HDF5
application/octet-stream
Magic Bytes
Offset: 0
89 48 44 46 0D 0A 1A 0A
Hierarchical Data Format version 5 (HDF5) is an open-source file format and library suite maintained by The HDF Group for storing and managing complex data. It is extensively utilized in scientific research, engineering, and high-performance computing to organize large, heterogeneous datasets and multidimensional arrays efficiently. Designed as a flexible successor to earlier HDF standards, the format serves as a robust container that poses minimal security risks during standard data processing.
Validation Code
How to validate .hdf5 files in Python
Python
def is_hdf5(file_path: str) -> bool:
"""Check if file is a valid HDF5 by magic bytes."""
signature = bytes([0x89, 0x48, 0x44, 0x46, 0x0D, 0x0A, 0x1A, 0x0A])
with open(file_path, "rb") as f:
return f.read(8) == signatureHow to validate .hdf5 files in Node.js
Node.js
function isHDF5(buffer: Buffer): boolean {
const signature = Buffer.from([0x89, 0x48, 0x44, 0x46, 0x0D, 0x0A, 0x1A, 0x0A]);
return buffer.subarray(0, 8).equals(signature);
}
Go
func IsHDF5(data []byte) bool {
signature := []byte{0x89, 0x48, 0x44, 0x46, 0x0D, 0x0A, 0x1A, 0x0A}
if len(data) < 8 {
return false
}
return bytes.Equal(data[:8], signature)
}API Endpoint
GET
/api/v1/hdf5
curl https://filesignature.org/api/v1/hdf5