Lead
When your child turns 50, will the records you're keeping right now be readable?
Fifty years is a time scale that's hard to imagine when you're deep in the infant months. But if the intended recipient of these records is your child herself — the person who will grow up, have children of her own, outlive you, and eventually reach old age — then that full arc of time is the delivery window. Whether photos, videos, and text survive to reach her is a technical question, but it connects directly to why you're recording in the first place.
There is a body of research in information science and digital preservation that has been accumulating these answers for decades. What it says, applied to a box of baby photos and a cloud-backed parenting app, is worth knowing.
Format obsolescence: the lifespan of a file format
One of the primary threats to the long-term survival of digital data is format obsolescence: the state in which a file format becomes unreadable because supporting software or hardware no longer exists or is maintained — the point at which a file format can no longer be read because the software that processes it no longer exists, or the hardware that ran that software is gone.
The Library of Congress Digital Preservation portal evaluates file formats on criteria including breadth of adoption, openness of specification, quality of documentation, and independence from proprietary dependencies [1]. By those criteria, JPEG (standardized in 1992) and plain text encoded in UTF-8 score relatively well on longevity. In contrast, HEIC (High Efficiency Image Container) — the format Apple made the default in iOS 11 in 2017 — is based on the MPEG-H Part 12 standard and carries licensing complexity that makes it more vulnerable to long-term compatibility problems than JPEG [1].
The pattern from the last 30 years is instructive. Formats that were widely used in the early 1990s — Microsoft's Windows BMP as originally specified, Apple's PICT format, certain early TIFF variants — have already lost native support in some current software. Format lifespans are shorter than they feel.
Cloud service lifespans: a graveyard of data
When you entrust digital records to a cloud service, a second risk appears: the service itself can disappear.
Google Reader launched in 2005 and was shut down in 2013 — an eight-year run. Apple Aperture was sold from 2005 and lost support a decade later. Lala, a music cloud service, was acquired by Apple and promptly closed, taking users' playlists with it. These were large companies. They discontinued products anyway, for strategic, financial, or competitive reasons.
The principle that the digital preservation community has converged on in response to this risk is called LOCKSS: Lots of Copies Keep Stuff Safe: a distributed preservation strategy in which many independent copies across locations ensure no single loss is catastrophic. The LOCKSS system, described in a 2005 paper in ACM Transactions on Computer Systems by Maniatis and colleagues, is built on the insight that distributing many independent copies across locations means that any single loss can be compensated by the others [2]. Applied to personal records, the implication is that relying on any single cloud service is a single point of failure. Multiple copies — on different media, in different locations, with different organizational dependencies — is the baseline strategy.
The OAIS reference model: preservation is not archiving
The international standard that underpins institutional digital preservation is ISO 14721, known as the OAIS: Open Archival Information System: ISO standard reference model defining the responsibilities of an archive for long-term preservation and access (Open Archival Information System) reference model [3]. Libraries and national archives use it when designing systems for multi-decade data retention, but its logic applies at the personal level.
OAIS makes one distinction that is frequently overlooked in everyday practice: uploading data is not the same as preserving it. The model separates the act of receiving data (Submission) from the ongoing work of archiving it (Archival), which includes format migration, integrity verification, and confirmation that the data remains accessible. A file that was uploaded once and never revisited has been submitted, not preserved.
In practical terms: a folder of photos on an external drive that you haven't opened in five years might be fine, or might be corrupted. You don't know until you look. Preservation, in the OAIS sense, requires periodic verification — opening files, confirming playback, and migrating to current formats before the old ones become unreadable.
Paper: genuine advantages and genuine limitations
"Paper lasts longer than digital" is a claim that is partly true and worth understanding precisely.
Acid-free paper (pH 7 or above), stored under appropriate conditions — roughly 59–68°F (15–20°C), 30–50% relative humidity, away from direct light — can last five centuries or more. The international standard for permanent paper, ISO 9706, specifies requirements for acidity, alkaline reserve, and tear resistance; paper that meets this standard is designated "permanent paper" [5]. The 16th-century books that still read perfectly today were printed on such paper.
The corollary: paper that doesn't meet those conditions doesn't perform that way. The acidic paper used widely in the mid-20th century for photocopies and some photo prints degrades significantly after 50 years. And inkjet print longevity varies substantially — dye-based inks are typically estimated at 10–30 years, pigment-based inks at 80 years and beyond, with both figures sensitive to storage conditions. "I printed it, so it's safe" is only partially true.
The irreducible advantage of paper, though, is that it requires no playback infrastructure. Words and images on paper are accessible with no electricity, no software, and no compatible hardware. This is an advantage that no digital medium can match.
Designing for 50-year delivery
If you are thinking about records that are meant to reach your child across decades, three principles from the preservation literature are practical guides.
Choose formats with longevity in mind. JPEG for photos and UTF-8 plain text or PDF/A for written records are consistently recommended for long-term compatibility [1]. HEIC and other newer formats offer convenience but carry more uncertainty over multi-decade spans.
Distribute copies and know your export options. Single-service dependency is a single point of failure [2]. A local copy, an external SSD, and a second cloud service represent a basic distribution. Before committing records to any service, verify that it offers export in open formats — JSON or CSV for structured data, original image files for photos.
Verify periodically, and migrate when needed. Every five to ten years, open a representative sample of your stored files and confirm they are still accessible. If you encounter files that require software you no longer use or that a current system cannot read, that is the time to migrate formats, not after the problem becomes total [3]. Preservation is an ongoing practice, not a one-time act.
Summary
The longevity of a parenting record depends on medium, format, and preservation strategy — and these interact in ways that are not obvious. Cloud services are convenient but organizationally fragile [2]. Digital formats become obsolete, but choosing widely-adopted open standards extends their useful life [1]. Paper is format-independent but vulnerable to physical degradation. The OAIS model's core lesson applies to any medium: "stored" and "preserved" are not the same word [3].
Records are not an end in themselves. Delivery is.
References
- Library of Congress. Sustainability of Digital Formats: Planning for Library of Congress Collections. Washington, DC: Library of Congress; 2021. https://www.loc.gov/preservation/digital/formats/ (accessed 2026-05-13).
- Maniatis P, Roussopoulos M, Giuli TJ, Rosenthal DSH, Baker M. The LOCKSS peer-to-peer digital preservation system. ACM Trans Comput Syst. 2005;23(1):2–50. doi:10.1145/1047915.1047917.
- Consultative Committee for Space Data Systems. Reference Model for an Open Archival Information System (OAIS). Recommended Practice CCSDS 650.0-M-2. Washington, DC: CCSDS; 2012. ISO 14721:2012.
- Digital Preservation Coalition. Digital Preservation Handbook. 2nd ed. Glasgow: DPC; 2015. https://www.dpconline.org/handbook (accessed 2026-05-13).
- ISO 9706:1994. Information and documentation — Paper for documents — Requirements for permanence. Geneva: International Organization for Standardization; 1994.