How to Time-Stamp a Digital Document
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abstract = {The prospect of a world in which all text, audio, picture, and video documents are in digital form on easily modifiable media raises the issue of how to certify when a document was created or last changed. The problem is to time-stamp the data, not the medium. We propose computationally practical procedures for digital time-stamping of such documents so that it is infeasible for a user either to back-date or to forward-date his document, even with the collusion of a time-stamping service. Our procedures maintain complete privacy of the documents themselves, and require no record-keeping by the time-stamping service.},
apice = {TimestampJcrypto3},
author = {Stuart Haber and W. Scott Stornetta},
doi = {10.1007/BF00196791},
eissn = {1432-1378},
isbn = {9780123944290},
issn = {0933-2790},
journal = {Journal of Cryptology},
month = jan,
number = 2,
numpages = 13,
openalex = {W1997911919},
pages = {99--111},
publisher = {Springer},
title = {How to Time-Stamp a Digital Document},
url = {https://link.springer.com/10.1007/BF00196791},
urlpdf = {https://link.springer.com/content/pdf/10.1007/BF00196791.pdf},
volume = 3,
year = 1991
}