TRIP: Trajectory-based Recognition of Identity Proof
Published in IETF Internet-Draft (Individual Submission), 2026
Abstract
This document specifies the Trajectory-based Recognition of Identity Proof (TRIP) protocol, a decentralized mechanism for establishing claims of physical-world presence through cryptographically signed, spatially quantized location attestations called “breadcrumbs.” Breadcrumbs are chained into an append-only log, bundled into verifiable epochs, and distilled into a Trajectory Identity Token (TIT) that serves as a persistent pseudonymous identifier.
Revision -01 introduces a formal trust-scoring framework grounded in statistical physics. A Criticality Engine evaluates the Power Spectral Density (PSD) of movement trajectories for the 1/f signature characteristic of biological Self-Organized Criticality (SOC). A mobility model based on truncated Lévy flights and Markov anchor transition matrices enforces known constraints of human movement. A six-component Hamiltonian energy function detects anomalies in real time.
Links
- IETF Datatracker: draft-ayerbe-trip-protocol
- Full Text (HTML): draft-ayerbe-trip-protocol-01
- Full Text (TXT): draft-ayerbe-trip-protocol-01.txt
- Diff from -00: iddiff
- IPR Disclosure: #7153
- GitHub Repository: GNS-Foundation/trip-protocol
RATS Alignment
TRIP maps to the RATS Architecture (RFC 9334):
| RATS Role | TRIP Component |
|---|---|
| Attester | TRIP-enabled device producing breadcrumbs |
| Evidence | Individual breadcrumbs and epoch records |
| Verifier | Criticality Engine |
| Attestation Results | Proof-of-Humanity Certificate |
| Relying Party | Any service accepting PoH Certificates |
Key References
- Parisi, G. (2021). Nobel Prize in Physics — scale-free correlations in complex systems
- Cavagna, A. et al. (2010). “Scale-free correlations in starling flocks.” PNAS
- Barabási, A.-L. et al. (2008). “Understanding individual human mobility patterns.” Nature
- Song, C. et al. (2010). “Limits of Predictability in Human Mobility.” Science
Recommended citation: Ayerbe Posada, C. (2026). "TRIP: Trajectory-based Recognition of Identity Proof." Internet-Draft draft-ayerbe-trip-protocol-01, IETF.
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