Try decoding just the core part: mst2euvwzrp0472t (15 chars). Base64 of length 15 is invalid without padding. Padding with = gives 16 chars, divisible by 4. Let’s test conceptual decoding (pseudo):
core_id = raw.split('+')[1] # "mst2euvwzrp0472t" The string i+mst2euvwzrp0472t+fixed is not random noise — it follows a plausible pattern: a short prefix, a fixed-length alphanumeric core, and a status suffix separated by plus signs. The “fix” depends on context: remove metadata, decode URL encoding, or split fields. i+mst2euvwzrp0472t+fixed
import re def fix_identifier(raw: str) -> str: # Remove trailing +fixed cleaned = re.sub(r'+\w+$', '', raw) # Convert plus to space if needed cleaned = cleaned.replace('+', ' ') return cleaned Try decoding just the core part: mst2euvwzrp0472t (15 chars)
print(fix_identifier("i+mst2euvwzrp0472t+fixed")) Let’s test conceptual decoding (pseudo): core_id = raw
int("mst2euvwzrp0472t", 36) Output would be enormous — possibly a UNIX timestamp in nanoseconds. The presence of +fixed strongly suggests a manual annotation. In issue tracking systems, a key might be marked +fixed to indicate the associated bug or task has been resolved. Alternatively, in a data pipeline, a record might be flagged as “fixed” after cleansing.
The original string might have been i mst2euvwzrp0472t (space instead of plus), and +fixed is a status marker. Step 2: Check for Common Encodings 2.1 Base64 Decoding Attempt Base64 strings use A-Z, a-z, 0-9, + , / , and = . Our string contains + and alphanumerics, no / or = . Length: 22 characters ( i+mst2euvwzrp0472t+fixed ). Base64 requires length multiples of 4. 22 is not a multiple of 4, so it’s likely not pure base64 unless padding is missing.