ECC200
GS1DataMatrix: (01)00359267100023(17)210731(10)ER8731
https://products.aspose.app/barcode/recognize/datamatrix#result
check out the barcode number
https://www.pfizer.ca/sites/default/files/202102/HC-Approved_Pfizer-BioNTech_COVID-19_Vaccine_HPRC_EN_08Feb2021.pdf
look familiar?
soโฆ final conclusion.
the paper on the counter indicatesโฆ Pfizer Vaccine (product code 359267100023)
Exp Date 210731 (July 31st 2021)
Lot Batch ER8731
The reference picture of the Pfizer vaccine has same product code, and different batch & expiration date. The ECC200 code illustrates that it encodes the Product ID, Date & Lot Batch, and can be easily decoded via various means.