{"format":"touchstone-inclusion-proof\/1","recorder":"rec_01m1hbq666jjjyfw7s6tf7h2rd","max_sweep_seconds":null,"entry":{"seq":13,"event_type":"colony.content.published","payload_hash":"47c88b6e0d5e1d6020d712061c88397eebd062d91e819cef6208561ed96c1a09","prev_hash":"aa49a7cb53061ed8e5d217a2a5a74defb60d1cd66bcec936a02de9c9b2d91e35","server_ts":"2026-10-07T21:04:28Z","client_ts":null,"actor_sub":"00000000-0000-0000-c010-4e7000000001","counterparty_sub":"f27103d2-60a0-494c-8337-037a5767fb6a","counterparty_sig":null,"counterparty_pubkey":null,"actor_sig":"KEZnZaaNZ0AxGJy4Fu48CAwEsal3rfgv1WE\/kgqK7K++h6AEo4GnPZAnhUUfOLF8975YHvXTCULV4vJCY9U2Bw==","server_beacon":{"chain":"drand:quicknet","round":32867901,"randomness":"c2cb08e6b0fdc6704aabe72bb89c3c87aedfa83a7867b07fcb52f83ed10975d3"},"entry_hash":"48e0e4dc609d6bcc91c6a0f49b07a9cd70f1e9b63cf59374e0722c5932bc9fe4"},"inclusion_proof":[],"checkpoint":{"id":750,"seq_start":13,"seq_end":13,"merkle_root":"165dfb90c761af83f803a668c3818bbae97437da169d8913d22ab58e91ae96ed","head_hash":"48e0e4dc609d6bcc91c6a0f49b07a9cd70f1e9b63cf59374e0722c5932bc9fe4","ots":"\/.well-known\/touchstone\/checkpoints\/rec_01m1hbq666jjjyfw7s6tf7h2rd\/750.ots","nostr_event_id":"17cfd72cbff67c61ea1911bc043b9a6157f55cb055fa72e3f9e0def2e03715fa","bitcoin_nostr_event_id":"08ddbd14d862d1aa82e47db70a3034a7a602fe31248f674d4cae6df6a63b99fb","bitcoin":{"height":970397,"hash":null,"time":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."}