Apex Intelligence Empire / ROCKYFILMS888 PTY LTD

kawaljeet.singh3008@gmail.com

General PSI cryptographic verification PSI-03 specifies a portable, Ed25519-signed bond that anchors a registered NDIS practitioner's professional identity to a DID-compatible decentralised identifier without requiring a central registry. The bond enables cross-provider, cross-border practice verification while preserving privacy and issuer sovereignty.

Practitioner identity in the NDIS ecosystem is fragmented. Each provider maintains its own register. PSI-03 defines a sovereign identity bond that lets practitioners carry a single verifiable credential across all providers without either the practitioner or the provider depending on a central authority.

{ "psi": "03", "practitioner_did": "<did:apex:practitioner:...>", "registrar": "<issuer /.well-known URI>", "bonded_at": "<RFC 3339>", "expires_at": "<RFC 3339>", "credentials": [ { "type": "registration", "body": "<JWT or VC>" }, { "type": "qualification", "body": "<verifiable credential>" }, { "type": "endorsement", "body": "<verifiable credential>" } ], "signature": "<Ed25519 detached signature, base64url>" }

The verifying party MUST: 1. Resolve the registrar's Ed25519 public key from /.well-known. 2. Verify the bond signature. 3. Verify each presented credential's chain to a trusted root.

A bond is not a proof of current registration. The verifying party SHOULD check the registrar's revocation list if real-time status is required.

None.

[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, March 1997. [RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC 2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174, May 2017. [RFC8785] Rundgren, A., Jordan, B., and S. Erdtman, "JSON Canonicalization Scheme (JCS)", RFC 8785, DOI 10.17487/RFC8785, June 2020. Author's Address Kawaljeet Singh Apex Intelligence Empire Balaclava, Victoria, Australia Email: kawaljeet.singh3008@gmail.com URI: https://apex-infrastructure.com