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Amma clutched the photograph from Srirangam temple, her weathered fingers trembling with memory. Four generations stood in that sacred courtyard—her grandmother in traditional silk, then her mother, herself young and radiant, and finally her daughter holding an infant granddaughter. That same year, her grandson introduced her to blockchain technology. She didn't fully understand it, but understood the promise: immutable records preserving heritage for descendants. Like the temple stones themselves, some things endure. She smiled, touching the image. Four generations now digitally secured, their Tamil lineage documented across time and technology. Family threads, eternally woven together.