RFC‑VER‑0023 — Signature Verification Service

Validator‑Grade Multi‑Contributor Signature Authentication#

RefId: turn0browsertab1

Title: Validator Service for Multi‑Contributor Signature Authentication
Status: Draft
Author: Nawder Loswin + Copilot
Date: 2025‑11‑12
Version: 0.1

1. Purpose#

The Signature Verification Service (SVS) validates co‑signatures on remix scrolls against contributor registries.
It ensures:

shared authorship is authentic
signatures are cryptographically valid
symbolic signatures match contributor identity
timestamps align with export windows
lineage integrity is preserved
validator‑grade reproducibility

SVS is a core component of the Remixathon validator cluster.

2. Workflow Steps#

SVS follows a four‑stage verification pipeline.

2.1 Signature Extraction#

Parse signatures from:

remix_scroll.signatures

Extract:

contributor IDs
signature payloads
signature types (PGP, ECDSA, symbolic)
timestamp metadata

2.2 Registry Lookup#

Query the Contributor Registry for:

public keys
symbolic signature references
contributor identity
contributor active status

Registry lookup ensures signatures map to valid contributors.

2.3 Signature Validation#

SVS performs three checks:

Cryptographic Validation#

PGP
ECDSA
key‑pair match
payload integrity

Symbolic Validation#

Glyph‑based validator signatures checked against:

glyph library
contributor symbolic signature reference

Timestamp Validation#

Signature timestamp must fall within the scroll’s export window.

2.4 Verification Report#

SVS generates a validator‑grade report:

pass/fail per contributor
overall authorship status
checksum
dignity‑layer badge:

"authorship confirmed"

Report is appended to scroll metadata.

3. Schema Extension#

File:

registry/signatures/verification_schema.yml

Defines:

contributor ID
signature type
validation status
timestamp
checksum
lineage linkage

4. API Endpoints#

POST /verify/signatures#

Submit scroll for signature verification.

GET /verify/report/{scroll_id}#

Retrieve verification report.

GET /verify/contributor/{id}#

Check contributor signature status.

5. Python‑Style Stub#

File:

api/signature_verification.py

def verify_signatures(scroll):
    results = []
    for sig in scroll["signatures"]:
        contributor = lookup_contributor(sig["id"])
        crypt_valid = verify_crypto(sig["payload"], contributor["public_key"])
        symbolic_valid = verify_symbolic(sig["glyph"], contributor["symbolic_signature"])
        timestamp_valid = verify_timestamp(sig["timestamp"], scroll["export_window"])
 
        results.append({
            "id": sig["id"],
            "cryptographic": crypt_valid,
            "symbolic": symbolic_valid,
            "timestamp": timestamp_valid,
            "status": crypt_valid and symbolic_valid and timestamp_valid
        })
 
    return {
        "scroll_id": scroll["id"],
        "results": results,
        "overall_status": all(r["status"] for r in results)
    }

6. Dashboard Integration#

Verification Panel#

Contributors view signature validation results.

Badge Display#

Scrolls marked:

authentic authorship
partial authorship

Contributor Registry Link#

Click contributor ID → registry entry.

Lineage Graph Overlay#

Nodes annotated with verification status.

7. Validator Hooks#

Schema Compliance#

Reports must match verification_schema.yml.

Checksum#

Each report includes reproducibility checksum.

Lineage Integrity#

Verified co‑signatures preserved in ancestry index.

Dignity Separation#

Authorship badges displayed distinctly from narratives.

8. Concept Sketch (Textual)#

Verification Report: scroll-010
 └─ Contributors:
      - user42 (PGP)   → valid
      - user17 (ECDSA) → valid
 └─ Overall Status: authentic
 └─ Badge: "Shared Authorship Confirmed"

SVS ensures co‑signatures are authentic, validated against contributor registries, and preserved as validator‑grade lineage.