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Agents

• unique identifier (identity)
• type (individual or group; if group, what type of group, e.g. organisation, company or movement; auditor)
  • Develop or source a schema describing a minimum set of properties by agents type

An agent asserts their identity though digital signatures

Agents provide proofs of their properties through verified credentials 

Other parties can verify agent properties and make claims about their methods and results

Digital signature

Verified credentials 

Validation claim by third party

Activities

• activity class (e.g. IPCC categories)
• activity description including objective(s) 
• location
• start time
• end time (possibly)
• agent
• input(s) (e.g. materials and energy; consumables and non-consumables)
• process(es): a process links inputs to products and waste
• output(s) product + waste

• objective (experience, create, reduce, destroy, avoid, verify) (optional / not required in all instances)

* An audit is a special type of activity where the input is a claim and the output is an evaluation of that claim.

Ex ante: An agent asserts their intentions to act in a Projet Design Document (PDD) 

Ex post: An agent describe their actions in a Projet Design Document (PDD) 

The activity and its results and impacts are documented by the agent at intervals in a monitoring report (MR)

• unique identifier

Consider a token for an activity that contains all the essential elements in column 1. Such a token must have a time limit and proof of life requirements (e.g. minimum process data feed to confirm it is ongoing)

NACE activity codes

IPCC

NAICS

• location and temportal extent (either objective or referential)
• definition (in terms of parameters of interest)

States

• metrics referring to parameters
• type (actual [measured] or baseline [counterfactual])

*State as in environmental state (not political state)

Parameters/indicators for states

Parameters/indicators delivered by agents via PDDs and MRs

• unique identifier
• impact claim per state

• name
• definition
• unit of measure
• rationale
• calculation
• credibility

(Emission factors are parameters, for example.)

• unique identifier

• name
• author(s)
• applicability - type of agent, type of activity, state
• requirements (e.g. reporting requirements, calculation requirements)
• version
• method(s)
• precision
• accuracy / std error
• emission factors (defaults)

• unique identifier

• agent 
• activity
• "before" state for every every environment and aspect of the state under consideration
• "after" state for every every environment and aspect of the state under consideration
• causal connection between activity and the resultant state (e.g. scope 1 (primary/secondary), scope 2 or scope 3)
• standard followed