{"op":"timestamp.stamp","digest":"15539a9cc06d3bc383ac7b08822caadf52e9de1210d2ff2a05fb44c19925a74a","digest_source":"sha256(data)","commitment":"3c586d598aea24febb11c052f157c5397f242f5cf652a2e005734b079a591903","round":29000000,"round_time_utc":"2026-05-26T13:49:27Z","not_earlier_than":"2026-05-26T13:49:27Z","claim":"this digest was bound to drand quicknet round 29000000; it could not have been created before that instant (trustless lower bound).","beacon":{"source":"drand","chain":"quicknet","round":29000000,"randomness":"dcfd9608551b8cee7417f5120db09e9f8c61b29f0c9b4115e5435fa332f5aa70"},"deterministic_given_round":true,"engine":"drand quicknet beacon -> sha256 hash-binding commitment","proof":{"scheme":"bls-unchained-g1-rfc9380","chain_hash":"52db9ba70e0cc0f6eaf7803dd07447a1f5477735fd3f661792ba94600c84e971","public_key":"83cf0f2896adee7eb8b5f01fcad3912212c437e0073e911fb90022d3e760183c8c4b450b6a0a6c3ac6a5776a2d1064510d1fec758c921cc22b0e17e63aaf4bcb5ed66304de9cf809bd274ca73bab4af5a6e9c76a4bc09e76eae8991ef5ece45a","round":29000000,"signature":"<48-byte BLS signature, hex>","randomness":"dcfd9608551b8cee7417f5120db09e9f8c61b29f0c9b4115e5435fa332f5aa70","randomness_is":"sha256(signature)","relays_agreed":"2/3","commitment_is":"sha256(digest || '|' || randomness)","verify":"(live) refetch the round, BLS-verify the signature, recompute commitment=sha256(digest||'|'||randomness) and check it matches"}}