Ecodots has quietly been putting Manaus factories' emissions on Hedera

On 9 January 2026 a new Hedera account created a topic with the memo “Registro de emissões - MAINNET”, Portuguese for “emissions register”. Ten minutes later it posted its first record, 900 kg of bottled gas burned in a furnace at Yamaha Motor Componentes' factory in Manaus.

Ten months on, that topic holds more than 2,400 records from factories in Manaus, plus a contract that has started storing batches of them. Off-chain evidence shows that Ecodots, a software company based in Manaus, Brazil, is behind this, though it never mentions Hedera in its public-facing communications, only on its records verification page.

We also found no public statement that Ecodots is using Hedera from any of the usual sources, such as the Hedera Foundation or The Hashgraph Association. This looks like a newly discovered use case, and could be a case of organic adoption rather than grant-driven usage.

01Who is Ecodots?

Ecodots (Ecodots Tecnologia da Informação LTDA) sells environmental-compliance software from Manaus, the industrial capital of the Brazilian Amazon. Its platform covers:

• Greenhouse-gas inventories: a company's yearly emissions, split by scope, with the source, emission factor and formula kept for every number.
• Waste records and legal requirements.
• PMOC: the maintenance plan Brazilian law requires for air-conditioning systems, which also tracks refrigerant gas, a potent greenhouse gas when it leaks.

The clients on its homepage include Salcomp, Visteon, Givaudan, Fujifilm do Brasil and Caixa Econômica Federal. It also runs a public register where two clients, Salcomp and Visteon, have published their 2025 inventories.

We found no public announcement that Ecodots uses Hedera. Its homepage, about, platform, GHG and public-register pages don't mention Hedera or blockchain. Hedera's ecosystem page and The Hashgraph Association's site don't mention Ecodots, and nor does anything we found by searching the web. There's one place Hedera does appear prominently though, inside Ecodots' product. Each emission has a verification page that says “Blockchain Hedera Hashgraph” and links to HashScan, but you only reach it with that emission's link.

02How we know it's Ecodots

The topic never says “Ecodots” in its memo, but the evidence on and off the chain all points the same way.

ecodots.com.br/verificar-emissao/e056776e…

Enlarge

Figure 1 · Ecodots' verification page, message 4341

Ecodots checks its own records against Hedera

1. Verified Record. The record in Ecodots' system still matches the fingerprint it wrote to Hedera.
2. Emission data. What the record is: here, 0.1 t of CO₂e from fuel burned on site in February 2025.
3. Blockchain proof. Where to find it: topic 0.0.10223163, message 4341. The fingerprints in that message are the ones the page shows.

03What Ecodots puts on Hedera

Everything runs through two accounts. A register account writes records to the emissions topic, and an owner account deployed Ecodots' contracts and created a token in April.

• Account Register account 0.0.10223014

  Writes every message on the topic and pays for it. Created 9 January 2026.

• Topic Emissions register 0.0.10223163

  “Registro de emissões - MAINNET”. 4,575 messages, which make 2,418 records once long records split across several messages are put back together.

• Account Owner account 0.0.10418559

  Deployed eight contracts on 3 April 2026 and owns the token below.

• Contract Fingerprint contract 0.0.10418600

  Stores fingerprints of batches of records. The only one of the eight contracts in use.

• Token Ecodots CDF Certificate 0.0.10419214

  An NFT for waste-disposal certificates under Brazil's national waste policy. None minted yet.

The records have changed over the year, in three steps you can see in Figure 2:

• January to early June: full records. Each emission went on-chain in full, with the client's name, the factory, the fuel or electricity, the quantity, the emission factor and the result. These are the 647 records we can read.
• From June: fingerprints only. On 2 June Ecodots switched to writing just a fingerprint of each record. A fingerprint (a hash) proves the record hasn't changed, without showing what's in it. 1,514 emission records have been written this way.
• October: air-conditioning, and more clients. Ecodots added PMOC records: refrigerant cylinders and air-conditioning equipment, 238 so far. At least three organisations that hadn't appeared before are on the topic in October. The records identify them only by ID numbers.

On the afternoon of 3 November the topic went quiet, and the fingerprint contract became busy. It stored 88 batch fingerprints in the next nine hours, about ten an hour, compared with 13 in the seven months before. Most batches cover five records. It's too early to tell whether the contract is replacing the topic.

Put together, Ecodots had written 2,519 records to Hedera by the end of 3 November, made up of 2,418 records on the topic and 101 batches in its contract. Only 647 of them, the full emission records from January to early June, show what was actually emitted, that's about a quarter (26%). Almost everything else is a fingerprint, 1,515 emission records, 232 air-conditioning records and the 101 contract batches prove that a record exists and hasn't changed, but not what's in it. So the clients and tonnes in the next section come from roughly a quarter of what Ecodots has put on-chain.

04Whose emissions?

The 647 readable records name four manufacturers in Manaus. All four are in the city's industrial zone, the Polo Industrial de Manaus:

• Salcomp, the biggest client on-chain, with 348 emissions, most of them industrial-process emissions for the second quarter of 2026.
• D.D. Williamson, a maker of caramel colouring. Its records are mostly fuel burned on site.
• Yamaha Motor Componentes, whose first record was the topic's first message.
• Impressora Amazonense, a printing firm, with fuel for its vehicles.

Together these records add up to about 3,463 tonnes of CO₂e. That's only part of the picture. The readable records are the ones from before June, and many cover a single quarter. Since then, more than 1,400 emissions have gone on-chain as fingerprints only.

The company on Hedera is Salcomp's Brazilian factory, Salcomp Industrial Eletrônica da Amazônia in Manaus. Its emissions are on Ecodots' register, and so is the fingerprint of its 2025 inventory, which was checked by SGS. So part of the climate reporting of one of the phone industry’s biggest suppliers is anchored on Hedera.

05What it means for Hedera

In fees, not much yet. In ten months Ecodots has paid about 140 HBAR, roughly US$12. Most of that went on deploying its contracts in April. The 4,575 topic messages cost about 36 HBAR in total.

The real signal is the kind of use. A local company with no announced link to Hedera picked it to make its clients' emissions data tamper-evident, and kept building on it:

• Real companies' compliance data. These are the greenhouse-gas inventories of multinational manufacturers' Brazilian plants.
• Strong signs of growth. New record types and new clients arrived in October, and the contract started batching on 3 November. Ecodots' other contracts, named for waste tracking, compliance checks and certificates, were set up in April but haven't been used yet, which suggests more is planned.

It's encouraging to see what appears to be Ecodots' organic adoption of Hedera – grant usage is great, but I think organic growth is more meaningful and what we're all hoping to see much more of.

While it's true that the network revenue generated by this use case is small, as it often is for these kinds of use cases, this usage signals that companies like Ecodots believe Hedera can add value for themselves and their customers.

06Verify our research yourself

On Hedera

• Emissions register: topic 0.0.10223163
• Sample messages: message 1 (first record, Yamaha Motor Componentes; long records continue in the next message), message 776 (Ecodots' CNPJ in a file name), message 2824 (a fingerprint-only record), message 3538 (Salcomp's 2025 ISO 14064 report, 1 Oct)
• Register account: 0.0.10223014
• Owner account: 0.0.10418559
• Fingerprint contract: 0.0.10418600
• Ecodots CDF Certificate token: 0.0.10419214

Off-chain sources

• Ecodots: homepage and client list
• Ecodots: about page, with its company name and CNPJ in the footer
• Ecodots public register: Salcomp's 2025 inventory
• Ecodots verification pages: message 4341 (verified), message 1 (edited after it went on-chain)