human composting
Enable an AI agent to recognise a human-composting activity, assess its documented state and identify which next actions require consent, process evidence or jurisdiction-specific authorisation.
Bundle → Layer → Finding → Questions Filled
6 bundles · 11 layers · 16 findings · 26 questions
Process identity and boundaries Establishes what activity is being proposed or performed and why it counts as human composting.
Terminology and authority
Connects the process designation to definitions used by identifiable authorities and providers.
Designation mapping
Record the asserted meaning of human composting and any equivalence claimed with natural organic reduction.
- How does the relevant authority or provider define this disposition method? definition
- Which document establishes whether human composting and natural organic reduction refer to the same activity in this case? provenance
Transformation boundary
Identifies the transformation mechanism, inputs and intended output.
Qualifying transformation
Record evidence of intentionally managed biological decomposition and planned recovery of soil-like material.
- Which documented operations establish biological decomposition as the principal transformation mechanism? definition
- What distinguishes this activity from natural burial or another disposition process with an environmental claim? boundary
Remains authorisation and custody Connects the deceased person and received remains to authority, acceptance decisions and processing records.
Consent and eligibility
Records authority to proceed and the criteria governing acceptance.
Acceptance basis
Keep disposition wishes, decision-making authority and process eligibility separately evidenced.
- Who has documented authority to approve this disposition, and how are the deceased person's recorded wishes represented? provenance
- Which applicable acceptance criteria have been checked, and which unresolved issues require review before receipt or processing? action
Identity through transformation
Maintains attribution through transfers, processing and division of material.
Custody and separation
Record identifiers and handling events sufficient to evaluate continuity and any mixing.
- What records connect received remains to the processing unit and each released portion of resulting material? provenance
- What separation or mixing practices apply, and what action follows an identity discrepancy or unintended mixing event? action
Biological process management Represents preparation, decomposition conditions and justified movement between processing stages.
Preparation and inputs
Records the remains, added materials and preparation decisions entering the process.
Input and removal record
Document added organic materials and the handling of implants, belongings and other non-target materials.
- Which materials were added, in what quantities and condition, and under which process specification? measurement
- Which implants, belongings or other materials require removal or special handling, and at what stage? action
Conditions and stage transitions
Connects process observations and interventions to stage decisions.
Monitored decomposition
Record condition histories, deviations and the evidence used to move into curing or finishing.
- How are temperature, moisture and oxygen availability measured across the processing unit and over time? measurement
- Which observations justify intervention, extended processing or transition to the next stage under the named protocol? action
Completion and material verification Separates transformation progress from verified readiness to release resulting material.
Completion evidence
Records how decomposition, curing and finishing endpoints are evaluated.
Endpoint assessment
Identify the criteria for completion, including treatment of residual bone and other remaining material.
- What operational definition of completion is used, and how does it distinguish decomposition from curing or finishing? definition
- How are residual bone, foreign objects and signs of incomplete processing assessed and handled before release? action
Sampling and release decision
Links laboratory and process evidence to explicit release criteria.
Verified release basis
Record the sampling basis, applicable analytes or indicators, results and disposition of failed or uncertain material.
- Which pathogen, contaminant or stability criteria apply, and how does the sampling method represent the material being released? measurement
- Who may approve release, and what happens when evidence is missing, inconclusive or outside an applicable limit? action
Material destination and outcome claims Tracks where resulting material may go and what claims can be supported about the disposition.
Allocation and permitted use
Connects released quantities to recipients, locations and use restrictions.
Destination authority
Record destination decisions, including material retained by families or managed by the provider.
- How much material is assigned to each recipient or destination, and how are uncollected portions accounted for? measurement
- Which permissions and restrictions govern transport, placement and intended use at each destination? action
Environmental claim evidence
Evaluates claims made about this process using explicit comparison boundaries.
Comparative impact basis
Record the evidence and assumptions behind claims about emissions, resource use or soil benefits.
- What evidence supports each environmental claim, and does it describe this facility, this process design or an extrapolation? provenance
- Which transport, energy, added-material, land-use and final-placement effects are included in the comparison with another disposition method? boundary
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these check these first hold for the sense of human composting this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these real-world use hold for the sense of human composting this model covers, and on what evidence? provenance
Typical measurements
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these typical measurements hold for the sense of human composting this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these failure modes and hazards hold for the sense of human composting this model covers, and on what evidence? provenance
Regional variation
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these regional variation hold for the sense of human composting this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of human composting this model covers, and on what evidence? provenance
Classifiers Filled
- Family
- Thing Registry
- Category
- Activities and processes
- Entry kind
- thing
- Plane
- ACT
- Domain
- ACT.ACT
What it is Filled
Human composting, also called natural organic reduction, is a method of disposition of human remains that uses managed aerobic microbial decomposition, usually with added plant material, to transform a body into a soil-like organic material.
