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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 veriffied credentials 

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

Digital signature

Demonstration of control (challenge-response)

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

States

• state definition (How to decide relevance?: Checlklist?)
• location and extent
• point in time
• metrics
• type (actual [measured] or baseline [counterfactual])

*State as in environmental state (not political state)

Indicators for states

Indicators delivered by agents via PDDs and MRs

• unique identifier
• Impact claim per state

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

• 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