Glossary

Key terms and acronyms explained

A
A2AAgent-to-Agent

Pay-per-call payment system using USDC for individual API requests without subscription.

Attestation

Cryptographic proof that data was delivered at a specific time, anchored on-chain.

API Key

Unique identifier for authenticating requests. Format: fo_live_xxx or fo_test_xxx.

C
Carbon Intensity

CO2 emissions per unit of energy (gCO2/kWh) for blockchain networks.

D
DAPDisclosure Attestation Protocol

Protocol for cryptographic receipts of data delivery, anchored on-chain.

DORADigital Operational Resilience Act

EU regulation for ICT risk management. Effective January 2025.

E
ESGEnvironmental, Social, Governance

Framework for evaluating sustainability and ethical impact of investments.

F
FREDFederal Reserve Economic Data

Database of US economic data used by Macro Oracle API.

G
GDPRGeneral Data Protection Regulation

EU data privacy regulation. FeedOracle is fully GDPR compliant.

H
HSTSHTTP Strict Transport Security

Security header forcing browsers to use HTTPS only.

M
MiCAMarkets in Crypto-Assets

EU regulation for crypto-assets. Article 66 requires sustainability disclosures.

Memory Layer

Historical snapshot storage for data audit trails and compliance evidence.

N
NFT Receipt

Non-fungible token serving as cryptographic proof of data delivery on Polygon.

O
OWIDOur World in Data

Research organization providing global energy and sustainability data.

P
Polygon

Layer 2 blockchain used for NFT receipts and attestation anchoring.

R
RWAReal World Assets

Physical assets (real estate, commodities) tokenized on blockchain.

Rate Limiting

Restriction on API requests per time window to ensure fair usage.

S
SLOService Level Objective

Target metrics for service quality (e.g., 99.5% uptime, <500ms latency).

T
TLSTransport Layer Security

Encryption protocol for secure data transmission. FeedOracle requires TLS 1.2+.

U
USDC

USD-pegged stablecoin used for A2A pay-per-call payments on Polygon.

W
Webhook

HTTP callback for real-time event notifications (Enterprise feature).

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