인기 검색어
- 1코스피
8
- 2헐리우드
8
- 3코스닥
7
- 4셧다운
-2
- 5비트코인
-1
- 6ETF
4
- 7마스터카드
3
- 8달러
2
- 9이더리움
1
- 10스테이블코인
Timestamp Server
The solution we propose begins with a timestamp server. A timestamp server works by taking a hash of a block of items to be timestamped and widely publishing the hash, such as in a newspaper or Usenet post [2-5]. The timestamp proves that the data must have existed at the time, obviously, in order to get into the hash. Each timestamp includes the previous timestamp in its hash, forming a chain, with each additional timestamp reinforcing the ones before it.
