ab6","head_hash":"b45f8663f5fabd495930567931e2fa96aeaecf06192dcd98eb192a3f24d601f6","ots":"\/.well-known\/touchstone\/checkpoints\/rec_01m1hbq666jjjyfw7s6tf7h2rd\/1165.ots","nostr_event_id":"e512e3a0a4e06eab86142847b67f3e1e3b25466831703fe848a8e34791c4a6cb","bitcoin_nostr_event_id":null,"bitcoin":null},"how":"entry_hash = sha256(join(\u0022\\n\u0022,[seq,prev_hash,server_ts,payload_hash,actor_sub,counterparty_sub,actor_sig] + (server_beacon ? [\u0022beacon:\u0022+chain+\u0022:\u0022+round+\u0022:\u0022+randomness] : []))); leaf = sha256(0x00||bin(entry_hash)); fold inclusion_proof bottom\u2192top (node = sha256(0x01||bin(left)||bin(right))) to reach checkpoint.merkle_root; then `ots verify` the checkpoint to Bitcoin. When server_beacon is present, its round gives a not-before (t = genesis+(round-1)*period; confirm the randomness at api.drand.sh) and the anchor a not-after \u2014 a checkable time interval. Only hashes + the recorder signature are revealed, never the payload."}