# VSC Delta Chain Report

## Chain Overview

| Field | Value |
|---|---|
| Base token ID | `DE08ACBD3706` |
| Latest token ID | `301C02A648FA` |
| Steps | 2 |
| Base size | 1.22 MB |
| Total delta size | 673 B |
| Traditional full-copy size | 3.67 MB *(base × 3)* |
| VSC base + delta size | 1.22 MB |
| Saved bytes | 2.44 MB |
| **Total chain reduction** | **66.65%** |
| Delta-only reduction | 99.95% |
| Chain hash | `d15532058e809fac38465820` |
| Latest root hash | `301c02a648fa8df041849b44` |

## Strategy Comparison

| Strategy | Storage required |
|---|---|
| Traditional full-copy × 3 | 3.67 MB |
| VSC Base + 2 delta(s) | 1.22 MB |
| **Savings** | **2.44 MB (66.65%)** |

> Traditional backup = store 1 full copy per state (base + one full copy after each delta).
> VSC backup = store base once + only the changed files for each delta.

## Steps

| Step | From | To | Added | Modified | Deleted | Delta size | Target root prefix |
|---|---|---|---|---|---|---|---|
| 1 | `DE08ACBD3706` | `751ACDAC82C5` | 0 | 1 | 0 | 368 B | `751acdac82c585b5` |
| 2 | `751ACDAC82C5` | `301C02A648FA` | 0 | 1 | 0 | 305 B | `301c02a648fa8df0` |

## Restore & Verify

- **Restore rule:** Base + ordered deltas applied in sequence
- **Verify model:** Latest folder root hash
- **Restore command:** `npm run restore-chain /home/runner/work/vsc-core/vsc-core/output/vsc-chain-DE08ACBD3706-to-301C02A648FA.json`
- **Verify command:** `npm run verify-chain /home/runner/work/vsc-core/vsc-core/output/vsc-chain-DE08ACBD3706-to-301C02A648FA.json <restored-folder>`

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*Generated by VSC Delta Chain Report — 2026-06-16T20:04:06.292Z*