Privacy Notice for Contributors

Last updated: April 19, 2026

This Privacy Notice explains how Saho Labs, Inc. ("Tridi," "we," "us," or "our") collects and processes personal data from individuals who participate in Tridi's human data collection programs ("Contributors"). It supplements our general Privacy Policy.

Who We Are

Saho Labs, Inc. is a data infrastructure company headquartered in San Francisco, California, that builds the human data layer for embodied AI. Contributors wear multimodal sensor equipment to capture how humans interact with the physical world — egocentric video, stereo depth, tactile force, IMU, hand and body pose, and other signals — which we structure and license to AI research teams, robotics companies, and enterprises.

Contact:

• Privacy Team: privacy@tridi.ai
• Address: Saho Labs, Inc., San Francisco, California, United States

Why We Collect Your Data

We collect and process Contributor personal data to:

• Onboard you into our contributor network and verify eligibility (age, work authorization, location).
• Schedule and run capture sessions at Tridi-operated locations, partner sites, or your workplace.
• Capture multimodal sensor data of you performing real-world tasks while wearing our equipment.
• Pay you for completed sessions, including processing tax and identity information required for payment.
• Match you with future opportunities relevant to your skills, environments, or task experience.
• Improve capture quality through quality assurance review of recorded sessions.
• Comply with legal obligations and protect our rights and the rights of others.

Legal Basis (where applicable):

• Contract Performance: Onboarding and paying you for completed sessions.
• Legitimate Interests: Improving capture quality, scheduling, and contributor matching.
• Consent: Recording sensor data, releasing your captures to customers, and any optional research/training use.
• Legal Obligations: Tax reporting, identity verification, and applicable employment and data protection laws.

What Data We Collect

Identity and Contact Information

• Name, email, phone number, and preferred contact method.
• Date of birth (to confirm you are at least 18 years old).
• Government-issued identification or work authorization status, where required by law or for payment.
• Mailing address and tax/payment information.

Profile Information

• Languages you speak, environments you can capture in, prior experience with tasks (e.g., kitchen, manufacturing, retail), and self-reported skills.
• Photographs of capture environments you can offer (e.g., your kitchen) when you opt in to environment-based programs.

Capture Session Data

• Egocentric video captured by head-mounted cameras during sessions.
• Stereo depth, IMU, hand pose, and other sensor signals recorded by the capture rig.
• Audio of you describing your actions ("think aloud" narration), where the program calls for it.
• Task descriptions and labels you or our annotators apply to clips.
• Session metadata such as location type, duration, equipment configuration, and time of day.

Capture sessions intentionally focus on your hands, body, and the objects/environment you interact with. Where another person enters the frame, we follow our Privacy Policy for how that footage is handled.

Technical Data

• Device information when you use the contributor portal (browser, IP address, session analytics).
• Calibration and equipment IDs associated with your sessions.

How We Use Your Capture Data

Building Datasets for Customers

We process raw capture data to produce structured datasets — depth maps, 3D pose, hand tracking, segmentation, action labels, SLAM outputs — that we license to customers. Capture data may be reviewed by our internal annotation and quality assurance teams.

Customer Delivery

When you participate in a session, you authorize us to share the resulting capture data and derived signals with the customer who commissioned the dataset, subject to the consent and release you sign for that program. Different programs have different release scopes (e.g., research-only, commercial training, public benchmark).

Model Training and Research

Where you have provided consent, anonymized capture data may be used to train and improve Tridi's own models (e.g., for automated annotation), shared with foundation model partners for model training, or released as anonymized public research benchmarks. We apply privacy-enhancing techniques — including face/body blurring and removal of personally identifiable detail — before any external research release.

You can withdraw consent for future training/benchmark use at any time by emailing privacy@tridi.ai. Withdrawal does not affect uses prior to your withdrawal or copies already delivered to customers under your release.

Quality Assurance

Trained Tridi reviewers may watch your captures to verify task completion, equipment performance, and data quality. Reviews are logged and stored under role-based access controls.

Who Receives Your Data

Internal Recipients

• Tridi operations, capture, annotation, and quality assurance staff.
• Tridi engineering staff working on the capture platform.

External Recipients

• Customers: Capture data and derived signals are shared with the customer who commissioned the program, under the release you signed.
• Service Providers: Cloud hosting, video/sensor processing, payment, and analytics providers acting under contract.
• Foundation Model Partners: Where you have opted in, anonymized data may be shared with foundation model providers.
• Legal Authorities: Where required by law, court order, or to protect our rights or the rights of others.

International Transfers

Our infrastructure is operated primarily in the United States. If you participate from outside the US, your data will be transferred to and processed in the US under appropriate safeguards (Standard Contractual Clauses or adequacy decisions).

How Long We Keep Your Data

• Active Contributors: Profile, contact, payment, and session data retained while your contributor account is active and for as long as needed to support our customers' use of the data.
• Inactive Contributors: If you stop participating, your contributor profile is retained for 24 months after last activity, then deleted or anonymized, except where retention is required by law (e.g., tax records).
• Capture Data: Raw capture data and derived datasets are retained per the terms of the customer program that commissioned them. Aggregated and anonymized derivatives may be retained indefinitely.
• Legal Holds: We may retain data longer to comply with legal obligations or protect our rights.

Is Providing Your Data Mandatory?

Providing the data described above is necessary to onboard, schedule, and pay you. If you decline to provide required information, we will be unable to enroll you as a Contributor.

Automated Processing

We use automated tools to:

• Score capture quality (e.g., motion blur, occlusion, calibration drift).
• Match you to upcoming programs based on your profile.
• Pre-label actions and segments for human review.

Automated outputs are reviewed by trained Tridi staff before they affect your eligibility for paid sessions. You can request a human review of any automated decision by emailing privacy@tridi.ai.

Your Rights

In addition to your regional privacy rights (see our Privacy Policy), you have the right to:

• Access the personal data we hold about you.
• Rectify inaccurate or incomplete data.
• Erase your data ("right to be forgotten"), subject to limitations described below.
• Restrict or object to certain processing.
• Port your data in a commonly used format.
• Withdraw consent for future processing based on consent (e.g., model training).
• Request human review of automated decisions that materially affect you.

Data Deletion Limitations

You can request deletion of your contributor profile at any time by emailing privacy@tridi.ai. However:

• Capture data already delivered to a customer under a signed release cannot be retracted from that customer.
• Anonymized data already incorporated into trained models or public benchmarks generally cannot be removed from those artifacts.
• We may retain payment, tax, and identity records as required by applicable law.

Right to Lodge a Complaint

You may lodge a complaint with your local data protection authority if you believe your data has been processed unlawfully.

Security

We implement administrative, technical, and organizational measures to protect your data — including encryption in transit and at rest, role-based access controls, audit logging, and on-prem capture hardware where required. See the "Data Security" section of our Privacy Policy for more detail.

Contact

For questions about this Notice or to exercise your rights:

• Email: privacy@tridi.ai
• Address: Saho Labs, Inc., San Francisco, California, United States