Stamper Co., Ltd.
From Internet Computer Wiki
Self-Declaration
The self-declaration document can be found here: File:Stamper self declaration.pdf
The SHA256 hash of the linked PDF is C1BE3518EBE9A095DA56B02702FCEA349D720FA6CDF474172C7116DDE8FA4F23.
Identity Proof
Company information can be found here: File:Stamper Identity proof.pdf
The SHA256 hash of the linked PDF is 276737D61FDC07089F74D44865655B67191BE6073827C5773CB2D5C1D84D43D3.
Official Website (Stamper): https://www.stamper.network
Official Website (Cosmostation): https://www.cosmostation.io (Cosmostation is a PoS validator brand operated by Stamper)
Official Twitter: https://twitter.com/CosmostationVD