Funding
Funding not disclosed
Founders
Product
Problem
Organizations that need to exchange files, credentials, payments, or messages must rely on centralized services that introduce high fees, latency, and trust dependencies, making it difficult to guarantee the integrity and authenticity of transferred data.
Solution
Sum provides a distributed proof‑of‑stake blockchain protocol that enables verifiable transfers of digital assets without a central authority. Clients submit signed transactions containing a payload hash, nonce, and timestamp; validator nodes verify the signatures and reach consensus before appending the transaction to an append‑only ledger. Finality is achieved in under five seconds, and the base fee is approximately $0.0008 per transaction, dramatically reducing costs compared to traditional intermediaries. The protocol supports encrypted routing of messages and files, cryptographic signing of credentials and contracts, and instant cross‑border payments, all with built‑in tamper evidence and auditability.
Target Audience
Primary customers include educational institutions, healthcare providers, legal and financial organizations, and enterprises that require secure, low‑cost transfer of documents, credentials, payments, or confidential messages.
Features
- Cryptographically signed transactions with payload hashing, nonce, and timestamp for tamper‑evidence
- Distributed proof‑of‑stake validator network requiring three or more confirmations for finality
- Sub‑second transaction finality (under five seconds) across any geography
- Extremely low base fee (~$0.0008 per transaction) for all transfer types
- End‑to‑end encrypted routing of files and messages, with ciphertext only visible to the network
- Built‑in support for document signing, transcript delivery, medical record exchange, and cross‑border payments
- Append‑only ledger providing immutable audit trails accessible to any participant