Stream Identity Protocol (SIP)

SIP Core

Stream Identity Protocol (SIP) for verifiable media trust

Define identity, rights, authorization, and moderation attestations at the bitstream layer so trust survives delivery path changes.

Challenges

What teams face today

Container metadata alone often breaks across repackaging and multi-CDN workflows.
Moderation and rights decisions are frequently detached from cryptographic provenance.
Teams lack a shared verification language between legal, trust, and platform engineering.
Risks

What happens without action

Unverifiable source claims in high-risk distribution paths.
Rights disputes without deterministic evidence history.
Inconsistent enforcement across players and partner channels.
Outcomes

What success looks like

A transport-resilient identity and attestation foundation.
Independent authority lanes for identity, ratings, and rights.
Reliable trust signals for downstream policy engines.
How It Works

1

Define identity frame semantics

Use deterministic, signed SIP frame structures that can be parsed and verified consistently.

2

Bind claims to content

Apply bitstream, perceptual, and structural content binding for stronger tamper detection.

3

Separate authority domains

Require distinct attestations for publisher identity, ratings, rights, and viewer authorization.

Capabilities

Bitstream-level embedding

Works across HLS, DASH, WebRTC, RTP, and progressive flows.

Canonical signatures

Deterministic CBOR encoding with Ed25519 signatures and replay-resistant frame sequencing.

Verification state model

Supports full-frame, delta, and heartbeat verification for real-time operations.

Evidence

SIP defines explicit threat models for impersonation, rights forgery, and downgrade attacks.
Protocol design separates open SIP Core from operational SIP Platform implementations.
Common Objections

No. SIP complements DRM by adding verifiable identity, rights, and authorization context.

Yes. Teams can start with SIP Core verification and phase in platform workflows later.

Frequently Asked Questions

Yes. SIP frame design and binding model are built for ABR and repackaging scenarios.