Division Decentralized systems

Blockchain

Glowing blocks of hexadecimal data float in a dark blue field, each joined to the next by a dashed link.
Plate · 01 Blocks, linked by their hashes

Discover the power of decentralized systems with our blockchain solutions. We build secure, transparent, and efficient systems that transform how businesses operate.

SHA-256 of the paragraph abovethis text

5fdd6be893b68d9e11eb733e2e25bfee7c92e36c88798fc3c5e20b20bbf34f62
Try the live chainSee the chain What we build

Chain lab · SHA-256 · proof of work

How a chain stays honest — running in your browsermined in advance

Every block below stores a word, a nonce and the fingerprint of the block before it. Its own fingerprint, a SHA-256 hash, is calculated from all of that. A block only counts when its hash starts with enough zeros, and the only way to find a nonce that does that is to keep guessing: that is the proof of work. Change one letter and the hash changes completely, and because the next block includes that hash, every block after it breaks too. Hiding an edit would mean redoing the work for the rest of the chain, so tampering shows.

  1. Change a word in any block.
  2. Every block from there on breaks.
  3. Re-mine to redo the proof of work, on your own device.

hash = SHA-256( # + nonce + data + prev )

Difficulty

Chain Valid · all four blocks sealed

Your device Re-mine to measure

  1. Block 1

    Valid

    Nonce
    60013
    Prev genesis
    0000000000000000000000000000000000000000000000000000000000000000
    Hash
    0000e08223b4fedeef14fc85bb6802e3c87185ad8895af990a2d078b7d1ab0a4

    Mined in advance, Difficulty 4

  2. Block 2

    Valid

    Nonce
    57240
    Prev
    0000e08223b4fedeef14fc85bb6802e3c87185ad8895af990a2d078b7d1ab0a4
    Hash
    000064976166189b13bba93c70feafdff139ec8af8d4d622203380424900ae7a

    Mined in advance, Difficulty 4

  3. Block 3

    Valid

    Nonce
    68892
    Prev
    000064976166189b13bba93c70feafdff139ec8af8d4d622203380424900ae7a
    Hash
    00004d16ff97cb3879430e44f8d5ec6459535b23ce6612d9133d37c9fa45de60

    Mined in advance, Difficulty 4

  4. Block 4

    Valid

    Nonce
    26752
    Prev
    00004d16ff97cb3879430e44f8d5ec6459535b23ce6612d9133d37c9fa45de60
    Hash
    00006fd421099a383cc1d9e9c37d9d71a0647165227bfcbab5389bef247347a4

    Mined in advance, Difficulty 4

What we build

Three words, on a chain

We build systems that are secure, transparent and efficient. Those three words are also blocks 2 to 4 of the chain above, and here is what each one means in a blockchain.

  1. Secure

    Each block carries the hash of the block before it, so changing any past record breaks every link that follows.

    Block 2 000064976166189b

  2. Transparent

    Everyone works from the same shared record and can check it for themselves, so every change leaves a trace.

    Block 3 00004d16ff97cb38

  3. Efficient

    One shared, verifiable record replaces the separate copies each party would otherwise keep and reconcile.

    Block 4 00006fd421099a38