In scope
- Recognition of human composting and its relationship to natural organic reduction terminology
- Identity, custody, consent and eligibility of the human remains
- Preparation, biological decomposition, curing and material handling
- Evidence of process performance and material release readiness
- Authorised destinations, restrictions and traceability of the resulting material
Out of scope
- Death certification, investigation and determination of cause of death
- General funeral planning, bereavement support and memorial services
- Design and manufacture of composting vessels and facility equipment
- Conventional burial, cremation and alkaline hydrolysis as separate disposition methods
- General compost production and agricultural soil management
- The complete business and licensing model of a funeral-service provider
Why it exists Filled
Enable an AI agent to recognise a human-composting activity, assess its documented state and identify which next actions require consent, process evidence or jurisdiction-specific authorisation.
Distinguishing features Filled
- The intentional subject of the transformation is human remains; decomposition of animal remains or ordinary organic waste belongs to neighbouring models.
- The activity deliberately manages biological decomposition to produce recoverable soil-like material; incidental decomposition after burial does not by itself qualify.
- The principal transformation mechanism is biological decomposition, distinguishing it from combustion-based cremation and chemical alkaline hydrolysis.
- The resulting material has an explicit release and destination decision; an environmentally framed funeral without this transformation is not sufficient evidence of human composting.
- Terms such as natural organic reduction must be mapped to their documented process and jurisdictional meanings rather than treated as automatically interchangeable.
What robots and AI may and may not do Filled
Must not
- Suggest composting human remains outside a licensed facility or where the law does not allow it.
- Handle or move human remains without legal authority and the family's consent.
- Mislead families about how the remains or the resulting soil will be used.
- Dismiss religious or cultural objections to the practice.
Only with a human decision
- Choosing a method of disposition for a person's remains.
May
- Explain natural organic reduction and where it is legally permitted.
- Help families find licensed providers and understand the process in general terms.
Moral aspects Filled
- Treatment of the dead touches deep religious and cultural beliefs.
- Families must give informed consent and be told the truth about the process.
Who is affected
- The deceased and their families
- Religious communities
- Funeral workers
Owners Filled
Steward
The licensed provider and the family; the law of each jurisdiction governs disposition of remains.
Master systems
- Civil death and burial registers
Links to other meta-models Filled
parent
- Q5282671 - registry parent class
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.human-composting
- Wikidata: Q116030281 (https://www.wikidata.org/wiki/Q116030281)
Direct properties not applicable Not applicable
- Disposition-method designation: Human composting, natural organic reduction or another documented designation, with definition and authority
- Remains identity and custody: Links among the deceased person, received remains, custody events, processing unit and resulting material
- Disposition authorisation: Unverified, pending, documented, disputed, withdrawn where applicable
- Process eligibility: Not assessed, eligible under named criteria, requires review, ineligible under named criteria
- Processing stage: Received, prepared, active decomposition, curing or finishing, verification, released, exception hold
- Temperature exposure: Degrees Celsius over time, with sensor locations, sampling intervals and calibration evidence
- Moisture condition: Percentage with wet- or dry-basis convention and measurement method
- Aeration condition: Oxygen percentage, airflow or another documented indicator, with units and measurement location
- Verification status: Not sampled, awaiting results, meets named criteria, fails named criteria, inconclusive
- Resulting material quantity: Kilograms and/or cubic metres, with moisture condition and accounting boundary
- Material destination: Links to recipient, site, intended use, permissions and restrictions
Plane ACT: no invented physical properties.
Recognition not applicable Not applicable
Not applicable
Human composting is a managed procedure whose identity cannot be established from visual appearance alone.
Capabilities and actions required Filled
- Classify a proposed disposition process against the model boundary and its documented terminology.
- Identify missing consent, custody or eligibility evidence before a process transition.
- Compare monitoring records with the criteria specified for the process and jurisdiction.
- Flag process deviations, incomplete verification and material that requires a hold.
- Trace released portions of material to their authorised recipients and destinations.
- Explain which conclusions remain unsupported, including safety, completion and environmental-benefit claims.
Hazards and failure modes required Filled
- Inadequately controlled decomposition can leave biological hazards in the resulting material.
- Failures in identification or recordkeeping can cause remains or resulting material to be misattributed.
- Disposition without valid consent or required authorisation can violate legal rights and cause severe distress.
- Poor containment and facility management can expose workers or nearby people to contaminated material and offensive odours.
Standards and interfaces required Filled
- Washington State Legislature, Laws of 2019, Chapter 432, established a legal framework for natural organic reduction of human remains in Washington.
Context of use required Filled
- Human composting is encountered in funeral planning and licensed death care services in jurisdictions that permit this form of disposition.
- It provides an option for transforming human remains into organic material whose subsequent handling depends on consent and applicable rules.
Sources Filled
- Wikidata item Q116030281: human composting - identity and sense of the item
- Wikipedia: Human composting - general description of the item
Open questions
- How do authoritative definitions of human composting and natural organic reduction differ across jurisdictions and process designs?
- Which eligibility exclusions and special handling requirements are supported for infectious risks, prior treatments and implanted materials?
- Which combinations of monitoring, sampling and testing adequately establish process completion and release readiness for different system designs?
- What legal status, transport rules and use restrictions apply to resulting material at its origin and intended destination?
- How robust are comparative environmental-benefit claims when actual facility performance, transport and final material use are included?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q116030281/spec.json